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[7]。其化學(xué)成分中鉛含量為0.15%～0.35% [3] [5-6]，配合硫、磷等元素共同改善切削加工性 [4] [6]。執(zhí)行標(biāo)準(zhǔn)GB/T 8731-1988 [4-5] [7]材料密度7.85 g/cm3 [1] [4-5]交貨狀態(tài)熱軋/冷拉 [1] [5]切削性能優(yōu)良 [6-7]鉛含量0.15%～0.35% [3] [5-6]應(yīng)用領(lǐng)域機(jī)械制造 [2] [7]目錄1材料特性2化學(xué)成分3應(yīng)用領(lǐng)域4執(zhí)行標(biāo)準(zhǔn)與加工材料特性播報(bào)編輯通過添加鉛元素顯著改善切削加工性能 [3] [6-7]，切削時形成斷屑效果且刀具磨損小 [2] [4]。其力學(xué)性能各向同性，縱向與橫向性能差異不明顯 [4] [7]，熱軋狀態(tài)下抗拉強(qiáng)度可達(dá)390～540MPa，冷拉狀態(tài)強(qiáng)度隨加工程度增加 [1] [5]。化學(xué)成分播報(bào)編輯碳（C）：0.08%～0.16% [3] [5] [7]硅（Si）：≤0.15% [3] [5] [7]錳（Mn）：0.70%～1.10% [3] [5] [7]硫（S）：0.15%～0.25% [3] [5] [7]磷（P）：0.05%～0.10% [3] [5] [7]鉛（Pb）：0.15%～0.35% [3] [5-6]應(yīng)用領(lǐng)域播報(bào)編輯主要用于制造：1.標(biāo)準(zhǔn)件：螺絲、螺母、管接頭、銷釘、軸、火花塞外套 [5] [7]2.機(jī)械零件：軸類、銷釘、螺栓、螺母、管接頭及火花塞外套 [1] [5]3.精密部件：儀表外殼、火花塞外套 [5] [7]執(zhí)行標(biāo)準(zhǔn)與加工播報(bào)編輯根據(jù)GB/T 8731-1988標(biāo)準(zhǔn)生產(chǎn) [4-5] [7]，可經(jīng)熱軋或冷拉工藝成型 [1] [5]。熱軋材料常用于一般結(jié)構(gòu)件 [1] [4]，冷拉材料適用于高尺寸精度零件 [1] [5]。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?|?京ICP證030173號?京公網(wǎng)安備11000002000001號window.PAGE_DATA= 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G12134；英國BS -；法國NF AD37Pb/10Pb2/10PbF2；德國DIN 10SPb20；日本JIS SUM22L；國際ISO 11SMnPb28。
滬ICP備2021035645號
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