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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\/304LN"; 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(wèn)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); }); }(); 304LN304LN屬于奧氏體類型的不銹鋼，與304L鋼相比，添加了N，以提高結(jié)構(gòu)件用高強(qiáng)度性及耐粒界腐蝕性。主要用做結(jié)構(gòu)鋼使用，如化學(xué)物質(zhì)運(yùn)輸船。304LN不銹鋼在304N的基礎(chǔ)上降低了碳含量，因304N在450~900度加熱后耐晶間腐蝕性能明顯下降，因此對(duì)于焊接設(shè)備結(jié)構(gòu)件，推薦用本材料。304LN應(yīng)用和特性：304LN應(yīng)用領(lǐng)域：用于有一定耐蝕性要求，并要求較高強(qiáng)度和減輕重量的設(shè)備和結(jié)構(gòu)部件。特別是焊接設(shè)備結(jié)構(gòu)件，推薦用本材料。 PRODUCT PARAMETERS 產(chǎn)品參數(shù) 化學(xué)成分成分CSiMnPSNiCrN最小值-----8180.1最大值0.03120.0450.0311200.16物理性能密度g/cm比熱容/kg/(kg.k)℃100~900℃熱導(dǎo)率/w/(m.k)100~500℃線脹系數(shù)/(10-6/k)20℃電阻率/（Ω.mm2/m)20℃縱向彈性模量/GPa硬度HRB磁性≤95無(wú)16.3-21.516.5~18.50.72200≤95無(wú) 上一頁(yè)：S30453