AGENDA - Concrete Reinforcing Steel Institute (CRSI) · PDF fileAGENDA 933 North Plum Grove Road | Schaumburg, IL 60173-4758 | Tel. 847.517.1200 ... Dick Birley Larry Campbell Sam

REFERENCE: 2015 Spring Technical Meeting DATE: 3.12.15

LOCATION: Tempe Mission Palms, Tempe, Arizona TIME START: 8:00 am

MEETING: Fabrication Committee TIME END: 10:00 am

PAGE: 1

AGENDA

933 North Plum Grove Road | Schaumburg, IL 60173-4758 | Tel. 847.517.1200 | Fax 847.517.1206 | www.crsi.org

STEEL REINFORCED CONCRETE: It Enables. Adapts. Endures.

COMMITTEE MEMBERS

Member Name Position (if applicable) Affiliation Voting

Member Consulting

Member

David R. Rosene Chairman Gerdau Long Steel North America X

Todd W. Stevens Vice Chairman Dimension Fabricators, Inc. X

Robert W. Hall, Jr. Secretary Gerdau Long Steel North America X

Mark Agee Whitacre Engineering Company X

Richard H. Birley Condor Rebar Consultants, Inc. X

Larry Campbell CMC Rebar X

Samuel Conley Whitacre Engineering Company X

Kevin R. Cornell Salit Specialty Rebar X

Lee Disbury Coral Steel Company X

Jeff Estep Farwest Steel Corporation X

Rob Faircloth Contractors Materials Company X

Peter Fosnough Harris Rebar X

David A. Grundler, Jr. aSa - Applied Systems Associates, Inc. X

Matt Hedke Barton Malow Company X

Dennis L. Hunter Gerdau X

Eric Kraeutle Harris Rebar X

Leon Leber KRB Machinery Co. X

Dave Maul Davis Wire Corporation X

Mark D. Newman CMC Rebar X

Robin Pemberton Schnell SPA X

Ryan Snell CMC Construction Services X

Kevin Soule Soule Software X

Dale Thomas CMC Rebar X

Brice Wager Gerdau X

Todd S. Weishaupt Harris Rebar X

Tony Johnson Staff Liaison Concrete Reinforcing Steel Institute

Quorum requirements: 40% (10 out of 23)

MEETING: Fabrication Committee PAGE: 2

AGENDA (cont.)


1. STANDING ITEMS

1.1. Call meeting to order/welcome [2 min., Rosene]

1.2. Present anti-trust statement, Robert’s Rules sheet for guidance [2 min., Rosene]

1.3. Standing roll call [5 min., Attendees]

1.4. Review/approve minutes from previous meeting: 11/04/2015 [2 min., Rosene]

1.5. Review/approval of agenda [2 min., Rosene]

1.6. Review Committee roster, mission statement [2 min., Rosene]

2. Review of ballot RBF-020415 "Bend Shapes for Concrete Reinforcing Steel" [20 min., Johnson]

3. Task Group report “Fabrication of Stainless Steel Reinforcing Bars” [10 min., Cornell]

4. Low temperature fabrication of high strength ASTM A615 reinforcing bars [10 min., Discussion]

5. NEW BUSINESS

5.1. What type of document do we need to produce resulting from the Bend Shapes ballot?

5.1.1. Should we wait to incorporate the following list of items below? (obtained from TG)

5.2. Bend curvature tolerance

5.3. Bend diameters (minimums, finished, etc.)

5.4. Length of hooks (A and G legs) for fabrication

5.5. Standard / minimum pin sizes

5.6. 180 degree hooks

5.7. Bending for Grade 100 / High Strength Steel

6. Next meeting, agenda items

7. Adjournment

ATTACHMENT #: 1 FIGURE/TITLE: Minutes of November 4, 2014 Meeting REFERENCE: 2015 Spring Technical Meeting LOCATION: Tempe Mission Palms, Tempe, Arizona MEETING: Fabrication Committee DATE: 3.12.15

ATTACHMENT

1. Minutes of November 4, 2014 Meeting



Meeting Minutes

Committee: Fabrication Committee 2014 Fall Business &

Technical Meeting

Date: November 4, 2014

Time: 3:00 pm – 4:00 pm

Location: Swissotel, Chicago, IL

Voting

Members

Present:

