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個(gè)人中心高碳鉻軸承鋼播報(bào)討論上傳視頻鋼材類別展開2個(gè)同名詞條收藏查看我的收藏0有用+10同義詞GCr15（GCr15）一般指高碳鉻軸承鋼（鋼材類別）高碳鉻軸承鋼，鋼材。絕大多數(shù)軸承套圈和滾動(dòng)體都采用專用鋼材制造。用高碳鉻軸承鋼（GCr15和GCr15SiMn與ZGCr15和ZGCr15SiMn）制造套圈和滾動(dòng)體，其零件硬度高。中文名高碳鉻軸承鋼
外文名High-carbon chromium bearing steel
別    名GCr15
采    用專用鋼材制造
化學(xué)式GCr15和GCr15SiMn
優(yōu)    點(diǎn)高的硬度和耐磨性高的尺寸穩(wěn)定性，熱處理變形小

目錄
1基本信息2零件硬度3標(biāo)準(zhǔn)簡介4目錄5其他信息
基本信息
播報(bào)編輯標(biāo)準(zhǔn)號(hào)Standard No.GB/T 18254-2016中文標(biāo)準(zhǔn)名稱Standard Title in Chinese高碳鉻軸承鋼英文標(biāo)準(zhǔn)名稱Standard Title in EnglishHigh-carbon chromium bearing steel發(fā)布日期Issuance Date2016-08-09實(shí)施日期Execute Date2017-07-01首次發(fā)布日期First Issuance Date2000-11-17標(biāo)準(zhǔn)狀態(tài)Standard State現(xiàn)行復(fù)審確認(rèn)日期Review Affirmance Date-計(jì)劃編號(hào)Plan No.-代替國標(biāo)號(hào)Replaced StandardGB/T 18254-2002被代替國標(biāo)號(hào)Replaced Standard-廢止時(shí)間Revocatory Date-采用國際標(biāo)準(zhǔn)號(hào)Adopted International Standard No.-采標(biāo)名稱Adopted International Standard Name-采用程度Application Degree-采用國際標(biāo)準(zhǔn)Adopted International Standard無國際標(biāo)準(zhǔn)分類號(hào)(ICS)77.140.20中國標(biāo)準(zhǔn)分類號(hào)(CCS)H40標(biāo)準(zhǔn)類別Standard Sort產(chǎn)品標(biāo)準(zhǔn)頁碼Number of Pages38標(biāo)準(zhǔn)價(jià)格(元)Price(￥)39主管部門Governor中國國家標(biāo)準(zhǔn)化委員會(huì)歸口單位Technical Committees全國鋼標(biāo)準(zhǔn)化技術(shù)委員會(huì)起草單位Drafting Committee寶鋼集團(tuán)上海五鋼有限公司
零件硬度
播報(bào)編輯用GCr15和ZGCr15材料制造的套圈和滾子為HRc61~65，鋼球?yàn)镠Rc62~66；用GCr15SiMn和ZGCr15SiMn材料制造的套圈和滾子為HRc60~64,鋼球?yàn)镠Rc60~66。用高碳鋼鉻軸承鋼制造的軸承一般適用于工作溫度為-40~130度范圍，油與脂潤滑正常?？蓾M足一般機(jī)械的要求。高碳鉻軸承鋼軸承零件經(jīng)高溫回過火后，其適應(yīng)工作溫度可高達(dá)250度。
標(biāo)準(zhǔn)簡介
播報(bào)編輯本標(biāo)準(zhǔn)規(guī)定了高碳鉻軸承鋼的定貨內(nèi)容、尺寸、外形、技術(shù)要求、試驗(yàn)方法、檢驗(yàn)規(guī)則、包裝、標(biāo)志及質(zhì)量證明書。本標(biāo)準(zhǔn)適用于制作軸承套圈和滾動(dòng)體用高碳鉻軸承鋼熱軋或鍛制圓鋼、盤條、冷拉（軋）圓鋼（直條或盤條）和鋼管。連鑄鋼不推薦做鋼球用鋼。經(jīng)供需雙方協(xié)商，也可供應(yīng)其他品種、規(guī)格的鋼材、鋼坯，具體要求應(yīng)在合同中注明。
目錄
