Stainless steel has high deformation resistance, is prone to work hardening, is easily oxidized at high temperatures, and is prone to cracking at the edges. It is divided into two parts: hot-rolled billet rolling and cold-rolled precision rolling. The raw materials, temperature, process parameters, equipment, lubrication, plate shape tension, surface protection, and later microstructure and proper
Hot rolled stainless steel coil is a thick material coil produced by high-temperature rolling, with a thickness range of 1.5-16mm and a surface with oxide black skin. It is thick in size, high in strength, and does not require appearance. It is mainly used in structural pressure bearing, chemical equipment, and heavy machinery scenarios.
1、 Core material foundation: 304/316L itself is austenitic non-magnetic stainless steel 304 and 316L belong to austenitic stainless steel. In the factory solution annealed state, all internal crystals are austenitic structure, and the austenitic crystal structure does not have ferromagnetism. The new soft steel strip is almost non-magnetic, and the magnet does not adsorb.
1、 Open coil basic processing (the first process of coil material) 1. Kaiping/Splitting Kaiping: Stainless steel coils are uncoiled, leveled, and cut into flat plates (stainless steel plates) for cutting, bending, and laser cutting. Slitting: Large rolls are cut into narrow strips of steel for welding pipes, steel strips, precision stamping, strapping, and decorative edge strips.
1、 Key points of pre-treatment before passivation 1. The surface must be degreased and cleaned Rolling lubricating oil, stretching oil, rust proof oil, fingerprints, and dust will isolate the passivation solution, causing uneven thickness of the passivation film, partial failure to apply the film, and non-compliance with salt spray standards. Light and thin steel strip with priority alkal
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