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20CRMNTIH合金圓鋼-合金結(jié)構(gòu)鋼
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名20CrMnTi硅 Si0.17～0.37錳 Mn0.80～1.15硫 S 允許殘余含量≤0.035目錄1標(biāo)準(zhǔn)2材料簡介3適用范圍4化學(xué)成份5規(guī)格6硬度7大小8力學(xué)性能標(biāo)準(zhǔn)播報(bào)編輯執(zhí)行標(biāo)準(zhǔn) GB/T 5216-2004數(shù)字代號 A26202材料簡介播報(bào)編輯齒輪鋼用于制造截面小于30mm的承受高速重載、沖擊及摩擦的重要零件如齒輪、齒圈、齒輪軸、十字頭等。適用范圍播報(bào)編輯是性能良好的滲碳鋼，淬透性較高，經(jīng)滲碳淬火后具有硬而耐磨的表面與堅(jiān)韌的心部，具有較高的低溫沖擊韌性，焊接性中等，正火后可切削性良好。用于制造截面<30mm的承受高速、中等或重載荷、沖擊及摩擦的重要零件，如齒輪、齒圈、齒輪軸十字頭等。 是18CrMnTi的代用鋼，廣泛用作滲碳零件，在汽車.拖拉機(jī)工業(yè)用于截面在30mm以下，承受高速.中或重負(fù)荷以及受沖擊.摩擦的重要滲碳零件，如齒輪.軸.齒圈.齒輪軸.滑動軸承的主軸.十字頭.爪形離合器.蝸桿等化學(xué)成份播報(bào)編輯齒輪鋼碳 C ：0.17～0.23硅 Si：0.17～0.37錳 Mn：0.80～1.15硫 S ：允許殘余含量≤0.035磷 P ：允許殘余含量≤0.035鉻 Cr：1.00～1.35鎳 Ni：允許殘余含量≤0.030銅 Cu：允許殘余含量≤0.030鈦 Ti：0.04～0.10規(guī)格播報(bào)編輯產(chǎn)品名稱規(guī)格/mm材質(zhì)冷拉光圓Ф3.0-100熱軋鋼板5-100熱軋圓鋼Ф100-200熱軋圓鋼Ф20-100熱軋圓鋼Ф200-400硬度播報(bào)編輯退火或高溫回火,≤217HB,壓痕直徑≥4.1m交貨狀態(tài)以軋制或鍛制狀態(tài)交貨。根據(jù)需方要求也可以熱處理（正火、退火或高溫回火）狀態(tài)交貨。交貨狀態(tài)應(yīng)在合同中注明。大小播報(bào)編輯鋼錠：9″-62″方錠、圓錠、八角錠、半圓錠、25-60T VC錠；電渣錠：5-15T圓錠等50余種；型材：Φ40-130mm熱軋圓鋼、60-160mm熱軋方鋼；鍛材：Φ70-Φ1000mm鍛制圓鋼、70-880鍛制方鋼、寬300-850mm x 高300-850mm x 長1000-8000mm模塊；力學(xué)性能播報(bào)編輯抗拉強(qiáng)度σb (MPa)： ≥1080(110)屈服強(qiáng)度σs (MPa)： ≥835(85)伸長率δ5 (%)： ≥10斷面收縮率ψ (%)： ≥45沖擊功Akv (J)： ≥55沖擊韌性值αkv (J/cm2)： ≥69(7)硬度： ≤217HB熱處理規(guī)范淬火：第一次880℃，第二次870℃，油冷；回火200℃，水冷、空冷密度及彈性模量密度：7.8 × 10^3 kg/m3彈性模量：207GPa泊松比：0.29導(dǎo)熱率：1.26 × 10-51/℃新手上路成長任務(wù)編輯入門編輯規(guī)則本人編輯我有疑問內(nèi)容質(zhì)疑在線客服官方貼吧意見反饋投訴建議舉報(bào)不良信息未通過詞條申訴投訴侵權(quán)信息封禁查詢與解封?2025?Baidu?使用百度前必讀?|?百科協(xié)議?|?隱私政策?|?百度百科合作平臺?|?京ICP證030173號?京公網(wǎng)安備11000002000001號window.PAGE_DATA= 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