HT

12 G

B 60

20

al

d

HT

12 G

B 6

060

new

sand

pape

r.com

SPECIALTY GRAPHITE MATERIALSFOR CONTINUOUS CASTING

CARBONE LORRAINEAn Expert at your Service.

ISO 14001ISO 9001: 2000

06126-3 volets HT12GB6060 6/09/07 9:30 Page 3

Cooling system

Graphite die

Solidification front

Horizontal continuous caster

is a metallurgical process which allows continuous control of the transformation from a liquid metal to a solid state in order to directly obtain semi-finished products like: wires, rods, tubes, strips, custom sections.

The graphite die used in this transformation, permits:

the shaping of the metal, the heat extraction necessary to transform the metal

from liquid to solid state.

Continuous casting

2

06126-3 volets HT12GB6060 6/09/07 9:30 Page 4

In addition to the graphite grade chosen, the castingresults are also a function of die design, quality ofmachining, and the specific characteristics of thecasting installation.Our grades have been developed in conjunctionwith foundrymen to obtain the proper blend of physical characteristics for continuous casting. We can provide technical services to assist you in finding a suitable graphite for your application.However, in many cases optimal grade selectioncan be made only through actual trials.

The following application chart should be used onlyas an indicative guide for grade selection.

depends mainly on the composition of the alloy to be cast: grey iron requires a graphite resistantto wear abrasion; brass, a graphite relatively densebut with enough open porosity to allow zinc toevaporate in the area of the solidification front; non-ferrous alloys containing elements like nickel orcobalt need high density graphite to reduce chemical attack of the graphite die...

The other parameters which determine the choice of the grade are:

the size and shape of the cast section, the speed of casting, the total amount of alloy to cast, casting orientation (i.e, vertical or horizontal).

RECOMMENDED GRADES

TYPThe selection of the best graphite grade for your application

RECOMMENDED GRADES

Cast alloy Wire casting Billet casting Strip casting Tube casting

Grey and ductile iron - 2020 - 2020

Brass (Cu-Zn) 2204, 2191 2191 2204, 2220 2191, 2220

Bronze 2191, 2204 2191 2204, 2230 2191, 2230 (Core)

Phosphorus bronze 2220, 2204 2191, 2220 2220, 2204 2191, 2220

Maillechort (Cu-Zn-Ni) Nickel-silver 2230, 2204 - 2230, 2204, 2333 2204, 2191

Nickel-copper 2230, 2204 - 2230, 2204 -

Red copper, Phosphorus deoxidized copper 2191 2191 - -

- Vertical casting 2220 -Aluminium 2191

Horizontal casting2191

Silver, Gold 2191 - 2191 2191

Precious metal alloys 2191, 2204 - 2191, 2204 2191, 2204

3

06126-3 volets HT12GB6060 6/09/07 9:30 Page 5

Data herein contained are provided for general information purpose only and are not binding. CARBONE LORRAINE shall have no liability whatsoeverwith respect to information contained herein. Duplication, reproduction or translation of any information contained herein, in whole or in part, isstrictly prohibited without prior written consent of CARBONE LORRAINE.

TYPICAL CHARACTERIST ICSTYPICAL CHARACTERIST ICS

Unit StandardASTM 2191 2020 2220 2204 2230

1.74

12

80 (L)

9

95 (L)

8

85 (H)

8

80 (L)

4

85 (H)

1.77 1.83 1.85 1.90

%

Rockwell C748

10.1 9.2 11.4 12.4 12.6

44 45 57 45 57

6,400 6,500 7,500 6,500 7,500

97 99 126 99 126

14,100 14,300 18,300 14,300 18,300

4.2 4.5 5.4 4.5 5.4

2.3 2.5 3.0 2.5 3.0

1,070 1,550 1,125 1,090 1,125

0.00042 0.00061 0.00045 0.00043 0.00045

116 81 112 119 112

67 47 65 69 65

15 15 13 13 13

0.0006 0.0006 0.0005 0.0005 0.0005

542 x 542 x 1,830 530 x 635 x 1,830 308 x 620 x 1,830 311 x 654 x 915 152 x 620 x 915

C559

C830

C695

C695

E228

C611

C767

-

-

C651

g/cm3

GPa

MPa

psi

MPa

psi

x 10-6

/C

/F

cm

in

W/mC

BTU-Ft/Ft2HrF

m

in

mm

in 21.3 x 21.3 x 72 20 x 24 x 72 12 x 24 x 72 12 x 25 x 36 6 x 24 x 36

Property

Density

Porosity

Hardness

Modulus

of elasticity

Flexural

strength

Compressive

strength

Coefcient of

thermal

expansion

Electrical

resistivity

Thermal

conductivity

Average

grain size

Standard

block size

4

06126-3 volets HT12GB6060 6/09/07 9:30 Page 6

Graphite is well adapted for use as continuous castingdies because of its unique physical characteristics:

Non-wetting to most metals due to its low reactivity

and low porosity. These characteristics can be tailored

to specific casting requirements through selective

processing.

High thermal conductivity.

Easy to machine and to polish.

Cum

ulat

ive

Pore

Vol

ume

(10-

2cm

3 /g)

Pore Radius (.m)0,1 1 10

0

5

10

15

2191

2204 2220

Typical values of thermal conductivityMaterial W/m. K

0 100 200 300 400 500

418 Silver

385 Copper

163 Tungsten

123 Molybdenum

100 Graphite for continuous casting

90 Nickel

75 Iron

42 Carbon

0.7 Brick

0.3 Lampblack

0.1 Firebrick

Thermal conductivity

W/m. K

110

80

0

2020

500 1,000 1,500 C

Melting and boiling points

Boiling point C

Melting point C

0 1,000 2,000 3,000 4,000 5,000 6,000

5,9003,370

3,650 Graphite3,700

2,620

2,8561,062

2,7401,535

2,6001,083

2,550 2,300

2,340232

2,300660

2,190960,5

Tungsten

Molybdenum

Gold

2,9001,455 Nickel

Iron

Copper

Boron2,355

1,410 Silicium

Tin

Aluminium

Silver

420 Zinc

2020

2230

22202204

2191

2230

Capable of withstanding molten metal temperatures.Graphite sublimates at 3,650C and atmosphericpressure.

Graphite manufacturing

907

app

5

06126-3 volets HT12GB6060 6/09/07 9:30 Page 1

HT

12 G

B 60

20

Carbone Lorraine harnesses prime expertise in industrial

applications to deliver innovative solutions involving graphite,

other high-performance materials, and key components for

electric motors and electronic equipment for many

high-technology markets.

As world number-one in its main business specialities,

Carbone Lorraine fields an extensive industrial and commercial

network covering around 40 countries, working hand in hand

with its clients to pursue permanent innovation through a

broad range of top-class products and services.

PARTNER IN INNOVATION

CUSTOMER-ORIENTED INTERNATIONAL NETWORK

HT

12 G

B 6

060

new

sand

pape

r.com

Main production sites

Industrial or commercial branch

www.carbonelorraine.com

CARBONE LORRAINE COMPOSANTS41 rue Jean-Jaurs - BP 148F-92231 GENNEVILLIERS - FRANCETel. : +33 (0)1 41 85 43 50Fax : +33 (0)1 41 85 45 11

Contact for EUROPE

ht.graphite@carbonelorraine.com

Contact for U.S.A.CARBONE OF AMERICA IND. CORP.Graphite Materials Division215 Stackpole StreetSt. Marys, PA 15857-1488Tel. : +1 814 781-1234Fax : +1 814 781-8570

IS

06126-3 volets HT12GB6060 6/09/07 9:30 Page 2