ASTM A808 HSLA Steel, Thickness

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ASTM A808 HSLA Steel, Thickness < 40 mm (1.5 in.)
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 A808 is noted for good Charpy impact strength at low temperatures and is used in railway cars.
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Physical Properties	Metric	English	Comments

Density	7.75 g/cc	0.280 lb/in³

Mechanical Properties	Metric	English	Comments
Tensile Strength at Break	>= 448 MPa	>= 65000 psi	Varies with size and form
Tensile Strength, Yield	>= 345 MPa	>= 50000 psi	Varies with size and form
Elongation at Break	>= 18 %	>= 18 %	in 200 mm (8 in.); Varies with size and form
	>= 22 %	>= 22 %	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
Charpy Impact	40.0 - 60.0 J @Temperature -45.0 °C	29.5 - 44.3 ft-lb @Temperature -49.0 °F

Component Elements Properties	Metric	English	Comments
Carbon, C	<= 0.12 %	<= 0.12 %
Iron, Fe	>= 97.3 %	>= 97.3 %	As Balance
Manganese, Mn	<= 1.65 %	<= 1.65 %
Nb + V	<= 0.15 %	<= 0.15 %
Niobium, Nb (Columbium, Cb)	0.020 - 0.10 %	0.020 - 0.10 %
Phosphorus, P	<= 0.035 %	<= 0.035 %
Silicon, Si	0.15 - 0.50 %	0.15 - 0.50 %
Sulfur, S	<= 0.050 %	<= 0.050 %	may vary
Vanadium, V	<= 0.10 %	<= 0.10 %

References for this datasheet.

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MSA808A / 14061

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