Huzhou Dapu Stainless Steel Co., Ltd, is a company specialized in producing and marketing stainless steel pipe products. The company is jointly established by two companies which are professional manufacturers of stainless steel welded pipe and stainless steel seamless pipe respectively.
Our subordinate manufactories pass ISO9001-2000, PED, and the Manufacture License of Special Equipment People's Republic of China. The company's annual production capacity is 15000 tons stainless steel welded pipe, and 8000 Tons seamless stainless steel. The company has a professional testing center, with advanced testing equipment at home and abroad: Eddy current flaw detector, ultrasonic flaw detector, direct-reading spectrometer, X-ray detector, pressure unit, universal pressure test apparatus, and crystal physics and chemistry equipment. In strict line with GB, ASTM(ASME), EN, DIN, JIS and other international standard.
Specification group form that produce stainless steel welded pipe: Single slit(Φ 8mm-Φ 630mm), wall-thickness(0.5mm-25mm), girth(Φ 630mm-Φ 3000mm), wall-thickness(3mm-45mm)
Specification group form that produce stainless steel seamless pipe(Φ 6mm-Φ 610mm), wall-thickness(0.6mm-30mm).
Main material: 304\ 304L\ 316\ 316L\ 321\ 310S\ 317L\ 347H\ S31803\ 2205\ 904L, etc. The produce are widely used in petroleum, chemical, paper, machinery, medicine, shipping, heat exchanger and other field.
| Name |
Stainless Steel Seamless Pipe(304 ) |
| Standard |
ASTM, GB, JIS, DIN, EN, AISI |
| Material Grade |
TP304 TP304L TP316 TP316L TP347 TP347H TP321 TP321H TP310 TP310S |
| TP410 TP410S TP403 |
| S31803/S32205 S32750 S32760 |
| Outer Diameter |
Seamless Pipe: 4mm-914.4mm |
| Welded Pipe: single slit(Φ8mm-Φ630mm); girth(Φ630mm-Φ3000mm), |
| Thickness |
Seamless Pipe: 0.6mm - 60mm |
| Welded Pipe: single slit(0.5mm-25mm);girth(3mm-45mm) |
| Length |
5.8-6.1 m or as customers' request |
| Tolerance |
Acording to the Standard. |
| Surface |
180G, 320G, 400G Satin / Hairline |
| 400G, 500G, 600G or 800G Mirror finish |
| Application |
Petrochemical industry, chemical fertilizer industry, oil refining industry, oil and gas industry, light industry and food industry, pulp and paper industry, energy and environmental industries. |
| Test |
UT, ET, HT, RT,ect, and others according to the standard,or as the requests of the customers |
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