-
熱(re)門關鍵詞：
沉淀(dian)硬(ying)(ying)化(hua)型(xing)鋼(gang)為馬(ma)氏(shi)體 [1] 型(xing)沉淀(dian)硬(ying)(ying)化(hua)不銹(xiu)鋼(gang)，有較高的(de)(de)(de)強(qiang)度、耐(nai)蝕(shi)性、抗(kang)氧化(hua)性，熱加工(gong)(gong)(gong)性能(neng)良好，可加工(gong)(gong)(gong)性與(yu)同等(deng)硬(ying)(ying)度的(de)(de)(de)馬(ma)氏(shi)體型(xing)不銹(xiu)鋼(gang)相似。在(zai)固(gu)溶(rong)(rong)、時效(xiao)狀(zhuang)態下，可用不銹(xiu)鋼(gang)的(de)(de)(de)焊(han)接方法進行焊(han)接。熱處(chu)(chu)理(li)規(gui)范(1)固(gu)溶(rong)(rong)1020～1060℃快(kuai)冷(leng)(leng);(2)480℃時效(xiao),經(jing)(jing)固(gu)溶(rong)(rong)處(chu)(chu)理(li)后,470～490℃空冷(leng)(leng);(3)550℃時效(xiao),經(jing)(jing)固(gu)溶(rong)(rong)處(chu)(chu)理(li)后,540～560℃空冷(leng)(leng);(4)580℃時效(xiao),經(jing)(jing)固(gu)溶(rong)(rong)處(chu)(chu)理(li)后,570～590℃空冷(leng)(leng);(5)620℃時效(xiao),經(jing)(jing)固(gu)溶(rong)(rong)處(chu)(chu)理(li)后,610～630℃空冷(leng)(leng)。用途用于制造(zao)(zao)在(zai)400℃以下工(gong)(gong)(gong)作的(de)(de)(de)高強(qiang)度耐(nai)蝕(shi)件(jian)(jian)，如(ru)飛機中的(de)(de)(de)重要螺栓、銷等(deng)緊固(gu)件(jian)(jian)、發(fa)動機零件(jian)(jian)及閥門、彈簧、刀具(ju)等(deng)添加銅的(de)(de)(de)沉淀(dian)硬(ying)(ying)化(hua)型(xing)鋼(gang)種。用于制造(zao)(zao)軸類(lei)、汽輪機部(bu)件(jian)(jian)。廣泛用于航空、石(shi)油、化(hua)工(gong)(gong)(gong)、紡織、食品、醫療器(qi)(qi)械等(deng)部(bu)門要求耐(nai)腐(fu)蝕(shi)性能(neng)的(de)(de)(de)容器(qi)(qi)、構(gou)件(jian)(jian)、工(gong)(gong)(gong)具(ju)和零件(jian)(jian)等(deng)
沉淀(dian)硬(ying)化(hua)型鋼為馬氏(shi)體(ti) [1] 型沉淀(dian)硬(ying)化(hua)不(bu)銹(xiu)(xiu)鋼，有較高的(de)強(qiang)度(du)(du)、耐蝕性、抗氧化(hua)性，熱加工(gong)(gong)性能良好，可加工(gong)(gong)性與同等(deng)硬(ying)度(du)(du)的(de)馬氏(shi)體(ti)型不(bu)銹(xiu)(xiu)鋼相(xiang)似。在(zai)(zai)固(gu)(gu)溶(rong)(rong)(rong)、時(shi)(shi)效狀態下，可用不(bu)銹(xiu)(xiu)鋼的(de)焊(han)接(jie)(jie)方法進行焊(han)接(jie)(jie)。