DDDDAEHAN STAINLESS STEEL

DAEHANSPECIAL STEEL STAINLESS PIPE STAINLESS

STAINLESS SPECIAL STEELSTAINLESS PIPE

DAEHAN SPECIAL STEEL CO.,LTD.HEAD OFFICE : 246-2, HAKJANG-DONG, SASANG-KU, BUSAN, KOREATEL_82-51-325-2225 FAX_82-51-325-2230FACTORY : 5-1, SOJU-DONG, YANGSAN--CITY, GYUNGNAM, KOREATEL_82-55-362-8081~6 FAX_82-55-362-8087, 8074Hompage_http://www.steel-stainless.co.kr

DAEHAN STAINLESS PIPE CO.,LTD.HEAD OFFICE : 885-1, DAE DAE-RI, UNGCHON-MYUN, ULJU-KUN, ULSAN, KOREATEL_82-52-222-8088 FAX_82-52-222-1500FACTORY : 233-1, SOJU-DONG, YANGSAN--CITY, GYUNGNAM, KOREATEL_82-55-386-9081~4, 9086~7 FAX_82-55-386-9088, 9071Hompage_http://www.suspipe.co.kr

DAEHAN STAINLESS CO.,LTD.HEAD OFFICE : 233-1, SOJU-DONG, YANGSAN--CITY, GYUNGNAM, KOREATEL_82-55-386-9081~4, 9086~7 FAX_82-55-386-9088, 9071FACTORY : 885-1. DAE DAE-RI, UNGCHON-MYUN, ULJU-KUN, ULSAN, KOREATEL_82-52-222-8088 FAX_82-52-222-1500Hompage_http://www.stainless.co.kr

DAEHAN STAINLESS STEEL

DAEHAN STAINLESS STEELis

a mature corporation which takes responsibility

for the human race and societies.

As an enterprise in order to provide satisfactory

services to our customers, we put our best effort to

add more prosperous aspects to people’s lives

through our products in a friendly manner.

BIGH U M A N I S M

BIGV I S I O N

DAEHAN SPECIAL STEEL

Daehan Special Steel Co.,Ltd products Cold Rolled Steel and then,

the products being used in the various use of structure pipe, Parts

of Electric

and Electronic, Water pipe, Pin tube and Auto-motor Muffler.

And also, having been starting to the domestic market and

exporting to overseas

our company continually would be developed as the leading company

to product

Cold Rolled Steel.

Our philosophy is straightforward.

It is to satisfy needs of customers with high quality products, satisfactory customer services, and

competitive prices.

This philosophy has guided Daehan Stainless Steel Group to grow from a small local company

serving mainly the Korean market to a large scale international business group which now sells

products to Asia-Pacific and North America. We also aim to provide our high quality products to

other new markets such as Europe and Africa.

Daehan Stainless Steel Group (DSSG) was founded in 1981 and now is a leading manufacturer

in the area of stainless steel and mild steel products in Korea. Our group is comprised of three

steel companies. These are Daehan Special Steel Co.Ltd., Daehan Stainless Pipe Co.Ltd and

Daehan Stainless Co.Ltd. Our group keeps a tradition of a strong union to provide quality

products to our customers. We have recently expanded production capabilities to other industries,

primarily the automotive parts industry to become more versatile as a leading steel provider.

Daehan Stainless Steel Group continues to keep a partnership with leading companies in the

world to develop more cutting-edge and high quality products to our customers. We look forward

to selling our quality products to worldwide customers whom we can offer our experiences,

world-class technology and very-best stainless products for years to come.

Thank you.

Chair-Man Kim Sung Hoon

DAEHAN STAINLESS STEEL promises you to become a worldleader in steel products that brings you the best impression always.

