ASTM A812 HSLA Steel Grade 80 Sheet

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ASTM A812 HSLA Steel Grade 80 Sheet
Categories:	Metal; Ferrous Metal; Alloy Steel; Low Alloy Steel; ASTM Steel
Material Notes:	HSLA (High-strength low-alloy) steels are used for their higher strength and atmospheric corrosion resistance. They can be considered to be microalloyed steel and are designed for mechanical rather than compositional specs. ASTM 812 is used where its strength and durability is required such as welded layered pressure vessels.
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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 at Break	>= 689 MPa	>= 100000 psi	Varies with size and form
Tensile Strength, Yield	>= 552 MPa	>= 80000 psi	Varies with size and form
Elongation at Break	11 - 13 %	11 - 13 %	in 50 mm (2 in.); Varies with size and form
Modulus of Elasticity	205 GPa	29700 ksi	Typical of steel
Poissons Ratio	0.28	0.28	Calculated
Shear Modulus	80.0 GPa	11600 ksi	Typical of steel

Component Elements Properties	Metric	English	Comments
Carbon, C	<= 0.23 %	<= 0.23 %
Chromium, Cr	<= 0.35 %	<= 0.35 %
Iron, Fe	>= 97.2 %	>= 97.2 %	As Balance
Manganese, Mn	<= 1.5 %	<= 1.5 %
Nb + V	0.020 - 0.15 %	0.020 - 0.15 %
Niobium, Nb (Columbium, Cb)	<= 0.050 %	<= 0.050 %
Phosphorus, P	<= 0.030 %	<= 0.030 %
Silicon, Si	0.15 - 0.50 %	0.15 - 0.50 %	silicon-killed steel
Sulfur, S	<= 0.040 %	<= 0.040 %

References for this datasheet.

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MSA812B / 14065

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