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百度百科-驗證 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\/NAS304N2"; 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，請進行驗證', 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: '驗證失敗，請重新驗證' }); 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); }); }(); NAS 304N2NAS 304N2不銹鋼(18Cr-8Ni-N-Nb)在304鋼中添加N和Nb，使其具有在抑制延伸性能下降的同時提高強度，有減小材料厚度的效果等和SUS304N1一樣的性能。NAS 304N2不銹鋼用途與SUS304N1鋼相同。NAS 304N2在304的基礎(chǔ)上加入了氮和鈮，不僅防止塑性降低，提高鋼的強度和加工硬化傾向，提高鋼的耐點蝕和晶間腐蝕性能。應用領(lǐng)域：用于有一定耐蝕性要求，并要求較高強度和減輕重量的焊接設(shè)備和結(jié)構(gòu)部件。 PRODUCT PARAMETERS 產(chǎn)品參數(shù) 化學成分成分CSiMnPSNiCrNNb最小值-----7.5180.15-最大值0.0812.50.0450.0310.5200.30.15物理性能：密度密度(20℃)/kg/dm3:"—,熔點/℃:—,比熱容(0~100℃)/kg/(kg.k):0.5",熱導率/w/(m.k)100℃-:"16.3",熱導率/w/(m.k)500℃-:"21.5 ",線脹系數(shù)/(10-6/k)0~100℃:"15.7",線脹系數(shù)/(10-6/k)0~515℃:"18.7",電阻率（20℃）/（Ω.mm2/m):"",縱向彈性模量（20℃）/GPa:"，磁性:無。 上一頁：NAS 305