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20G特種鋼板-鍋爐板/容器板系列
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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(pán)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(zhuān)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+1020g播報(bào)討論上傳視頻金屬材料鋼材中的一種材質(zhì)。屬鍋爐板。g為鍋爐板中“鍋”的第一個(gè)字母：g。它們（20#和20g）除含碳量一樣外，20g還有一些微量元素更適合用作鍋爐壓力容器使用的特性。另外20g還著重考核它的物理性能。比如彎曲、沖擊和抗拉性能。中文名20g執(zhí)行標(biāo)準(zhǔn)GB5310-2017適用范圍厚度6mm-150mm的鋼板性 質(zhì)金屬材料目錄1簡(jiǎn)介2相關(guān)區(qū)別3計(jì)算方法4金屬材料焊接、熱處理工藝簡(jiǎn)介播報(bào)編輯(2008年標(biāo)準(zhǔn)改為Q245R)20g.執(zhí)行標(biāo)準(zhǔn)：GB713-1997內(nèi)外部標(biāo)準(zhǔn)均執(zhí)行此標(biāo)準(zhǔn)適用范圍：厚度6mm-150mm的鋼板。因?yàn)殇摪逶诮回浀臅r(shí)候?yàn)檎罱回?，所以，鍋爐板還有厚度附加值表。在理論計(jì)算鋼板重量的時(shí)候，需要在厚度的基礎(chǔ)上，加上表上相對(duì)應(yīng)的數(shù)值。根據(jù)要求，可對(duì)鋼板進(jìn)行熱處理交貨：控軋，正火等。探傷標(biāo)準(zhǔn)執(zhí)行：JB/T4730.3-2005，分三個(gè)等級(jí)。相關(guān)區(qū)別播報(bào)編輯20#和20g無(wú)縫管的區(qū)別20鋼管的詳細(xì)參數(shù)以及標(biāo)準(zhǔn)描述統(tǒng)一數(shù)字代號(hào)U20252GB/T——20（國(guó)標(biāo)）ISO——標(biāo)準(zhǔn)中無(wú)此鋼代號(hào)（國(guó)際標(biāo)準(zhǔn)）ГОСТ——————20（前蘇聯(lián)）ASTM——1020（美國(guó)）JIS——S20C（日本）DIN——C22（前聯(lián)邦德國(guó)）BS——1C22（英國(guó)）NF——C22（法國(guó)）注：國(guó)內(nèi)牌號(hào)中有些鋼在ISO中無(wú)代號(hào)。20成分：C——(0.17～0.24)%Si——(0.17～0.37)%Mn——(0.35～0.65)%P——≤0.040%S——≤0.040%屈服點(diǎn)σ^s——不小于250MPa抗拉強(qiáng)度σ^b——不小于420MPa伸長(zhǎng)率δ————不小于25%斷面收縮率ψ————不小于55%沖擊韌度a^K——無(wú)硬度HBS——熱軋鋼156高壓管尺寸及允許偏差偏差等級(jí)標(biāo)準(zhǔn)化外徑允許偏差D1±1.5%，最小±0.75 mmD2±1.0%。最小±0.50 mmD3±0.75%．最小±0.30 mmD4±0.50%。最小±0.10 mm計(jì)算方法播報(bào)編輯角鋼：每米重量=0.00785*（邊寬+邊寬-邊厚）*邊厚圓鋼：每米重量=0.00617*直徑*直徑(螺紋鋼和圓鋼相同)扁鋼：每米重量=0.00785*厚度*邊寬管材：每米重量=0.02466*壁厚*（外徑-壁厚）板材：每米重量=7.85*厚度黃銅管：每米重量=0.02670*壁厚*（外徑-壁厚）紫銅管：每米重量=0.02796*壁厚*（外徑-壁厚）鋁花紋板：每平方米重量=2.96*厚度有色金屬比重：紫銅板8.9黃銅板8.5鋅板7.2鉛板11.37有色金屬板材的計(jì)算公式為：每平方米重量=比重*厚度規(guī)格表規(guī)格規(guī)格規(guī)格規(guī)格14*338*5.589*5133*1814*3.542*389*5.5159*614*442*3.589*6159*6.516*342*489*7159*718*242*589*7.5159*818*342*689*8159*9.518*442*889*9159*1018*545*389*10159*1219*245*489*11159*1421*445*589*12159*1622*2.545*6108*4.5159*1822*345*7108*5159*2022*448*4108*6159*2822*548*4.5108*7168*625*2.548*5108*8168*725*348*6108*9168*825*448*7108*10168*9.525*548.3*12.5108*12168*1025*5.551*3108*14168*1127*3.551*3.5108*15168*1227*451*4108*16168*1427*551*5108*20168*1527*5.551*6114*5168*1628*2.557*4114*6168*1828*357*5114*7168*2028*3.557*5.5114*8168*2228*457*6114*8.5168*2530*2.560*4114*9168*2832*2.560*4114*10180*1032*360*5114*11194*1032*3.560*6114*12194*1232*460*7114*13194*1432*4.560*8114*14194*1632*560*9114*16194*1834*360*10114*18194*2034*476*4.5133*5194*2634*4.576*5133*6219*6.534*576*6133*7219*734*6.576*7133*8219*838*376*8133*10219*938*3.576*9133*12219*1038*476*10133*13219*1238*4.589*4133*14219*1338*589*4.5133