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Decorative Welded 201 Stainless Steel Round Pipe Stick Welding
How to maintain
Corrosion is a natural phenomenon. Pure elements always react with the surrounding environment, which is why so few elements are naturally found in their pure form. Iron is no exception.
In wet or humid conditions iron reacts with the oxygen contained in water to form rust (iron oxide). The red flaky oxide deteriorates easily—exposing more material to corrosion. Iron and standard carbon steels are highly susceptible to this type of corrosion.
Stainless steel has the innate ability to form a passive layer that prevents corrosion. The secret?
Chromium.
The chromium found in all stainless steels reacts quickly with oxygen environments, much the same as iron. The difference, however, is that only a very fine layer of chromium will oxidize (often only a few molecules in thickness). Unlike flaky and unstable iron oxide, chromium oxide is highly durable and non-reactive. It adheres to stainless steel surfaces and won’t transfer or react further with other materials. It is also self-renewing—if it’s removed or damaged, more chromium will react with oxygen to replenish the barrier. The higher the chromium content, the faster the barrier repairs itself.
Stainless Steel Round Pipe Specification
| Name | Decorative Welded 201 Stainless Steel Round Pipe Stick Welding |
| Items | 304 |
| Standard | ASTM A554 |
| 316L:Ni10%,Cr16% | |
| Outer Diameter | 20mm |
| Thickness | 0.5mm |
| Length | 3660mm,4575mm,6m, or as customers' request |
| Tolerance | a) Outer Diameter: +/- 0.2mm |
| b) Thickness: +/- 0.03mm | |
| c) Length: +/- 5mm | |
| Surface | annealing,pickling |
| sandblasting | |
| Application | industry,exhausting,welding,furniture,window |
| Test | Squash test, extended test, water pressure test,heat treatment, NDT |
Stainless Steel Pipe Chemical Component( %)
| Grade ASTM | C | Si | Mn | S | P | Cr | Ni |
| 201 | ≤0.15 | ≤0.75 | 5.50-7.50 | ≤0.030 | ≤0.060 | 16.00-18.00 | 3.50-5.50 |
| 304 | ≤0.07 | ≤1.00 | ≤2.00 | ≤0.030 | ≤0.035 | 17.00-19.00 | 8.00-11.00 |
