Multipurpose 6061 Aluminum I-Beams. Yield Strength: 35, 000 psi. Hardness: Brinell 95 (Soft) Temper: T6. Fabrication: Extruded. Specifications Met: ASTM B221. Also known as American Standard I- Beams, these I-beams have rounded corners. The most widely used aluminum, 6061 is fabricated into everything from pipe fittings and containers to.
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