Bethlehem Steel BETHSTAR Grade 70 1/4 to 1 in. thick, killed steel plate

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Bethlehem Steel BETHSTAR Grade 70 1/4 to 1 in. thick, killed steel plate (discontinued **)
Categories:	Metal; Ferrous Metal; Alloy Steel; Low Alloy Steel; ASTM Steel; Carbon Steel; Low Carbon Steel
Material Notes:	Bethlehem's BethStar steels are proprietary grades of steel used for plates only. BethStar is produced as killed steel with fine grain practice, and is available in four strength levels. They are produced by a controlled-rolling process which results in plates having excellent formability, weldability, and impact toughness properties. Normal uses are demanding structural applications where strength to weight ratios are maximized. Frequently used as a replacement for some quenched and tempered steel plate grades. Its formability allows replacement of multi-piece weldments with formed parts. Information provided by Bethlehem Steel Corporation Data published in 1997. Bethlehem Steel in no longer in business.
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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	159	159	based on conversion from tensile strength
Hardness, Rockwell B	83	83	based on conversion from tensile strength
Tensile Strength at Break	>= 552 MPa	>= 80000 psi
Tensile Strength, Yield	>= 483 MPa	>= 70000 psi
Elongation at Break	>= 14 %	>= 14 %	in 8"
Bend Radius, Minimum	1.0 t	1.0 t	≤1/4" W; ASTM A6 PARA. S14
	1.5 t	1.5 t	>1/4 to 1" W; ASTM A6 PARA. S14

Component Elements Properties	Metric	English	Comments
Carbon, C	<= 0.10 %	<= 0.10 %
Iron, Fe	>= 97.955 %	>= 97.955 %
Manganese, Mn	<= 1.4 %	<= 1.4 %
Niobium, Nb (Columbium, Cb)	<= 0.060 %	<= 0.060 %
Phosphorus, P	<= 0.025 %	<= 0.025 %
Silicon, Si	<= 0.35 %	<= 0.35 %
Sulfur, S	<= 0.010 %	<= 0.010 %
Vanadium, V	<= 0.10 %	<= 0.10 %

**
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