Material:

  42CrMo4/SCM440/AISI 4140/DIN1.7225

 Process:

  EAF + LF + VD + Forged + Heat Treatment (optional)

 Diameter:

  20mm-500mm 

 Length:

  3000mm-12000mm   Straightness: 3mm/M max

 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 CLASS C/c

 Delivery time:

 7~10 days after advanced payment

 Payment:

 30% advance by TT; Balance against the copy of B/L 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

USA

Japanese

Gemany

British

Chinese

ASTM & AISI & SAE

JIS

EN DIN

EN BS

GB

4140

SCM440

1.7225

1.7225

42CrMo4