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個(gè)人中心收藏查看我的收藏0有用+10播報(bào)討論上傳視頻合金結(jié)構(gòu)鋼是一種合金結(jié)構(gòu)鋼，屬于合金鋼類別，含有碳（C）、硅（Si）、錳（Mn）、鉻（Cr）、鉬（Mo）、鎳（Ni）等合金元素 [2-4]。該材料執(zhí)行GB/T3077—1999標(biāo)準(zhǔn)，對(duì)應(yīng)牌號(hào)為40CrNiMoA，統(tǒng)一數(shù)字代號(hào)A50403。具有高強(qiáng)度、高韌性和良好的淬透性，適用于制造截面尺寸較大且重要的調(diào)質(zhì)零件，如傳動(dòng)偏心軸、鍛壓機(jī)曲軸等 [2-3]。國產(chǎn)產(chǎn)品主要采用熱軋或冷軋工藝生產(chǎn)，規(guī)格覆蓋圓鋼、板材等多種形態(tài) [5-6]。其應(yīng)用領(lǐng)域涵蓋汽車、航空、機(jī)械制造等行業(yè)，用于生產(chǎn)齒輪、螺釘、軸類等零部件 [3-4]。類別合金結(jié)構(gòu)鋼 [2] [4]
執(zhí)行標(biāo)準(zhǔn)GB/T3077—1999 [2]
牌號(hào)40CrNiMoA/ [2]
抗拉強(qiáng)度≥980 MPa [3]
熱處理工藝調(diào)質(zhì)處理 [2]
應(yīng)用領(lǐng)域機(jī)械零件制造 [3]

目錄
1化學(xué)成分與標(biāo)準(zhǔn)2性能特點(diǎn)3應(yīng)用領(lǐng)域4生產(chǎn)工藝與規(guī)格5供應(yīng)商分布
化學(xué)成分與標(biāo)準(zhǔn)
播報(bào)編輯根據(jù)GB/T3077—1999標(biāo)準(zhǔn)，對(duì)應(yīng)牌號(hào)40CrNiMoA的化學(xué)成分包括碳0.37-0.44%、硅0.17-0.37%、錳0.50-0.80%、鉻0.60-0.90%、鉬0.15-0.25%、鎳1.25-1.65% [2]。BS970標(biāo)準(zhǔn)的結(jié)構(gòu)鋼碳含量范圍為0.36-0.44%，并含有錳、硅、鉻、鎳、鉬等元素 [3]。
性能特點(diǎn)
播報(bào)編輯經(jīng)調(diào)質(zhì)處理后，抗拉強(qiáng)度可達(dá)980 MPa以上，硬度達(dá)HRC 28-32 [2-3]。其高淬透性使其適用于截面尺寸較大和較重要的調(diào)質(zhì)零件 [4]，在高溫回火后仍保持較高的沖擊韌性 [2]。
應(yīng)用領(lǐng)域
播報(bào)編輯汽車工業(yè)：用于制造齒輪、軸等關(guān)鍵部件 [3] [5].航空工業(yè)：應(yīng)用于機(jī)械零件及高強(qiáng)度結(jié)構(gòu)件 [3-4].機(jī)械制造：生產(chǎn)傳動(dòng)偏心軸、鍛壓機(jī)曲軸等 [2-3].
生產(chǎn)工藝與規(guī)格
播報(bào)編輯采用熱軋或冷軋工藝生產(chǎn)，常見形態(tài)包括：圓鋼（直徑5mm至460mm） [6].板材（厚度0.1-135mm） [6].卷板（厚度0.1-11mm） [6].
供應(yīng)商分布
播報(bào)編輯中國上海、東莞等地多家企業(yè)供應(yīng)國產(chǎn)及進(jìn)口產(chǎn)品，包括上海昕翔實(shí)業(yè)有限公司、東莞市超飛模具鋼材有限公司等 [1] [3] [7]。供應(yīng)商多與國內(nèi)外鋼廠合作，提供多種規(guī)格產(chǎn)品 [5-6].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(bào)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(tái)?|?京ICP證030173號(hào)?京公網(wǎng)安備11000002000001號(hào)window.PAGE_DATA= 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