Mark Agee

Dick Birley

Larry Campbell

Sam Conley

Kevin Cornell

Lee Disbury

Jeff Estep

Rob Faircloth

Pete Fosnough

Dave Grundler

Robbie Hall

Dennis Hunter

Erik Kraeutle

Mark Newman

David Rosene

Ryan Snell

Kevin Soule

Dale Thomas

Brice Wager

Todd Weishaupt

Whitacre Engineering

Condor Rebar Consultants

CMC Rebar

Whitacre Engineering Company

Salit Specialty Rebar

Coral Steel

Farwest Steel

Contractors Materials Co.

Harris Rebar

aSa

Gerdau

Gerdau

Harris Rebar

CMC Rebar

Gerdau

CMC Rebar

Soule Software

CMC Rebar

Gerdau

Harris Rebar

Voting

Members Not

Present:

Matt Hedke

Dave Maul

Robin Pemberton

Todd Stevens

Barton Malow Company

Davis Wire

Schnell

Dimension Fabricators

Visitors: Mike Barrett

Andre Belland

Tim Berg

Bob Boeving

Chris Casey

David Coker

Pete Diggs

John Dolphin

Tony Eilts

Anthony Felder

Dennis Fontenot

Gerdau

Rebarfab

aSa

Soule Software

ISA

Gerdau

Gerdau

GDS

Harris Rebar

Concrete Reinforcing Steel Institute

CMC

Rick Hazekamp

Richard Huza

Danielle Kleinhans

Leon Leber

Bill Luken

David McDonald

Jose Mendoza

Mike Mota

Rodney Patrick

Jim Riemenschneider

Mark Rinehart

Greg Rohm

Tim Thomas

John Turner

David Wilbanks

David Wright

Sioux City Foundry

Salit Specialty Rebar


KRB

Contractors Materials Co.

EIG



CMC

Akzo Nobel

CMC Rebar

Harris Rebar

American Steel Fabrication


Gerdau

CMC Steel TX

Staff Liaison: Anthony Johnson Concrete Reinforcing Steel Institute

The meeting was called to order by Chairman David Rosene at 3:00 pm. Self introductions were made by

all members and guests in attendance. All attendees were reminded of the CRSI Anti-Trust Policy and

that this and all CRSI meetings will be conducted in accordance with this policy.

The minutes of the March 4th, 2014 meeting were reviewed. Motion to accept was made by Pete

Fosnough motion seconded by Dennis Hunter, and approved by a unanimous vote of voting members

present.

The agenda was reviewed and approved by a unanimous vote of voting members present following a

motion for approval by Dennis Hunter and a second by Erik Kraeutle.

Chairman Rosene reviewed the list of applicants who have applied for membership on the committee. In

additional to the previously submitted list of applicants for membership, the following have also recently

applied for membership in the committee Jeff Estep, Dick Birley, Rob Faircloth, Lee Disbury and Bryce

Wager. Chairman Rosene approved this list of committee members.

The draft mission statement for the committee was review with no comments, Tony Johnson was tasked

with formulating the current bullet points into text.

Robbie Hall reviewed a document developed by the task group on bending. This document was

previously developed under the detailing committee and has already been balloted once, but the ballot

failed due to insufficient returns. The document will be updated to include changes from the new ACI

318-14 and will be balloted again in the Fabrication Committee prior to the next meeting of the

committee. There is interest in incorporating this document into a standard to be developed by this

committee.

Tony Felder undated the committee on the changes resulting from the recent publication of ACI 318-14,

the changes will be identified in the previously discussed bending document.

The committee has received a draft document for the fabrication of Stainless Steel reinforcing bars. Pete

Fosnough motioned that a task group should be formed to review the document, the motion was seconded

by Kevin Cornell and was approved by all members present. The task group will be chaired by Rob

Faircloth, and will have the following additional members, Kevin Cornell, Bill Luken, David Rosene,

Suresh Gupta, David McDonald, and Rick Huza. Pete Fosnough suggest that Tally and Outokumpu. The

task group was tasked with reviewing the document as soon as possible.

