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.block-item .block-title{color:#333;font-size:20px;line-height:1.5}.page-footer-content .block-item .block-title svg{color:#aaa;margin-right:10px}.page-footer-content .block-item .block-content{padding:5px 0 0 30px;width:210px}.page-footer-content .block-item .block-content>a{color:#666;cursor:pointer;float:left;margin-bottom:5px;position:relative;-webkit-text-decoration:none;text-decoration:none;width:90px}.page-footer-content .block-item .block-content>a:hover{color:#338de6;-webkit-text-decoration:none;text-decoration:none}.page-footer-content .block-item .block-content .block-content-new-icon{height:7px;left:52px;position:absolute;top:3px}網(wǎng)頁新聞貼吧知道網(wǎng)盤圖片視頻地圖文庫資訊采購百科百度首頁登錄注冊(cè)進(jìn)入詞條全站搜索幫助首頁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20CrMnTi播報(bào)討論上傳視頻滲碳鋼收藏查看我的收藏0有用+1020CrMnTi是滲碳鋼，滲碳鋼通常為含碳量為0.17%-0.24%的低碳鋼。汽車上多用其制造傳動(dòng)齒輪，是中淬透性滲碳鋼中Cr Mn Ti 鋼，其淬透性較高，在保證淬透情況下，特別是具有較高的低溫沖擊韌性。20CrMnTi表面滲碳硬化處理用鋼。良好的加工性，加工變形微小，抗疲勞性能相當(dāng)好。主要用途有：用于軸類，活塞類零配件以及汽車，飛機(jī)各種特殊零件部位。中文名20CrMnTi別 名20CrMnTi無縫鋼管執(zhí)行標(biāo)準(zhǔn)GB/T 3077-2015特 性具有較高的強(qiáng)度和韌性用 途齒輪，軸類目錄1簡要介紹2化學(xué)成分3力學(xué)性能4鋼廠規(guī)格5熱處理規(guī)范6表示方法簡要介紹播報(bào)編輯●特性及適用范圍：是性能良好的滲碳鋼，淬透性較高，經(jīng)滲碳淬火后具有硬而耐磨的表面與堅(jiān)韌的心部，具有較高的低溫沖擊韌性，焊接性中等，正火后可切削性良好。用于制造截面小于30mm的承受高速、中等或重載荷、沖擊及摩擦的重要零件，如齒輪、齒圈、齒輪軸、十字頭等。是18CrMnTi的代用鋼，廣泛用作滲碳零件，在汽車.拖拉機(jī)工業(yè)用于截面在30mm以下，承受高速.中或重負(fù)荷以及受沖擊.摩擦的重要滲碳零件，如齒輪、軸、齒圈、齒輪軸、滑動(dòng)軸承的主軸、十字頭、爪形離合器、蝸桿等。化學(xué)成分播報(bào)編輯●化學(xué)成份碳C：0.17～0.2320CrMnTi硅Si：0.17～0.37錳Mn：0.80～1.10鉻Cr：1.00～1.30硫S： 優(yōu)質(zhì)鋼不大于0.030高級(jí)優(yōu)質(zhì)鋼不大于0.020特級(jí)優(yōu)質(zhì)鋼不大于0.010磷P： 優(yōu)質(zhì)鋼不大于0.030高級(jí)優(yōu)質(zhì)鋼不大于0.020特級(jí)優(yōu)質(zhì)鋼不大于0.020鎳Ni：優(yōu)質(zhì)鋼不大于0.30高級(jí)優(yōu)質(zhì)鋼不大于0.30特級(jí)優(yōu)質(zhì)鋼不大于0.30銅Cu（注1）：優(yōu)質(zhì)鋼不大于0.30高級(jí)優(yōu)質(zhì)鋼不大于0.25特級(jí)優(yōu)質(zhì)鋼不大于0.25鈦Ti：0.04～0.10注1：熱壓力加工用鋼的銅含量不大于0.2%力學(xué)性能播報(bào)編輯20CrMnTi●力學(xué)性能：抗拉強(qiáng)度σb (MPa)：≥1080(110)屈服強(qiáng)度σs (MPa)：≥835(85)伸長率δ5 (%)：≥10齒輪鋼成品圖斷面收縮率ψ (%)：≥45沖擊功Akv (J)：≥55沖擊韌性值αkv (J/cm2)：≥69(7)硬度：≤217HB試樣尺寸：試樣毛坯尺寸為15mm●20CrMnTi密度:7.8×103kg/m3彈性模量:207GPa泊松比:0.25導(dǎo)熱率:1.26×10-5（1/℃）鋼廠規(guī)格播報(bào)編輯冷拉光圓Ф3.0-100重特20CrMnTi熱軋圓鋼Ф100-200重特20CrMnTi熱軋圓鋼Ф20-100重特20CrMnTi熱軋圓鋼Ф200-400重特20CrMnTi熱處理規(guī)范播報(bào)編輯●熱處理規(guī)范及金相組織：熱處理規(guī)范：淬火:第一次880℃,第二次870℃,油冷;回火200℃,水冷、空冷。詳細(xì)的熱處理規(guī)范與力學(xué)性能:20CrMnTi圓鋼試樣毛坯尺寸/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: 870熱處理|淬火|冷卻劑: 油熱處理|回火|加熱溫度/℃: 200熱處理|回火|冷卻劑: 水、空力學(xué)性能|抗拉強(qiáng)度σb/MPa|≥: 1080力學(xué)性能|屈服點(diǎn)σs/MPa|≥: 850力學(xué)性能|伸長率δ5(%)|≥: 10力學(xué)性能|面縮率ψ(%)|≥: 45力學(xué)性能|沖擊吸收功AKV/J|≥: 55交貨狀態(tài)硬度HBS|≥: 217●熱處理規(guī)范及金相組織：熱處理規(guī)范：淬火:第一次880℃,第二次870℃,油冷;回火200℃,水冷、空冷；金相組織：回火馬氏體?！