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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\/Y20"; 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); }); }(); 簡介是低硫磷復(fù)合易切削鋼，其切削性能優(yōu)于20號鋼而低于 Y12鋼，但 Y20的力學(xué)性能高于 Y12鋼。切削加工成形后可以進(jìn)行滲碳處理，用來制造表面硬、中心韌性高的儀器儀表零件及軸類耐磨件牌號：Y20化學(xué)成份：碳 C ：0.17～0.25硅 Si：0.15～0.35錳 Mn：0.70～1.00硫 S ：0.08～0.15磷 P ：≤0.06力學(xué)性能：抗拉強(qiáng)度 σb (MPa)：(熱軋)450～600; (冷拉)鋼材厚度或直徑 8～20時(shí):570～785; >20～30時(shí):530～745; >30時(shí):510～705伸長率 δ5 (%)：(熱軋)≥20;(冷軋)≥7.0斷面收縮率 ψ (%)：(熱軋)≥30硬度 ：(熱軋)≤175HB;(冷拉)167～217HB●交貨狀態(tài)：以熱軋或冷拉狀態(tài)交貨，交貨狀態(tài)應(yīng)在合同中注明。