The ATC-115 draft report was recently issued. Mike Mota requested that everyone take some time to

review and forward any comments to Mike by November 25th, so that he can compile as forward the

combined industry comments to ATC. A copy of this document has been uploaded to the committee

website.

New Business. A discussion was held relating to the measurement of bend radii. Dennis Hunter made a

motion to formulate a task group to study the J dimension for fabricating bends. The motion was

seconded by Pete Fosnough. The task group for this effort will be Dennis Hunter, Robbie Hall, Todd

Weishaupt, Pete Z, Pete Fosnough and John Turner.

The meeting was adjourned at 3:52 pm by approval of all members present following a motion by Dennis

Hunter and seconded by Jeff Estep.

Respectfully submitted

Tony Johnson, CRSI Staff Liaison.

ATTACHMENT #: 2 FIGURE/TITLE: Committee Mission Statement REFERENCE: 2015 Spring Technical Meeting LOCATION: Tempe Mission Palms, Tempe, Arizona MEETING: Fabrication Committee DATE: 3.12.15

ATTACHMENT

1. Committee Mission Statement

To provide leadership in the practice of fabricating reinforcing bars for reinforced concrete construction.

To develop and maintain the standards on fabrication of reinforcing bars, including the measurement of fabricated reinforcing steel and appropriate acceptance and rejection criteria.

To maintain Chapter 7, Fabrication, of the CRSI Manual of Standard Practice.

To prepare CRSI Technical Notes covering various aspects of fabricating reinforcing bars for reinforced concrete construction.

To maintain liaison with the following American Concrete Institute Committees:

• ACI 117, Specification for Tolerances for Concrete Construction and Materials • ACI 315, Details of Concrete Reinforcement



ATTACHMENT #: 3 FIGURE/TITLE: Fabrication of Stainless Steel Reinforcing Bars Standard – December 8, 2014 version

REFERENCE: 2015 Spring Technical Meeting LOCATION: Tempe Mission Palms, Tempe, Arizona MEETING: Fabrication Committee DATE: 3.12.15

ATTACHMENT

1. Fabrication of Stainless Steel Reinforcing Bars Standard – December 8, 2014 version



1

CRSI

Standard Practice for Stainless Steel Reinforcing Bar Fabrication Facilities

December 8, 2014

This Standard does not purport to address all the safety concerns, if any, associated with its use. It is the responsibility of the user of this Standard to establish appropriate safety and health practices, and determine

the applicability of regulatory limitations prior to use.

1. INTRODUCTION 1.1 This standard describes standard practice for fabrication quality processes for stainless steel

reinforcing bars. 2. REFERENCED DOCUMENTS

2.1 CRSI Manual of Standard Practice 2009 2.2 ASTM A955/A955M – 14(or most current issue) Standard Specification for Deformed and Plain

Stainless-Steel Bars for Concrete Construction 2.3 ASTM A276 – 10(or most current issue) Standard Specification for Stainless Steel Bars and Shapes 2.4 ASTM A700 – 05(or most current issue) Standard Practices for Packaging, Marking, and Loading

Methods for Steel Products for Shipment 2.5 ACI 318 – 14(or most current Issue) Building Code Requirements for Structural Concrete &

Commentary 2.6 SPECIALTY STEEL INDUSTRY OF NORTH AMERICA – Stainless Steel Fabrication 2.7 SPECIALTY STEEL INDUSTRY OF NORTH AMERICA & NICKEL DEVELOPMENT INSTITUTE – Stainless Steel

Rebar Guidelines for Shipping, Handling, Fabrication and Placement 3. DEFINITIONS

3.1 FQM – Fabrication Quality Manual 3.2 PQS – Plant Quality Statement

3.2.1 A statement from a Company Senior Executive that outlines the plant’s commitment to Quality 3.3 FM – Fabrication Manager

3.3.1 A manager responsible for all issues relating to fabrication within a plant 3.4 FQI – Fabrication Quality Inspector(s)

3.4.1 Personnel responsible for fabrication quality activities and documentation 3.5 CRSI CA – Concrete Reinforcing Steel Institute Certification Administrator 3.6 IA – Inspection Agency

4. FQM - All Plants Shall Develop & Maintain a Fabrication Quality Manual Containing: 4.1 To be signed by an authorized representative of the manufacturing organization 4.2 Document Facility Name, street address & telephone number and the name of the contact person at

the facility 4.3 Describe requirements for annual updating 4.4 Include an organization chart, and a description of the duties and responsibilities assigned to key

personnel in the quality program. 4.5 Identify the measuring and testing equipment and procedures used to determine that the product

and materials meet minimum requirements per specifications. 4.6 Identify the frequency and methods of measuring and testing equipment calibration and

requirements for record keeping.