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(yīng)在合同中注明?！?0CrMnTi的密度及彈性模量：密度:7.8×103kg/m3彈性模量:207GPa泊松比:0.25導(dǎo)熱率:1.26×10-51/℃●20CrMnTi正火20CrMnTi正火，20CrMnTi鋼材在加熱860℃保溫速冷到680℃保溫后空冷的等溫正火工藝與加熱 960℃保溫后霧冷的高溫正火工藝，兩種工藝相對(duì)比不同之處及作用。表示方法播報(bào)編輯① 鋼號(hào)開頭的兩位數(shù)字表示鋼的碳含量，以平均碳含量的萬分之幾表示，如40Cr、25Cr2MoVA合金管。②鋼中主要合金元素，除個(gè)別微合金元素外，一般以百分之幾表示。當(dāng)平均合金含量小于1.5%時(shí)，鋼號(hào)中一般只標(biāo)出元素符號(hào)，而不標(biāo)明含量，但在特殊情況下易致混淆者，在元素符號(hào)后亦可標(biāo)以數(shù)字"1"，例如鋼號(hào)"12CrMoV"和"12Cr1MoV"，前者鉻含量為0.4-0.6%，后者為0.9-1.2%，其余成分全部相同。當(dāng)合金元素平均含量≥1.5%、≥2.5%、≥3.5%……時(shí)，在元素符號(hào)后面應(yīng)標(biāo)明含量，可相應(yīng)表示為2、3、4……等。例如18Cr2Ni4WA。③鋼中的釩V、鈦Ti、鋁AL、硼B(yǎng)、稀土RE等合金元素，均屬微合金元素，雖然含量很低，仍應(yīng)在鋼號(hào)中標(biāo)出。例如20MnVB鋼中。釩為0.07-0.12%，硼為0.001-0.005%。④高級(jí)優(yōu)質(zhì)鋼應(yīng)在鋼號(hào)最后加"A"，以區(qū)別于一般優(yōu)質(zhì)鋼。⑤專門用途的合金結(jié)構(gòu)鋼，鋼號(hào)冠以（或后綴）代表該鋼種用途的符號(hào)。例如鉚螺專用的30CrMnSi鋼，鋼號(hào)表示為ML30CrMnSi。合金管與無縫管兩者既有關(guān)系又有區(qū)別，不能混為一談。合金管是鋼管按照生產(chǎn)用料（也就是材質(zhì)）來定義的，顧名思義就是合金做的管子；而無縫管是鋼管按照生產(chǎn)工藝（有縫無縫）來定義的，區(qū)別于無縫管的就是有縫管，包括直縫焊管和螺旋管。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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鋼，其淬透性較高，在..."}window.__abbaidu_2020_subidgetf||(window.__abbaidu_2020_subidgetf=function(){return"01000000"}) 詳細(xì)信息 材質(zhì)20CrMnTi規(guī)格14-300產(chǎn)地/廠家寶特分類優(yōu)特鋼 齒輪鋼 齒輪鋼20CrMnTi（H）鋼號(hào) 規(guī)格 產(chǎn)地 可供數(shù)量（噸） 交貨地20CrMnTi（H） 10-14圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 15圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 16圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 26圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 28圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 30圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 32圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 35圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 38圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 40圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 45圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 48圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 30圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 52圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 55圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 60圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 65圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 70圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 85圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 90圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 95圓 大冶/寶鋼/本鋼 30噸 上海寶山區(qū)20CrMnTi（H） 100圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 105圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 140圓 大冶/寶鋼 30噸 上海寶山區(qū)20CrMnTi（H） 150-200圓 大冶/寶鋼 30噸 上海寶山區(qū)
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