G20CRMO合金圓鋼-軸承鋼
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百度百科-驗(yàn)證 if (!window['__abbaidu_2020_subidgetf']) { window['__abbaidu_2020_subidgetf'] = function () { var subid = 01000000; return subid; }; } !function(){ var $ = require('wiki-common:widget/lib/jquery/jquery'); var Dialog = require('wiki-common:widget/ui/dialog/dialog'); var ClickstreamSdk = require('wiki-common:widget/util/clickstreamSdk'); var clickstream = new ClickstreamSdk.default({ appname: 'baike', platform: 'web', device: 'pc', page: 'spam', auto: true }); var sourceUrl = "\/item\/G20CRMO"; var fromPage = "pc_lemma_page_risk_score"; var logParam = { page: 'spam', fromPage: fromPage } clickstream.logActEvent($.extend({}, logParam, {'act_type': 'show'})); function init() { if (window.sdkMachine) { var machineSDK = new window.sdkMachine({ container: document.body, title: '訪問異常,請(qǐng)進(jìn)行驗(yàn)證', ak: 'GHm64ouBF7GGAhXNcsae9xiVByAGWhMI', deviceType: 'pc', type: 'spin', testUrl: '', initApiSuccessFn: function() { machineSDK.init(); }, errorFn: function(err) { alert('errfn___' + err.message || '') }, verifySuccessFn: function(result) { $.ajax({ type: 'GET', url: '/api/anticrawl/captchaverify', dataType: 'json', data: { ds: result.ds, passTk: result.tk, clientType: 'pc', tk: "d4b87f38b35a5e84f28e8674b41132db", sourceFrom: fromPage }, success: function(res) { if (res && res.errno === 0 && !res.isSpam) { clickstream.logActEvent($.extend({}, logParam, {'act_type': 'verify-pass'})); if (sourceUrl) { machineSDK.close(); window.location.href = sourceUrl; } } else { var submitInform = Dialog.inform({ icon: 'WARNING', mainMsg: '驗(yàn)證失敗,請(qǐng)重新驗(yàn)證' }); submitInform.show(); setTimeout(function() { submitInform.hide(); }, 3000); machineSDK.close(); init(); } } }); }, verifyFailFn: function() { }, feedbackEvent: function(feedback) { return true; }, }); } }; init(); }(); !function(){ require('wiki-common:widget/component/psLink/psLink'); var clickstream = require('wiki-common:packages/utils/logger'); clickstream.logViewPage({ page: 'all-pc' }); var tmpBaiduId = ''; require(['wiki-common:widget/util/setBaikeTmpBaiduId.es'], function (setBaikeTmpBaiduId, cookie) { setBaikeTmpBaiduId(tmpBaiduId); }); }(); 簡(jiǎn)介 20CrMo淬透性較高,無回火脆性,焊接性相當(dāng)好,形成冷裂的傾向很小,可切削性及冷應(yīng)變塑性良好。一般在調(diào)質(zhì)或滲碳淬火狀態(tài)下使用,用于制造在非腐蝕性介質(zhì)及工作溫度低于 250℃、含有氮?dú)浠旌衔锏慕橘|(zhì)中工作的高壓管及各種緊固件、較高級(jí)的滲碳零件,如齒輪、軸等。簡(jiǎn)介牌號(hào):20CrMo合金結(jié)構(gòu)鋼標(biāo)準(zhǔn):對(duì)應(yīng)標(biāo)準(zhǔn):JIS G4053:2003ASTM A29M:2005ISO 683-18:1996 [1] 化學(xué)成份:碳 C :0.17~0.24硅 Si:0.17~0.37錳 Mn:0.40~0.70硫 S :允許殘余含量≤0.035磷 P :允許殘余含量≤0.035鉻 Cr:0.80~1.10鉬 Mo:0.15~0.25鎳 Ni:允許殘余含量≤0.03銅 Cu:允許殘余含量≤0.03力學(xué)性能:抗拉強(qiáng)度 σb (MPa):≥885(90)屈服強(qiáng)度 σs (MPa):≥685(70)伸長(zhǎng)率 δ5 (%):≥12斷面收縮率 ψ (%):≥50沖擊功 Akv (J):≥78沖擊韌性值 αkv (J/cm2):≥98(10)硬度 :≤197HB用途處理規(guī)范熱處理規(guī)范:淬火880℃,水冷、油冷;回火500℃,水冷、油冷?!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?!?0CrMo熱處理:20CrMo材料屬于低碳合金結(jié)構(gòu)鋼,適合滲碳淬火處理;熱處理規(guī)范:淬火880℃,水冷、油冷;回火500℃,水冷、油冷.●20CrMo硬度20CrMo淬火(860-880℃水或油冷),加低溫(150--200℃)回火,20CrMo硬度為HRC32-33●熱處理和力學(xué)性能:鋼號(hào): 20CrMo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: —熱處理|淬火|冷卻劑: 水、油熱處理|回火|加熱溫度/℃: 500熱處理|回火|冷卻劑: 水、油力學(xué)性能|抗拉強(qiáng)度σb/MPa|≥: 885力學(xué)性能|屈服點(diǎn)σs/MPa|≥: 685力學(xué)性能|伸長(zhǎng)率δ5(%)|≥: 12力學(xué)性能|面縮率ψ(%)|≥: 50力學(xué)性能|沖擊吸收功AKV/J|≥: 78交貨狀態(tài)硬度HBS|≥: 197