Greetings

Tolerance in thickness

DAEHAN SPECIAL STEEL [06 07]

3.00

2.50

2.00

1.50

1.00

0.90

0.80

0.70

0.60

0.50

0.40

0.30

0.20

0.10

0.08

0.05 1 2 3 4 5 6 7 8 9 10 20 100 150 200 250 300 400 500 600 700Width(mm)

Thickn

ess(mm)

Range of production

DAEHAN SPECIAL STEEL

1995. 01 A change of Business name as Daehan Special Steel

1998. 05 Beginning to produce Stainless 409(L) for Automobile Mufflers

1999. 03 Acquisition of a Certificate of ISO 9001 Quality Management Systems

2000. 08 Acquisition of a Certificate of nuclear energy ASME Quality

2003. 05 Foundation of the Second Factory in the So-Ju industrial area, Yang-San

2004. 07 Completion of Installment of Z-Mill(including 20 rolls) in the second factory in So-Ju industrial area.

2005. 09 Completion of Installment of 1300 Slitter Line in the second factory in So-Ju industrial area.

2006. 07 Completion of Installment of Tension Leveller Line in the second factory in So-Ju industrial area.

DAEHAN SPECIAL STEEL

Brief History

Factory

● Factory - Hakjang

DAEHAN SPECIAL STEEL [08 09]DAEHAN SPECIAL STEEL

● Tension levellerModified form through cold rolled and

heat treatment is levelled by strong

tension to give flatness.

● SL-LINECold rolling material which processd at

previous process is coated with

protective vinyl and cut in ordered

width.

● 1300SL-LINE

● Packing and Shipping

● ZM-LINEIt is specially designed rolling mill forproducts requiring high strength andprecision, such as stainless steel strip. Itis used to roll hot coil, with tension onboth reels.

● BA-LINEModified internal structure of stainlesssteel occurred during cold rolling isrecovered by heat treatment underoxygen free atmosphere.(Hydrogen,Nitrogen gas) It is divided by degreasingand heat treatment.

● Skin PassIt is process to roll heat treated stainless

strip with load and tension in order to

improve form and give gross.

Factory

● Factory - Yangsan

● ZM-LINE ● BA-LINE

● SL-LINE● Tension leveller

● SKP-LINE

● 1300SL-LINE

Process Flow Chart

DAEHAN SPECIAL STEEL DAEHAN STAINLESS GROUP [10 11]

KS D 3698 CHEMICAL COMPOSITION

MECHANICAL PROPERTY

AAUUSSTTEENNIITTEE

AAUUSSTTEENNIITTEE

FFEERRRRIITTEE

MMAARRTTEENNSSIITTEE

FFEERRRRIITTEE

HHAARRDDNNEESSSS AANNDD BBEENNDD TTEESSTT

TTEENNSSIILLEE SSTTRREENNGGTTHH,, 00..22%% YYIIEELLDD SSTTRREENNGGTTHH,, EELLOONNGGAATTIIOONN

CSP Cold ROLLED STAINLESS STEEL STRIP FOR SPRINGS

MMAARRTTEENNSSIITTEE

TYPE KSCHEMICAL COMPOSITION (%)

C Si Mn P S Cr Ni Many others

301 STS301 ≤0.15 ≤1.00 ≤2.00 ≤0.045 ≤0.030 16.0 ~ 18.0 6.0 ~ 8.0 -301L STS301L ≤0.03 ≤1.00 ≤2.00 ≤0.045 ≤0.030 16.0 ~ 18.0 6.0 ~ 8.0 N≤0.20304 STS304 ≤0.08 ≤1.00 ≤2.00 ≤0.045 ≤0.030 18.0 ~ 20.0 8.0 ~ 10.5 -304L STS304L ≤0.03 ≤1.00 ≤2.00 ≤0.045 ≤0.030 18.0 ~ 20.0 9.0 ~ 13.0 -304J1 STS304J1 ≤0.08 ≤1.70 ≤3.00 ≤0.045 ≤0.030 15.0 ~ 18.0 6.0 ~ 9.0 Cu 1.0 ~ 3.0316 STS316 ≤0.08 ≤1.00 ≤2.00 ≤0.045 ≤0.030 16.0 ~ 18.0 10.0 ~ 14.0 Mo 2.0 ~ 3.0316L STS316L ≤0.03 ≤1.00 ≤2.00 ≤0.045 ≤0.030 16.0 ~ 18.0 12.0 ~ 15.0 Mo 2.0 ~ 3.0321 STS321 ≤0.08 ≤1.00 ≤2.00 ≤0.045 ≤0.030 17.0 ~ 19.0 9.0 ~ 13.0 Ti 5×C% Min

