Related Material — 65% match
based on chemical composition and mechanical property overlap.
GOST 380 St3ps (GOST 380-2005) and BS 970 (Part 1) 655H13 (BS 970 (Part 1):1991) are both steel grades.
GOST 380 St3ps is classified under Structural Steel, while BS 970 (Part 1) 655H13 is classified under Alloy Steel — a different category, which is worth noting alongside the chemistry match below.
GOST 380 St3ps is typically used for structural steelwork, welded assemblies, construction materials, plates, bars, channels, while BS 970 (Part 1) 655H13 is commonly used for case hardening steel (section four).
BS 970 (Part 1) 655H13 is defined under British Standards (BS) (United Kingdom).
As per chemical composition, GOST 380 St3ps vs BS 970 (Part 1) 655H13 is a 65.1% 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 65%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
GOST 380 St3ps
BS 970 (Part 1) 655H13
Tensile Strength
370-490 MPa
Not specified
Yield Strength
>=235 MPa
Not specified
Elongation
>=22%
Not specified
Hardness
<=170 HB
Not specified
Typical Applications
GOST 380 St3ps
structural steelwork, welded assemblies, construction materials, plates, bars, channels
BS 970 (Part 1) 655H13
Case hardening steel (section four)
Key Differences
Different category: GOST 380 St3ps is Structural Steel, BS 970 (Part 1) 655H13 is Alloy Steel.
GOST 380 St3ps specifies Si, S, P, Cu which are not specified for BS 970 (Part 1) 655H13.
Can GOST 380 St3ps Be Substituted With BS 970 (Part 1) 655H13?
GOST 380 St3ps and BS 970 (Part 1) 655H13 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 GOST 380 St3ps and BS 970 (Part 1) 655H13?
Different category: GOST 380 St3ps is Structural Steel, BS 970 (Part 1) 655H13 is Alloy Steel. GOST 380 St3ps specifies Si, S, P, Cu which are not specified for BS 970 (Part 1) 655H13.
Can GOST 380 St3ps be substituted with BS 970 (Part 1) 655H13?
GOST 380 St3ps and BS 970 (Part 1) 655H13 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.