ZHANGJIAGANG HUA DONG ENERGY TECHNOLOGY CO.,LTD
Zhangjiagang Hua Dong Energy Technology Co., Ltd.
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ASME SA249 / ASTM A249 TP304 TP316L TP321 Stainless Steel Welded Pipe Bright Annealed Plain End
Production Information
Size Range:
| Production | Outside Diameter | Wall Thickness |
| Boiler Pipe | 6.00mm to 630mm | 0.5mm to 52mm |
Final Finishing
Solution Annealed & Pickled / Bright Annealed.
Type of Pipes:
U-bend & Straight.
Some of the quality tests carried out by us includes:
| Corrosion Test | Conducted only when specially requested by the client |
| Chemical Analysis | Test done as per required quality standards |
| Destructive / Mechanical Testing | Tensile | Hardness | Flattening | Flare | Flange |
| Reverse-bend and Re. flat tests | Carried out in full compliance with relevant standards & ASTM A-450 and A-530 norms, which ensures trouble-free expansion, welding & use at customers end |
| Eddy Current Testing | Done to detect homogeneities in subsurface by using Digital Flaw-mark Testing System |
| Hydrostatic Testing | 100% Hydrostatic Testing carried out according to ASTM-A 450 norms for checking tube leakage, and biggest pressure we can support 20Mpa/7s . |
| Air Under Pressure Test | To check any evidence of air leakage |
| Visual Inspection | After passivation, every single length of tubes & pipes is subjected to thorough visual inspection by trained staff for detecting surface flaws & other imperfections |
Supplementary Testing : Apart from the above mentioned tests, we also carry out on the manufactured products supplementary testing. The tests conducted under this include:
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