熱處(chu)理(li)規范(1)固(gu)(gu)溶(rong)(rong)(rong)1020～1060℃快冷(leng);(2)480℃時(shi)(shi)效,經固(gu)(gu)溶(rong)(rong)(rong)處(chu)理(li)后(hou),470～490℃空(kong)(kong)冷(leng);(3)550℃時(shi)(shi)效,經固(gu)(gu)溶(rong)(rong)(rong)處(chu)理(li)后(hou),540～560℃空(kong)(kong)冷(leng);(4)580℃時(shi)(shi)效,經固(gu)(gu)溶(rong)(rong)(rong)處(chu)理(li)后(hou),570～590℃空(kong)(kong)冷(leng);(5)620℃時(shi)(shi)效,經固(gu)(gu)溶(rong)(rong)(rong)處(chu)理(li)后(hou),610～630℃空(kong)(kong)冷(leng)。用途(tu)用于(yu)制(zhi)(zhi)造在(zai)(zai)400℃以下工(gong)(gong)作的(de)高強(qiang)度(du)(du)耐蝕件，如飛機中的(de)重要(yao)螺栓(shuan)、銷等(deng)緊(jin)固(gu)(gu)件、發(fa)動(dong)機零件及閥門、彈簧、刀具(ju)等(deng)添加銅的(de)沉淀(dian)硬(ying)化(hua)型鋼種。用于(yu)制(zhi)(zhi)造軸(zhou)類、汽輪機部件。廣(guang)泛(fan)用于(yu)航空(kong)(kong)、石油、化(hua)工(gong)(gong)、紡織、食品、醫療(liao)器(qi)械等(deng)部門要(yao)求耐腐蝕性能的(de)容器(qi)、構件、工(gong)(gong)具(ju)和零件等(deng)
沉(chen)(chen)淀硬化(hua)型(xing)鋼(gang)(gang)為(wei)馬(ma)氏(shi)體(ti) [1] 型(xing)沉(chen)(chen)淀硬化(hua)不銹鋼(gang)(gang)，有較(jiao)高(gao)的強度(du)(du)、耐蝕(shi)(shi)性(xing)、抗氧化(hua)性(xing)，熱加(jia)工性(xing)能良好，可加(jia)工性(xing)與同等(deng)硬度(du)(du)的馬(ma)氏(shi)體(ti)型(xing)不銹鋼(gang)(gang)相似。在固(gu)(gu)溶(rong)(rong)、時(shi)效(xiao)(xiao)狀態下，可用不銹鋼(gang)(gang)的焊接方法進行焊接。熱處(chu)理(li)規范(1)固(gu)(gu)溶(rong)(rong)1020～1060℃快冷;(2)480℃時(shi)效(xiao)(xiao),經(jing)(jing)固(gu)(gu)溶(rong)(rong)處(chu)理(li)后(hou)(hou),470～490℃空冷;(3)550℃時(shi)效(xiao)(xiao),經(jing)(jing)固(gu)(gu)溶(rong)(rong)處(chu)理(li)后(hou)(hou),540～560℃空冷;(4)580℃時(shi)效(xiao)(xiao),經(jing)(jing)固(gu)(gu)溶(rong)(rong)處(chu)理(li)后(hou)(hou),570～590℃空冷;(5)620℃時(shi)效(xiao)(xiao),經(jing)(jing)固(gu)(gu)溶(rong)(rong)處(chu)理(li)后(hou)(hou),610～630℃空冷。用途用于(yu)制(zhi)造(zao)在400℃以下工作的高(gao)強度(du)(du)耐蝕(shi)(shi)件(jian)(jian)，如(ru)飛機(ji)中的重要(yao)螺栓、銷等(deng)緊固(gu)(gu)件(jian)(jian)、發(fa)動機(ji)零件(jian)(jian)及閥(fa)門(men)、彈簧(huang)、刀具等(deng)添加(jia)銅(tong)的沉(chen)(chen)淀硬化(hua)型(xing)鋼(gang)(gang)種。用于(yu)制(zhi)造(zao)軸類(lei)、汽(qi)輪(lun)機(ji)部件(jian)(jian)。廣泛用于(yu)航(hang)空、石油、化(hua)工、紡織、食(shi)品、醫(yi)療(liao)器械等(deng)部門(men)要(yao)求(qiu)耐腐蝕(shi)(shi)性(xing)能的容(rong)器、構件(jian)(jian)、工具和零件(jian)(jian)等(deng)
