42CrMo4

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GB/T 3077 42CrMo4 alloy steel

Hardness: <=217HBW
Thermal processing Temperature1050-850
Heat Treatment: Annealed: 680-720°C
Normalized: 840-880°C
Quenched: 820-850°Cfor water, 830-860°C for oil
Tempered: 540-680°C

42CrMo4 alloy steel Chemical composition %:

C

Si

Mn

P

S

Cr

Mo

0.38- 0.45

max   0.4

0.6 - 0.9

max   0.025

max   0.035

0.9 - 1.2

0.15 - 0.3

GB/T 3077 42CrMo4 Mechanical properties:

Yield
Rp0.2 (MPa)

Tensile
Rm (MPa)

Impact
KV/Ku (J)

Elongation
A (%)

252 (≥)

877 (≥)

24

14

GB/T 3077 42CrMo4 Applications:
To manufacture high strength and conditioning section part that request more than 35CrMo, such as locomotive traction gear, supercharger gear. Connecting rod and spring clip, can also be used for oil drill pipe joints below 2000m deep.

We supply Mild Steel Plate. For Mild Steel Plate we always source from China's number one state mills for Hot Rolled Steel such as Tianjin Iron & Steel and Ma Steel. These two mills produce excellent S235JR and S355JR Hot Rolled Steel Plate.

Hot Rolled Coil

Typical size range:

1.5 – 12mm Thick

1250 – 2500mm Wide

Available specifications:

EN 10025-2004

JIS G3101-2004

ASTM A36-05

GB/T 700-2006

Steel grades:S235JR; S355JR; A36; SS400; SS490; Q235(A/B/C/D); Q345(A/B/C/D/E); Q390; Q420
Steel Mills:

Angang Steel

Baosteel

Benxi Iron & Steel

LY Steel

Masteel

Shagang Group

Shenheng Steel

WISCO

Email: [email protected]

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