304 stainless steel is the most conventional material in stainless steel. It has a density of 7.93 g / cm3 and is also called 18 chromium 8 nickel stainless steel in the industry. High temperature resistance up to 800 ℃, with good processing performance and high toughness, widely used in metal stamping industry, home decoration industry, food and medical industry, electrical appliance production industry and so on.
The common labeling methods on the market are 0Cr18Ni9 and SUS304. Among them, 0Cr18Ni9 generally indicates national standard production, 304 generally indicates ASTM standard production, and SUS 304 indicates daily production standard.
Chinese name: 304不锈钢/0Cr18Ni9
Foreign name: 304 stainless steel / SUS304
Features: Good corrosion resistance and stamping tensile toughness
Magnetic property: The raw material is non-magnetic (it may be slightly magnetic due to the impact of the stamping mold after deep processing)
National standard: GB / T 3280-2015
Semi-finished products: Hot-rolled sheet, hot-rolled steel strip (without annealing)
Element content: JIS G4305 (cold-rolled stainless steel plate, sheet and strip)
SUS 304 requirement,%
C (charcoal)
Mn (manganese) ≤2.00
P (phosphorus)
S (sulfur)
Si (silicon) ≤1.00
Cr (Cr) 18.0-20.0
NI (nickel) 8-10
Scope of application: 304 stainless steel is the most commonly used type of chromium-nickel stainless steel. As a universally used material, it has good corrosion resistance, heat resistance, high temperature strength and machine characteristics; hot workability such as stamping and bending. Good, no heat treatment hardening phenomenon (operation temperature -196 ℃ ～ 800 ℃). Corrosion resistance in the atmosphere. If it is an industrial atmosphere or re-purification area, it needs to be cleaned in time to prevent corrosion. Suitable for food processing, storage and transportation. Has good processing functions and solderability. Plate heat exchangers, metal stampings, bellows, household items (tableware, cabinets, indoor pipelines, water heaters, boilers, bathtubs), auto parts (windshield wipers, mufflers, molded products), medical appliances, building materials, chemicals, food industry , Agriculture, ship parts, etc. 304 stainless steel is a nationally recognized food-grade stainless steel.
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