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Home>Product Categories>40CrMnMo hot rolled alloy structural steel round bar
40CrMnMo hot rolled alloy structural steel round bar

40CrMnMo hot rolled alloy structural steel round bar

40CrMnMo hot rolled steel round bars possess good comprehensive mechanical properties, hardenability, and high tempering stability after quenching and tempering. They are primarily used in the quenched and tempered state for manufacturing heavy-duty, large cross-section components such as gear shafts, gears, rear axle axles, and steam turbine parts. This material can also serve as an alternative to 40CrNiMo.

ASTM: JIS: GB: 40CrMnMo
MaterialGB/T 3077
ThicknessN/A (Round Bar)
WidthN/A (Round Bar)
LengthCustomizable
MOQ1 Ton
Lead Time7-15 days
PortShanghai / Tianjin
Response within 24 hours
In Stock — Ready to Ship
Material GradeGB/T 3077StandardGB/T 3077
Thickness RangeN/A (Round Bar)Width RangeN/A (Round Bar)
Length RangeCustomizableMOQ1 Ton
Lead Time7-15 daysPort of ShipmentShanghai / Tianjin
C0.37-0.45Si0.17-0.37
Mn0.90-1.20Cr0.90-1.20
Mo0.20-0.30Tensile Strength (Rm)834 MPa
Yield Strength (Rp0.2)823 MPaImpact Energy (KV)41 J
Elongation (A)33%Hardness (HB)≤233 HB

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