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Your present location:Home >> Products >> Alloy Tool Steel >> 4340,1.6582 >> Forged round bar 40CrNiMo/4340/1.6582
  • Product Name: Forged round bar 40CrNiMo/4340...
  • Product ID: 5101
  • Views : 836

Chemical composition%

 

标准

牌号

C

Si

Mn

P

S

Cr

Mo

V

W

其它

DIN

1.6582

0.30-0.38

≤0.40

0.50-0.80

0.025

0.035

1.30-1.70

0.15-0.30

-

-

Ni 1.30-1.70

ASTM

4340

0.38-0.43

0.15-0.35

0.60-0.80

0.035

0.040

0.70-0.90

0.20-0.30

-

-

Ni 1.65-2.00

GB

40CrNiMoA

0.37-0.44

0.17-0.37

0.50-0.80

0.025

0.025

0.60-0.90

0.15-0.25

-

-

Ni 1.25-1.65

  Specification

 

Round bar

Diameter

Length

-

Forged round bar:φ50~450

2000~6000

-

 Rolled round barφ10~80

 2000~6000

-

Flat bar

Thickness(mm)

Width(mm)

Length(mm)

Forged plate20~300

50~710

2000~6000

Rolled plate10~65

155~610

2000~6000

 

Heat treatment regime:

  Quenching 850, oil cooling; Tempering 600, wateroil cooling.

Delivery condition:

  To heat treatment ( normalizingannealing or high temperature tempering ) or non-heat treatment delivery, it shall be indicated in the contract.

 Applications

  Used for large cross section and major hardened and tempered structure with high intensity and hardness, such as: impacter transmission eccentric shaftforging crankshaft.