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4320H合金圓鋼-合金結構鋼
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.index-module_wrapperBg__OKK1h{background-image:url(https://baikebcs.bdimg.com/baike-common/sdks/drawer_bg_new.png);background-position:top;background-repeat:no-repeat;background-size:cover;height:871px;left:0;position:absolute;top:0;width:100%}.index-module_drawerHand__aRhcO{align-items:center;background-image:url(https://baikebcs.bdimg.com/baike-common/sdks/drawer_hand_bg.png);background-position:50%;background-repeat:no-repeat;background-size:contain;cursor:pointer;display:flex;height:72px;justify-content:center;position:fixed;right:0;top:50%;transform:translateY(-36px);transition:all .2s ease-in;width:20px}.index-module_drawerHand__aRhcO .index-module_taskLogo__71Tj5{height:66px;position:absolute;right:30px;top:0;width:66px}.index-module_drawerHand__aRhcO.index-module_open__qMl5O{right:480px}.index-module_reverse__OKr6k{transform:rotate(180deg)}網頁新聞貼吧知道網盤圖片視頻地圖文庫資訊采購百科百度首頁登錄注冊進入詞條全站搜索幫助首頁秒懂百科特色百科知識專題加入百科百科團隊權威合作個人中心收藏查看我的收藏0有用+104320H播報討論上傳視頻一種（滲碳）軸承鋼本詞條缺少概述圖，補充相關內容使詞條更完整，還能快速升級，趕緊來編輯吧！4320H是一種(滲碳)軸承鋼，主要用于鐵路軸承等耐沖擊、耐磨損零件。中文名4320H牌 號4320H斷面收縮率≥45(％)伸長率≥13(％)試樣尺寸試樣尺寸為25mm材料名稱：(滲碳)軸承鋼牌號：4320H標準：ASTM A534：2004●特性及適用范圍：是一種常用的合金滲碳鋼，滲碳處理后表面有相當高的硬度、耐磨性和接觸疲勞強度，同時心部還保留良好的韌性，能承受高的沖擊負荷。主要用于鐵路軸承等耐沖擊、耐磨損零件。●化學成份：碳 C ：0.17～0.23(允許偏差:±0.02)硅 Si：0.15～0.40(允許偏差:±0.03)錳 Mn：0.40～0.70(允許偏差:±0.04)硫 S ：≤0.030(允許偏差:+0.005)磷 P ：≤0.030(允許偏差:+0.005)鉻 Cr：0.35～0.65(允許偏差:±0.15)鎳 Ni：1.60～2.00(允許偏差:±0.05)銅 Cu：≤0.30(允許偏差：+0.05)鉬 Mo：0.20～0.30(允許偏差:±0.02)●力學性能：抗拉強度 σb (MPa)：≥980(100)伸長率 δ5 (%)：≥13斷面收縮率 ψ (%)：≥45沖擊韌性值 αkv (J/cm2)：≥78(8)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：淬火,第一次880±20℃,第二次800±20℃,油冷;回火,150～200℃,空冷。金相組織：滲碳層為高碳馬氏體。心部為低碳馬氏體。●交貨狀態(tài)：熱軋或鍛制鋼材以熱軋（鍛）狀態(tài)或退火狀態(tài)交貨。冷拉鋼材以退火狀態(tài)交貨。新手上路成長任務編輯入門編輯規(guī)則本人編輯我有疑問內容質疑在線客服官方貼吧意見反饋投訴建議舉報不良信息未通過詞條申訴投訴侵權信息封禁查詢與解封?2024?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?京公網安備11000002000001號window.PAGE_DATA= 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4320H 4320H是一種(滲碳)軸承鋼，主要用于鐵路軸承等耐沖擊、耐磨損零件。中文名 4320H 牌 號 4320H 斷面收縮率 ≥45(％) 伸長率 ≥13(％) 試樣尺寸 試樣尺寸為25mm材料名稱：(滲碳)軸承鋼牌號：4320H標準：ASTM A534：2004●特性及適用范圍：是一種常用的合金滲碳鋼，滲碳處理后表面有相當高的硬度、耐磨性和接觸疲勞強度，同時心部還保留良好的韌性，能承受高的沖擊負荷。主要用于鐵路軸承等耐沖擊、耐磨損零件?！窕瘜W成份：碳 C ：0.17～0.23(允許偏差±0.02)硅 Si：0.15～0.40(允許偏差±0.03)錳 Mn：0.40～0.70(允許偏差±0.04)硫 S ：≤0.030(允許偏差+0.005)磷 P ：≤0.030(允許偏差+0.005)鉻 Cr：0.35～0.65(允許偏差±0.15)鎳 Ni：1.60～2.00(允許偏差±0.05)銅 Cu：≤0.30(允許偏差：+0.05)鉬 Mo：0.20～0.30(允許偏差±0.02)●力學性能：抗拉強度 σb (MPa)：≥980(100)伸長率 δ5 (%)：≥13斷面收縮率 ψ (%)：≥45沖擊韌性值 αkv (Jcm2)：≥78(8)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：淬火,第一次880±20℃,第二次800±20℃,油冷;回火,150～200℃,空冷。金相組織：滲碳層為高碳馬氏體。心部為低碳馬氏體?！窠回洜顟B(tài)：熱軋或鍛制鋼材以熱軋（鍛）狀態(tài)或退火狀態(tài)交貨。冷拉鋼材以退火狀態(tài)交貨。
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