*16219*14219*16273*36356*28426*12219*18273*40356*36426*13219*20273*42377*9426*14219*22273*45377*10426*17219*24298.5*36377*12426*20219*25325*8377*14426*22219*26325*9377*15426*30219*28325*10377*16426*36219*30325*11377*18426*40219*32325*12377*20426*50219*35325*13377*22457*9.5219*38325*14377*25457*14273*7325*15377*32457*16273*8325*16377*36457*19273*9325*17377*40457*24273*9.5325*18377*45457*65273*10325*20377*50508*13273*11325*22406*9.5508*16273*12325*23406*11508*20273*13325*25406*13508*22273*15325*28406*17558.8*14273*16325*30406*22530*13273*18325*32406*32530*20273*20325*36406*36570*12.5273*22325*40406*40610*13273*25325*45406*55610*18273*28356*9.5406.4*50610*78273*30356*12406.4*55624*14.2273*32356*15406*60824*16.5273*35356*19--金屬材料焊接、熱處理工藝播報(bào)編輯母材Q195,Q215,Q235,鋼20,20G,20R預(yù)熱管材壁厚≥26mm時(shí)需預(yù)熱至100～200℃,板材厚度≥34mm時(shí)需預(yù)熱至100～150℃,壁厚≥15mm的管子在負(fù)溫下焊接時(shí)也要預(yù)熱至100～200℃焊接手工電弧焊焊條焊條型號(hào)焊接電源烘干J507E5015直流反接350℃左右烘干1小時(shí)J506E5016交流或直流反接350℃左右烘干1小時(shí)J427E4315直流反接350℃左右烘干1小時(shí)J422E4303交直流兩用100℃左右烘干1小時(shí)焊條直徑(mm)焊條2.02.53.24.05.0焊接電流（A）J42240～7070～9090～130160～210220～270J507/J50640～7060～9090～120140～180170～210氬弧焊焊接電源直流正接焊絲TIG-J50(TG50Re、TG50、H08MnA等)焊后熱處理溫度(℃)600～650壁厚(mm)≤12.512.5～2525～37.537.5～5050～7575～100恒溫時(shí)間--1.5h2h2.25h2.5h壁厚>30mm的碳素鋼管子與管件、壁厚>32mm的碳素鋼容器焊后需要進(jìn)行熱處理。備注1． J507/J506用于焊接動(dòng)載荷、復(fù)雜和厚板結(jié)構(gòu)、重要受壓容器以及低溫下的焊接；J422用于一般結(jié)構(gòu)的焊接；。2． 焊前必須嚴(yán)格清理焊件及其坡口表面的鐵銹、油污、水份等。3． 當(dāng)采用鎢極氬弧焊,預(yù)熱溫度可按下限溫度降低50℃。4． 施焊過(guò)程中,層間溫度應(yīng)不低于預(yù)熱溫度的下限,且不高于400℃。新手上路成長(zhǎng)任務(wù)編輯入門(mén)編輯規(guī)則本人編輯我有疑問(wèn)內(nèi)容質(zhì)疑在線(xiàn)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(xún)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= {"lemmaId":453112,"lemmaTitle":"20g","lemmaDesc":"金屬材料","lemmaType":0,"uid":57225528,"uname":"舞鋼韓志華","createTime":1203817716,"updateTime":1704950425,"isDefault":0,"isDeleted":0,"rank":1,"extData":{"LemmaId":1431559,"audit_comment_category":2,"classify":[{"id":1033565,"idPath":"1033565/1033595/1033764","leafId":1033764,"leafName":"材料","mainCategory":1,"name":"應(yīng)用科學(xué)","path":"應(yīng)用科學(xué)/材料學(xué)/材料"}],"discussion":{"relateInfo":[{"relateId":32990,"relateType":1},{"relateId":33010,"relateType":1}]},"isBaikeV6":1,"isFrontV6":1,"isSapp":0,"isWaitForPersonal":false,"is_locked":0,"kpdClassify":[{"id":337502,"name":"工業(yè)產(chǎn)品"}],"lemmaId":1431559,"lemma_id":1431559,"newEditor":1,"origAuditArea":4,"origCommandNo":13001003,"pass_count":48,"subLemmaId":1431559,"uip":"27.196.141.236","updateTime":1725986663,"wapEdit":0},"extFlag":0,"versionId":560382500,"versionUid":1665900399,"versionUname":"Gmda01","versionCreateTime":1704949730,"catalog":[{"level":1,"title":"簡(jiǎn)介","index":"1","uuid":"gnx975a2ou","height