TYPE KSCHEMICAL COMPOSITION (%)

C Si Mn P S Cr Many others

Ti 6×C%~0.75

-N 0.025 Max, Cu 0.30~0.80Ti, Nb, Zr or they of mixture 8(C%+N%)~0.80Mo 0.75~1.50, N 0.025 Max, Ti, Nb, Zr orthey of mixture 8×(C%+N%)~0.80Ti, Nb or they of mixture 8×(C%+N%)~0.80, N 0.03 MaxMo 1.75~2.50, N 0.025 Max, Ti, Nb, Zr orthey of mixture 8×(C%+N%)~0.80

409L STR409L ≤0.03 ≤1.00 ≤1.00 ≤0.04 ≤0.03 10.5 ~ 11.75410L STS410L ≤0.03 ≤1.00 ≤1.00 ≤0.04 ≤0.03 11.0 ~ 13.50 430 STS430 ≤0.12 ≤0.75 ≤1.00 ≤0.04 ≤0.03 16.0 ~ 18.0

430J1L STS430J1L ≤0.025 ≤1.00 ≤1.00 ≤0.04 ≤0.03 16.0 ~ 20.0

436L STS436L ≤0.025 ≤1.00 ≤1.00 ≤0.04 ≤0.03 16.0 ~ 19.0

439L STS439 ≤0.030 ≤1.00 ≤1.00 ≤0.04 ≤0.03 17.0 ~ 20.0

444 STS444 ≤0.025 ≤1.00 ≤1.00 ≤0.04 ≤0.03 17.0 ~ 20.0

TYPE KSCHEMICAL COMPOSITION (%)

C Si Mn P S Cr

410 STS410 ≤0.15 ≤1.00 ≤1.00 ≤0.04 ≤0.03 11.5 ~ 13.5420J1 STS420J1 0.16~0.25 ≤1.00 ≤1.00 ≤0.04 ≤0.03 12.0 ~ 14.0420J2 STS420J2 0.26~0.40 ≤1.00 ≤1.00 ≤0.04 ≤0.03 12.0 ~ 14.0

301 STS301 205Min 520Min 40Min 218Max301L STS301L 215Min 550Min 45Min 218Max304 STS304 205Min 520Min 40Min 200Max304L STS304L 175Min 480Min 40Min 200Max304J1 STS304J1 155Min 450Min 40Min 200Max316 STS316 205Min 520Min 40Min 200Max316L STS316L 175Min 480Min 40Min 200Max321 STS321 205Min 520Min 40Min 200Max

HARDNESS(HV)TYPE KS YIELD STRENGTH(N/㎟)

TENSILE STRENGTH(N/㎟)

ELONGATION(%)

409L STR409L 175Min 360Min 25Min 175Max410L STS410L 195Min 360Min 22Min 200Max430 STS430 205Min 450Min 22Min 200Max430J1L STS430J1L 205Min 390Min 22Min 200Max436L STS436L 245Min 410Min 20Min 230Max439 STS439 175Min 360Min 22Min 200Max444 STS444 245Min 410Min 20Min 230Max

HARDNESS(HV)TYPE KS YIELD STRENGTH(N/㎟)

TENSILE STRENGTH(N/㎟)

ELONGATION(%)

