ASTM A678 Steel, grade C

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ASTM A678 Steel, grade C
Categories:	Metal; Ferrous Metal; ASTM Steel; Carbon Steel; Low Carbon Steel
Material Notes:	High-strength low-alloy carbon steel plates, quenched and tempered Copper content of 0.20% is a minimum when copper steel is specified. Maximum thickness is 50.8 mm. Plates wider than 610 mm were tested in the transverse direction and the elongation requirement was reduce by 2%. The following are suggested consumables for arc welding processes: Manual Shielded Metal-Arc (AWS A5.5) Low Hydrogen Electrodes E9015, E9016, and E9018; Submerged Arc (AWS A5.23) F9x-Exxx; Gas Metal-Arc (AWS A5.28) ER90S-x; Flux Cored-Arc (AWS A5.29) E9xT-x. Similar entries in MatWeb include: ASTM A678 grade A, grade B
Key Words:	UNS K02204
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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
Tensile Strength, Ultimate	585 - 793 MPa	84800 - 115000 psi	depends on plate width or thickness
Tensile Strength, Yield	450 MPa @Strain 0.2 %	65300 psi @Strain 0.2 %
Elongation at Break	19 %	19 %	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	0.22 %	0.22 %
Chromium, Cr	0.25 %	0.25 %
Copper, Cu	0.20 - 0.35 %	0.20 - 0.35 %	when copper steel is specified
Iron, Fe	98 %	98 %	as balance
Manganese, Mn	1.0 - 1.6 %	1.0 - 1.6 %
Molybdenum, Mo	0.080 %	0.080 %
Nickel, Ni	0.25 %	0.25 %
Phosphorus, P	0.040 %	0.040 %
Silicon, Si	0.20 - 0.50 %	0.20 - 0.50 %
Sulfur, S	0.050 %	0.050 %

References for this datasheet.

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MS678C / 13999

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