SUSXM7不(bu)銹(xiu)鋼(gang)為日(ri)本SUS系列奧氏體不(bu)銹(xiu)鋼(gang)標(biao)準(zhun)：日(ri)本JIS標(biao)準(zhun)特性：在(zai)304鋼(gang)中添加(jia)銅 ；提高了冷加(jia)工性。SUSXM7用(yong)(yong)于作冷墩等零(ling)件(jian)。它(ta)與(yu)302HQ在(zai)化學成(cheng)分規范上類似，因(yin)(yin)價(jia)格原因(yin)(yin)，它(ta)是以(yi)替代(dai)302HQ的(de)(de)身(shen)份(fen)出現的(de)(de)，但在(zai)實際使用(yong)(yong)中，仍然有(you)差(cha)異，一分錢一分貨，主(zhu)要(yao)(yao)表現在(zai)磁性較(jiao)真(zhen)正(zheng)(zheng)302HQ的(de)(de)要(yao)(yao)強，加(jia)工性能在(zai)小(xiao)線徑方面差(cha)異較(jiao)大，如(ru)加(jia)工眼鏡小(xiao)螺絲時＊好(hao)還是使用(yong)(yong)真(zhen)正(zheng)(zheng)的(de)(de)新日(ri)鐵302HQ材(cai)(cai)[1]料。當然，如(ru)果(guo)要(yao)(yao)求(qiu)不(bu)是很(hen)(hen)嚴(yan)苛(ke)，XM7還是不(bu)錯的(de)(de)選擇。SUSXM7與(yu)SUS302HQ的(de)(de)化學成(cheng)分差(cha)別主(zhu)要(yao)(yao)在(zai)一些(xie)微量元素上,而從不(bu)銹(xiu)鋼(gang)線材(cai)(cai)的(de)(de)主(zhu)要(yao)(yao)成(cheng)分來看，它(ta)們的(de)(de)規范是很(hen)(hen)相近的(de)(de)，基本上沒有(you)差(cha)別。但在(zai)實際使用(yong)(yong)中，在(zai)磁性和加(jia)工性能方面是可(ke)以(yi)做(zuo)個判斷(duan)的(de)(de)，不(bu)過這需要(yao)(yao)經驗，如(ru)果(guo)要(yao)(yao)明確斷(duan)定(ding)，＊好(hao)做(zuo)材(cai)(cai)質檢測。正(zheng)(zheng)因(yin)(yin)為XM7與(yu)302HQ主(zhu)要(yao)(yao)成(cheng)分差(cha)不(bu)多(duo)(duo)，所以(yi)很(hen)(hen)多(duo)(duo)廠(chang)家將XM7也稱為302HQ。化學成(cheng)分碳C：≤0.08錳Mn：≤2.00鎳(nie)Ni：8.50~10.50硅Si：≤1.00磷P：≤0.045硫S：≤0.030鉻Cr：17.00~19.00銅Cu：3.00~4.00力學性能屈服強度（N/mm2）:≧155抗拉強度（N/mm2）:≧450伸長(chang)率(lv)EL（%）:≧40HB: ≦187
沉(chen)(chen)淀硬(ying)(ying)(ying)化型(xing)鋼(gang)為馬氏(shi)體 [1] 型(xing)沉(chen)(chen)淀硬(ying)(ying)(ying)化不(bu)銹(xiu)鋼(gang)，有(you)較(jiao)高的(de)(de)(de)強(qiang)度、耐(nai)(nai)蝕(shi)性、抗氧化性，熱(re)加工性能良好，可加工性與同等(deng)(deng)硬(ying)(ying)(ying)度的(de)(de)(de)馬氏(shi)體型(xing)不(bu)銹(xiu)鋼(gang)相(xiang)似(si)。在固(gu)(gu)溶、時(shi)效(xiao)(xiao)狀態下，可用(yong)不(bu)銹(xiu)鋼(gang)的(de)(de)(de)焊接(jie)方(fang)法進行焊接(jie)。