":28},{"level":1,"title":"相關(guān)區(qū)別","index":"2","uuid":"gnx975a2qf","height":28},{"level":1,"title":"計(jì)算方法","index":"3","uuid":"gnx972ct1h","height":28},{"level":1,"title":"金屬材料焊接、熱處理工藝","index":"4","uuid":"gnx97cexg9","height":56}],"abstract":[],"abstractAlbum":{"content":[{"albumId":1,"src":"d62a6059252dd42abee98e82013b5bb5c9eab833","width":1024,"height":768,"uuid":"dmflmwkew5"}],"desc":"概述圖冊(cè)","total":1,"coverPic":{"albumId":1,"url":"https://bkimg.cdn.bcebos.com/pic/d62a6059252dd42abee98e82013b5bb5c9eab833?x-bce-process=image/resize,m_lfit,w_536,limit_1/quality,Q_70","src":"d62a6059252dd42abee98e82013b5bb5c9eab833","origSrc":"d62a6059252dd42abee98e82013b5bb5c9eab833","width":1024,"height":768,"uuid":"dmflmwkew5"}},"modules":{"adManager":{"data":{"wapRelatedBusiness":1}},"discussion":{"showHelpEdit":1},"globalConfig":{"data":{"serviceAdLemmaCategory":[337597,337474]}},"paper":{"switch":true},"pinzhuan":{}},"albums":[{"albumId":1,"desc":"概述圖冊(cè)","total":1,"coverPic":{"albumId":1,"src":"d62a6059252dd42abee98e82013b5bb5c9eab833","url":"https://bkimg.cdn.bcebos.com/pic/d62a6059252dd42abee98e82013b5bb5c9eab833?x-bce-process=image/resize,m_lfit,w_536,limit_1/quality,Q_70","width":1024,"height":768,"desc":"概述圖冊(cè)","uuid":"dmflmwkew5"},"content":[{"albumId":1,"src":"d62a6059252dd42abee98e82013b5bb5c9eab833","url":"","width":1024,"height":768,"uuid":"dmflmwkew5"}]},{"albumId":0,"desc":"詞條圖片","total":1,"coverPic":{"albumId":0,"tag":"image","type":"normal","src":"8d158aeecf477b022df534a0","url":"https://bkimg.cdn.bcebos.com/pic/8d158aeecf477b022df534a0?x-bce-process=image/resize,m_lfit,w_220,h_220,limit_1","width":200,"height":146,"cropWidth":200,"cropHeight":146,"owner":"聊城寬達(dá)管業(yè)","title":"20g","layout":"right","style":"float: 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簡(jiǎn)介20g指的是20#鋼，也有20g。鋼材中的一種材質(zhì)。屬鍋爐板。g為鍋爐板中“鍋”的第一個(gè)字母：g。它們除含碳量一樣外，20g還有一些微量元素更適合用作鍋爐壓力容器使用的特性。另外20g還著重考核它的物理性能。比如彎曲、沖擊和抗拉性能。適用范圍因?yàn)殇摪逶诮回浀臅r(shí)候?yàn)檎罱回?，所以，鍋爐板還有厚度附加值表。在理論計(jì)算鋼板重量的時(shí)候，需要在厚度的基礎(chǔ)上，加上表上相對(duì)應(yīng)的數(shù)值。根據(jù)要求，可對(duì)鋼板進(jìn)行熱處理交貨：控軋，正火等。探傷標(biāo)準(zhǔn)執(zhí)行：JB/T4730.3-2005，分三個(gè)等級(jí)。相關(guān)區(qū)別20#和20g無(wú)縫管的區(qū)別20鋼管的詳細(xì)參數(shù)以及標(biāo)準(zhǔn)描述統(tǒng)一數(shù)字代號(hào)U20252GB/T——20（國(guó)標(biāo)）ISO——標(biāo)準(zhǔn)中無(wú)此鋼代號(hào)（國(guó)際標(biāo)準(zhǔn)）ГОСТ——————20（前蘇聯(lián)）ASTM——1020（美國(guó)）JIS——S20C（日本）DIN——C22（前聯(lián)邦德國(guó)）BS——1C22（英國(guó)）NF——C22（法國(guó)）注：國(guó)內(nèi)牌號(hào)中有些鋼在ISO中無(wú)代號(hào)。20成分：C——(0.17～0.24)%Si——(0.17～0.37)%Mn——(0.35～0.65)%P——≤0.040%S——≤0.040%屈服點(diǎn)σ^s——不小于250MPa抗拉強(qiáng)度σ^b——不小于420MPa伸長(zhǎng)率δ————不小于25%斷面收縮率ψ————不小于55%沖擊韌度a^K——無(wú)硬度HBS——熱軋鋼156
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