| Standard: | ASTM A26 ， ASTM A270 ， ASTM A789， EN10216-5， DIN 17458， DIN 17459 | Grade: | TP304， TP304L， TP 310S， TP316L， TP316Ti ， TP317L， TP321， TP347， S31803， S32750 |
|---|---|---|---|
| Type: | Coil， U Bend ， Staight | Packing: | Ply-Wooden Case ， Iron Case |
| High Light: | bright annealed stainless steel tube， stainless steel coil tube | ||
Stainless Steel Seamless Tube， ASTM A269 / ASME SA269 ，Pickled and Annealed， Plain End ， Plastic Cap TP304/304L ，TP316/316L .TP310/310H， TP321/321H， TP347/347H.
TONG CHUANG deal with Stainless Steel and tube already more than 10 years， every year sell more than 80000 tons of Stainless Steel and tube. Our client already cover more than 45 countries.
1.1 This specification covers grades of nominal-wall-thickness， stainless steel tubing for general corrosion-resisting and low- or high-temperature service.
1.2 The tubing sizes and thicknesses usually furnished to this specification are 0.252 in. (6.4 mm) in inside diameter and larger and 0.020 in. (0.51 mm) in nominal wall-thickness and heavier.
1.3 Mechanical property requirements do not apply to tubing smaller than 1/8 in. (3.2 mm) in inside diameter or 0.015 in. (0.38 mm) in thickness.
1.4 Optional supplementary requirements are provided and， when one or more of these are desired， each shall be so stated in the order.
1.5 The values stated in inch-pound units are to be regarded as the standard.
APPLICATIONS FIELD :
1. Pipe and Tubes for petrochemical industry
2. Pharmaceutical industry
3. Food industry
4. Aviation and aerospace industry
5. Architectural decoration industry
Quality Control in our group :
| 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 |