熱(re)處(chu)理(li)規范(1)固(gu)(gu)溶1020～1060℃快冷(leng);(2)480℃時(shi)效(xiao)(xiao),經固(gu)(gu)溶處(chu)理(li)后(hou),470～490℃空(kong)冷(leng);(3)550℃時(shi)效(xiao)(xiao),經固(gu)(gu)溶處(chu)理(li)后(hou),540～560℃空(kong)冷(leng);(4)580℃時(shi)效(xiao)(xiao),經固(gu)(gu)溶處(chu)理(li)后(hou),570～590℃空(kong)冷(leng);(5)620℃時(shi)效(xiao)(xiao),經固(gu)(gu)溶處(chu)理(li)后(hou),610～630℃空(kong)冷(leng)。用(yong)途用(yong)于(yu)制造在400℃以下工作的(de)(de)(de)高強(qiang)度耐(nai)(nai)蝕(shi)件(jian)(jian)，如飛機中的(de)(de)(de)重(zhong)要螺栓、銷等(deng)(deng)緊固(gu)(gu)件(jian)(jian)、發動機零件(jian)(jian)及閥門(men)、彈簧、刀(dao)具等(deng)(deng)添(tian)加銅(tong)的(de)(de)(de)沉(chen)(chen)淀硬(ying)(ying)(ying)化型(xing)鋼(gang)種。用(yong)于(yu)制造軸類、汽輪機部件(jian)(jian)。廣泛用(yong)于(yu)航空(kong)、石油、化工、紡織、食品、醫療(liao)器(qi)械等(deng)(deng)部門(men)要求耐(nai)(nai)腐蝕(shi)性能的(de)(de)(de)容器(qi)、構件(jian)(jian)、工具和零件(jian)(jian)等(deng)(deng)
沉淀硬化型鋼(gang)(gang)(gang)為馬氏體(ti) [1] 型沉淀硬化不銹鋼(gang)(gang)(gang)，有較(jiao)高的(de)強(qiang)度、耐蝕(shi)性、抗氧(yang)化性，熱加(jia)工(gong)性能良好，可(ke)加(jia)工(gong)性與同等硬度的(de)馬氏體(ti)型不銹鋼(gang)(gang)(gang)相似。在固溶(rong)(rong)、時效(xiao)(xiao)(xiao)(xiao)狀態下，可(ke)用(yong)不銹鋼(gang)(gang)(gang)的(de)焊(han)(han)接(jie)方法(fa)進行(xing)焊(han)(han)接(jie)。熱處理(li)規范(1)固溶(rong)(rong)1020～1060℃快冷(leng);(2)480℃時效(xiao)(xiao)(xiao)(xiao),經固溶(rong)(rong)處理(li)后,470～490℃空(kong)冷(leng);(3)550℃時效(xiao)(xiao)(xiao)(xiao),經固溶(rong)(rong)處理(li)后,540～560℃空(kong)冷(leng);(4)580℃時效(xiao)(xiao)(xiao)(xiao),經固溶(rong)(rong)處理(li)后,570～590℃空(kong)冷(leng);(5)620℃時效(xiao)(xiao)(xiao)(xiao),經固溶(rong)(rong)處理(li)后,610～630℃空(kong)冷(leng)。用(yong)途(tu)用(yong)于(yu)制(zhi)造在400℃以下工(gong)作的(de)高強(qiang)度耐蝕(shi)件(jian)，如飛機(ji)(ji)中的(de)重要(yao)螺栓、銷等緊(jin)固件(jian)、發(fa)動機(ji)(ji)零(ling)件(jian)及(ji)閥門(men)、彈簧、刀具等添加(jia)銅的(de)沉淀硬化型鋼(gang)(gang)(gang)種(zhong)。用(yong)于(yu)制(zhi)造軸類、汽(qi)輪(lun)機(ji)(ji)部(bu)件(jian)。廣泛(fan)用(yong)于(yu)航空(kong)、石(shi)油、化工(gong)、紡(fang)織、食品、醫療器械(xie)等部(bu)門(men)要(yao)求耐腐蝕(shi)性能的(de)容器、構件(jian)、工(gong)具和零(ling)件(jian)等
