6 Inch Stainless Steel Welded Pipe 201 202 310s 304 316 Decorative Welded Polished Ss Pipes
904L welded stainless steel pipe
904L is an austenitic stainless steel. In comparison to 316L, its molybdenum addition gives it superior resistance to localized attack (pitting and crevice corrosion) by chlorides and greater resistance reducing acids and in particular its copper addition gives it useful corrosion resistance to all concentrations of sulphuric acid. Its high alloying content also gives it greater resistance to chloride stress corrosion cracking, but it is still susceptible. Its low carbon content makes it resistant to sensitization by welding and which prevents intergranular corrosion.
It has applications in piping systems, pollution control equipment, heat exchangers, and bleaching systems.
Application
Chemical plant, oil refinery, petrochemical plants, bleaching tanks for the paper industry, combustion gas desulfurisation plants, application in sea water, sulphuric and phosphoric acid. Due to the low C-content, the resistance to intergranular corrosion is also guaranteed in the welded condition.
ElementType 904L (Wt.%)
Carbon: 0.02 max
Manganese: 2.00 max.
Phosphorus: 0.045 max.
Sulfur: 0.035 max.
Silicon: 1.00 max.
Chromium: 19.00-23.00
Nickel: 23.00-28.00
Copper: 1.00-2.00
Molybdenum: 4.00-5.00
Element (Wt.%)
| Carbon | Manganese | Phosphorus | Sulfur | Silicon | Chromium | Nickel | Copper | Molybdenum |
| 0.02max | 2.00max | 0.045max | 0.035max | 1.00max | 19.00-23.00 | 23.00-28.00 | 1.00-2.00 | 4.00-5.00 |
Surface Treatment
| Surface Treatment | Definition | Application |
| NO.1 | A hot - rolled piece whose surface has been treated by heat treatment, pickling or the corresponding process | Chemical Tanks, Pipes, Chemical Industry Equipment etc. |
| 2B | After cold rolling, heat treatment, pickling or other equivalent treatment, the final cold rolling to give appropriate luster | Medical Equipment, Food Industry, Construction Material, Kitchen Utensils etc. |
| BA | After cold rolling, bright heat treatment is given | Kitchen Utensils, Electric Equipment, Building Construction etc. |
| NO.4 | Products polished with abrasives 150 to 180 as specified in JIS R6001 | Kitchen Utensils, Building Construction, Medical Equipment etc. |
| HL | After polishing, use the appropriate abrasive size to form a continuous polishing streak | Building Construction etc. |
| 8K | A mirror-like reflective surface given by polishing with finer abrasives over 800 mesh | Reflector, Mirror, Interior and exterior decoration etc. |
| Commodity | 904L seamless/welded stainless steel pipe |
| Grade | 904L |
| OD | 6mm-426mm, or as customized |
| WT | 1mm-30mm, or as customized |
| Length | 5m-7m, or as customized |
| Surface | Pickling, matt, polished, mirror |
| Application | handrail, railing, staircase, weld mesh screen, door, window, balcony, fence, bench, furniture, etc. |
| Delivery Time | 7-30 days, according to quantity |
| Price Terms | FOB/ CFR/ CIF |
| Package | In bundles, water proof packing, in wooden case, or as per customers’ requirement |
FAQ
Q1:What product information must I provide before making a purchase?
Q6:Do you offer a service for customized products?
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