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[1]材料類型奧氏體不銹鋼 [1]化學(xué)成分Cr17-19%、Ni8-10% [1]力學(xué)性能屈服≥205MPa [1]熱處理狀態(tài)固溶處理交貨 [1]應(yīng)用領(lǐng)域緊固件制造目錄1化學(xué)成分2力學(xué)性能3加工特性4熱處理規(guī)范5應(yīng)用領(lǐng)域化學(xué)成分播報編輯碳（C）含量≤0.15%，確保材料焊接性能 [1]鉻（Cr）含量17.00-19.00%，鎳（Ni）含量8.00-10.00%，構(gòu)成奧氏體結(jié)構(gòu)基礎(chǔ) [1]添加硒（Se）≤0.15%替代硫元素，改善切削性能的同時減少腐蝕敏感性 [1]可選添加鉬（Mo）≤0.60%、銅（Cu）≤1.00%及硒（Se）≤0.15%以增強特定環(huán)境耐蝕性 [1]力學(xué)性能播報編輯抗拉強度最低值存在520MPa（資料1）與620MPa（資料2）兩個標準區(qū)間，可能對應(yīng)不同處理工藝或檢測標準 [1]伸長率指標≥40%（資料1）至≥50%（資料2），體現(xiàn)材料塑性變形能力 [1]布氏硬度≤187HB（資料1）或標注HB160（資料2），均滿足切削加工需求 [1]加工特性播報編輯專門針對自動車床加工工況設(shè)計，可承受高速切削工藝 [1]切削性能相比傳統(tǒng)303不銹鋼提升約30%，減少刀具磨損量冷成型加工時材料流動性優(yōu)于含硫易切削鋼，適用于微型零件成形熱處理規(guī)范播報編輯固溶處理溫度區(qū)間1010-1150℃，需采用水淬或油淬實現(xiàn)快速冷卻 [1]處理后奧氏體晶粒度控制在5-8級，保障機械性能穩(wěn)定性 [1]默認交貨狀態(tài)為固溶熱處理態(tài)，無需用戶二次處理即可投入加工 [1]應(yīng)用領(lǐng)域播報編輯標準緊固件：汽車用鉚釘、電子產(chǎn)品精密螺釘?shù)刃枧寇囅鞯牧慵?[1]流體控制部件：包括噴嘴、閥門閥芯等需耐介質(zhì)腐蝕的機械零件緊固件、噴嘴、閥門零件等工業(yè)零部件：適用于自動車床加工的鉚釘、螺釘?shù)葮藴始厥夤r部件：食品機械中接觸酸性物質(zhì)的傳動零件，適用于制造鉚釘、螺釘?shù)葮藴始?[1]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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","type":1,"uuid":"i2lzkxffko"},"index":1,"old":false,"tag":"ref","uuid":"i2lzkxffko"}]}]},{"key":"customDefault","title":"應(yīng)用領(lǐng)域","isArray":false,"delimiter":"","data":[{"dataType":"text","text":[{"tag":"text","text":"緊固件制造"}]}]}]},"lemmaCnt":1,"tips":{"isPolyseme":0},"encodeLemmaId":"abb5f0b7160a68dcd8c774db","versionUk":"KrIBRf5gB8gxRUd0QUP6Fw","description":"是符合日本JIS標準的奧氏體不銹鋼，通過添加硒（Se）元素替代傳統(tǒng)含硫易切削鋼，優(yōu)化了冷成型加工性能。該材料執(zhí)行固溶熱處理（1010-1150℃..."}window.__abbaidu_2020_subidgetf||(window.__abbaidu_2020_subidgetf=function(){return"01000000"}) SUS303Se SUS303Se不銹鋼是奧氏體型易切削不銹耐酸鋼，是在SUS302鋼的基礎(chǔ)上添加0.15%以上的硒，并提高一定量的磷和硫，從而改善鋼的可加工性。該鋼還耐燒蝕。用于自行車床加工標準件。 SUS303Se(18Cr-8Ni-Se)提高切削性能和抗高溫粘結(jié)性。最適用于自動車床，用于鉚釘和螺絲。 奧氏體型不銹鋼中增加碳的含量后，由于其固溶強化作用使強度得到提高。奧氏體型不銹鋼的化學(xué)成分特性是以鉻、鎳為基礎(chǔ)添加鉬、鎢、鈮和鈦等元素。由于其組織為面心立方結(jié)構(gòu)，因而在高溫下有高的強度和蠕變強度。還由于線膨脹系數(shù)大，因此比鐵素體型不銹鋼熱疲勞強度差。 PRODUCT PARAMETERS 產(chǎn)品參數(shù) 化學(xué)成分 成分 C Si Mn P S Ni Cr 最小值 - - - - - 8 17 最大值 0.15 1 2 0.2 0.06 10 19 物理性能 熔點/℃ 比熱容/kg/(kg.k)℃100~900℃ 熱導(dǎo)率/w/(m.k)100~500℃ 線脹系數(shù)/(10-6/k)100~500℃ 電阻率/（Ω.mm2/m)20℃ 縱向彈性模量/GPa20℃ 1398~1420 0.5 16.3-21.5 17.3~18.7 0.73 193 密度g/cm 硬度HBW 硬度HRB 磁性 7.93 ≤90 無 力學(xué)性能 熱處理加熱溫度0/°C 加熱方式 抗拉強度RM/MPa≥ 延伸強度Rp0.2/MPa≥ 延伸率A/%≥ 斷面收縮率Z/%≥ 1010~1150 快冷 520 205 40 60
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