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SCR430合金圓鋼-合金結(jié)構(gòu)鋼
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G4053-2003標準下的合金結(jié)構(gòu)鋼，對應中國GB標準牌號20Cr、美國AISI標準5120及德國DIN標準34Cr4等國際等效牌號。該材料主要用于制造齒輪、軸類、連桿等承受磨損及沖擊負荷的機械零件，也可用于需表面淬火的部件。其化學成分以鉻（0.80%-1.10%）為核心元素，輔以硅（0.15%-0.35%）、錳（0.60%-0.90%）等合金成分，硫、磷殘余量均≤0.030%，鎳、銅殘余量分別≤0.25%和0.030%。力學性能表現(xiàn)為抗拉強度≥885MPa，屈服強度≥685MPa，硬度≤187HB，通過860℃油冷淬火與500℃回火的熱處理工藝實現(xiàn)，常以調(diào)質(zhì)或正火狀態(tài)使用。成品可按熱處理或非熱處理狀態(tài)交貨，具體標準需在合同中明確 [1]。中文名對應國內(nèi)牌號20Cr硬 度≤187HB試樣尺寸試樣毛坯尺寸為25mm伸長率≥11碳 C0.28～0.33目錄1產(chǎn)品信息2特性3適用范圍4化學成份5力學性能6熱處理規(guī)范7交貨狀態(tài)產(chǎn)品信息播報編輯執(zhí)行標準: JIS G4053-2003對應國內(nèi)牌號：20Cr對應美國牌號：5120特性播報編輯合金結(jié)構(gòu)鋼與30號鋼相比，強度及淬透性均高，合金結(jié)構(gòu)鋼鋼通常在調(diào)質(zhì)狀態(tài)下使用，也可在正火后使用。適用范圍播報編輯合金結(jié)構(gòu)鋼合金結(jié)構(gòu)鋼用作在磨損及很大沖擊負荷下工作的重要零件，如軸、小軸、平衡杠桿、搖桿、連桿、螺栓、螺帽、齒輪和各種滾子等；也可用作需經(jīng)表面淬火處理的零件。化學成份播報編輯硅 Si：0.15～0.35錳 Mn：0.60～0.90硫 S ：允許殘余含量≤0.030磷 P ：允許殘余含量≤0.030鉻 Cr：0.80～1.10鎳 Ni：允許殘余含量≤0.25銅 Cu：允許殘余含量≤0.030力學性能播報編輯抗拉強度 σb (MPa)：≥885(90)屈服強度 σs (MPa)：≥685(70)伸長率 δ5 (%)：≥11斷面收縮率 ψ (%)：≥45沖擊功 Akv (J)：≥47沖擊韌性值 αkv (J/cm2)：≥59(6)硬度 ：≤187HB試樣尺寸：試樣毛坯尺寸為25mm熱處理規(guī)范播報編輯熱處理規(guī)范：淬火860℃,油冷；回火500℃,水冷、油冷。交貨狀態(tài)播報編輯以熱處理（正火、退火或高溫回火）或不熱處理狀態(tài)交貨，交貨狀態(tài)應在合同中注明。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(nèi)容質(zhì)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(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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C","isArray":false,"delimiter":"","data":[{"dataType":"enum","text":[{"tag":"text","text":"0.28～0.33"}],"value":"0.28～0.33"}]}]},"lemmaCnt":1,"tips":{"isPolyseme":0},"encodeLemmaId":"6774351a0b0554499a335647","versionUk":"IPa-kNv8gziaY33NCEJ2DA","description":"是日本JIS G4053-2003標準下的合金結(jié)構(gòu)鋼，對應中國GB標準牌號20Cr、美國AISI標準5120及德國DIN標準34Cr4等國際等效牌號..."}window.__abbaidu_2020_subidgetf||(window.__abbaidu_2020_subidgetf=function(){return"01000000"}) SCr430 合金結(jié)構(gòu)鋼SCr430鋼通常在調(diào)質(zhì)狀態(tài)下使用，也可在正火后使用。合金結(jié)構(gòu)鋼SCr430用作在磨損及很大沖擊負荷下工作的重要零件，如軸、小軸、平衡杠桿、搖桿、連桿、螺栓、螺帽、齒輪和各種滾子等;也可用作需經(jīng)表面淬火處理的零件。折疊簡介執(zhí)行標準: JIS G4053-2003對應國內(nèi)牌號:20Cr對應美國牌號:5120適用范圍合金結(jié)構(gòu)鋼SCr430與30號鋼相比，強度及淬透性均高，合金結(jié)構(gòu)鋼SCr430鋼通常在調(diào)質(zhì)狀態(tài)下使用，也可在正火后使用。合金結(jié)構(gòu)鋼SCr430用作在磨損及很大沖擊負荷下工作的重要零件，如軸、小軸、平衡杠桿、搖桿、連桿、螺栓、螺帽、齒輪和各種滾子等;也可用作需經(jīng)表面淬火處理的零件。折疊化學成份硅 Si:0.15~0.35錳 Mn:0.60~0.90硫 S :允許殘余含量≤0.030磷 P :允許殘余含量≤0.030鉻 Cr:0.80~1.10鎳 Ni:允許殘余含量≤0.25銅 Cu:允許殘余含量≤0.030折疊力學性能抗拉強度 σb (MPa):≥885(90)屈服強度 σs (MPa):≥685(70)伸長率 δ5 (%):≥11斷面收縮率 ψ (%):≥45沖擊功 Akv (J):≥47沖擊韌性值 αkv (J/cm²):≥59(6)硬度 :≤187HB試樣尺寸:試樣毛坯尺寸為25mm熱處理規(guī)范熱處理規(guī)范:淬火860℃,油冷;回火500℃,水冷、油冷。折疊交貨狀態(tài)以熱處理(正火、退火或高溫回火)或不熱處理狀態(tài)交貨，交貨狀態(tài)應在合同中注明。
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