Tianjin Lefin Industrial Co., Ltd is one of the most experienced manufacturers and suppliers of astm a500 gr.d square tube in China. Please feel free to buy high quality astm a500 gr.d square tube from our factory. Good service and reasonable price are available.
Chemical Requirements
Composition, %
| Element | Grades A, B and D | Grace C | ||
| Heat | Product | Heat | Product | |
| Analysis | Analysis | Analysis | Analysis | |
| Carbon, max | 0.26 | 0.3 | 0.23 | 0.27 |
| Manganese, max | ... | ... | 1.35 | 1.4 |
| Phosphorus, max | 0.035 | 0.045 | 0.035 | 0.045 |
| Sulfur, max | 0.035 | 0.045 | 0.035 | 0.045 |
| Copper, when copper steel | 0.2 | 0.18 | 0.2 | 0.18 |
| is specified, min | ||||
Tensile Requirements
Round Structural Tubing:
| Grade A | Grade B | Grade C | Grade D | |
| Tensile strength, mn, ps (MPa) | 45 000 | 58 000 | 62 00 | 58 000 |
| -310 | -400 | -427 | -400 | |
| Yield strength, mn, psi (MPa) | 33 000 | 42 000 | 46 000 | 36 000 |
| -228 | -290 | -317 | -250 | |
| Elongation in 2 in. (50.8 mm), min, %A | 25B | 23C | 21D | 23C |
Shaped Structural Tubing:
| Grade A | Grade B | Grade C | Grade D | |
| Tensile strength, mn, ps (MPa) | 45 000 | 58 000 | 62 00 | 58 000 |
| -310 | -400 | -427 | -400 | |
| Yield strength, mn, psi (MPa) | 39 000 | 46 000 | 50 000 | 36 000 |
| -269 | -317 | -345 | -250 | |
| Elongation in 2 in. (50.8 mm), min, %A | 25B | 23C | 21D | 23C |
ASTM A500 Carbon Steel Structural Tubing provides several advantageous qualities that make it a highly sought after construction material for structural load bearing applications. Some of the most recognizable beneficial qualities that A500 Carbon Steel Structural Tubing provides includes:
excellent weldability,good machinability,can be cold worked,aesthetically pleasing.
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