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3077-1988標準的合金結(jié)構(gòu)鋼，屬于滲碳軸承鋼類別。主要應用于汽車、機械制造、壓力容器等領域，適用于制造非腐蝕性介質(zhì)中工作溫度低于250℃的高壓管、緊固件及較高級滲碳零件（如齒輪、軸等）。該材料具有較高淬透性、無回火脆性、焊接性良好及冷裂傾向小的特點，同時具備優(yōu)良的可切削性和冷應變塑性。其化學成分以碳（0.17-0.23%）、鉻（0.35-0.65%）、鉬（0.08-0.15%）為主要合金元素，嚴格控制硫、磷含量（均≤0.030%)。典型力學性能包括抗拉強度≥885MPa、屈服強度≥685MPa、伸長率≥12%，硬度≤197HB。熱處理規(guī)范為880℃水/油冷淬火后進行500℃回火，交貨狀態(tài)可選擇正火、退火或高溫回火處理。中文名牌 號標 準GB/T 3077-1988特 性淬透性較高，無回火脆性目錄1特性及適用2熱處理3化學成份特性及適用播報編輯淬透性較高，無回火脆性，焊接性相當好，形成冷裂的傾向很小，可切削性及冷應變塑性良好。一般在調(diào)質(zhì)或滲碳淬火狀態(tài)下使用，用于制造在非腐蝕性介質(zhì)及工作溫度低于 250℃、含有氮氫混合物的介質(zhì)中工作的高壓管及各種緊固件、較高級的滲碳零件，如齒輪、軸等?？估瓘姸?σb (MPa)：≥885(90)屈服強度 σs (MPa)：≥685(70)伸長率 δ5 (%)：≥12斷面收縮率 ψ (%)：≥50沖擊功 Akv (J)：≥78沖擊韌性值 αkv (J/cm2)：≥98(10)硬度 ：≤197HB試樣尺寸：試樣毛坯尺寸為15mm熱處理播報編輯熱處理規(guī)范及金相組織：熱處理規(guī)范：淬火880℃,水冷、油冷;回火500℃,水冷、油冷。交貨狀態(tài)：以熱處理（正火、退火或高溫回火）或不熱處理狀態(tài)交貨，交貨狀態(tài)應在合同中注明。熱處理和力學性能：鋼號: 試樣毛坯尺寸/mm: 15熱處理|淬火|加熱溫度/℃|第一次淬火: 880熱處理|淬火|加熱溫度/℃|第二次淬火: —熱處理|淬火|冷卻劑: 水、油熱處理|回火|加熱溫度/℃: 500熱處理|回火|冷卻劑: 水、油力學性能|抗拉強度σb/MPa|≥: 885力學性能|屈服點σs/MPa|≥: 685力學性能|伸長率δ5(%)|≥: 12力學性能|面縮率ψ(%)|≥: 50力學性能|沖擊吸收功AKV/J|≥: 78交貨狀態(tài)硬度HBS|≥: 197化學成份播報編輯碳C ：0.17～0.23(答應偏差:±0.02)矽Si：0.20～0.35(答應偏差:±0.03)錳Mn：0.65～0.95(答應偏差:±0.04)硫S ：≤0.030(答應偏差: 0.005)磷P ：≤0.030(答應偏差: 0.005)鉻Cr：0.35～0.65(答應偏差:±0.15)銅Cu：≤0.25(答應偏差：+0.05)鉬Mo：0.08～0.15(答應偏差:±0.02)新手上路成長任務編輯入門編輯規(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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(J)：≥78沖擊韌性值 αkv (J/cm2)：≥98(10)硬度 ：≤197HB用途處理規(guī)范熱處理規(guī)范：淬火880℃,水冷、油冷;回火500℃,水冷、油冷?！窠回洜顟B(tài)：以熱處理（正火、退火或高溫回火）或不熱處理狀態(tài)交貨，交貨狀態(tài)應在合同中注明?！?0CrMo熱處理：20CrMo材料屬于低碳合金結(jié)構(gòu)鋼,適合滲碳淬火處理;熱處理規(guī)范:淬火880℃,水冷、油冷;回火500℃,水冷、油冷.●20CrMo硬度20CrMo淬火(860-880℃水或油冷),加低溫(150--200℃)回火,20CrMo硬度為HRC32-33●熱處理和力學性能：鋼號: 20CrMo試樣毛坯尺寸/mm: 15熱處理|淬火|加熱溫度/℃|第一次淬火: 880熱處理|淬火|加熱溫度/℃|第二次淬火: —熱處理|淬火|冷卻劑: 水、油熱處理|回火|加熱溫度/℃: 500熱處理|回火|冷卻劑: 水、油力學性能|抗拉強度σb/MPa|≥: 885力學性能|屈服點σs/MPa|≥: 685力學性能|伸長率δ5(%)|≥: 12力學性能|面縮率ψ(%)|≥: 50力學性能|沖擊吸收功AKV/J|≥: 78交貨狀態(tài)硬度HBS|≥: 197
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