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GB/T 3077-2015 20CrMo / GB/T 3077 20CrMo Steel - Specifications & Listings

GB/T 3077-2015 20CrMo: 20CrMo is a low alloy carburizing steel with good hardenability and wear resistance. The grade offers high surface hardness with a strong and tough core after heat treatment.

Forms: Round Bar Category: Alloy Steel
Grade Details
GradeGB/T 3077-2015 20CrMo / GB/T 3077 20CrMo
StandardGB/T 3077-2015
Description20CrMo is a low alloy carburizing steel with good hardenability and wear resistance. The grade offers high surface hardness with a strong and tough core after heat treatment.
ApplicationsUsed for gears, shafts, axles, transmission parts, fasteners, and machine components.
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Chemical Composition (%)
C Si Mn Cr Mo P S
0.17-0.24 0.17-0.37 0.40-0.70 0.80-1.10 0.15-0.25 0.030 max 0.030 max
Mechanical Properties
tensile_strength 835-1030 MPa
yield_strength 540-835 MPa
elongation 10-15%
hardness 56-62 HRC (case)
Processing:

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GB/T 3077-2015 20CrMo / GB/T 3077 20CrMo Round Bar
4.300 MT
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GB/T 3077-2015 20CrMo / GB/T 3077 20CrMo Round Bar
2.000 MT
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