Related Material — 68.9% match
based on chemical composition and mechanical property overlap.
GB/T 3077 18CrMnNiMo (GB/T 3077:2015) and BS 970 (Part 3) 835M15 (BS 970 (Part 3):1991) are both steel grades.
Both fall under the Alloy Steel category.
GB/T 3077 18CrMnNiMo is typically used for hot-rolled or forged structural alloy steel bars, while BS 970 (Part 3) 835M15 is commonly used for bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; alloy case hardening steel (table 15).
GB/T 3077 18CrMnNiMo is defined under Guobiao Standards (GB/T), originating from China, while BS 970 (Part 3) 835M15 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, GB/T 3077 18CrMnNiMo vs BS 970 (Part 3) 835M15 is a 68.9% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a related material overall at 68.9%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
GB/T 3077 18CrMnNiMo
BS 970 (Part 3) 835M15
Tensile Strength
>=1180 MPa
Not specified
Yield Strength
>=885 MPa
Not specified
Elongation
>=10%
Not specified
Hardness
<=269 HB
Not specified
Condition
Quenched and tempered, test sample 15 mm; hardness is for bars delivered annealed or high temperature tempered
Not specified
Typical Applications
GB/T 3077 18CrMnNiMo
Hot-rolled or forged structural alloy steel bars
BS 970 (Part 3) 835M15
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; alloy case hardening steel (Table 15)
Key Differences
GB/T 3077 18CrMnNiMo specifies Cu which is not specified for BS 970 (Part 3) 835M15.
Can GB/T 3077 18CrMnNiMo Be Substituted With BS 970 (Part 3) 835M15?
GB/T 3077 18CrMnNiMo and BS 970 (Part 3) 835M15 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
What is the difference between GB/T 3077 18CrMnNiMo and BS 970 (Part 3) 835M15?
GB/T 3077 18CrMnNiMo specifies Cu which is not specified for BS 970 (Part 3) 835M15.
Can GB/T 3077 18CrMnNiMo be substituted with BS 970 (Part 3) 835M15?
GB/T 3077 18CrMnNiMo and BS 970 (Part 3) 835M15 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.