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SCR415合金圓鋼-合金結(jié)構(gòu)鋼
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G4053-2003）下的合金結(jié)構(gòu)鋼材型號，屬于低碳合金滲碳鋼范疇。其主要成分包含碳（0.13-0.18%）、鉻（0.90-1.20%）等元素，具有冷變形塑性高、焊接性良好及退火狀態(tài)切削性優(yōu)異的特點。該材料抗拉強度≥735MPa，屈服強度≥490MPa，適用于制造工作速度較高且要求心部韌性的滲碳零件，如齒輪、凸輪、軸承圈及船舶主機螺釘?shù)染懿考Ｍㄟ^兩次淬火（880℃及780-820℃）和200℃回火的熱處理工藝，可優(yōu)化其綜合力學(xué)性能 [1]。執(zhí)行標準JIS G4053-2003碳含量0.13-0.18% [1]抗拉強度≥735MPa [1]熱處理溫度880℃淬火 [1]應(yīng)用領(lǐng)域齒輪/軸承制造材料形態(tài)圓棒/鋼板目錄1材料特性2成分與性能?化學(xué)成分?力學(xué)性能3應(yīng)用領(lǐng)域?機械制造領(lǐng)域?汽車工業(yè)領(lǐng)域4加工處理?熱處理規(guī)范?成型加工5質(zhì)量控制材料特性播報編輯作為低碳合金滲碳鋼，具備以下核心特性：冷變形塑性指標斷面收縮率≥45%，屈強比處于0.5-0.65間，滿足冷鐓成型工藝需求退火狀態(tài)下布氏硬度≤179HB，切削加工性能優(yōu)于常規(guī)中碳鋼 [1]焊接性良好，適用于電弧焊、氣體保護焊等常見焊接工藝成分與性能播報編輯化學(xué)成分碳（C）：0.13-0.18%（控制晶界碳化物析出）鉻（Cr）：0.90-1.20%（提高淬透性及耐磨性）錳（Mn）：0.60-0.90%（細化晶粒結(jié)構(gòu)）硫/磷：≤0.030%（保證材料純凈度） [1]力學(xué)性能經(jīng)標準熱處理后典型力學(xué)參數(shù)：抗拉強度：735-930MPa（取決于淬火冷卻介質(zhì)）屈服強度：≥490MPa（油冷工藝可達785MPa）延伸率：≥11%（確保零件成形能力）沖擊功：≥55J（滿足動態(tài)載荷工況） [1]應(yīng)用領(lǐng)域播報編輯機械制造領(lǐng)域高速傳動系統(tǒng)：齒輪、凸輪軸等關(guān)鍵運動部件連接緊固件：船用主機螺釘符合ISO 898-1 8.8級標準 [1]精密軸承：合金結(jié)構(gòu)鋼適用于制造軸承、齒輪、軸類零件等機械部件 [1]汽車工業(yè)領(lǐng)域動力總成：活塞銷壁厚公差控制±0.02mm懸掛系統(tǒng)：轉(zhuǎn)向節(jié)銷表面滲碳層深度0.8-1.2mm變速機構(gòu)：同步器齒環(huán)熱處理后表面硬度≤229HB加工處理播報編輯熱處理規(guī)范1.初次淬火：880℃保溫后采用水冷/油冷，獲得馬氏體基體組織 [1]2.二次淬火：780-820℃細化晶粒，消除網(wǎng)狀碳化物 [1]3.最終回火：200℃低溫回火降低殘余應(yīng)力，保持表面硬度 [1]成型加工冷鐓成型：最大變形量可達80%（需配合磷皂化處理）切削參數(shù)：硬質(zhì)合金刀具線速度120-150m/min，進給量0.1-0.3mm/r焊接預(yù)熱：板厚＞20mm時需150-200℃預(yù)熱，焊后緩冷 [1]質(zhì)量控制播報編輯根據(jù)JIS G4053標準要求：超聲探傷：棒材直徑＞50mm時執(zhí)行ASTM A388標準II級驗收脫碳層控制：熱軋材表面總脫碳深度≤1%直徑/厚度 [1]交貨狀態(tài)：可提供退火/正火/回火狀態(tài)產(chǎn)品，硬度梯度≤15HB/10mm的圖片(1張)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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G4053-2003）下的合金結(jié)構(gòu)鋼材型號，屬于低碳合金滲碳鋼范疇。其主要成分包含碳（0.13-0.18%）、鉻（0.90-..."}window.__abbaidu_2020_subidgetf||(window.__abbaidu_2020_subidgetf=function(){return"01000000"}) SCr415 SCr415是一種合金結(jié)構(gòu)鋼材型號，由低碳合金滲碳鋼，冷變形塑性高，焊接性良好，在退火狀態(tài)下可切削性好。SCr415用作工作速度較高而斷面不大的、心部韌性高的滲碳零件，如襯套、曲柄銷、活塞銷、活塞環(huán)、聯(lián)軸節(jié)，以及工作速度較高的齒輪、凸輪、軸和軸承圈等，船艦主機用螺釘、機車小零件、汽輪機套環(huán)等。對應(yīng)美國牌號:5115執(zhí)行標準: JIS G4053-2003化學(xué)成份:碳 C :0.13~0.18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:0.90~1.20鎳 Ni:允許殘余含量≤0.030銅 Cu:允許殘余含量≤0.030●力學(xué)性能:抗拉強度 σb (MPa):≥735(75)屈服強度 σs (MPa):≥490(50)伸長率 δ5 (%):≥11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 :≤179HB試樣尺寸:試樣毛坯尺寸為15mm●熱處理規(guī)范及金相組織:熱處理規(guī)范:淬火:第一次880℃,第二次780~820℃,水冷、油冷;回火200℃,水冷、空冷?！窠回洜顟B(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(yīng)在合同中注明。
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