410 STS410 205Min 440Min 20Min 210Max420J1 STS420J1 225Min 520Min 18Min 234Max420J2 STS420J2 225Min 540Min 18Min 247Max

HARDNESS(HV)TYPE KS YIELD STRENGTH(N/㎟)

TENSILE STRENGTH(N/㎟)

ELONGATION(%)

TYPE SYMBOL

STS 301-CSP

STS 304-CSP

STS 420J2-CSP

STS 631-CSP

HARDNESS(HV)BENDABILITY

V BEND W BENDHEAT TREATMENT HARDNESS(HV)

½H 310Min Max Thickness 2times Max Thickness 2.5times - -

¾H 370Min Max Thickness 2.5times Max Thickness 3times - -

H 430Min - - - -

EH 490Min - - - -

½H 250Min Max Thickness 2times - -

¾H 310Min Max Thickness 2.5times Max Thickness 3times - -

H 370Min - - - -

0 210Max - - - -

0 200Max Max Thickness 0.5times Max Thickness 1times

½H 350Min Max Thickness 1.5times Max Thickness 2times CH 380Min

¾H 400Min - - CH 450Min

H 450Min - - CH 530Min

As cold rolled or As solution-treated As precipitation-hardened

TH 1050RH 950

345Min392Min

Max Thickness 2timesFor Under Thickness 0.5mmMax Thickness 2.5timesFor Over Thickness 0.5mm

STS 301-CSP

STS 304-CSP

STS 631-CSP

0.2%YIELD STRENGTH

(N/㎟)

0.2%YIELD STRENGTH

(N/㎟)

TENSILESTRENGTH

(N/㎟)

TENSILE STRENGTH

(N/㎟)ELONGATION

(%) HEAT TREATMENT

½H

¾H

H

EH

½H

¾H

H

0

½H

¾H

H

510Min

745Min

1030Min

1275Min

470Min

665Min

880Min

-

-

-

-

930Min

1130Min

1320Min

1570Min

780Min

930Min

1130Min

1030Max

1080Min

1180Min

1420Min

10Min

5Min

-

-

6Min

3Min

-

20Min

5Min

-

-

-

-

-

-

-

-

-

CH

CH

CH

-

-

-

-

-

-

-

880Min

1080Min

1320Min

-

-

-

-

-

-

-

1230Min

1420Min

1720Min

As cold rolled or As solution-treated As precipitation-hardened

TH1050RH950

960Min1030Min

1140Min1230Min

TEMPER SYMBOL

TEMPER SYMBOL

TYPE SYMBOL

DAEHAN STAINLESS GROUP [12 13]

DAEHAN SPECIAL STEEL

CCeellllpphhoonnee PPaarrttss

CCoonnssttrruuccttiioonn PPrroodduucctt PPaarrtt

LLiiffee PPrroodduucctt PPaarrtt

LLCCDD PPaarrttss

DAEHAN SPECIAL STEEL

Our company makes customers happy together with us“YOUR BEST LIFE”

DAEHAN SPECIAL STEEL

BIGK N O W L E D G E

DAEHANSTAINLESS PIPE

Daehan Stainless Pipe Co.,Ltd products and assembles the stainless pipe,

Pipe for press and welding, this products would be exported to not only

Handai Motor, Kia Motor Renault Samsung Motor and Ssangyong Motor

but 10 Motor Companies in overseas countries.

Our company will never satisfied with achievement of today,

going our way up to new advance with high technology

and the most quality of our products.

DAEHAN STAINLESS PIPE

Specialty company which exports a car and a muffler stainless pipe to foreign countriesUl-San factory

By keeping up the latest steel technology and utilizing quality raw materials, we doour best producing the highest quality steel products that respect our customersand societies.