沉淀(dian)硬(ying)化型(xing)鋼(gang)為馬氏體(ti) [1] 型(xing)沉淀(dian)硬(ying)化不銹(xiu)鋼(gang)，有較高的(de)強度(du)、耐蝕性(xing)、抗氧化性(xing)，熱加(jia)(jia)工(gong)性(xing)能良好，可加(jia)(jia)工(gong)性(xing)與同等(deng)硬(ying)度(du)的(de)馬氏體(ti)型(xing)不銹(xiu)鋼(gang)相似。在(zai)固(gu)(gu)溶(rong)、時(shi)效狀態下(xia)，可用(yong)(yong)不銹(xiu)鋼(gang)的(de)焊接方法進行焊接。熱處(chu)(chu)理規范(1)固(gu)(gu)溶(rong)1020～1060℃快冷;(2)480℃時(shi)效,經(jing)(jing)固(gu)(gu)溶(rong)處(chu)(chu)理后,470～490℃空(kong)冷;(3)550℃時(shi)效,經(jing)(jing)固(gu)(gu)溶(rong)處(chu)(chu)理后,540～560℃空(kong)冷;(4)580℃時(shi)效,經(jing)(jing)固(gu)(gu)溶(rong)處(chu)(chu)理后,570～590℃空(kong)冷;(5)620℃時(shi)效,經(jing)(jing)固(gu)(gu)溶(rong)處(chu)(chu)理后,610～630℃空(kong)冷。用(yong)(yong)途用(yong)(yong)于制造在(zai)400℃以下(xia)工(gong)作的(de)高強度(du)耐蝕件，如飛機(ji)中的(de)重(zhong)要螺栓、銷等(deng)緊(jin)固(gu)(gu)件、發(fa)動機(ji)零件及閥門、彈簧、刀具(ju)(ju)等(deng)添加(jia)(jia)銅的(de)沉淀(dian)硬(ying)化型(xing)鋼(gang)種。用(yong)(yong)于制造軸類、汽(qi)輪機(ji)部件。廣泛(fan)用(yong)(yong)于航空(kong)、石油、化工(gong)、紡織、食品、醫(yi)療器械等(deng)部門要求耐腐蝕性(xing)能的(de)容(rong)器、構件、工(gong)具(ju)(ju)和零件等(deng)
沉淀硬化(hua)型(xing)鋼為馬氏(shi)體 [1] 型(xing)沉淀硬化(hua)不(bu)銹鋼，有較(jiao)高的(de)強(qiang)度(du)、耐蝕(shi)性(xing)(xing)、抗氧化(hua)性(xing)(xing)，熱(re)加(jia)工(gong)性(xing)(xing)能良好，可加(jia)工(gong)性(xing)(xing)與(yu)同(tong)等硬度(du)的(de)馬氏(shi)體型(xing)不(bu)銹鋼相似。在固(gu)溶、時效(xiao)(xiao)狀態(tai)下，可用不(bu)銹鋼的(de)焊接方(fang)法進行焊接。熱(re)處理(li)(li)(li)規范(1)固(gu)溶1020～1060℃快(kuai)冷(leng)(leng)(leng);(2)480℃時效(xiao)(xiao),經(jing)固(gu)溶處理(li)(li)(li)后(hou),470～490℃空(kong)冷(leng)(leng)(leng);(3)550℃時效(xiao)(xiao),經(jing)固(gu)溶處理(li)(li)(li)后(hou),540～560℃空(kong)冷(leng)(leng)(leng);(4)580℃時效(xiao)(xiao),經(jing)固(gu)溶處理(li)(li)(li)后(hou),570～590℃空(kong)冷(leng)(leng)(leng);(5)620℃時效(xiao)(xiao),經(jing)固(gu)溶處理(li)(li)(li)后(hou),610～630℃空(kong)冷(leng)(leng)(leng)。