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Ω·mm2/m）。其熱處理工藝包含軟化退火（680℃-720℃緩冷）、淬火（840℃-880℃水/油冷）和回火（540℃-680℃空冷）。鍛造溫度范圍為1100℃-850℃，熱膨脹系數(shù)隨溫度升高遞增，20℃-400℃區(qū)間為13.9×10??/℃。材料AC1和AC3臨界點分別為775℃、835℃，適用于需要調(diào)質(zhì)處理的機械部件。中文名密 度（kg/dm3) 7.73彈性模量（MPa) 210鍛造溫度1100℃-850℃。目錄1標(biāo)準(zhǔn)2參數(shù)?化學(xué)成分?材料參數(shù)?物理參數(shù)?機械性能3熱處理?軟化退火?硬化標(biāo)準(zhǔn)播報編輯EN 10085 1.8519DIN 17211 1.8519參數(shù)播報編輯化學(xué)成分碳:0.27~0.34硅:≤0.40錳:0.40~0.70硫:≤0.035磷:≤0.025鉻:2.30~2.70鉬:0.15~0.25釩:0.10~0.20材料參數(shù)交貨硬度：245~255 HB。鍛造溫度：1100℃-850℃。物理參數(shù)密度(kg/dm3) ：7.73彈性模量(MPa): 21020℃電阻(Ω mm2/m) :0.1920℃導(dǎo)熱率(W/m K) :43.020℃熱容(J/kg K) :441退火條件下的熱膨脹系數(shù):(1/1000000)20 – 100 ℃ 11.520 – 200 ℃ 12.520 – 300 ℃ 13.320 – 400 ℃ 13.9機械性能直徑 (mm)≥ 16 ≤ 40> 40 ≤ 100> 100 ≤ 160> 160 ≤ 250屈服強度 (MPa)900800700650拉伸強度 (MPa)1100-13001000-1200900-1100850-1050伸長率 (L0= 5 d0)(%)9101112擺錘沖擊試驗 ISO-V (J)25303540熱處理播報編輯Ms： 360℃AC1： 775℃AC3： 835℃軟化退火軟化退火在680℃-720℃的溫度下進行，并緩慢冷卻。硬化在840℃-870℃的溫度下，水中淬火。在850℃-880℃的溫度下，油中淬火。回火在540℃-680℃的溫度下進行，在空氣中冷卻。新手上路成長任務(wù)編輯入門編輯規(guī)則本人編輯我有疑問內(nèi)容質(zhì)疑在線客服官方貼吧意見反饋投訴建議舉報不良信息未通過詞條申訴投訴侵權(quán)信息封禁查詢與解封?2025?Baidu?使用百度前必讀?|?百科協(xié)議?|?隱私政策?|?百度百科合作平臺?|?京ICP證030173號?京公網(wǎng)安備11000002000001號window.PAGE_DATA= 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