21nicrmo2合金圓鋼-工具鋼
專業(yè)為您提供工具鋼牌號(hào),材質(zhì)單,在線報(bào)價(jià)單 歡迎選購(gòu)
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\/21nicrmo2"; 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); }); }(); 21NiCrMo2是德標(biāo)老牌號(hào),對(duì)應(yīng)新的德標(biāo)(歐標(biāo))為:20NiCrMo2-2是高強(qiáng)度、高韌性低碳淬火新型結(jié)構(gòu)鋼,有較高的淬透性,油冷變形及裂紋傾向很小,脫碳傾向低,鍛造工藝性能良好,焊接性較好,復(fù)雜形狀零件焊前應(yīng)預(yù)熱至300°C,焊后緩冷,但切削加工性差?;瘜W(xué)成份:硫 S :≤0.35磷 P :≤0.35鉻 Cr:≤0.30鎳 Ni:≤0.30銅 Cu:≤0.30釩 V :0.05~0.12鉬 Mo:0.30~0.40力學(xué)性能:抗拉強(qiáng)度 σb (MPa):≥1375(140)伸長(zhǎng)率 δ5 (%):≥10斷面收縮率 ψ (%):≥45沖擊功 Akv (J):≥55沖擊韌性值 αkv (J/cm2):≥69(7)硬度 :≤269HB