Good translation Metal Products (Shanghai) offers stainless steel (made of stainless steel / stainless steel imports) 420 stainless steel / steel 420 / 420 steel bar / 420 Coil / 420 steel / steel 420 / 420 wire (good translation Metal Products (Shanghai) Co., Ltd. ) 
 420 stainless steel is generally divided into 420J1, 420J2 two materials. 
 420J2 (3Cr13) stainless steel strip is produced according to U.S. ASTM standards of a stainless steel grades. 
 420 0.13% chromium, with carbon 0.03. 
 420 stainless steel strip - S45 (U.S. AISI, ASTM) 
 420 corresponds to Chinese brands is 3Cr13 
 Characteristics and uses: the hardness after quenching than 2Cr13 high for a blade, nozzle. Valve seat, valve and so on. 
 Tensile strength σb (MPa): quenching and tempering, ≥ 735 
 Conditions yield strength σ0.2 (MPa): quenching and tempering, ≥ 540 
 Elongation δ5 (%): quenching and tempering, ≥ 12 
 Reduction of area ψ (%): quenching and tempering, ≥ 40 
 Impact energy Akv (J): quenching and tempering, ≥ 24 
 Hardness: Annealed, ≤ 235HB; quenching and tempering, ≥ 217HB 
 Heat treatment and microstructure specifications: 
 Heat treatment specifications: 1) annealing, 800 ~ 900 ℃ slow cooling or rapid cooling of about 750 ℃; 2) quenching, 920 ~ 980 ℃ oil cooling; 3) temper, 600 ~ 750 ℃ ??fast-cooling. 
 Microstructure: Organizing for the martensitic type. 
 420J2 stainless steel, steel imports 420J2 general spot as: 
 Rolling hard materials: (0.02mm --- 3.5mm) * (2mm-1520mm) * C 
 Sub-section material: (0.03mm-3mm) * (2mm-1520mm) * C; 
 Material: 301,304,304 L, 316,314,316 L, 316LH, 321,310 S, 420J2, 430, etc. 
 Sheet material: 0.09mm - 0.31mm 
 The company offers domestic and imported stainless steel varieties, complete specifications, special specifications can be customized processing. Division I and to provide original certificates, material certificates (chemical mechanical properties) and the like arguments! Please note that request! Users are welcome to inquire Order, the Company will be free shipping! Other materials, if necessary, good translation 
 Customers ordering materials, customers need to sample pieces of note, the MOQ: 50KG from (包邮) quantity excellent price, please call to order this material, our commitment to: quality assurance! Excellent and inexpensive price! Honesty! 

 More information for our good translation Metal Products (Shanghai) Company published reports, research must be fake! Do not imitate your colleagues to copy, or see your company name will list all the fake information, thank you. In order to avoid unnecessary trouble, please consciously abide by peers. This information is only available to customers for reference, do not provide peer! 
 (Good translation Metal Products (Shanghai) Co., Ltd. published) 
 420,420,420,420,420 420,420,420,420,420 420,420,420,420,420 420,420,420,420,420 420,420,420,420,420 420,420,420,420,420 420,420,420,420,420 420,420,420,420,420 420,420,420,420,420 420,420,420,420,420 420,420,420,420,420 420,420,420,420,420 420,420,420,420,420 420,420,420,420,420 420,420,420,420,420 420,420,420,420,420 420,420,420,420,420 420,420,420,420,420 420,420,420,420,420 420,420,420,420,420 420 420 420 420