Good translation of the Metal Products (Shanghai) Spring Steel Metal Products (Shanghai (China Spring Steel / import spring steel) 60SI2MN spring steel / 60SI2MN steel plate / 60SI2MN steel bars 60SI2MN coil / 60SI2MN strip / 60SI2MN steel pipe / 60SI2MN wire (good translation ) Co., Ltd.) 
 ● 60Si2Mn implementation of standards: 
 60Si2Mn spring steel 
 American Standard: A29M: 2005 
 International standards: the ISO 683-14:2004 
 European standards: EN 10089:2002 
 ● 60Si2Mn heat treatment: 
 Tempering and quenching, subcritical quenching and high temperature tempering, deformation heat treatment process. Using this method can effectively improve the strength and toughness and service life of the 60Si2Mn spring steel. 
 60Si2Mn a spring steel, suitable for the production of automobile leaf spring. 
 60Si2Mn spring steel heat treatment temperature tempering and quenching, subcritical quenching and high temperature tempering, deformation heat treatment process. Using this method can effectively improve the strength and toughness and service life of the 60Si2Mn spring steel. 
 ● 60Si2Mn heat treatment process: 
 AC1, 755, Ac3 = 810, Ar1 = 700, Ar3 = 770, Ms-300 305, 
 Annealing; 750C,-furnace cold-HBS was ≤ 222 
 Normalizing; 830 ~ 860C-air-cooled-HBS was ≤ 302 
 Quenching; 870C-oil-of HRC> 61 
 Temperature tempering the hardness value of HRC: 150C-61 200C-60 300C-56 400C-51 500C-43 550C-38 600C-33 650C-29 
 Commonly used in the tempering temperature of 430 to 480C, water or air, HRC45 ~ 50 
 The following is a heat treatment parameters of automobile leaf spring 
 Quenching heat insulation thickness: mm / min, 6.5 / 2,8 / 3,8.5-10 / 4,12 / 5 
 Tempering Time and thickness: mm / min, <10/25-30 ,10-15 / 30-35,15-20 / 40-45,20-25 / 45-50. 
 The ● 60Si2Mn density 7.85g/cm3. 60Si2Mn is the application of a wide range of silico-manganese spring steel, strength, flexibility and hardenability sexual slightly higher than that of 55Si2Mn. Suitable for railroad cars, automobile and tractor industries produced to withstand a larger load of the flat spring or diameter less than 30mm coil spring 
 ● 60Si2Mn specification of heat treatment: hardening 870 ° C ± 20 ° C, oil cooling; tempering 480 ° C ± 50 ° C (special needs, ± 30 ° C). 
 The ● microstructure: Troostite. 
 Delivery status: the state of hot-rolled steel to heat treatment or no heat treatment delivery, cold drawn steel to heat treatment delivery. 
 Hot rolled delivery specifications: 2.0 ~ 18.0mm, annealing and annealed condition. Cold-rolled delivery specifications: 0.3 ~ 4.3mm (steel) 
 ● chemical composition: 
 Carbon C: 0.56 ~ 0.6 
 Silicon Si: 1.50 ~ 2.00 
 Mn Mn: 0.60 ~ 0.90 
 Sulfur S: ≤ 0.035 
 Phosphorus P: ≤ 0.035 
 Chromium Cr: ≤ 0.35 
 Ni - Ni: ≤ 0.35 
 Copper Cu: ≤ 0.25 
 The company provides domestic and imported spring steel varieties, complete specifications, special specifications can be customized processing. Division I and the original certificates, material certificates (chemical composition, mechanical properties) of the class parameters Please pay attention to obtain a copy of the public are welcome to the user to inquire Order, the Company will be free shipping! Other materials, if necessary, good translation 
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