carbon steel flat bars 4140 Chinese export import plastic mould tool steel

Material:

4140

 Process:

  EAF + LF + VD + HOT ROLLED + Heat Treatment (optional)

Dia/Thickness:

20mm-500m/80-600mm, or customer’s request

Width:

  200-2300mm, or customer’s request

 Length:

  2000mm-5800mm , or customer’s request

 Heat treatment:

  Normalized / Annealed / Quenched / tempered

 Delivery condition:

 Hot forged +Rough machined (black surface after Q/T)+ Turned (optional)

 Technical Data:

 According to the customer's requirement of Chemical Composition, Physical  Properties and Mechanical Testing 

 Test:

 Ultrasonic test according to SEP 1921-84 GR3 C/C

 Delivery time:

7-15 days after advanced payment

 Payment:

 30% advance by TT; Balance pay before the shipment against shipping documents  or irrevocable LC at sight

Grade

C

Si

Mn

P

S

Cr

Mo

42CrMo4

0.38-0.45

0.17-0.37

0.40-0.70

≤0.035

≤0.035

0.90-1.20

0.15-0.25

1.7225

0.38-0.45

≤0.40

0.60-0.90

≤0.025

≤0.035

0.90-1.20

0.15-0.30

4140

0.38-0.43

0.15-0.35

0.75-1.00

≤0.035

≤0.040

0.80-1.10

0.15-0.25

tool steel

GB   (Chinese)

ASTM  (American)

JIS    (Japanese)

DIN    (German)

Cold work

Cr12

D3

SKD1

Cr12MoV

Cr12Mo1V1

D2

SKD11

1.2379 

Hot work

5CrNiMo

L6

SKT4

55NiCrMo;V6

5CrNiMoV

4Cr3Mo3SiV

H10A

SKD7

1.2885 

Plastic tool steel

40Cr

5140

SCr440

1.7035

SWP20

P20

SCM4

1.2311

SW718H

P20+Ni

1.2738

3-4Cr13

420

1.2083

3-4Cr16Mo

420

SUS420

1.2316

10Ni3MoAlCu

P21

NAK80

Carbon steel

48C

1045-1055

S45C-S55C

1.1730