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4.7 Include a PQS from a Senior Company Executive that outlines the plant’s commitment to quality. 4.8 Describe access to the FQM that shall allow access for all personnel involved in fabrication. 4.9 Describe the methods for assurance and documentation of the presence of the FM and the FQI

during fabrication/production and all plant operations dealing with stainless steel and other products. 4.10 Describe the authority of the FM and FQI. 4.11 TRAINING – The FQM shall include key elements used to train personnel and to document this

training, including as a minimum: 4.11.1 Training provided to the FQI and other personnel 4.11.2 Describe requirements for the FM (or designated representative) led meetings to review and

evaluate the quality techniques of all the FQI(s) once every six months and to assess compliance with the FQM.

4.11.3 Fabrication & Material Handling training received by all employees. 4.11.4 Fabrication Forms signed by the FQI. 4.11.5 Minutes of FM/FQI review and evaluation meetings. 4.11.6 FM evaluation of the FQI(s) in the plant. 4.11.7 Frequency of Training, by job description, of all individuals within the plant. 4.11.8 Frequency of Re-certification of FQI(s) and other personnel.

4.12 RECEIPT, IDENTIFICATION, SEGREGATION, AND REJECTION – The FQM shall document methods used to receive, identify, segregate, and reject non-conforming stock and fabricated stainless steel reinforcing bars. The FQM shall include as a minimum methods used to:

4.12.1 All stock coil and straight bars received shall be examined by FQI’s for potential contamination, discolorations, patina, seams, deformation height, and other similar visible abnormalities of concern.

4.12.2 All deviations considered from normal of the above, shall be brought to the immediate attention of the FM and producing mill.

4.12.3 Material to be inspected shall be documented with the size and grade of bar, mill manufacturer, date received, heat number, date of mill notification, and the name and signature of the FQI making the inspection. The material shall be set aside in a designated area away from stock bar until inspected and approved for use or rejected and removed from inventory. The documented information shall also be kept in a permanent log maintained by the FM noting also the date of inspection, the name of the mill inspector, and the disposition of the material after inspection.

4.12.4 Material that develops apparent suspect contamination during storage or after fabrication shall be brought to the attention of the FM. A decision then needs to be made as to whether the producing mill needs to be called for inspection and advice, whether the material is acceptable, and/or whether the material can be repaired by acceptable methods. If the material is considered unacceptable and rejected, it shall be identified with a “reject” tag and quarantined for disposition. It shall then be deducted from inventory.

4.12.5 Material deemed by an FQI to be out of tolerance after fabrication, shall be either altered into correct tolerance or be identified with a “reject” tag and quarantined for disposition and then deducted from inventory.

4.12.6 Verification that the requirements for the frequency of inspection shall be followed and documented.

4.13 REPAIR MATERIALS & EQUIPMENT – The FQM shall include methods used to repair materials and/or equipment used for the repair of cosmetically discolored stainless steel damaged from contamination or heat (welding or heading). The FQM shall include as a minimum:

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4.13.1 Generally soap and water will clean ordinary deposits of grease, dirt, and similar contaminants. A thorough rinse and drying shall follow this method of cleaning.

4.13.2 If soap and water does not remove the suspected contamination, contamination caused from carbon steel and/or heat (welding or heading oxide) shall require removal either by glass bead blasting, flapper wheels, aluminum oxide discs, and/or wire brushing with a new and clean austenitic stainless steel wire brush. A re-pickling and/or passivation of the surface may be required to restore corrosion resistance.

