Material SCM440 Steel Heat Treating Material SCM440 Steel Thermal

Material SCM440 Steel Product Information
1.Describe:
4140 steel is a kind of alloy structural steel. It belongs to the steel with
the American grade equivalent to the 42CrMo grade in my country. This kind of
steel belongs to the medium hardenability steel with high yield, good
comprehensive mechanical properties, good strength, good toughness and
hardenability. High advantages, its carbon content is 0.33%-0.48%, its tensile
strength is 795 MPa, and its hardness is 241HB. After heat treatment at 4140,
it has good strength and good comprehensive mechanical properties, and it has
good manufacturability. Fasteners, salvage tools, etc.
2.Corresponding steel number:
China GB steel number 42CrMo, Germany DIN steel number 42CrMo4, Germany DIN
material number 1.7225, French NF standard 40CD4/42CD4, Japanese JIS standard
SCM440, British BS standard 708M40/708A42/709M40, American AISI/ASTM 4140,
American SAE 4140, American UNS Standard G41400
(4140 alloy structural steel, executive standard: ASTM A29/A29M-04)
3.Application:
It is used to manufacture forgings that require higher strength and larger
quenched and tempered section than 35CrMo steel, such as large gears for
locomotive traction, supercharger transmission gears, rear axles, connecting
rods and spring clips that are heavily loaded, and can also be used for Drill
pipe joints and fishing tools for oil wells below 2000m, and can be used for
molds of bending machines, etc.
4.Feature:
This steel has good strength, good toughness, high hardenability, good
workability, small processing deformation, quite good fatigue resistance, small
deformation during quenching, and high creep strength and durable strength at
high temperature.
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We provide high-quality steel,ex-factory price, support customization, strong
company and factory strength; welcome your inquiry and order;please contact us
for quotes.
songshunsteel41404340

Minimum Order: 2 tons

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