ASTM A573/A573M steel plate low carbon alloy steel

ASTM A573/A573M steel plate is a specification for structural quality carbon-manganese-silicon steel plates in three tensile strength ranges intended primarily for structural applications at atmospheric temperatures for which improved toughness is required.

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Steel Properties

ASTM A573/A573M steel plate chemical composition:

Element	Grade 58	Grade 65	Grade 70
C max	0.23	0.24-0.26	0.27-0.28
Mn	0.60-0.90	0.85-1.20	0.85-1.20
P max	0.035	0.035	0.035
S max	0.04	0.04	0.04
Si	0.10-0.35	0.15-0.40	0.15-0.40

ASTM A573/A573M steel plate mechanical properties:

Mechanical properties	58	65	70
Mechanical Properties	400-490 Mpa	450-530 Mpa	485-620 Mpa
Tensile Strength, Ultimate	220 Mpa	240 Mpa	290 Mpa
Tensile Strength, Yield	21	20	18
Elongation at Break (in 200 mm)	24	23	21

Application

ASTM A573/A573M steel plate application:
ASTM A573/A573M steel plate steel shall be killed and undergo normalization, quenching and tempering. ASTM A573/A573M Grade 58 plates used for applications such as welded bridge construction, where notch toughness is important.

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