Good translation Metal Products (Shanghai) spring steel companies (domestic spring steel / spring steel imports) 60Si2MnA spring steel / 60Si2MnA steel / 60Si2MnA steel bar 60Si2MnA coil / 60Si2MnA steel / 60Si2MnA pipe / 60Si2MnA wire (good translation Metal Products (Shanghai ) Co., Ltd.) 
 Outline 
 60si2mna strength hardness and elasticity hardenability steel is higher than 65, with a thermal sensitivity and tendency to temper brittleness, water quenching have to cracking tendencies. Cutting can still be annealed, cold plastic deformation is low, poor welding. By the middle of the plate spring load, diameter 7-20mm of coil spring and spring washer. Spring ring. High wear parts, such as grinding spindle of spring chuck. Precision machine screw. Cutter, spiral roller bearings on the rings. Railroad rails, etc. 
 Feature 
 60Si2MnA low content of alloying elements, than 60Si2Mn high hardenability, toughness, ductility and higher, a small tendency to decarburization, tempering good stability, thermal processing performance and low cost. 60si2mna spring steel, manganese improve hardenability, φ12mm the hardenability of steel oil can, a small surface decarburization tendency than silicon, the mechanical properties after heat treatment is better than carbon steel, but there are overheating and temper embrittlement susceptibility 
 Use 
 60Si2MnA production instead of heavy, medium and small cars, and other medium-sized cross-section of leaf spring leaf spring and coil spring. 60si2mna strength hardness and elasticity hardenability steel is higher than 65, with a thermal sensitivity and tendency to temper brittleness, water quenching have to cracking tendencies. Cutting can still be annealed, cold plastic deformation is low, poor welding. By the middle of the plate spring load, diameter 7-20mm of coil spring and spring washer. Spring ring. High wear parts, such as grinding spindle of spring chuck. Precision machine screw. Cutter, spiral roller bearings on the rings. Railroad rails, etc. 
 Physical properties 
 ● Chemical Composition: 
 Carbon C: 0.52 ~ 0.60 
 Si Si: 1.5 ~ 2.0 
 Manganese Mn: 1.00 ~ 1.30 Sulfur S: ≤ 0.035 
 Phosphorus P: ≤ 0.035 
 Chromium Cr: ≤ 0.35 
 Ni-Ni: ≤ 0.35 
 Copper Cu: ≤ 0.25 
 Vanadium V: 0.08 ~ 0.16 
 Boron B: 0.0005 ~ 0.0035 
 Mechanical properties 
 Tensile strength σb (MPa): ≥ 1372 (140) 
 Yield strength σs (MPa): ≥ 1225 (125) 
 Elongation δ10 (%): ≥ 5 
 Reduction of area ψ (%): ≥ 30 
 Hardness: hot, ≤ 321HB; cold-drawn + heat treatment, ≤ 321HB 
 Standard heat treatment and microstructure 
 Standard heat treatment: quenching 860 ℃ ± 20 ℃, oil cooling; tempering 460 ℃ ± 50 ℃ (special needs, ± 30 ℃). 
 Microstructure: Tempered sorbite. 
 AC1-755, Ac3-770, Ms-300 ~ 305, 
 Annealing; 750C-furnace cold-HBS ≤ 222 
 Normalizing; 830 ~ 860C-cooled-HBS ≤ 302 
 Quenching; 870C-oil-HRC> 61 
 Temperature hardness after tempering HRC: 150C-61, 200C-60, 300C-56, 400C-51, 500C-43, 550C-38, 600C-33, 650C-29 
 Commonly used tempering temperature 430 ~ 480C, water or air, HRC45 ~ 50 
 The following are the parameters of car leaf spring heat 
 Quenching time and the thickness of insulation: mm / min, 6.5 / 2,8 / 3,8.5-10 / 4,12 / 5 
 Tempering holding time and thickness: mm / min, <10/25-30 ,10-15 / 30-35,15-20 / 40-45,20-25 / 45-50. 
 ● Delivery status: hot-rolled steel to heat treatment or heat treatment delivery, like cold-drawn steel to heat treatment. 
 The company offers domestic and imported varieties of spring steel material, 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) 
 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA 60Si2MnA