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ASTM A1008 SS Grade 80 vs ASTM A572 Grade 50

Related Material — 61.8% match based on chemical composition and mechanical property overlap.

ASTM A1008 SS Grade 80 (ASTM A1008) and ASTM A572 Grade 50 (ASTM A572) are both steel grades. Both fall under the Structural Steel category. ASTM A1008 SS Grade 80 is typically used for cold-rolled high-strength structural steel sheet, higher strength grade; automotive structural/reinforcement components, cold-formed high-strength parts, while ASTM A572 Grade 50 is commonly used for high-strength low-alloy structural steel; buildings, bridges, transmission towers, construction equipment, general structural fabrication. ASTM A1008 SS Grade 80 is defined under ASTM International, originating from United States, while ASTM A572 Grade 50 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A1008 SS Grade 80 vs ASTM A572 Grade 50 is a 92.8% match. As per mechanical properties, the match is 0%. Combined, this makes them a related material overall at 61.8%.

Frequently Compared With ASTM A1008 SS Grade 80:
CSA G40.21 400W ASTM A1008 SS Grade 50 AS/NZS 3679.1 300 CSA G40.21 480W AS/NZS 1595 C450 CSA G40.21 400A GOST 19281 09G2S CSA G40.21 260W ASTM A283C AS/NZS 3679.1 350 CSA G40.21 350W CSA G40.21 300W
Match Breakdown
CHEMISTRY MATCH
92.8%
MECHANICAL MATCH
0%
OVERALL
61.8%
Specifications
Property ASTM A1008 SS Grade 80 ASTM A572 Grade 50
Standard ASTM A1008 ASTM A572
Category Structural Steel Structural Steel
C (%) <=0.25 <=0.23
Mn (%) <=1.65 <=1.35
Si (%) <=0.50 <=0.40
P (%) <=0.040 <=0.040
S (%) <=0.040 <=0.050
Nb (%) Not specified <=0.05
V (%) Not specified <=0.15
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ASTM A1008 SS Grade 80 ASTM A572 Grade 50
Tensile Strength 570 MPa min 450 MPa min
Yield Strength 550 MPa min 345 MPa min
Elongation 10% min 18% min
Hardness Not specified 137-187 HB
Typical Applications
ASTM A1008 SS Grade 80
Cold-rolled high-strength structural steel sheet, higher strength grade; automotive structural/reinforcement components, cold-formed high-strength parts
ASTM A572 Grade 50
High-strength low-alloy structural steel; buildings, bridges, transmission towers, construction equipment, general structural fabrication
Key Differences
Can ASTM A1008 SS Grade 80 Be Substituted With ASTM A572 Grade 50?
ASTM A1008 SS Grade 80 and ASTM A572 Grade 50 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 A1008 SS Grade 80
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2500–3700 mm (98.43–145.67 in)
ASTM A572 Grade 50
Plate → (4 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2800–4600 mm (110.24–181.1 in)
On M-EX Right Now
ASTM A1008 SS Grade 80
2 active listings and RFQs →
ASTM A572 Grade 50
4 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A1008 SS Grade 80 and ASTM A572 Grade 50?
ASTM A572 Grade 50 specifies Nb, V which are not specified for ASTM A1008 SS Grade 80.
Can ASTM A1008 SS Grade 80 be substituted with ASTM A572 Grade 50?
ASTM A1008 SS Grade 80 and ASTM A572 Grade 50 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.