用途用于制造在400℃以下工(gong)作的(de)高強(qiang)度(du)耐蝕(shi)件(jian)(jian)，如飛機中(zhong)的(de)重要(yao)(yao)螺(luo)栓、銷等緊固(gu)件(jian)(jian)、發動(dong)機零件(jian)(jian)及閥門(men)、彈(dan)簧、刀具等添加(jia)銅的(de)沉淀硬化(hua)型(xing)鋼種。用于制造軸(zhou)類、汽輪機部(bu)件(jian)(jian)。廣泛用于航空(kong)、石油、化(hua)工(gong)、紡織、食品(pin)、醫療器械等部(bu)門(men)要(yao)(yao)求耐腐蝕(shi)性(xing)(xing)能的(de)容器、構件(jian)(jian)、工(gong)具和零件(jian)(jian)等
沉(chen)(chen)(chen)(chen)淀(dian)(dian)(dian)硬(ying)(ying)化(hua)(hua)(hua)(hua)(hua)不(bu)銹(xiu)鋼(gang)(gang)(gang)(gang)(gang)(precipitation hardening stainless steel)是(shi)指(zhi)在(zai)不(bu)銹(xiu)鋼(gang)(gang)(gang)(gang)(gang)化(hua)(hua)(hua)(hua)(hua)學成(cheng)分的(de)(de)基礎(chu)上添(tian)(tian)加(jia)(jia)不(bu)同類(lei)型(xing)(xing)(xing)(xing)、數量的(de)(de)強(qiang)化(hua)(hua)(hua)(hua)(hua)元(yuan)素(su)(su)(su)，通過(guo)沉(chen)(chen)(chen)(chen)淀(dian)(dian)(dian)硬(ying)(ying)化(hua)(hua)(hua)(hua)(hua)過(guo)程析出(chu)不(bu)同類(lei)型(xing)(xing)(xing)(xing)和(he)(he)(he)(he)數量的(de)(de)碳(tan)化(hua)(hua)(hua)(hua)(hua)物、氮化(hua)(hua)(hua)(hua)(hua)物、碳(tan)氮化(hua)(hua)(hua)(hua)(hua)物和(he)(he)(he)(he)金屬間化(hua)(hua)(hua)(hua)(hua)合(he)物，既提(ti)高(gao)鋼(gang)(gang)(gang)(gang)(gang)的(de)(de)強(qiang)度(du)又(you)保(bao)持足(zu)夠的(de)(de)韌(ren)性(xing)的(de)(de)一(yi)類(lei)高(gao)強(qiang)度(du)不(bu)銹(xiu)鋼(gang)(gang)(gang)(gang)(gang)，簡稱PH鋼(gang)(gang)(gang)(gang)(gang)。沉(chen)(chen)(chen)(chen)淀(dian)(dian)(dian)硬(ying)(ying)化(hua)(hua)(hua)(hua)(hua)不(bu)銹(xiu)鋼(gang)(gang)(gang)(gang)(gang)根據(ju)其基體(ti)(ti)(ti)的(de)(de)金相組(zu)織可(ke)以(yi)(yi)(yi)分為(wei)(wei)(wei)馬氏(shi)(shi)體(ti)(ti)(ti)型(xing)(xing)(xing)(xing)、半(ban)奧(ao)氏(shi)(shi)體(ti)(ti)(ti)型(xing)(xing)(xing)(xing)和(he)(he)(he)(he)奧(ao)氏(shi)(shi)體(ti)(ti)(ti)型(xing)(xing)(xing)(xing)3類(lei)分類(lei)根據(ju)鋼(gang)(gang)(gang)(gang)(gang)中主(zhu)要(yao)合(he)金元(yuan)素(su)(su)(su)的(de)(de)含(han)(han)量和(he)(he)(he)(he)所(suo)加(jia)(jia)的(de)(de)硬(ying)(ying)化(hua)(hua)(hua)(hua)(hua)元(yuan)素(su)(su)(su)而(er)分為(wei)(wei)(wei)四大類(lei)，即：(1)馬氏(shi)(shi)體(ti)(ti)(ti)沉(chen)(chen)(chen)(chen)淀(dian)(dian)(dian)硬(ying)(ying)化(hua)(hua)(hua)(hua)(hua)不(bu)銹(xiu)鋼(gang)(gang)(gang)(gang)(gang)，含(han)(han)碳(tan)一(yi)般低0.1%。