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40CR鋼板特種鋼板-特殊合金鋼板系列
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.index-module_taskLogo__71Tj5{height:66px;position:absolute;right:30px;top:0;width:66px}.index-module_drawerHand__aRhcO.index-module_open__qMl5O{right:480px}.index-module_reverse__OKr6k{transform:rotate(180deg)}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進(jìn)入詞條全站搜索幫助首頁秒懂百科特色百科知識專題加入百科百科團(tuán)隊(duì)權(quán)威合作個人中心收藏查看我的收藏0有用+1040Cr鋼板播報討論上傳視頻機(jī)械制造業(yè)使用最廣泛的鋼之一40Cr鋼板是機(jī)械制造業(yè)使用最廣泛的鋼之一，適于制作中型塑料模具。中文名40Cr鋼板正 文40Cr鋼板是機(jī)械制造業(yè)使用最執(zhí)行標(biāo)準(zhǔn)中國執(zhí)行標(biāo)準(zhǔn)：GB/T3077-1999化學(xué)成分C 0.37~0.44、Si 0.17~0.37目錄1簡介2執(zhí)行標(biāo)準(zhǔn)3化學(xué)成分4機(jī)械性能5表示方法6重量計(jì)算簡介播報編輯調(diào)質(zhì)處理后具有良好的綜合力學(xué)性能，良好的低溫沖擊韌性和低的缺口敏感性。鋼的淬透性良好，水淬時可淬透到Ф28～60mm,油淬時可淬透到Ф15～40mm。這種鋼除調(diào)質(zhì)處理外還適于氰化和高頻淬火處理。切削性能較好，當(dāng)硬度為HB174～229時，相對切削加工性為60%。該鋼適于制作中型塑料模具。執(zhí)行標(biāo)準(zhǔn)播報編輯中國執(zhí)行標(biāo)準(zhǔn)：GB/T3077-2018美國執(zhí)行標(biāo)準(zhǔn)：ASTM A29/A29M-04日本執(zhí)行標(biāo)準(zhǔn)：JIS G4053-2018德國執(zhí)行標(biāo)準(zhǔn)：EN 10083/1-2018英國執(zhí)行標(biāo)準(zhǔn)：EN 10083/1-2018法國執(zhí)行標(biāo)準(zhǔn)：EN 10083/1-2018俄羅斯執(zhí)行標(biāo)準(zhǔn)：TOCT 4543-71化學(xué)成分播報編輯C 0.37~0.44、Si 0.17~0.37、Mn 0.50~0.80、Cr0.80~1.10、Ni≤0.30機(jī)械性能播報編輯試樣毛坯尺寸（mm）：25熱處理：第一次淬火加熱溫度（℃）：850；冷卻劑：油第二次淬火加熱溫度（℃）：-回火加熱溫度（℃）：520；冷卻劑：水、油抗拉強(qiáng)度（σb/MPa）：≥980屈服點(diǎn)（σs/MPa）：≥785斷后伸長率（δ5/%）：≥9斷面收縮率（ψ/%）：≥45沖擊吸收功（Aku2/J）：≥47布氏硬度（HBS100/3000）（退火或高溫回火狀態(tài)）：≤20740Cr合金鋼板40Cr與45#鋼的區(qū)別45鋼屬于GB699“（優(yōu)質(zhì)）碳素結(jié)構(gòu)鋼”，40Cr屬于GB3077“合金結(jié)構(gòu)鋼”。區(qū)別就在于熱處理以后。Cr在熱處理中的主要作用是提高鋼的淬透性。由于淬透性提高，淬火（或調(diào)質(zhì)）處理后40Cr的強(qiáng)度、硬度、沖擊韌性等機(jī)械性能也明顯比45鋼高，但也是由于淬透性強(qiáng)，在淬火時40Cr的內(nèi)應(yīng)力也就比45鋼大，同樣的條件下40Cr材料的工件開裂傾向也就比45鋼材料的工件大。因此為避免工件開裂，40Cr淬火時大多選用導(dǎo)熱性較低的油作為淬火介質(zhì)（有時也用雙液淬火法，俗話叫水淬油冷），而45剛則用導(dǎo)熱性較高的水作為淬火介質(zhì)。表示方法播報編輯① 鋼號開頭的兩位數(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，除個別微合金元素外，一般以百分之幾表示。當(dāng)平均合金含量＜1.5%時，鋼號中一般只標(biāo)出元素符號，而不標(biāo)明含量，但在特殊情況下易致混淆者，在元素符號后亦可標(biāo)以數(shù)字"1"，例如鋼號"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，在元素符號后面應(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)在鋼號中標(biāo)出。例如20MnVB鋼中。釩為0.07-0.12%，硼為0.001-0.005%。④高級優(yōu)質(zhì)鋼應(yīng)在鋼號最后加"A"，以區(qū)別于一般優(yōu)質(zhì)鋼。重量計(jì)算播報編輯◆扁鋼:每米重量(公斤)=0.00785×厚度(mm)×邊寬(mm)◆管材:每米重量(公斤)=0.02466×壁厚(mm)×(外徑-壁厚(mm))◆板材:每米重量(公斤)=0.785×厚度(mm)◆圓鋼:每米重量(公斤)=0.00617×直徑×直徑(注:螺紋鋼和圓鋼相同)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?2024?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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0.17~0.37"}]}]},"lemmaCnt":1,"tips":{"isPolyseme":0},"encodeLemmaId":"08b8cb8565229063d3376417","versionUk":"hsHj5i8Wa2C7KbUvOHo7kg","description":"40Cr鋼板是機(jī)械制造業(yè)使用最廣泛的鋼之一，適于制作中型塑料模具。"}window.__abbaidu_2020_subidgetf||(window.__abbaidu_2020_subidgetf=function(){return"01000000"}) S690QL簡介 S690QL化學(xué)成分 元素含量－ [最大%] Cu最大0.50，Mo最大0.70，Nb最大0.06，Ni最大2.0，Ti最大0.05，V最大0.12，Zr 最大0.15 S690QL執(zhí)行標(biāo)準(zhǔn) WYJ，EN10025-6 S690QL用途 S690QL用于耐低溫、高強(qiáng)度的關(guān)鍵部件、建筑機(jī)械、礦山機(jī)械結(jié)構(gòu)等，歐洲標(biāo)準(zhǔn)高強(qiáng)度鋼板，對應(yīng)國標(biāo)Q690E舞鋼產(chǎn)高強(qiáng)度板，制造各類工程機(jī)械，如礦山和各類工程施工用的鉆機(jī)、電鏟、電動輪翻斗車、礦用汽車、挖掘機(jī)、裝載機(jī)、推土機(jī)、各類起重機(jī)、煤礦液壓支架等機(jī)械設(shè)備及其他結(jié)構(gòu)件。 S690QL力學(xué)性能 S690QL：屈服強(qiáng)度σ0.2 ≥690-≥650 MPa， S690QL：抗拉強(qiáng)度σb 770-940MPa ， S690QL：延伸率≥14 δ5 %， S690QL：-40℃V型沖擊功 縱向 ≥30J。
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