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ASTM A36 vs BS 970 (Part 3) 070M55

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

ASTM A36 (ASTM A36) and BS 970 (Part 3) 070M55 (BS 970 (Part 3):1991) are both steel grades. Both fall under the Carbon Steel category. ASTM A36 is typically used for structural fabrication, bridges, buildings, machinery parts, flanges, while BS 970 (Part 3) 070M55 is commonly used for used for springs, blades, wear plates, hand tools, shafts, and cutting components.. ASTM A36 is defined under ASTM International, originating from United States, while BS 970 (Part 3) 070M55 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, ASTM A36 vs BS 970 (Part 3) 070M55 is a 84.8% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With ASTM A36:
BS 970 (Part 1) 040A10 BS 970 (Part 1) 080A20 BS 970 (Part 1) 040A04 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A32
Match Breakdown
CHEMISTRY MATCH
84.8%
MECHANICAL MATCH
No shared data
OVERALL
35%
Specifications
Property ASTM A36 BS 970 (Part 3) 070M55
Standard ASTM A36 BS 970 (Part 3):1991
Category Carbon Steel Carbon Steel
C (%) ≤0.26 0.50-0.60
Mn (%) ≤1.20 0.50-0.90
Si (%) 0.15–0.40 0.10-0.40
P (%) ≤0.040 <=0.05
S (%) ≤0.050 <=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 ASTM A36 BS 970 (Part 3) 070M55
Tensile Strength 400–550 MPa Not specified
Yield Strength 250 MPa min Not specified
Elongation ≥23% Not specified
Typical Applications
ASTM A36
Structural fabrication, bridges, buildings, machinery parts, flanges
BS 970 (Part 3) 070M55
Used for springs, blades, wear plates, hand tools, shafts, and cutting components.
Can ASTM A36 Be Substituted With BS 970 (Part 3) 070M55?
ASTM A36 and BS 970 (Part 3) 070M55 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.
Forms & Sizes Available on M-EX
ASTM A36
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 5600–6500 mm (220.47–255.91 in)
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2500–2700 mm (98.43–106.3 in)
BS 970 (Part 3) 070M55
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 4800–5800 mm (188.98–228.35 in)
On M-EX Right Now
ASTM A36
4 active listings and RFQs →
BS 970 (Part 3) 070M55
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A36 and BS 970 (Part 3) 070M55?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A36 be substituted with BS 970 (Part 3) 070M55?
ASTM A36 and BS 970 (Part 3) 070M55 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.