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.block-content-new-icon{height:7px;left:52px;position:absolute;top:3px}網(wǎng)頁(yè)新聞貼吧知道網(wǎng)盤圖片視頻地圖文庫(kù)資訊采購(gòu)百科百度首頁(yè)登錄注冊(cè)進(jìn)入詞條全站搜索幫助首頁(yè)秒懂百科特色百科知識(shí)專題加入百科百科團(tuán)隊(duì)權(quán)威合作個(gè)人中心收藏查看我的收藏0有用+10播報(bào)討論上傳視頻彈簧鋼彈簧鋼硅和錳提高彈性強(qiáng)度和屈強(qiáng)比，提高淬透性，抗回火穩(wěn)定性和抗松弛穩(wěn)定性，過(guò)熱敏感性也較小，但脫碳傾向較大，尤其是硅與碳含量較高時(shí)，碳易于石墨化，使鋼變脆。彈簧鋼用作汽車、拖拉機(jī)和機(jī)車上的減振板簧和螺旋彈簧、氣缸安全閥簧，還可用作250℃以下使用的耐熱彈簧。中文名標(biāo) 準(zhǔn)：GB/T 1222-1984碳 C：0.52～0.60抗拉強(qiáng)度σb (MPa)：≥1274(130)屈服強(qiáng)度σs (MPa)：≥1176(120)伸長(zhǎng)率δ10 (%)：≥6目錄1產(chǎn)品簡(jiǎn)介2化學(xué)成分3力學(xué)性能4熱處理工藝5對(duì)應(yīng)牌號(hào)產(chǎn)品簡(jiǎn)介播報(bào)編輯材料名稱： 標(biāo)準(zhǔn)：GB/T 1222-1984●特性及適用范圍：化學(xué)成分播報(bào)編輯●化學(xué)成份：碳 C ：0.52～0.60硅 Si：1.50～2.00錳 Mn：0.60～0.90硫 S ：≤0.035磷 P ：≤0.035鉻 Cr：≤0.35鎳 Ni：≤0.35銅 Cu：≤0.25力學(xué)性能播報(bào)編輯●力學(xué)性能：抗拉強(qiáng)度 σb (MPa)：≥1274(130)屈服強(qiáng)度 σs (MPa)：≥1176(120) [1]伸長(zhǎng)率 δ10 (%)：≥6斷面收縮率 ψ (%)：≥30硬度 ：熱軋,≤302HB;冷拉+熱處理,≤321HB熱處理工藝播報(bào)編輯●熱處理規(guī)范及金相組織：熱處理規(guī)范：淬火870℃±20℃,油冷; 回火480℃±50℃(特殊需要時(shí),±30℃)。金相組織：回火屈氏體?！窠回洜顟B(tài)：熱軋鋼材以熱處理或不熱處理狀態(tài)交貨，冷拉鋼材以熱處理狀態(tài)交貨。對(duì)應(yīng)牌號(hào)播報(bào)編輯對(duì)應(yīng)美國(guó)牌號(hào)：9260對(duì)應(yīng)日本牌號(hào)：SUP6對(duì)應(yīng)德國(guó)牌號(hào)：55Si7對(duì)應(yīng)英國(guó)牌號(hào)：251II60對(duì)應(yīng)法國(guó)牌號(hào)：56SC7對(duì)應(yīng)國(guó)際標(biāo)準(zhǔn)牌號(hào)：56SiCr7新手上路成長(zhǎng)任務(wù)編輯入門編輯規(guī)則本人編輯我有疑問(wèn)內(nèi)容質(zhì)疑在線客服官方貼吧意見(jiàn)反饋投訴建議舉報(bào)不良信息未通過(guò)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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(%)：≥6介紹材料名稱： 55Si2Mn標(biāo)準(zhǔn)：GB/T 1222-1984●特性及適用范圍：化學(xué)成分●化學(xué)成份：碳 C ：0.52～0.60硅 Si：1.50～2.00錳 Mn：0.60～0.90硫 S ：≤0.035磷 P ：≤0.035鉻 Cr：≤0.35鎳 Ni：≤0.35銅 Cu：≤0.25力學(xué)性能●力學(xué)性能：抗拉強(qiáng)度 σb (MPa)：≥1274(130)屈服強(qiáng)度 σs (MPa)：≥1176(120)伸長(zhǎng)率 δ10 (%)：≥6斷面收縮率 ψ (%)：≥30硬度 ：熱軋,≤302HB;冷拉+熱處理,≤321HB熱處理工藝●熱處理規(guī)范及金相組織：熱處理規(guī)范：淬火870℃±20℃,油冷; 回火480℃±50℃(特殊需要時(shí),±30℃)。金相組織：回火屈氏體?！窠回洜顟B(tài)：熱軋鋼材以熱處理或不熱處理狀態(tài)交貨，冷拉鋼材以熱處理狀態(tài)交貨。對(duì)應(yīng)牌號(hào)對(duì)應(yīng)美國(guó)牌號(hào)：9260對(duì)應(yīng)日本牌號(hào)：SUP6對(duì)應(yīng)德國(guó)牌號(hào)：55Si7對(duì)應(yīng)英國(guó)牌號(hào)：251II60對(duì)應(yīng)法國(guó)牌號(hào)：56SC7對(duì)應(yīng)國(guó)際標(biāo)準(zhǔn)牌號(hào)：56SiCr7
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