Huzhou Dingshang Stainless Steel CO., LTD
1.We are specialized in producing welded stainless steel pipe ,and we have passed the certificate BV,RINA,ISO,SGS and Manufacture License of Special Equipment People's Republic Of China, etc.
2. It is one of our superiorities that perfect production process and strict quality control system. Our aim is: Quality is the life, reputation is the cornerstone of development!
3.Price is another superiority, we can supply the competitive price to our clients based on ensuring the high quality products.
Our company:
4.
The range of products: Welded stainless steel pipe/tube, Seamless stainless steel pipe, Corrugated stainless steel tube,U-tubes,and BA-tubes.
5.Equipments:
All Equipments are from Taiwan.The high accuracy tubes can be produced by our machines, and there is the perfect surface of the tubes.
Perfect testing equipment ensure that you , our clients receive 100% qualified products.
6. The details of packaging:
A. In hexagona bundles, the pipes will be wrapped in plastic.
B. Plywood box, The pipes are wrapped in plastic and put in to plywood box.
Name | Stainless Steel pipe | |||||
Standard | ASTMA249, A268, A269, A270, A312, A554, A688, A789, EN10217-7, EN10312, JIS G3468 | |||||
Material Grade | TP304, TP304L, TP316, TP316L, TP317L, TP310S, TP321, AISI904L, AISI409L, AISI436L, AISI439, S31803/2205. etc. | |||||
Outer Diameter | 10.0mm--219.0mm, or as customer requirments. | |||||
Thickness | 0.4mm - 8.0mm | |||||
Length | 2000mm-8000mm or as customers' request | |||||
Tolerance | a) Outer Diameter: +/- 0.1mm or as the standard. | |||||
b) Thickness: +/- 0.02mm, or as the standard. | ||||||
c) Length: +/-2mm, or as the standard. | ||||||
Surface | Finished A+P and BA. | |||||
Polishing, 180, 240, 400, 600 Grit. | ||||||
Hair Line | ||||||
Application | Vessel, petroleum and chemical, light industry and food industry, pulp and paper industry, energy and environmental industries, etc | |||||
Test | Hardness test(HRB), Flattening test, Flaring test, Flange Test, Reverse-bend Test, NDE, Hydro test, Inergranular Corrosion Test. | |||||
Chemical Composition of Material | Material | 304 | 304L | 310S | 316L | 439 |
Composition | ||||||
C | ≤ 0.08 | ≤ 0.035 | ≤ 0.08 | ≤ 0.035 | ≤ 0.07 | |
Si | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 | |
Mn | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 | ≤ 1.00 | |
P | ≤ 0.045 | ≤ 0.045 | ≤ 0.045 | ≤ 0.045 | ≤ 0.040 | |
S | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 | |
Cr | 18.0-20.0 | 18.0-20.0 | 24.0-26.0 | 16.0-18.0 | 17.0-19.0 | |
Ni | 8.0-11 | 8.0-13.0 | 19.0-22.0 | 10.0-14.0 | ≤ 0.05 | |
N | ≤ 0.04 | |||||
Mo | ≤ 0.75 | 2.0-3.0 | ||||
Ti | Ti≥ 0.20+4(C+N); ≤ 1.10Al≤ 0.15 | |||||
Mechanical Property | Material Item | 304 | 310S | 316L | 439 | |
Tensile Strength | ≥ 515 | ≥ 515 | ≥ 485 | ≥ 415 | ||
Yield Strength | ≥ 205 | ≥ 205 | ≥ 170 | ≥ 205 | ||
Extension | ≥ 40% | ≥ 40% | ≥ 40% | ≥ 20% | ||
Hardness (HRB) | ≤ 90 | ≤ 90 | ≤ 90 | ≤ 89 | ||
Payment | Payment by T/T, 30% as advance payment and 70% balance pay before shipment. We can accept at sight L/C. | |||||
Delivery time | A. 7 days if this goods is stock goods. | |||||
B. The goods are usually finsihed within 30 days. | ||||||
Validity | Valid time is 3 days for price usually. |