ASTM A312/A213 TP304/304L/316/316L Seamless Stainless Steel Pipe Ss Pipe
ASTM A312/A213 TP304/304L/316/316L Seamless Stainless Steel Pipe Ss Pipe
| Product name | Stainless Steel Pipes Seamless/welded |
| Steel Grade | (TP)201, 304, 304L, 316, 316L,317L,321,310S, 374, 904L(welded), etc. |
| Standard | ASTM A213/A312/A269, DIN17456/17458/17459, etc |
| Forming technics | Seamless (Hot rolling/Cold rolling), Welding(ERW) |
| Outer diameter | 8mm~426mm |
| Wall thickness | Sch5s~Sch160s |
| Length of pipe | 5.8/5.9 meters (suitable for 20ft container loading), 6 meters, by random or customerised. |
| Packing | Bundling, Seaworthy material wrapping |
| Shipment | Seaworthy packing pipes being shiping by 20ft/40ft container. |
| Loading port | Qingdao Port, Tianjin port, Shanghai port. |
| Supplying capacity | 100tons per month |
| Payment terms | T/T, L/C at sight |
| Applications | Construction, decoration. Normal Industrial purpose, Petroleum, chemical industry. Electrical appliances, automotive, aerospace. Sanitary grade for food industry or medical application. |
| chemical component/% | |||||||||||||||
| C | Si | Mn | P | S | Ni | Cr | Mo | N | 其他 | ||||||
| 316 | ≤0.08 | ≤1 | ≤2 | ≤0.045 | ≤0.030 | 10.0~14.0 | 16.0~18.0 | 2.00-3.00 | — | ||||||
| heat treatment | yield strengthσ0.2/Mpa | extension /Mpa | elongationδ5/% | HBS | HRB | HV | |||||||||||
| 316 | 1010~1150快冷 | ≥205 | ≥520 | ≥40 | ≤187 | ≤90 | ≤200 | ||||||||||
Corrosion resistance
Corrosion resistance is better than 304 stainless steel, in the production process of pulp and paper has good corrosion resistance. And 316 stainless steel is also resistant to Marine and aggressive industrial atmospheres.
Heat resistance
316 stainless steel (06Cr17Ni12Mo2) has good oxidation resistance in discontinuous use below 871°C(1600°F) and in continuous use above 927 °C(1700°F). It is best not to use 316 stainless steel continuously in the range of 427°C to 857°C(800°F to 1575°F), but it has good heat resistance when used continuously outside this temperature range. 316L stainless steel has better carbide precipitation resistance than 316 stainless steel and can be used in the above temperature range.
Heat treatment
Annealed in the temperature range of 850-1050°C followed by rapid annealing followed by rapid cooling. 316 stainless steel cannot be hardened by heat treatment.
welding
316 stainless steel has good welding performance. Can be welded using all standard welding methods. According to the use, 316Cb, 316L or 309Cb stainless steel filler rod or welding rod can be used for welding. In order to obtain the best corrosion resistance, the welding section of 316 stainless steel needs to be annealed after welding. Post weld annealing is not required if 316L stainless steel is used.
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