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55si2mn合金圓鋼-彈簧鋼

專(zhuān)業(yè)為您提供彈簧鋼牌號(hào),材質(zhì)單,在線(xiàn)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\/55si2mn"; 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(fǎng)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); }); }(); 55Si2Mn彈簧鋼硅和錳提高彈性強(qiáng)度和屈強(qiáng)比,提高淬透性,抗回火穩(wěn)定性和抗松弛穩(wěn)定性,過(guò)熱敏感性也較小,但脫碳傾向較大,尤其是硅與碳含量較高時(shí),碳易于石墨化,使鋼變脆。55Si2Mn彈簧鋼用作汽車(chē)、拖拉機(jī)和機(jī)車(chē)上的減振板簧和螺旋彈簧、氣缸安全閥簧,還可用作250℃以下使用的耐熱彈簧。中文名 55Si2Mn 標(biāo)    準(zhǔn) :GB/T 1222-1984 碳 C  :0.52~0.60 抗拉強(qiáng)度 σb (MPa):≥1274(130) 屈服強(qiáng)度  σs (MPa):≥1176(120) 伸長(zhǎng)率  δ10 (%):≥6介紹材料名稱(chēng): 55Si2Mn標(biāo)準(zhǔn):GB/T 1222-1984●特性及適用范圍:化學(xué)成分●化學(xué)成份:碳 C :0.52~0.60硅 Si:1.50~2.00錳 Mn:0.60~0.90硫 S :≤0.035磷 P :≤0.035鉻 Cr:≤0.35鎳 Ni:≤0.35銅 Cu:≤0.25力學(xué)性能●力學(xué)性能:抗拉強(qiáng)度 σb (MPa):≥1274(130)屈服強(qiáng)度 σs (MPa):≥1176(120)伸長(zhǎng)率 δ10 (%):≥6斷面收縮率 ψ (%):≥30硬度 :熱軋,≤302HB;冷拉+熱處理,≤321HB熱處理工藝●熱處理規(guī)范及金相組織:熱處理規(guī)范:淬火870℃±20℃,油冷; 回火480℃±50℃(特殊需要時(shí),±30℃)。金相組織:回火屈氏體?!窠回洜顟B(tài):熱軋鋼材以熱處理或不熱處理狀態(tài)交貨,冷拉鋼材以熱處理狀態(tài)交貨。對(duì)應(yīng)牌號(hào)對(duì)應(yīng)美國(guó)牌號(hào):9260對(duì)應(yīng)日本牌號(hào):SUP6對(duì)應(yīng)德國(guó)牌號(hào):55Si7對(duì)應(yīng)英國(guó)牌號(hào):251II60對(duì)應(yīng)法國(guó)牌號(hào):56SC7對(duì)應(yīng)國(guó)際標(biāo)準(zhǔn)牌號(hào):56SiCr7

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