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METAL GRADES

A572-50 Grade Steel

A572 grade 50, 60, and 65 steels are high strength low alloy (HSLA) steels that are commonly used in commercial, marine, and bridge/civil construction projects. As a high-strength, low alloy (HSLA) steel with an excellent strength-to-weight ratio, A572 grade steels are highly prized for their structural efficiency and greater strength in a thinner profile than other steel grades. With its density, yield strength, and Brinell Hardness of 135, A572-50 is the preferred grade for many types of heavy-duty applications.

Yield/Tensile Strength

Metric

Imperial

Tensile Strength, Ultimate

450 MPa

65,300 psi

Tensile Strength, Yield

345 MPa

50,000 psi

Elongation at Break

(in 200 mm)

18.0%

18.0%

Elongation at Break

(in 50 mm)

21.0%

21.0%

Brinell Hardness

135

135

Rockwell Hardness

74

74

Modulus of Elasticity

200 GPa

29 ksi

Shear Modulus

80 GPa

11.6 ksi

Material Chemistry

FE

C

MN

P

SI

S

98.0%

0.23 - 0.290%

1.35%

0.040%

0.40%

0.050%