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ASTM A501 Welded And Seamless Steel Structural Tubing
This specification covers hot-formed welded and seamless carbon steel square, round, rectangular, or special shape structural tubing for welded, riveted, or bolted con-struction of bridges and buildings, and for general structural purposes.
Description
Tianjin Wanlei Steel Pipe Co., Ltd. is one of the leading manufacturers and suppliers of astm a501 welded and seamless steel structural tubing in China, featured by quality products and low price. If you're going to wholesale durable astm a501 welded and seamless steel structural tubing made in China, welcome to get pricelist and free sample from our factory.
1.Chemical requirements
Element | Composition % | |
| Heat analysis | Product analysis | |
| carbon max | 0.26 | 0.30 |
| Phosphorus max | 0.035 | 0.045 |
| sulfur max | 0.035 | 0.045 |
copper,when copper steel is specifie min | 0.20 | 0.18 |
2.Tensile requirements
| Tensile strength min (Mpa) | 400 |
| Yield strength min (Mpa) | 250 |
| Elongation in 2in min % A | 23 |
| Elongation in 8in min % A | 20B |
A Elongation may be determined in a gage length of either 2 in.(50.8 mm)or 8 in (203.2 mm)at the manufacturer's option
B For material under 5/16 in (7.9 mm) in thickness, a deduction from the percentage elongation of 1.25 % in 8 in (203.2 mm) specified in Table 2 shall be made for each decrease of 1/32 in (0.79 mm) of the specified thickness under 5/16 in (7.9 mm) finished tubing manuafcauted in accordance with this specification, or an analysis may be made from flat-rolled stock from which the welded tubing is manufactured.
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