Shandong Hongqiao Energy Equipment Technology Co., Ltd.
Shandong Hongqiao Energy Equipment Technology Co., Ltd.
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S235,S275,S355 350x350 shs square hollow section steel tube
| 1. Commodity: | steel tube |
| 2. Out Diameter: | 13.7mm-914mm |
| 3. Wall Thickness: | 2mm-120mm |
| 4. Length: | 2m-12m |
| 5. Producing Standard: | American ASME B36.10M, ASTM, API 5L, API 5CT |
| Japanese JIS | |
| German DIN | |
| Chinese GB | |
| BS standard | |
| 6. Main Material:(Carbon Steel & Low Alloy steel) | ASTM A53, A106, A210, A252, A333 etc; |
| X42, X46, X52, X60, X65, X70 etc; | |
| JIS STPG42, G3454, G3456 etc; | |
| German St37, St42, St45, St52, DIN1626, DIN17175 | |
| Chinese 20#, Q345, 16Mn etc | |
| 7. Special specifications: | Available according to customer’s requirements and quantity. |
| 8. End Shape: | Beveled end , plain end, varnished, or adding plastic caps to protect the two ends as per customer’s requirements |
| 9. Surface treatment: | Painted, Oiled, galvanized, phosphate etc |
| 10. Usage: | Widely used in the mechanical treatment field, petrochemical industry, transport and construction field |
| Ordinary structural purposes and mechanic structural purposes, for example in construction field, fulcrum bearing etc; | |
| The transportation of fluids in the projects and big equipments, for example transport of water, oil, gas etc | |
| Can be used in low and medium pressure boiler for the transportation of fluids, for example steam tube, big smoke tube, small smoke tube, generating tube etc | |
| 11. Third party inspection: | Welcome you to send a third party inspecting company (BV, SGS etc) to check the quality of our final products. |
| Working Method | Range | Size of ID | Tolerance | |||||
| ID tolerance | WT(mm) | Ovality | Curvature | |||||
| H8 | H9 | H10 | ||||||
| Cold drawn | 25-250 | >30-50 | 0.039 | 0.062 | 0.1 | ±5% to 7.5% | ≤0.10-0.20 | 0.3 |
| Cold rolling | 25-150 | >50-80 | 0.046 | 0.074 | 0.12 | ID>210mm | ||
| Cold drawn-hone | 40-250 | >80-120 | 0.054 | 0.087 | 0.14 | ±10% | ||
| Cold drawn-SRB | 50-250 | >120-180 | 0.063 | 0.1 | 0.16 | |||
| Cold drawn-polish | 40-250 | >180-250 | 0.072 | 0.115 | 0.185 | |||
| Polish-SRB | 50-250 | Other size and technique parameter upon request | ||||||
