8620是什么材料
8620合金滲碳鋼,8620圓鋼,8620力學(xué)性能,8620現(xiàn)貨批發(fā),8620圓棒
8620化學(xué)成分,8620合金鋼材質(zhì),8620廠家,8620合金鋼價(jià)格
8620材料是一種一種常用的合金滲碳鋼,佳洲金屬直銷8620軸承鋼用途
8620特性及適用范圍: 
8620鋼材是一種常用的合金滲碳鋼,滲碳處理后表面有相當(dāng)高的硬度、耐磨性和接觸疲勞強(qiáng)度,同時(shí)心部還保留良好的韌性,能承受高的沖擊負(fù)荷。8620汽車軸承等耐沖擊、耐磨損零件的材料。 8620化學(xué)成份: 碳C:0.17~0.23(允許偏差:±0.02)硅Si:0.15~0.40(允許偏差:±0.03)錳Mn:0.60~0.90(允許偏差:±0.04)硫S:≤0.030(允許偏差:±0.005)磷P:≤0.030(允許偏差:±0.005)鉻Cr:0.35~0.65(允許偏差:±0.15)鎳Ni:0.40~0.70(允許偏差:±0.05)銅Cu:≤0.25(允許偏差:±0.05)鉬Mo:0.15~0.30(允許偏差:±0.02) 8620力學(xué)性能: 抗拉強(qiáng)度σb(MPa):≥1176(120)伸長(zhǎng)率δ5(%):≥9斷面收縮率ψ(%):≥45沖擊韌性值αkv(J/cm2):≥78(8)試樣尺寸:試樣尺寸為15mm熱處理規(guī)范及金相組織: 熱處理規(guī)范:淬火,第一次880±20℃,第二次790±20℃,油冷回火,150~200℃,空冷。金相組織:馬氏體。交貨狀態(tài): 熱軋或鍛制鋼材以熱軋(鍛)狀態(tài)或退火狀態(tài)交貨。冷拉鋼材以退火狀態(tài)交貨。 
 20Cr,5120,SCr420,35Cr,SCr435,37Cr4,5135,40Cr,SCr440,41Cr4,5140,15CrMo,SCM415,13CrMo4-5,20CrMo,SCM418,18CrMo4,25CrMo4,20CrMnMo,20MnCr5,4320H,4118H,8520H,20CrNiMo,805M20,20NCD2,8720,20CrNiMo2,1.6523,70M40,EN41B,B5F4K2,EN-19C,35CrMo,SCM435,4137,34CrMo4,1.7220,35CrMoV,31CrMoV9,42CrMo,SCM440,SCM420,SCM421,SCM425,SCM430,8620,SCM432,SCM445,SCM822,SCM445,4170,42CrMo4,1.7225,4140,40CrMnMo,42CrMoA,38CrMoAL,SACM645,34CrALMo5,41CrALMo7,1.8509,20CrMnTi,40CrNIMoA,SNCM432,4340,36CrNiMo4,1.6511,40CrH,4130,16Mn,T10,30CrMo,SCM430,16MnCr5,16MnCr5H,SMnC420,5120H,17CrNiMo6,34CrNiMo6,18CrNiMo7-6,50CrVA,SUP10,SUP9,6150,51CrV4,1.8759,60Si2Mn,65Mn,1065,1050,1070,9260,61SiCr7,1.7108,60Si2MnA,50CrV4,SK3,SK4,SK5,SK7,SUJ2,GCr15,52100,100Cr6,9Cr18MoV,SUS440C,GCr15SiMo,GCr15SiMn,SNCM420,SNCM220,S44004,X108CrMo17,SMn420,SMn433,SMn438,SMn443,SCr415,SCr420,SCr430,SCr440,SCr445,SNC236,SNC415,SNC631,SNC815,SNC836,SNCM415,SNCM431,SNCM21,SNCM420,SNCM220,SNCM439,SNCM447,SNCM616,SNCM625,SNCM630,SNCM815,SACM645
8620機(jī)械性能
  
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