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square steel pipe is produced according to the ASTM standard stainless steel of a brand. 304 stainless steel pipe is equivalent to our country 0 cr19ni9 (0 cr18ni9) stainless steel pipe. 304 19% chromium, nickel 19%. 304 stainless steel tube is the most widely used as heat resistant stainless steel used for food equipment, general chemical equipment, atomic energy industrial equipment. 304 stainless steel tube is a kind of common stainless steel tube, it is widely used to produce good comprehensive performance, corrosion resistance and formability of equipment and parts. 304 stainless steel pipe is one of the most widely used stainless steel, heat-resistant steel. Used in food production equipment, once upon general chemical equipment, nuclear power, etc.
| Dismeter | SCH 5S | SCH 10S | SCH 20S | SCH 40S | |||||
| inch | ASTM | thinkness | weight | thinkness | weight | thinkness | weight | thinkness | weight |
| 1/4 | 10.30 | 1.00 | 0.234 | 1.2 | 0.275 | 1.5 | 0.333 | 1.7 | 0.369 |
| 1/4 | 13.70 | 1.20 | 0.373 | 1.65 | 0.494 | 2 | 0.582 | 2.2 | 0.629 |
| 3/8 | 17.20 | 1.20 | 0.476 | 1.65 | 0.637 | 2 | 0.755 | 2.3 | 0.854 |
| 1/2 | 21.30 | 1.65 | 0.816 | 2.1 | 1.02 | 2.5 | 1.18 | 2.8 | 1.31 |
| 3/4 | 26.70 | 1.65 | 1.04 | 2.1 | 1.3 | 2.5 | 1.52 | 2.9 | 1.74 |
| 1 | 33.40 | 1.65 | 1.32 | 2.8 | 2.15 | 3 | 2.29 | 3.4 | 2.57 |
| 1 1/4 | 42.20 | 1.65 | 1.67 | 2.8 | 2.76 | 3 | 2.94 | 3.6 | 3.47 |
| 1 1/2 | 48.30 | 1.65 | 1.91 | 2.8 | 3.16 | 3 | 3.37 | 3.7 | 4.1 |
| 2 | 60.30 | 1.65 | 2.39 | 2.8 | 3.98 | 3.5 | 4.92 | 3.9 | 5.44 |
| 2 1/2 | 73.00 | 2.10 | 3.84 | 3 | 5.42 | 3.5 | 6.28 | 5.2 | 9.12 |
| 3 | 88.90 | 2.10 | 4.51 | 3 | 6.37 | 4 | 8.39 | 5.5 | 11.3 |
| 3 1/2 | 101.60 | 2.10 | 5.15 | 3 | 7.29 | 4 | 9.63 | 5.7 | 13.5 |
| 4 | 114.30 | 2.10 | 5.81 | 3 | 8.23 | 4 | 10.9 | 6 | 16 |
| 5 | 141.30 | 2.80 | 9.46 | 3.4 | 11.4 | 5 | 16.6 | 6.6 | 21.7 |
| 6 | 168.30 | 2.80 | 11.2 | 3.4 | 13.6 | 5 | 19.8 | 7.1 | 27.7 |
| 8 | 219.10 | 2.80 | 14.7 | 4 | 20.9 | 6.5 | 33.6 | 8.2 | 42.1 |
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