Steel traders should understand the stainless steel production installation should pay attention to the problem

As is known to all, stainless steel due to its special internal structure and surface of the oxidation film, so that it is more difficult to react with the medium in general chemical corrosion.However,once the oxide film is destroyed, oxygen atoms in the air or liquid continue to infiltrate and internal iron atoms continue to precipitate to form iron oxide and rust. As a professional supplier of stainless steel pipes, fittings and flanges, Haihao Group reminds you to pay attention to the production and installation of stainless steel:

Stainless steel 304 butt welding 90 degee elbows

1.Stainless steel raw materials or machining parts in the transport, loading and unloading, should use special hoisting transport, avoid contact with stainless steel wire rope or other hard carbon steel, so as to avoid collision, scratch the surface.

2.The processing site of stainless steel parts should be relatively stable, and the work table should be upholster of rubber board, so as not to damage the surface of stainless steel.

3.When cutting stainless steel parts, the plates shall be shear or plasma cut; Pipes and other profiles shall be plasma cut or sawed. Lay rubber cushion during shearing to avoid damage to its surface; After plasma cutting, slag should be cleaned in time; When sawing, the clamping place should be protected by mat.

ASTM A312 TP316L seamless steel pipes

4.Stainless steel parts in the installation before welding, must carefully clean the surface of oil, dust and other sundries. Argon arc welding should be used when welding. The weld should be carefully polished to make the surface of the weld and base material smooth transition, no slag, porosity, bite edge, spatter, crack, non-fusion quality defects.

5.Clean the surface of stainless steel after welding.

• (1) the surface of the stainless steel oil, dust should be carefully wiped, clean with neutral water.
• (2) the surface of stainless steel, such as spatter, slag, scratch and other injuries, must be thoroughly polished. When sanding, you can use the hand grinder to install the most fine sand wheel, carefully sanding, pay attention not to over grind, so as not to increase the scratch.
• (3) clean and polished stainless steel surfaces shall be polished with appropriate soft polishing tools so that the damaged stainless steel surfaces react with oxygen in the air to form a new protective film. Polishing requirements uniform, and avoid over – throwing and regeneration scratch. In the removal of the surface of the black oxide skin, polishing, can be in the need to polish some paraffin, better effect. Stainless steel surface treatment, should pay attention to the protection of finished products, to avoid touching, to avoid oil, dust and other secondary pollution.

SS316 SCH80 Pipe Nipples

Stainless steel parts in the use of the process, if stainless steel parts have been corroded and rusted, oxidation black skin or surface protection film scratch, can also be cleaned, polished. Haihao Group has more than 30 years of stainless steel production and processing experience, if you have any suggestions on stainless steel parts attention, welcome to exchange.