4.13.3 Inspection forms used by the FQI to document compliance 4.13.4 Frequency of inspection.

4.14 STAINLESS INSPECTION ASSESSMENT – The FQM shall include methods used to repair suspect cosmetic surface contaminated stainless steel reinforcement bars. The FQM shall include as a minimum methods used to insure that:

4.14.1 FQI’s are trained and knowledgeable as to what qualifies as an acceptable, suspect, or non-acceptable stainless steel reinforcing bar for use in construction.

4.14.1.1 Inspection standards shall be defined in inspection training procedure. 4.14.2 On site, the fabrication shop has, at a minimum, several new and clean austenitic wire

brushes for cleaning small discolorations. 4.14.3 The FQI’s and other authorized personnel under their supervision shall know what materials

are not to be used in an attempted repair of damaged or contaminated stainless steel reinforcing bars


4.15 OUTDOOR STORAGE – The FQM shall include methods used to store stock and stainless steel reinforcing bars outdoors to protect them from potential airborne and physical contact contamination. The FQM shall include as a minimum methods used to insure that:

4.15.1 Even with extended storage, it is not considered necessary to cover stainless steel reinforcing bar if it is stored outside and not subject to potential airborne ferrous contamination.

4.15.2 All stock or fabricated stainless steel reinforcing, coil or straight steel shall not be stored directly on the ground when stored outside. It shall be kept either elevated or stored on non-carbon steel dunnage or have some type of durable clean material between it and grade.


4.16 HANDLING & STORAGE – The FQM shall include methods used to handle and store stainless steel reinforcing prior to fabrication to minimize contamination or mechanical damage. The FQM shall include as a minimum, methods used to ensure that:

4.16.1 Stainless Steel reinforcing bars must be handled and stored and protected in a manner that minimizes the likelihood of damage caused from airborne contamination

4.16.2 Stainless Steel reinforcing bars shall be lifted with specifically dedicated nylon strapping of sufficient strength. These nylon straps shall not to be used for handling any other materials.

4.16.3 Fork trucks used in the direct handling of coil or straight stainless steel reinforcing steel shall have their forks covered with a stainless steel “sock” or other non-carbon steel material.

4.16.4 Stainless Steel Rebar bundles shall be tied with plastic strapping or an appropriate gauge of stainless steel tie wire. 9GA PVC coated wire may be used for master bundling. Under no circumstances shall steel carbon strapping or carbon steel tie wire be used for bundling or tagging.

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4.16.5 All racking for the purpose of storage of straight bars shall have any members that come in contact with the stainless steel protected and/or covered with wood, stainless steel, or a synthetic product similar to Nylatron D.S.M.

4.16.6 All stock lengths or fabricated stainless steel reinforcing shall not be stored directly on the ground whether it is stored inside or outside. It shall either be kept elevated and stored on non-carbon steel dunnage or if stored on grade, shall have some type of durable clean material between the stainless material and grade.

4.16.7 All certified plants of fabricated stainless steel reinforcing shall be either exclusive to the fabrication of stainless steel reinforcing or in a facility that contains no carbon steel fabrication or any related products that might increase the risk of carbon steel contamination.

4.16.8 Inspection Forms shall to be used by the FQI(s) to document compliance. 4.16.9 Verification that the requirements for the frequency of inspection shall be followed and

documented. 4.17 BENDING & SHEAR FABRICATION – The FQM shall include methods used to bend and shear stainless

steel reinforcement bars to minimize damage. This shall include fabrication from both coiled and straight stainless steel reinforcing bars. The FQM shall include methods used to ensure that:

4.17.1 Sheared lengths of stainless steel reinforcing bars meet specified lengths and are checked to be within tolerances set forth by the current edition of CRSI’s Manual of Standard Practice.

4.17.2 Dimensions and angles of bent stainless steel reinforcing bars shall be compared and checked for their specified dimensions and for tolerances set forth by the current edition of CRSI’s Manual of Standard Practice.

4.17.3 All fabrication equipment used in fabricating stainless steel reinforcing bars shall be dedicated machinery made specifically to fabricate stainless steel reinforcing bars. This machinery shall insure that all pressure points, pinch points or friction points in contact with stainless steel reinforcement during fabrication is made from either carbon steel hardened to a minimum of 35 Rockwell C, stainless steel material, or synthetic material such as Nylatron D.S.M. or equal.