1998. 06 DAEHAN STAINLESS PIPE Foundation in Busan 1989. 05 Development & Production of Stainless Steel Pipe for

Automobile Muffler 1989. 09 Cooperative supplier specified for Hyun-Dai Automobile muffler parts 1997. 08 Acquisition of Invention Patent regarding to the special Tube

Mill Processing method for Automobile Mufflers from the Patent Office(Patent No. 119790)

1998. 06 Appointment of the venture company for New Technology Development from the Small & Medium Business Administration

1999. 10 Acquisition of Invention Patent regarding to the Tube Mill Line Automated cutting method for Automobile Muffiers from the Patent Office(Patent No. 0236701)

1999. 12 Acquisition of Certificate of ISO9002 Quality Systems from KFQ 2000. 09 Acquisition of SQ Certificate SQ from Hyun-Dai and Kia

Automobile Company 2001. 05 Acquisition of Certificate of QS9000 Quality Systems from KFQ 2002. 05 Model medium and small enterprises selected by Busan Bank 2003. 05 System construction ERP2004. 04 "Foundation of the Second Factory

(sites 2000pyong, buildings: 500pyong) 2004. 05 Completion of more ERW(high frequency) Tube Mill Line

line Installment in the Second Factory 2006. 01 Established the new Factory at the So-Ju industrial area in Yan-San city2006. 04 Production & inventory Management system construction2006. 12 Acquisition of the TS16949 certificate2006. 12 Acquisition of Certificate of ISO / TS16949 Quality Systems from KFQ2006. 12 Acquisition of the INNO-BIZ certificate 2007. 08 Production equipment informationalization system construction2007. 12 Venture business authentication acquisition2008. 08 Studying systematization weak earthquake conference winning(gold statue)2009. 07 Acquisition of Certificate of ISO14001 environmental Systems from KFQ

DAEHAN STAINLESS PIPE

Brief History

Yang-San factory

Company IntroductionBeing capable of adopting many changes in the steelindustry, we promise to be a leading stainless steelprovider always.

DAEHAN STAINLESS PIPE [16 17]

DAEHAN STAINLESS PIPE DAEHAN STAINLESS PIPE [18 19]

Factory Head Office

● ERW LINE

Factory Yang-San

● PUNCHING LINE ● TIG WELDING LINE

● RESO A’SSY LINE

●CONVERTER LINE

● AUTO CUTTING LINE

●MANIFOLD LINE

DAEHAN STAINLESS PIPE [20 21]DAEHAN STAINLESS PIPE

LINE T.I.G

Process Flow ChartLINE E.R.W

Process Flow Chart

DAEHAN STAINLESS PIPE DAEHAN STAINLESS PIPE [22 23]

MMAANNIIFFOOLLDD AASSSSYY--EEXXHHAAUUSSTT

Process Flow Chart

O.DT

●MANUFACTURING RANGE

0.5 0.6 0.7 0.8 1.0 1.2 1.5 2.0 2.5 3.0

9.6

12.7

15.8

19.1

22.2

25.4

31.8

38.1

50.8

63.5

76.3

89.1

101.6

114.3

125.0

● THICKNESS TOLERANCES

Outside Diameter Size Tolerances Thickness Size Tolerances Length

Automobile muffler pipe and Hole TUBE are specifically formulated by a strict procedure and a draft. We are capable

of producing products for various international standards or any customized standards. We also produce the construction

decoration pipe.

D<50 ± 0.5 t<4 ±0.6, -0.5 ±50

D≥50 ± 0.1% t≥4 ±15%, 12.5% -0

STS 304TKA

STR 409L

STS 436L

STS 439L

DAEHAN STAINLESS PIPE [24 25]

HHoollee TTuubbee

PPllaannee TTuubbee

MMAANNIIFFOOLLDD CCAATTAALLYYTTIICC AASSSSYY--EEXXHHAAUUSSTT

AAsssseemmbbllyy

CCTTRR RREESSOO AASSSS’’YY

Products

★The above products would be made by OEM

DAEHAN STAINLESS PIPE

TTEESSTT

DAEHAN STAINLESS PIPE

Laboratory1 Micro vickers hardness terter

2 Metallurgical microscope

3 Mounting

4 Polishing

5 Unirersal test machine

6 Cutting machine

7 Three dimensional Measuring instrument

12

3

4

5

6

7

BIGN E T W O R K

DAEHAN

STAINLESS

Our stainless group always pays respect for our customers.

