4130特種鋼板-建筑及工業(yè)用鋼板系列
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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\/4130"; 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); }); }(); 說明: 4130結(jié)構(gòu)鋼具有高的強(qiáng)度和韌性,淬透性較高,在油中臨界淬透直徑15~70mm;鋼的熱強(qiáng)度性也較好,在500℃以下具有足夠的高溫強(qiáng)度,但550℃時(shí)其強(qiáng)度顯著下降;當(dāng)合金元素在下限時(shí)焊接相當(dāng)好,但接近上限時(shí)焊接性中等,并在焊前需預(yù)熱到175℃以上;鋼的可切削性良好,冷變形時(shí)塑性中等;熱處理時(shí)在300~350℃的范圍有第一類回火脆性;有形成白點(diǎn)的傾向?;瘜W(xué)成分: 碳 C :0.28~0.33硅 Si:0.15~0.35錳 Mn:0.40~0.60硫 S :允許殘余含量≤0.040磷 P :允許殘余含量≤0.035鉻 Cr:0.80~1.10鎳 Ni:允許殘余含量≤0.030銅 Cu:允許殘余含量≤0.030鉬 Mo:0.15~0.25力學(xué)性能:抗拉強(qiáng)度 σb (MPa):≥930(95)屈服強(qiáng)度 σs (MPa):≥785(80)伸長率 δ5 (%):≥12斷面收縮率 ψ (%):≥50沖擊功 Akv (J):≥63沖擊韌性值 αkv (J/cm2):≥78(8)硬度 :≤229HB試樣尺寸:試樣毛坯尺寸為25mm熱處理規(guī)范:淬火880℃,水冷、油冷;回火540℃,水冷、油冷。