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GOST 1050 40 vs BS 970 (Part 3) 080M40

Strong Match — 92.2% match based on chemical composition and mechanical property overlap.

GOST 1050 40 (GOST 1050-2013) and BS 970 (Part 3) 080M40 (BS 970 (Part 3):1991) are both steel grades. Both fall under the Carbon Steel category. GOST 1050 40 is typically used for used for shafts, gears, axles, bolts, and machine structural parts., while BS 970 (Part 3) 080M40 is commonly used for shafts, gears, axles, general engineering. BS 970 (Part 3) 080M40 is defined under British Standards (BS) (United Kingdom).

As per chemical composition, GOST 1050 40 vs BS 970 (Part 3) 080M40 is a 92.2% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a strong match overall at 92.2%.

Frequently Compared With GOST 1050 40:
BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A10 BS 970 (Part 1) 040A12 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A40 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10
Match Breakdown
CHEMISTRY MATCH
92.2%
MECHANICAL MATCH
No shared data
OVERALL
92.2%
Specifications
Property GOST 1050 40 BS 970 (Part 3) 080M40
Standard GOST 1050-2013 BS 970 (Part 3):1991
Category Carbon Steel Carbon Steel
C (%) 0.37-0.44 0.36-0.44
Mn (%) 0.5-0.8 0.60-1.00
Si (%) 0.17-0.37 0.10-0.40
S (%) 0.04 max <=0.05
P (%) 0.035 max <=0.05
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property GOST 1050 40 BS 970 (Part 3) 080M40
Tensile Strength 570-740 MPa Not specified
Yield Strength 340 MPa min Not specified
Elongation 19% min Not specified
Hardness 170-220 HB Not specified
Typical Applications
GOST 1050 40
Used for shafts, gears, axles, bolts, and machine structural parts.
BS 970 (Part 3) 080M40
Shafts, gears, axles, general engineering
Can GOST 1050 40 Be Substituted With BS 970 (Part 3) 080M40?
GOST 1050 40 and BS 970 (Part 3) 080M40 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 080M40 is often considered as a substitute for GOST 1050 40 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
Forms & Sizes Available on M-EX
GOST 1050 40
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 6200–7000 mm (244.09–275.59 in)
BS 970 (Part 3) 080M40
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 6000–6900 mm (236.22–271.65 in)
On M-EX Right Now
GOST 1050 40
2 active listings and RFQs →
BS 970 (Part 3) 080M40
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between GOST 1050 40 and BS 970 (Part 3) 080M40?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can GOST 1050 40 be substituted with BS 970 (Part 3) 080M40?
GOST 1050 40 and BS 970 (Part 3) 080M40 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 080M40 is often considered as a substitute for GOST 1050 40 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.