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4140: The steel is made of alloy steel, which complies with the standard ASTM A29 / A29M-04
This product has high strength and high hardenability. Good toughness, small deformation during quenching, creep strength and long-term strength at high temperature. Used for forgings requiring higher strength and larger quenched and tempered sections than 35CrMo steel. Such as large gears for locomotive traction, supercharger driving this wheel, rear axle, connecting rods and spring clips under heavy load, can also be used for oil deep well drill pipe joints and fishing tools below 2000m
4140 steel shaft standard
The standard is listed below
USA ASTM4140
JapanSCM440
Germany 42CRMO4 1.7725 steel bar
Machined 4140 steel shaft
Forged steel bar
42CrMo steel belongs to ultra high strength steel, with high strength and toughness, hardenability is also good.
Technical parameters
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Specifications |
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Chemical component |
C ：0.38～0.45% Si：0.17～0.37% Mn：0.50～0.80% S ：≤0.035% P ：≤0.035% Cr：0.90～1.20% Ni：≤0.30% Cu：≤0.30% Mo：0.15～0.25%[ |
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Mechanical property |
Tensile strengthσb/MPa)：≥1080
Yield strength(σs/MPa)：≥930 Elongation (δ5/%)：≥12 |
Usage
®4140 material can be used to produce shaft and steel roller, cnc machine
®Delivery time 25-35workdays
®belongs to chromoly alloy steel
Stock 4140 steel bar
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