播報(bào)編輯高碳鉻軸承鋼1 范圍2 規(guī)范性引用文件3 訂貨內(nèi)容4 尺寸、外形4.1 尺寸4.2 外形5 技術(shù)要求5.1 牌號(hào)和化學(xué)成分5.2 冶煉方式5.3 交貨狀態(tài)5.4 鋼材硬度5.5 頂鍛5.6 低倍組織和斷口5.7 非金屬夾雜物5.8 顯微孔隙5.9 顯微組織5.10 碳化物不均勻性5.11 脫碳層5.12 表面質(zhì)量6 試驗(yàn)方法7 檢驗(yàn)規(guī)則8 標(biāo)志、包裝和質(zhì)量證明書附錄A （規(guī)范性附錄）高碳鉻軸承鋼標(biāo)準(zhǔn)圖譜
其他信息
播報(bào)編輯軸承鋼被煉鋼界人士稱為鋼中之王，高碳鉻軸承鋼是軸承鋼中有一個(gè)大的種類，為制造軸承和軸承零件的最常用鋼種。高碳鉻軸承鋼中最常用的是GCr15和GCr15SiMn,其中前一種是中國軸承業(yè)用量最多的。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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簡介 GCr15是指一種合金含量較少的高碳鉻軸承鋼，經(jīng)過淬火加低溫回火后具有較高的硬度、均勻的組織、良好的耐磨性、高的接觸疲勞性能。應(yīng)用領(lǐng)域有機(jī)床的滾珠絲桿、渦輪噴氣發(fā)動(dòng)機(jī)噴嘴的噴口、柱塞、活門、襯套等。概述該鋼冷加工塑性中等，切削性能一般，焊接性能差，對(duì)形成白點(diǎn)敏感性能大，有回火脆性。GCr15是一種最常用的高碳鉻軸承鋼，具有較高的淬透性，熱處理后可獲得高而均勻的硬度。耐磨性優(yōu)于GCr9，接觸疲勞強(qiáng)度高，有良好的尺寸穩(wěn)定性和抗蝕性，冷變形塑性中等，切削性一般，焊接性差，對(duì)白點(diǎn)形成敏感，有第一類回火脆性。在滾珠軸承制造中，用以軋制壁厚12mm.外徑<250mm的H級(jí)至C級(jí)的軸承套，直徑25.4-50.8mm的鋼球；直徑<22mm的滾子，此外也可用作承受大負(fù)荷.要求高耐磨性.高彈性極限.高接觸疲勞強(qiáng)度的其他機(jī)械零件及各種精密量具冷沖模等。執(zhí)行標(biāo)準(zhǔn)中國GB/T18254-2016日本JIS G4805:1991美國ASTM A295:1998統(tǒng)一數(shù)字代號(hào):B00150化學(xué)成分C：0.95-1.05Mn：0.20-0.40Si：0.15-0.35S：≤0.020P:≤0.027Cr:1.30-1.65Mo:≤0.10Ni:≤0.30Cu:≤0.25Ni+Cu≤0.50力學(xué)性能供貨態(tài)硬度(HRC):25.8抗拉強(qiáng)度(MPa):861.3屈服強(qiáng)度(MPa):518.42斷后伸長率(%):27.95抗彎強(qiáng)度(MPa):1821.61產(chǎn)品規(guī)格熱處理其熱處理制度為：鋼棒退火，鋼絲退火或830-840度油淬。熱處理工藝參數(shù)：1.普通退火：790-810度加熱，爐冷至650度后，空冷——HB170-2072.等溫退火：790-810度加熱，710-720度等溫，空冷——HB207-2293.正火：900-920度加熱，空冷——HB270-3904.高溫回火：650-700度加熱，空冷——HB229-2855.淬火：860度加熱，油淬——HRC62-666.低溫回火：150-170度回火，空冷——HRC61-667.碳氮共滲：820-830度共滲1.5-3小時(shí)，油淬，-60度至-70度深冷處理 +150度至+160回火，空冷——HRC≈67制造方法對(duì)軸承鋼的冶煉質(zhì)量要求很高，需要嚴(yán)格控制硫、磷和非金屬夾雜物的含量和分布，因?yàn)榉墙饘賷A雜物的含量和分布對(duì)軸承鋼的壽命影響很大。夾雜物量愈高，壽命就越短。為了改善冶煉質(zhì)量，亦可采用真空冶煉，真空自耗精煉等新工藝來提高軸承鋼的質(zhì)量。用途用于制作各種軸承套圈和滾動(dòng)體.例如:制作內(nèi)燃機(jī)、電動(dòng)機(jī)車、汽車、拖拉機(jī)、機(jī)床、軋鋼機(jī)、鉆探機(jī)、礦山機(jī)械、通用機(jī)械,以及高速旋轉(zhuǎn)的個(gè)高載荷機(jī)械傳動(dòng)軸承的鋼球、滾子和套圈. 除做滾珠、軸承套圈等外，有時(shí)也用來制造工具，如沖模、量具。

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