Post Stock Login Register

ASTM A572/A572M Grade 55 vs ASTM A572 Gr.65

Related Material — 62.4% match based on chemical composition and mechanical property overlap.

ASTM A572/A572M Grade 55 (ASTM A572/A572M:2018) and ASTM A572 Gr.65 (ASTM A572) are both steel grades. Both fall under the Structural Steel category. ASTM A572/A572M Grade 55 is typically used for riveted, bolted or welded structures, while ASTM A572 Gr.65 is commonly used for used for bridges, buildings, transmission towers, construction equipment, offshore structures, and structural members.. ASTM A572/A572M Grade 55 is defined under ASTM International, originating from United States, while ASTM A572 Gr.65 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A572/A572M Grade 55 vs ASTM A572 Gr.65 is a 93.6% match. As per mechanical properties, the match is 0%. Combined, this makes them a related material overall at 62.4%.

Frequently Compared With ASTM A572/A572M Grade 55:
CSA G40.21 260W CSA G40.21 350W ASTM A1008 SS Grade 50 GOST 19281 09G2S AS/NZS 3679.1 300 CSA G40.21 300W AS/NZS 3679.1 350 CSA G40.21 400A CSA G40.21 400W CSA G40.21 480W ASTM A1008 SS Grade 80
Other Structural Steel Grades to Compare With ASTM A572/A572M Grade 55:
ASTM A283C
Match Breakdown
CHEMISTRY MATCH
93.6%
MECHANICAL MATCH
0%
OVERALL
62.4%
Specifications
Property ASTM A572/A572M Grade 55 ASTM A572 Gr.65
Standard ASTM A572/A572M:2018 ASTM A572
Category Structural Steel Structural Steel
C (%) <=0.25 0.23 max
Mn (%) <=1.35 1.35 max
P (%) <=0.030 0.040 max
S (%) <=0.030 0.050 max
Si (%) <=0.40 0.40 max
V (%) Not specified 0.15 max
Nb (%) Not specified 0.05 max
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 55 ASTM A572 Gr.65
Tensile Strength >=485 MPa 550-690 MPa
Yield Strength >=380 MPa 450 MPa min
Elongation >=17% 18-21%
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
Hardness Not specified 170-220 HB
Typical Applications
ASTM A572/A572M Grade 55
Riveted, bolted or welded structures
ASTM A572 Gr.65
Used for bridges, buildings, transmission towers, construction equipment, offshore structures, and structural members.
Key Differences
Can ASTM A572/A572M Grade 55 Be Substituted With ASTM A572 Gr.65?
ASTM A572/A572M Grade 55 and ASTM A572 Gr.65 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 55
No active listings currently.
ASTM A572 Gr.65
Plate → (4 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2600–4400 mm (102.36–173.23 in)
On M-EX Right Now
ASTM A572/A572M Grade 55
0 active listings and RFQs →
ASTM A572 Gr.65
4 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A572/A572M Grade 55 and ASTM A572 Gr.65?
ASTM A572 Gr.65 specifies V, Nb which are not specified for ASTM A572/A572M Grade 55.
Can ASTM A572/A572M Grade 55 be substituted with ASTM A572 Gr.65?
ASTM A572/A572M Grade 55 and ASTM A572 Gr.65 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.