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id="hwn3nfr" class="leftbox clearfix"><h1>昆明質(zhì)量圓鋼廠家直銷誠(chéng)信服務(wù) 云南貿(mào)軒商貿(mào)供應(yīng)</h1><div id="7azqxz8" class="proBig"><div id="vur8gif" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/ynmaoxuan/2019/4/636914535644624555/6369145356446245556617637.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="nxuwyp2" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/ynmaoxuan/2019/4/636914535644624555/6369145356446245556617637.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8vxu33d" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>云南省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>昆明質(zhì)量圓鋼廠家直銷</p><p><span>***更新：</span>2020-05-22 17:25:21</p><p><span id="click" >瀏覽次數(shù)：9次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="8lipriz" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">云南貿(mào)軒商貿(mào)有限公司</a></p><p><span>聯(lián)系人：</span>謝經(jīng)理</p><p><span>郵箱: </span>1339843057@qq.com</p><p><span>電話: </span>13888426708</p><p><span>傳真: </span>138_</p><p><span>網(wǎng)址: </span>http://www.maoxuan666.com</p><p><span>手機(jī): </span>138-88426708</p><p><span>地址: </span>云南省昆明經(jīng)開區(qū)宏錫路4-1-2號(hào)鐵公雞物流園二號(hào)寫字樓408號(hào)</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="ujbt3yp" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="qanpmov" class="box"><p><p style="text-indent:25px">有的碳素結(jié)構(gòu)鋼還添加微量的鋁或鈮(或其他碳化物形成元素)形成氮化物或碳化物微粒，以限制晶粒長(zhǎng)大，使鋼強(qiáng)化，節(jié)約鋼材。在中國(guó)和某些國(guó)家，為適應(yīng)專業(yè)用鋼的特殊要求，對(duì)普通碳素結(jié)構(gòu)鋼的化學(xué)成分和性能進(jìn)行調(diào)整，從而發(fā)展了一系列普通碳素結(jié)構(gòu)鋼的專業(yè)用鋼(如橋梁、建筑、鋼筋、壓力容器用鋼等)。云南貿(mào)軒商貿(mào)有限公司主營(yíng) 鍍鋅管、方管、槽鋼、角鋼、扁鋼，昆明質(zhì)量圓鋼廠家直銷，昆明質(zhì)量圓鋼廠家直銷、焊管、工字鋼、螺旋管、礦工鋼、型材，昆明質(zhì)量圓鋼廠家直銷、 C型鋼、鋼結(jié)構(gòu)附件、鋼模板、板材、管材、鋼板、瓦類等</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆明質(zhì)量圓鋼廠家直銷" src="http://tyunfile.71360.com/UpLoadFile/ynmaoxuan/2019/4/636914535644624555/6369145356446245556617637.jpg"></div><p> 40CrNiMo圓鋼化學(xué)成分及性能：40CrNiMo圓鋼有高的強(qiáng)度、韌度和良好的淬透性和抗過(guò)熱的穩(wěn)定性，但白點(diǎn)敏感性高，有回火脆性焊接性較差，焊前需經(jīng)高溫預(yù)熱，焊后需消除應(yīng)力，經(jīng)調(diào)質(zhì)后使用一般制作強(qiáng)度高、塑性好的重要零部件，氮化處理后制作特殊性能要求的重要零件，如軸類、齒輪、緊固件等。 </p> <p> 40CrNiMo圓鋼力學(xué)性能： </p> <p> 抗拉強(qiáng)度σb(MPa)：933～1011 </p> <p> 條件屈服強(qiáng)度σ0.2(MPa)：832～899 </p> <p> 伸長(zhǎng)率δ5(%)：19～20 </p> <p> 斷面收縮率ψ(%)：53～64 </p> <p> 沖擊功Akv(J)：117 </p> <p> 沖擊韌性值αku(J/cm2)：144～172 </p> <p> 硬度：274～303HB </p> <p> 試樣尺寸：光滑試樣 </p> <p> 40CrNiMo熱處理規(guī)范及金相組織： </p> <p> 熱處理規(guī)范：900℃正火,850℃油淬,620℃回火,油冷 </p> <p> 金相組織：回火索氏體 </p> <p> 云南貿(mào)軒商貿(mào)有限公司主營(yíng) 鍍鋅管、方管、槽鋼、角鋼、扁鋼、焊管、工字鋼、螺旋管、礦工鋼、型材、 C型鋼、鋼結(jié)構(gòu)附件、鋼模板、板材、管材、鋼板、瓦類等 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆明質(zhì)量圓鋼廠家直銷" src="http://tyunfile.71360.com/UploadFile/ynmaoxuan/637202136084492188/3467110.jpg"></div><div style="text-align:center;"> <span><span style="font-size:16px;"><b>云南貿(mào)軒商貿(mào)有限公司</b></span></span> </div> <span style="font-size:14px;"> <p> <strong>品牌實(shí)力口碑：</strong>西南地區(qū)大型的鋼鐵物資經(jīng)營(yíng)企業(yè)，自主研發(fā)、生產(chǎn)鋼材，自動(dòng)化工藝生產(chǎn)，確保每批次質(zhì)量穩(wěn)定，上千家品牌用件企業(yè)的選擇。 </p> <p> <strong> 產(chǎn)品性能*****：</strong>采用國(guó)內(nèi)外質(zhì)量鋼材的基礎(chǔ)件，擁有國(guó)內(nèi)外前列水平的技術(shù)和完善的檢測(cè)手段，嚴(yán)保質(zhì)量，為合作客戶平均可節(jié)省工程等10-20%的成本。 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