Air Force Metal Materials Co., Ltd., specializing in the production and sale of stainless steel, has a BA plane, 2B surface, soft material, the hard material, hot-rolled stainless steel strip, cold rolled stainless steel, stainless spring steel, stainless steel is mainly used in electronics, medical, chemical, metal hose industry, roughness, hardness, and other ultra-thin degree of precision stainless steel strip according to customer requirements of production! Main material: 301,301L, 302,304,305,316,316L, 321,316,310,310S such as 300 series stainless steel rolling belt, while the production and supply of stainless steel spring wire, stainless steel seamless pipe, stainless steel capillary, stainless steel pipe, stainless steel screw wire, stainless steel sheet. We welcome new and old customers to call us or visit us, and is willing to provide you with quality service, and you hand in hand, create brilliant. Our production of stainless steel: Stainless steel plate manufacturing method according to two types of hot-rolled and cold-rolled, including sheets and 4.5-35 mm thick sheet thickness of 0.5-4 mm. By organizational characteristics of steel is divided into five categories: austenitic, austenitic - ferritic, ferritic, martensitic, precipitation hardening. In order to ensure the yield strength of stainless steel plates, the mechanical properties of tensile strength, elongation and hardness to meet the requirements, you must go through annealing, solution heat treatment, aging heat treatment before delivery plate. Corrosion resistance of stainless steel primarily depends on its alloy composition (chromium, nickel, titanium, silicon, aluminum, etc.) and internal organizational structure, play a major role in the chromium. Chromium has a high chemical stability, can form a passive film on the steel surface, the metal with the outside world to isolate and protect steel from oxidation and increase the corrosion resistance of steel. After the destruction of the passive film, corrosion resistance on the decline. Classification steel (including steel): 1, according to the thickness of the classification (1) sheet (2) in the plate (3) Plate (4) special plate 2, according to the production method Classification (1) hot-rolled steel (2) cold rolled steel plate 3, according to the surface characteristics of classification (1) galvanized sheet (hot galvanized plate, galvanized sheet) (2) tin plate (3) composite plate (4) color coated steel 4, By Application (1) bridge plate (2) boiler plate (3) shipbuilding steel plate (4) armor plate (5) automotive steel (6) roof plate (7) Structural Steel (8) electrical steel (silicon) (9) of the spring plate (10) Other Second, the general and common mechanical structure with steel grade JIS in Japan Series 1, Japanese steel (JIS series) grades in ordinary structural steel is mainly composed of three parts, said first part of the material composition, such as: S (Steel), said steel, F ( Ferrum) represents iron; the second part represents the different shapes, kinds, uses, such as P (Plate) display plate, T (Tube) represents the tube, K (Kogu) shows tool; third part represents numeral of generally lowest anti- tensile strength. Such as: SS400-- first S represents steel (Steel), S represents a second "structural" (Structure), 400 for the lower limit of the tensile strength of 400MPa, a tensile strength of the whole expressed 400MPa of ordinary structural steel. SPHC 2, SPHC-- first steel Steel abbreviation S, P is the abbreviation plate Plate, H for Hot Heat abbreviation, C abbreviation for Commercial Commercial, said the general overall hot-rolled steel sheet and strip. SPHD 3, SPHD-- expressed stamping hot-rolled steel sheet and strip. SPHE 4, SPHE-- expressed deep drawing hot-rolled steel sheet and strip. SPCC 5, SPCC-- expressed general cold rolled carbon steel sheet and strip, which is equivalent in Q195-215A grades. Where C is the third letter abbreviation Cold Cold. When the need to ensure the tensile test at the end of grades plus T for SPCCT. SPCD 6, SPCD-- expressed drawing cold rolled carbon steel sheet and strip, equivalent to Chinese 08AL (13237) quality carbon structural steel. SPCE 7, SPCE-- expressed deep drawing cold rolled carbon steel sheet and strip, equivalent to Chinese 08AL (5213) deep drawing steel. The need to ensure non-aging property, the N is added at the end of grade SPCEN. Cold-rolled carbon steel sheet and strip quenching Code: annealed state A, the standard quenching of S, 1/8 hard for 8,1 / 4 hard for 4,1 / 2 hard 2 hard one. Surface processing code: Matte finish is D, bright finish for B. SPCC-SD represents the standard quenched, usually with a matte finish of cold-rolled carbon sheet. Again SPCCT-SB represents the standard conditioning, light processing, cold-rolled carbon sheet to ensure that the requirements of the mechanical properties. 8, JIS mechanical structural steel grades that method: S + carbon content + letter code (C, CK), in which the carbon content of intermediate value × 100, said the letter C: carbon K: represents carburizing steel. S20C carbon structural steel coil as its carbon content of 0.18-0.23%. 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