4.17.4 Stainless steel reinforcing bars shall be fabricated in a plant that is either exclusive to stainless steel reinforcement or one that contains no carbon contamination.

4.17.5 Coiled bar deformations shall be checked for ASTM conformity with a depth micrometer. This shall be performed at the beginning of a coil, the middle of a coil during fabrication, and the end of the coil, or the last fabricated piece of that coil or production run. Measurements shall be recorded and cataloged according to the mill manufacturer, coil number, heat number, and project designation. Deformations not complying with minimum ASTM specifications shall be brought to the immediate attention of the FM.

4.17.6 Inspection Forms are to be used by the FQI(s) to document compliance 4.17.7 Verification that the requirements for the frequency of inspection shall be followed and

documented 4.18 HANDLING AND STORAGE AFTER FABRICATION – The FQM shall include methods used to handle and

store materials after fabrication of stainless steel reinforcing bars to minimize damage and contamination. The FQM shall include as a minimum methods used to insure that:

4.18.1 All methods of handling fabricated stainless steel reinforcing bars are employed to insure that no carbon steel (ferrous) contact is made with the stainless reinforcement.

4.18.2 All bundling and tagging is accomplished with stainless steel wire or rod, nylon zip-ties, or nylon banding, all within the weight limitations set forth in the current edition of CRSI’s Manual of Standard Practice.

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4.18.3 See 4.13 “HANDLING AND STORAGE” above for other recommendations regarding the handling and storage of fabricated stainless steel reinforcing bar.


4.19 SHIPPING & HANDLING 4.19.1 If fabricated stainless steel reinforcing is to be tarped in shipping, the fabricated bar shall be

first covered with clean polyethylene sheeting to protect it from possible physical contamination from the tarp.

4.19.2 Although not necessary in all cases, if there is reason to believe that the stainless steel reinforcement may become contaminated in storage at the plant, in shipping, or at the jobsite, plastic shrink or stretch wrap shall be applied to provide 100% cover to the individual bundles of fabricated stainless reinforcing steel.

4.19.3 All bundles of fabricated stainless steel reinforcement shall have warning tags outlining proper handling of stainless steel reinforcement at the jobsite.

4.20 EXTERNAL AUDITS – The FQM shall include methods used for handling External Audit documents. The FQM shall include as a minimum methods used to insure that:

4.20.1 The FM addresses in writing to the CRSI CA and IA each deficiency noted in the inspection reports, within 30 days of the inspection. If no action is taken on a noted deficiency, the FQM shall provide methods for documentation justifying inaction.

4.20.2 If the FM takes exception with the deficiencies and no action is taken by the FM, the FM shall provide methods documenting his/her position and justification for no action taken for each challenged deficiency.

4.20.3 The FM realizes that a review will be then performed by the CRSI CA and IA and recognizes that their impending decision will be final.

4.20.4 All documentation relating to an external audit is retained in the Plant’s files. 4.20.5 If a failed audit has been determined as final, a fabrication facility can lose its CRSI

certification until a rescheduled audit, at the fabricators expense, can be rescheduled. 4.20.6 The current status of “Certified Stainless Reinforcing Steel Facilities” will be maintained on

CRSI’s website. Status and dates will reflect “CURRENT”, “FAILED”, “FAILED UNDER REVIEW”, and “APPLICATION RECEIVED”.

4.21 CUSTOMER COMPLAINTS – The FQM shall include methods used for handling customer complaints. The FQM shall include as a minimum methods to insure that:

4.21.1 The FM or other designated person immediately addresses a customer complaint and determines the root cause.

4.21.2 If necessary, changes in procedure and or training to minimize further complaints of identical or similar issues shall be documented in the FQM and put in place by the FM and FQI’s

4.21.3 In all cases, the handling of a customer complaint shall result in a “closed loop” remedy and one that results in continuous improvement.

4.21.4 Inspection forms are used by the FQI to document compliance.. 4.22 NON-COMPLIANCE – The FQM shall include methods for handling non-compliance issues raised by

any of the plant’s personnel in conformance with a continuous quality improvement plan. The FQM shall include as a minimum:

4.22.1 Procedures to identify, document, and report the non-compliance, to classify the severity of the issue, specify measures if appropriate or material rejection, inspection of corrections, determination of root cause changes, etc.

