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Alloy steel 4140
4.9 (55 Reviews) 1940 orders
Material type: Metal, High hardness, High strength
Alloy steel 4140 is a chromium-, molybdenum-, and manganese-containing low alloy steel. It has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength. Moreover it has good atmospheric corrosion resistance. It is widely used in many industries due to its excellent properties.
Process compatibility
Material Color
Silver gray
Material advantages
Alloy steel 4140 has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength.
Material shortcomings
-
Recommended description
It has good machinability in the annealed condition.
Properties
Name
Tensile strength 1130MPa
Yield strength 715MPa
Density 7.85 g/cc
Hardness 335HRB
Elongation at Break 21.5%
Modulus of elasticity 210GPa
Shear modulus 80GPa
Thermal expansion coefficent 11.5 - 13.5 10^-6 ºC
Melting point 1416°C
Common applications
• Heavy duty shafts
• Connecting rods
• High tensile bolts
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