Stainless Steel Coil 316L 0.3-3.0mm 2B/No.1 Finish for Chemical Equipment, Marine And Food Industry

As the source factory, we adopt the whole process of independent production, from raw materials to finished products strictly
control, to ensure quality traceability

Raw material selection: high purity nickel and chromium alloy billet is selected, and the composition is detected by spectrometer, which conforms to ASTM/EN standard.Smelting and casting:Electric arc furnace melting, precise temperature control to 1600℃, remove impurities and adjust the alloy proportion. The slab is formed by continuous casting process, with a thickness of 150-250mm, without internal pores and slag inclusions.Hot and cold rolling:Hot rolling: the slab is heated to 1200℃, and the slab is roughed and finished to the thickness of 3-20mm to form the primary coil.Cold rolling: after annealing, secondary rolling to 0.05-3mm, improve surface finish and dimensional accuracy.Annealing and pickling:Continuous annealing furnace eliminates internal stress and restores material ductility. The mixture of nitric acid and hydrofluoric acid is pickled to remove the oxide scale and passivate the surface.Rolling and packaging: real-time monitoring by laser thickness gauge, cutting error ≤0.02mm; Anti-rust paper + steel belt binding, to meet the needs of sea moisture-proof.

Description of the core features of the product

Corrosion resistance: passivation film is formed by adding chromium (≥10.5%), which can resist acid, alkali, salt spray and humid environment erosion, and is suitable for harsh scenes such as chemical industry and ocean engineering.High strength and toughness: tensile strength of more than 520MPa, yield strength of more than 210MPa, both impact resistance and fatigue resistance, to meet the needs of automotive structural parts, building load-bearing parts and other high strength.Thermal stability: stable in the range of -200℃ to 800℃, not easy to oxidation or deformation at high temperature, suitable for high temperature equipment manufacturing (such as boilers, heat exchangers).Easy processability: support cold rolling, stamping, welding and other processes, can be customized thickness (0.05mm-8mm), width (100mm-2000mm) and surface treatment (2B, BA, No.4, etc.).

Surface treatment of stainless steel

NO.1After hot rolling, heat treatment and pickling treatment, the surface is rough and dull, silver white. It is often used in chemical equipment, corrosion resistant structural parts and other industrial fields.2BAfter cold rolling, heat treatment, pickling and mild leveling treatment, the surface is even matte, slightly hazy. Suitable for kitchen utensils, architectural decoration and other occasions requiring medium gloss.BAMade by cold rolling and bright annealing process, the surface is as smooth and transparent as mirror, without obvious processing texture. Common in precision instruments, high-end decorative materials.NO.4Use 150-180# grinding belt to polish, form a fine short linear lines (hair silk lines), with a certain reflectivity. Widely used in elevators, home appliance panels, etc.HLThrough continuous grinding to produce uniform long straight lines, showing matte metal texture, also known as "hair board". More used for doors, Windows, handrails and other decorative parts.8KHigh precision polishing process, the surface to achieve mirror effect, high image definition. It is divided into ordinary 8K (basic mirror) and fine 8K (ultra-high reflection), which is used for reflective decoration and art installation.PerforatedStamping regular holes on the plate, both functional and decorative, common in the building ventilation partition, filter screen, etc.EmbossedThe three-dimensional pattern (such as diamond, square, etc.) is formed by mould pressing to enhance anti-slip and visual effect, which is used for floor and decorative wall.ColorEndow surfaces with color (such as gold, rose, blue, etc.) by electroplating, PVD, or coating techniques for art deco and signage systems.Water RippleThe special embosting process forms wavy texture with dynamic light and shadow effect, which is mostly used for high-end decorative panels and art design (Note: it is not directly mentioned in the evidence, and is a common process in the industry).

Q: Are you trading company or manufacturer ?
A: We are professional manufacturer for steel ,and our company also is a very professional and technical foreign trade
company for steel products. We have more export experience with competitive price and best after-sales service. Apart from this,we can provide a wide range of steel products to meet the requirement of customer.