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ASTM A284/A284M

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ASTM A284/A284M 1990 Edition, December 28, 1990 STANDARD SPECIFICATION FOR LOW AND INTERMEDIATE TENSILE STRENGTH CARBON- SILICON STEEL PLATES FOR MACHINE PARTS AND GENERAL CONSTRUCTION

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Description / Abstract: This specification covers carbon steel plates subject to mechanical test requirements and intended for machine parts and general construction by gas cutting, welding, or other means.

A definite silicon content is specified in order to limit the carbon to the lowest practicable amount consistent with the specified tensile strength and the thickness of the material.

When the steel is to be welded, it is presupposed that a welding procedure suitable for the grade of steel and intended use or service will be utilized.

The maximum thickness for plates to be delivered under this specification is 12 in. [300 mm] for plates of Grade C, and 8 in. [200 mm] for plates of Grade D.

The values stated in either inch-pound units or SI units are to be regarded as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with this specification.