ASTM A572/A572M Grade 65 vs ASTM A1008 SS Grade 50

Related Material — 63.5% match based on chemical composition and mechanical property overlap.

ASTM A572/A572M Grade 65 (ASTM A572/A572M:2021) and ASTM A1008 SS Grade 50 (ASTM A1008) are both steel grades. Both fall under the Structural Steel category. ASTM A572/A572M Grade 65 is typically used for riveted or bolted bridge construction, or riveted, bolted or welded construction in other applications, while ASTM A1008 SS Grade 50 is commonly used for cold-rolled high-strength structural steel sheet; automotive structural components, cold-formed parts requiring moderate strength. ASTM A572/A572M Grade 65 is defined under ASTM International, originating from United States, while ASTM A1008 SS Grade 50 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A572/A572M Grade 65 vs ASTM A1008 SS Grade 50 is a 95.3% match. As per mechanical properties, the match is 0%. Combined, this makes them a related material overall at 63.5%.

Frequently Compared With ASTM A572/A572M Grade 65:
AS/NZS 3679.1 300 CSA G40.21 400W ASTM A572 Gr.65 GOST 19281 09G2S CSA G40.21 260W CSA G40.21 300W AS/NZS 3679.1 350 CSA G40.21 350W CSA G40.21 400A CSA G40.21 480W ASTM A1008 SS Grade 80 ASTM A283C
Match Breakdown
CHEMISTRY MATCH
95.3%
MECHANICAL MATCH
0%
OVERALL
63.5%
Specifications
Property ASTM A572/A572M Grade 65 ASTM A1008 SS Grade 50
Standard ASTM A572/A572M:2021 ASTM A1008
Category Structural Steel Structural Steel
C (%) <=0.23 <=0.20
Mn (%) <=1.65 <=1.35
P (%) <=0.030 <=0.040
S (%) <=0.030 <=0.040
Si (%) <=0.40 <=0.50
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ASTM A572/A572M Grade 65 ASTM A1008 SS Grade 50
Tensile Strength >=550 MPa 380 MPa min
Yield Strength >=450 MPa 340 MPa min
Elongation >=15% 14% min
Condition Tension test per Table 4; one set of minimum values for all product thicknesses; Elongation is in 200 mm gauge length, 50 mm values in the tensile block Not specified
Typical Applications
ASTM A572/A572M Grade 65
Riveted or bolted bridge construction, or riveted, bolted or welded construction in other applications
ASTM A1008 SS Grade 50
Cold-rolled high-strength structural steel sheet; automotive structural components, cold-formed parts requiring moderate strength
Can ASTM A572/A572M Grade 65 Be Substituted With ASTM A1008 SS Grade 50?
ASTM A572/A572M Grade 65 and ASTM A1008 SS 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 A572/A572M Grade 65
No active listings currently.
ASTM A1008 SS Grade 50
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2700–3400 mm (106.3–133.86 in)
On M-EX Right Now
ASTM A572/A572M Grade 65
0 active listings and RFQs →
ASTM A1008 SS Grade 50
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A572/A572M Grade 65 and ASTM A1008 SS Grade 50?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A572/A572M Grade 65 be substituted with ASTM A1008 SS Grade 50?
ASTM A572/A572M Grade 65 and ASTM A1008 SS 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.