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KS D3867 SCM415 vs GB/T 3077 20CrMnMo

Close Alternative — 81.4% match based on chemical composition and mechanical property overlap.

KS D3867 SCM415 (KS D 3867:2025) and GB/T 3077 20CrMnMo (GB/T 3077:2015) are both steel grades. Both fall under the Alloy Steel category. KS D3867 SCM415 is typically used for gears, shafts, camshafts, piston pins, precision machine components requiring hard surface and tough core., while GB/T 3077 20CrMnMo is commonly used for hot-rolled or forged structural alloy steel bars. KS D3867 SCM415 is defined under Korean Industrial Standards (KS), originating from South Korea, while GB/T 3077 20CrMnMo is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, KS D3867 SCM415 vs GB/T 3077 20CrMnMo is a 81.4% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 81.4%.

Frequently Compared With KS D3867 SCM415:
UNI 11234 100Cr6 NF A35-565 100C6 IS 1570 (Part 7) 12Cr4Mo5H GOST 4543 12HN3A IS 11169 (Part 1) 12Cr4Mo2 GB/T 3077 12Cr2Ni4A IS 1570 (Part 7) 12Cr9Mo10H IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Mo6H IS 1570 (Part 4) 07Cr4Mo6
Match Breakdown
CHEMISTRY MATCH
81.4%
MECHANICAL MATCH
No shared data
OVERALL
81.4%
Specifications
Property KS D3867 SCM415 GB/T 3077 20CrMnMo
Standard KS D 3867:2025 GB/T 3077:2015
Category Alloy Steel Alloy Steel
C (%) 0.17-0.23 0.17-0.23
Mn (%) 0.6-1.2 0.90-1.20
Si (%) 0.1-0.35 0.17-0.37
P (%) max 0.03 <=0.030
S (%) max 0.03 <=0.030
Cr (%) 0.15-0.35 1.10-1.40
Mo (%) 0.15-0.3 0.20-0.30
Cu (%) Not specified <=0.30
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property KS D3867 SCM415 GB/T 3077 20CrMnMo
Tensile Strength Not specified >=1180 MPa
Yield Strength Not specified >=885 MPa
Elongation Not specified >=10%
Hardness Not specified <=217 HB
Condition Not specified Quenched and tempered, test sample 15 mm; hardness is for bars delivered annealed or high temperature tempered
Typical Applications
KS D3867 SCM415
Gears, shafts, camshafts, piston pins, precision machine components requiring hard surface and tough core.
GB/T 3077 20CrMnMo
Hot-rolled or forged structural alloy steel bars
Key Differences
Can KS D3867 SCM415 Be Substituted With GB/T 3077 20CrMnMo?
KS D3867 SCM415 and GB/T 3077 20CrMnMo are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
Forms & Sizes Available on M-EX
KS D3867 SCM415
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5200–5700 mm (204.72–224.41 in)
GB/T 3077 20CrMnMo
No active listings currently.
On M-EX Right Now
KS D3867 SCM415
2 active listings and RFQs →
GB/T 3077 20CrMnMo
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Frequently Asked Questions
What is the difference between KS D3867 SCM415 and GB/T 3077 20CrMnMo?
GB/T 3077 20CrMnMo specifies Cu which is not specified for KS D3867 SCM415.
Can KS D3867 SCM415 be substituted with GB/T 3077 20CrMnMo?
KS D3867 SCM415 and GB/T 3077 20CrMnMo are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.