We are making a huge progress in establishing

aboard sales network and customer services worldwide.

You will definitely be satisfied with our first-rate

customer services and our friendly manners.

TEST

STANDARD KS ASTM

D3536 D3576 D3577 D3585 D3595 A-249 A-269 A-270 A-312

● ●

● ● ● ● ● ● ●

● ● ● ● ● ●

● ●

● ● ● ●

● ●

●

● ● ● ● ● ● ● ● ●

● ●

●

HARDNESS TEST

TENSILE TEST

FLATTENING TEST

FLARTING TEST

REVERSE FLATTENING TEST

FLANGE TEST

BENDING TEST

HYDRAULIC TEST

CORROSION TEST

SOLUBILITY TEST

DAEHAN STAINLESS DAEHAN STAINLESS [28 29]

DAEHAN STAINLESS

Brief History

Since established in 1981, Daehan Stainless Co., Ltd. has always been

thriving to produce best quality stainless dinner wares.DAEHAN STAINLESS

To meet the high demands from our customers, we put a large

amount of effort to find more elegant design and better quality products.DAEHAN STAINLESS

Company Introduction

We will always do our best to keep satisfying our customerswith our leading-edge products and with a latest design.

1981. 03 DAEHAN STAINLESS Foundation Busan1981. 05 Completion of productin lines for Stainless

Kitchen Wares & Operation Commencement1988. 03 Registration as a Korean dinnerware exporting company(appointed

as a promising small & medium enterprises for exportation)2000. 08 Appointment of the venture company for new Technology

development from the Small & Medium Business Administration2003. 10 Registration as a domestic corporation

(DAEHAN STAINLESS CO.,LTD.)2004. 1 1 The award of exporting USD 3 Million2005. 03 To Contracted muffler Tips for Lange Rover vehicle2005. 1 1 The award of exporting USD 5 Million 2006. 02 Moving to the factory in the Woongbee Industrial Area2007. 06 Acquisition of the TS16949 / ISO9001 certificate2007. 1 2 Acquisition of the Environmental Management system certificate

2008. 12 The small and medium company for technology innovation Authorized in INNO-BIZ

2009. 01 Appointed as Venture Company

2009. 02 Press Line Extension

2010. 01 Bending Line Extension

DAEHAN STAINLESS PIPE

Factory Press Line Factory Bending Line

DAEHAN STAINLESS GROUP [30 31]

Kitchenware can be customized in different designs for customers. Our very best quality steel products are gaining

tremendous popularity in the world market. Based on specific design and material, we supply world market with

various forms of products.

BBeennddiinngg TTuubbee

DAEHAN STAINLESS GROUP [32 33]

KKiittcchheennwwaarree

Products

TTaaiill TTiipp // MMuufffflleerr

Tail Tip, Muffler can be customized in different designs for customers. Our very best quality steel products are gainingtremendous popularity in the world market. They have distinctive designs and functions that are not only unique butadds style to your automobiles.

Our company creates a convenient human life with an active thought and progressive technology

DAEHANSTAINLE STEEL

SPECIALSTEEL

STAINLESSPIPE

STAINLESS

Our company make processing for pipe whichproducted in Daehan Stainless Pipe Co.,Ltd andthen, product and export Bending Tube, Tail Tip,and keeps the mutual cooperative relation fordriving the stable business to make buyers satisfiedwith our products

Our company always get ready for stablebusiness with credits between customersand our company and affiliates as acompany to provide Coil

Our company products and provides the stainlesspipe using engineering technology for TIG andERW, have our business territory expand throughvarious testing products such as stainless pressand welding pipe