Dongguan Circle Four Metal Materials Co., Ltd,
PRODUCTS
Plastic tool steel
Cold Work Steel
Hot Work Steel
Polished steel
Carbon steel
 
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Plastic tool steel

For large, precise and high polishing plastic mold, such as car accessories, high quality household appliance and electronic products. It can be put into direct use after processing, no further heat treatment is needed. It has high corrosion and wearing resistance as well as polishing abilities.

Cold work steel

For cold work mold with high precision and long life requirement, such as punching mold, cold extruding mold and precise measuring tool. It has high harden ability and high oxidation resistance.

Hot work steel

ESR steel, high degree of purity, homogeneous microstructure, better heat resistance and toughness, good resistance to high temperature metal abrasion, high tempering resistance, steady hardness for work under 600 degree. It has low dimensional distortion and high thermal fatigue resistance.

Carbon steel

High quality carbon constructional steel, for plastic mold, cold work mold and mechanical parts

Steel grades available:

Tool Steel

GB

(Chinese)

DIN

(German)

ASTM

(American)

JIS

(Japanese)

SS

(Sweden)

Plastic 

tool steel

3Cr2Mo

1.2311

P20

-

618

3Cr2NiMo

1.2738

P20+Ni

-

718

42CrMo

1.7225

4140

SCM440

-

4Cr13

1.2083

420

-

S136

3Cr17Mo

1.2316

-

-

-

10Ni3MnCuAl

1.2735

P21

NAK80

-

Carbon steel

45#

1.1191

1045

S45C

-

Cold work steel

Cr12

1.2080

D3

SKD1

-

Cr12MoV

1.2601

D5

-

-

Cr12Mo1V1

1.2379

D2

SKD11

-

Hot work steel

5CrNiMo

1.2714

L6

SKT4

-

4Cr5MoSiV1

1.2344

H13

SKD61

8407

4Cr5MoSiV

1.2343

H11

SKD6

-

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