4.22.2 Auditing the procedures used in the FQM

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4.22.3 Changers in procedure and/or training to minimize further non-compliance of identical or similar issues shall be documented in the FQM and put in place by the FM and FQI’s.

Item 1.

1. Inspection of stainless steel reinforcing bars

a. Bars shall be visually inspected prior to shipment using corrected vision to determine any non-uniform appearance.

b. The evaluation shall document the presence of: i. Uniformly distributed Small brown/red spots (like measles) uniformly

distributed throughout or stains can be a sign of possible poor microstructure. ii. Individual localized areas of small brown/red spots or stains

iii. Uniform areas of continuous brown/red staining over the length of the bar can be a sign for possible poor microstructure.

c. The appearance of red/brown stains and spots shall be subject to further evaluation as

follows:

i. If the bar exhibits uniformly distributed small brown/red spots or stains that are not close to areas of the bars that have been welded or mechanically ground, then the bars shall be segregated from conforming product.

1. Bars may be subjected to further microstructural and chemical examination.

a. The results of the examinations shall be documented. 2. If microstructure and chemical properties of the bars are found to be

suitable for the type of stainless steel being fabricated, the steel may be cleaned and released from quarantine.

a. Methods for cleaning of the bars shall be documented in the PQM.

Non Uniform Appearance: Non uniform appearance can be defined as either physical contamination by oil, dirt, mud or stains, which are not detrimental to the integrity of the reinforcing bars but purely cosmetic or, rusty spots or stains, which may or may not be of detrimental nature. It is necessary to understand, what is detrimental and what is cosmetic. Rusty spots can be formed on stainless steels due to:

• Carbon steel contamination. This is not detrimental but if in excess, should be cleaned before shipment.

• Rusting due to mechanical damage. This is not detrimental but if in excess, should be cleaned before shipment.

• Poor quality steel. This is detrimental for the service life of the reinforcement and the steel is rejectable. The sign of poor quality stainless steel is that the bars will start rusting and will look like measles all over the bar (not localized), which will then expand over in time and cover most of the area of the bar with dark red/brown stains. (If the stains are light yellow/brown color, it is generally run off rust from contaminated areas and will not cover large areas).

If the steel quality is in doubt, the material should be tested as outlined below.

3. If microstructural and chemical examinations find that the bars are unsuitable for the type of stainless steel being fabricated the bars shall be considered noncompliant and segregated.

4. The methods and location of segregated product shall be documented in the PQM.

ii. If the bar exhibits localized individual areas of small brown/red spots or stains that are not greater than ½ in. in maximum dimension, and do not cover more than 5% of the bar surface, or at areas of welding or mechanical grinding, this is considered cosmetic and may be ignored. If area is more than 5% the bars shall be cleaned using a stainless—steel wire brush, removing the observed spots or stains.

1. Root cause and corrected action shall be documented.

iii. If uniform areas of continuous brown/red staining are is observed and cover less than 10% of the bar surface area, this is considered cosmetic and may be ignored. If the affected area is more than 10 percent of the bar surface area, the root cause shall be determined. If the microstructure is not detrimental, the bars shall be cleaned using either pressure washing, shot blasting, or using chemical methods. If the microstructure is not acceptable, the bars shall be quarantined and rejected for disposition.

1. Root cause and corrective action shall be documented.

2. Item 2 a. Fabrication personnel shall be trained to observe the presence of any non-

uniform conforming appearance. i. Visual standards shall be developed and be included in the PQM.

b. All bars shall be subjected to visual examination by fabrication personnel prior to shipment.

i. Bars exhibiting non-uniform conforming appearance shall be brought to the attention of the QI.

ii. The QI shall conduct additional visual inspections of bars after fabrication and prior to shipment at least every 4 hours once per shift.

iii. The results of the visual inspection and bar acceptance by the QI shall be documented.

Documents

AGENDA - Concrete Reinforcing Steel Institute (CRSI) · PDF fileAGENDA 933 North Plum Grove Road | Schaumburg, IL 60173-4758 | Tel. 847.517.1200 ... Dick Birley Larry Campbell Sam