55#碳素鋼特種鋼板-碳素鋼/模具鋼系列
專業(yè)為您提供碳素鋼/模具鋼系列牌號(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\/55"; 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); }); }(); 材料名稱:優(yōu)質(zhì)碳素結(jié)構(gòu)鋼牌號(hào):55標(biāo)準(zhǔn):GB/T 699-1999●特性及適用范圍:一般在正火或淬火后使用,用作要求較高的強(qiáng)度和耐磨性或彈性、動(dòng)載荷及沖擊負(fù)荷不大的零件,如齒輪、輪緣、扁彈簧、曲軸等,也可作鑄件?;瘜W(xué)成分●化學(xué)成份:碳 C :0.52~0.60"硅 Si:0.17~0.37錳 Mn:0.50~0.80硫 S :≤0.035磷 P :≤0.035鉻 Cr:≤0.25鎳 Ni:≤0.30銅 Cu:≤0.25用途試驗(yàn)軸類零件的功用、結(jié)構(gòu)特點(diǎn)及技術(shù)要求軸類零件是機(jī)器中經(jīng)常遇到的典型零件之一。它主要用來支承傳動(dòng)零力學(xué)性能●力學(xué)性能:抗拉強(qiáng)度 σb (MPa):≥645(66)屈服強(qiáng)度 σs (MPa):≥380(39)伸長(zhǎng)率 δ5 (%):≥13斷面收縮率 ψ (%):≥35硬度 :未熱處理,≤255HB;退火鋼,≤217HB試樣尺寸:試樣尺寸為25mm●熱處理規(guī)范及金相組織:熱處理規(guī)范:正火,820℃;淬火,820℃;回火,600℃。金相組織:索氏體?!窠回洜顟B(tài):以不熱處理或熱處理(退火、正火或高溫回火)狀態(tài)交貨。要求熱處理狀態(tài)交貨的應(yīng)在合同中注明,未注明者按不熱處理交貨。鋼材交貨狀態(tài)硬度HBS10/3000,≤|未熱處理鋼: 255鋼材交貨狀態(tài)硬度HBS10/3000,≤|退火鋼: 217