ASTM A572 Steel, grade 42

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ASTM A572 Steel, grade 42
Categories:	Metal; Ferrous Metal; ASTM Steel; Carbon Steel; Low Carbon Steel
Material Notes:	High-strength low-alloy steel, structural quality The following are suggested consumables for arc welding processes: For grades 42 and 50 - Manual Shielded Metal-Arc (AWS A5.5) Low Hydrogen Electrodes E7015, E7016, E7018, and E7028; Submerged Arc (AWS A5.23) F7x-Exxx; Gas Metal-Arc (AWS A5.28) ER70S-x; Flux Cored-Arc (AWS A5.29) E7xT-x except -2, -3, -10, or -GS.
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Physical Properties	Metric	English	Comments

Density	7.80 g/cc	0.282 lb/in³	Typical of ASTM Steel

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	123	123	based on conversion from tensile strength
Hardness, Rockwell B	69	69	based on conversion from tensile strength
Tensile Strength, Ultimate	415 MPa	60200 psi
Tensile Strength, Yield	290 MPa	42100 psi
Elongation at Break	20 %	20 %	In 200 mm
	24 %	24 %	In 50 mm
Bulk Modulus	160 GPa	23200 ksi	Typical for steel.
Shear Modulus	80.0 GPa	11600 ksi	Typical for steel.

Component Elements Properties	Metric	English	Comments
Carbon, C	0.21 %	0.21 %
Iron, Fe	98 %	98 %
Manganese, Mn	1.35 %	1.35 %
Phosphorus, P	<= 0.040 %	<= 0.040 %
Silicon, Si	<= 0.40 %	<= 0.40 %	varies with plate thickness
Sulfur, S	<= 0.050 %	<= 0.050 %

References for this datasheet.

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MSA572 / 14023

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