ASTM A572/A572M Grade 60 vs ASTM A572/A572M Grade 55

Related Material — 66.4% match based on chemical composition and mechanical property overlap.

ASTM A572/A572M Grade 60 (ASTM A572/A572M:2018) and ASTM A572/A572M Grade 55 (ASTM A572/A572M:2021) are both steel grades. Both fall under the Structural Steel category. ASTM A572/A572M Grade 60 is typically used for riveted or bolted bridge construction, or riveted, bolted or welded construction in other applications, while ASTM A572/A572M Grade 55 is commonly used for riveted, bolted or welded structures. ASTM A572/A572M Grade 60 is defined under ASTM International, originating from United States, while ASTM A572/A572M Grade 55 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A572/A572M Grade 60 vs ASTM A572/A572M Grade 55 is a 99.7% match. As per mechanical properties, the match is 0%. Combined, this makes them a related material overall at 66.4%.

Frequently Compared With ASTM A572/A572M Grade 60:
AS/NZS 3679.1 300 CSA G40.21 300W GOST 19281 09G2S CSA G40.21 260W AS/NZS 3679.1 350 CSA G40.21 350W CSA G40.21 400W CSA G40.21 480W ASTM A1008 SS Grade 50 ASTM A1008 SS Grade 80 ASTM A283C
Other Structural Steel Grades to Compare With ASTM A572/A572M Grade 60:
CSA G40.21 400A
Match Breakdown
CHEMISTRY MATCH
99.7%
MECHANICAL MATCH
0%
OVERALL
66.4%
Specifications
Property ASTM A572/A572M Grade 60 ASTM A572/A572M Grade 55
Standard ASTM A572/A572M:2018 ASTM A572/A572M:2021
Category Structural Steel Structural Steel
C (%) <=0.26 <=0.25
Mn (%) <=1.35 <=1.35
P (%) <=0.030 <=0.030
S (%) <=0.030 <=0.030
Si (%) <=0.40 <=0.40
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 60 ASTM A572/A572M Grade 55
Tensile Strength >=520 MPa >=485 MPa
Yield Strength >=415 MPa >=380 MPa
Elongation >=16% >=17%
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 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
Typical Applications
ASTM A572/A572M Grade 60
Riveted or bolted bridge construction, or riveted, bolted or welded construction in other applications
ASTM A572/A572M Grade 55
Riveted, bolted or welded structures
Can ASTM A572/A572M Grade 60 Be Substituted With ASTM A572/A572M Grade 55?
ASTM A572/A572M Grade 60 and ASTM A572/A572M Grade 55 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.
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Frequently Asked Questions
What is the difference between ASTM A572/A572M Grade 60 and ASTM A572/A572M Grade 55?
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 60 be substituted with ASTM A572/A572M Grade 55?
ASTM A572/A572M Grade 60 and ASTM A572/A572M Grade 55 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.