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ASTM A529/A529M-26
Standard Specification for High-Strength Carbon-Manganese Steel of Structural Quality
1.1 This specification covers carbon-manganese steel shapes, plates, and bars of structural quality for use in riveted, bolted, or welded construction of buildings and for general structural purposes.
1.2 Material under this specification is available in two grades:
Grade | Yield Strength, ksi [MPa] | Thickness (max) |
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50 [345] | 50 [345] | Plates to 1 in. [25 mm] thick to 15 in. [380 mm] wide |
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| Bars to 31/2 in. [90 mm] |
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| Shapes with flange or leg thickness to 11/2 in. [40 mm] inclusive |
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55 [380] | 55 [380] | Plates to 1 in. [25 mm] thick to 15 in. [380 mm] wide |
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| Bars to 3 in. [75 mm] |
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| Shapes with flange or leg thickness to 11/2 in. [40 mm] inclusive |
1.3 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. See Appendix X3 of Specification A6/A6M for information on weldability.
1.4 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.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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