通過(guo)加(jia)(jia)入硬(ying)(ying)化(hua)(hua)(hua)(hua)(hua)元(yuan)素(su)(su)(su)(銅，鋁(lv)，鈦(tai)和(he)(he)(he)(he)鋁(lv)等)進行強(qiang)化(hua)(hua)(hua)(hua)(hua)，以(yi)(yi)(yi)彌補(bu)強(qiang)度(du)不(bu)足(zu)。鉻(ge)(ge)含(han)(han)量一(yi)般高(gao)于(yu)17%，并加(jia)(jia)入適(shi)量鎳(nie)以(yi)(yi)(yi)改善(shan)耐(nai)蝕性(xing)；(2)馬氏(shi)(shi)體(ti)(ti)(ti)時效(xiao)不(bu)銹(xiu)鋼(gang)(gang)(gang)(gang)(gang)，含(han)(han)碳(tan)不(bu)高(gao)于(yu)0.03%以(yi)(yi)(yi)保(bao)證(zheng)馬氏(shi)(shi)體(ti)(ti)(ti)基體(ti)(ti)(ti)的(de)(de)韌(ren)性(xing)、耐(nai)蝕性(xing)、焊接性(xing)和(he)(he)(he)(he)加(jia)(jia)工性(xing)，含(han)(han)鉻(ge)(ge)不(bu)少12%以(yi)(yi)(yi)確保(bao)耐(nai)蝕性(xing)。另外還加(jia)(jia)入合(he)金元(yuan)素(su)(su)(su)鈷，進一(yi)步改善(shan)鋼(gang)(gang)(gang)(gang)(gang)的(de)(de)熱處(chu)理效(xiao)果；(3)半(ban)奧(ao)氏(shi)(shi)體(ti)(ti)(ti)型(xing)(xing)(xing)(xing)，即過(guo)渡型(xing)(xing)(xing)(xing)沉(chen)(chen)(chen)(chen)淀(dian)(dian)(dian)硬(ying)(ying)化(hua)(hua)(hua)(hua)(hua)不(bu)銹(xiu)鋼(gang)(gang)(gang)(gang)(gang)，含(han)(han)鉻(ge)(ge)不(bu)少于(yu)12%。含(han)(han)碳(tan)低，并且(qie)以(yi)(yi)(yi)鋁(lv)作(zuo)(zuo)為(wei)(wei)(wei)其主(zhu)要(yao)沉(chen)(chen)(chen)(chen)淀(dian)(dian)(dian)硬(ying)(ying)化(hua)(hua)(hua)(hua)(hua)元(yuan)素(su)(su)(su)這類(lei)型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)(gang)比(bi)馬氏(shi)(shi)體(ti)(ti)(ti)沉(chen)(chen)(chen)(chen)淀(dian)(dian)(dian)硬(ying)(ying)化(hua)(hua)(hua)(hua)(hua)不(bu)銹(xiu)鋼(gang)(gang)(gang)(gang)(gang)有更好(hao)的(de)(de)綜(zong)合(he)性(xing)能(neng)；(4)奧(ao)氏(shi)(shi)體(ti)(ti)(ti)沉(chen)(chen)(chen)(chen)淀(dian)(dian)(dian)硬(ying)(ying)化(hua)(hua)(hua)(hua)(hua)不(bu)銹(xiu)鋼(gang)(gang)(gang)(gang)(gang)，是(shi)在(zai)淬火狀(zhuang)(zhuang)態(tai)和(he)(he)(he)(he)時效(xiao)狀(zhuang)(zhuang)態(tai)都為(wei)(wei)(wei)穩定奧(ao)氏(shi)(shi)體(ti)(ti)(ti)組(zu)織的(de)(de)不(bu)銹(xiu)鋼(gang)(gang)(gang)(gang)(gang)，含(han)(han)鎳(nie)(高(gao)于(yu)25%)和(he)(he)(he)(he)錳都高(gao)，含(han)(han)鉻(ge)(ge)高(gao)于(yu)13%，以(yi)(yi)(yi)確保(bao)良好(hao)的(de)(de)耐(nai)蝕性(xing)和(he)(he)(he)(he)抗氧化(hua)(hua)(hua)(hua)(hua)性(xing)通常添(tian)(tian)加(jia)(jia)鈦(tai)、鋁(lv)、釩(fan)或磷作(zuo)(zuo)為(wei)(wei)(wei)沉(chen)(chen)(chen)(chen)淀(dian)(dian)(dian)硬(ying)(ying)化(hua)(hua)(hua)(hua)(hua)元(yuan)素(su)(su)(su)，同時加(jia)(jia)人微(wei)量硼、釩(fan)、氮等元(yuan)素(su)(su)(su)，以(yi)(yi)(yi)獲得優良的(de)(de)綜(zong)合(he)性(xing)能(neng) [1] 。
0Cr17Ni7Al屬于(yu)不銹鋼(gang)的(de)一(yi)種，特性0Cr17Ni7Al添(tian)加(jia)鋁(lv)的(de)沉(chen)淀硬化(hua)型鋼(gang)種，用作彈簧、熱圈及(ji)機器部(bu)件(jian)。化(hua)學(xue)成份錳 Mn：≤1.00硫 S ：≤0.030磷 P ：≤0.035鉻 Cr：16.00～18.00鎳 Ni：6.50～7.75銅 Cu：≤0.50力學(xue)性能(neng)抗拉強(qiang)度(du) σb (MPa)：固(gu)(gu)(gu)溶(rong)(rong),≤1030; 565℃時效(xiao)(xiao)(xiao)(xiao),≥1140; 510℃時0Cr17Ni7Al0Cr17Ni7Al效(xiao)(xiao)(xiao)(xiao),≥1230條件(jian)屈服強(qiang)度(du) σ0.2 (MPa)：固(gu)(gu)(gu)溶(rong)(rong),≤380;565℃時效(xiao)(xiao)(xiao)(xiao),≥960;510℃時效(xiao)(xiao)(xiao)(xiao),≥1030伸(shen)長(chang)率(lv) δ5 (%)：固(gu)(gu)(gu)溶(rong)(rong),≥20;565℃時效(xiao)(xiao)(xiao)(xiao),≥5;510℃時效(xiao)(xiao)(xiao)(xiao),≥4斷面收(shou)縮率(lv) ψ (%)：565℃時效(xiao)(xiao)(xiao)(xiao),≥25;510℃時效(xiao)(xiao)(xiao)(xiao),≥10硬度(du) ：固(gu)(gu)(gu)溶(rong)(rong),≤229HB;565℃時效(xiao)(xiao)(xiao)(xiao),≥363HB;510℃時效(xiao)(xiao)(xiao)(xiao),≥388HB熱處理(li)1)固(gu)(gu)(gu)溶(rong)(rong),1000～1100℃快冷(leng);2)565℃時效(xiao)(xiao)(xiao)(xiao),經(jing)固(gu)(gu)(gu)溶(rong)(rong)處理(li)后, 760±15℃保(bao)(bao)持90min,在(zai)(zai)1h內(nei)冷(leng)卻到(dao)15℃以下,保(bao)(bao)持30min,再加(jia)熱到(dao)565±10℃保(bao)(bao)持90min,空冷(leng);3)510℃時效(xiao)(xiao)(xiao)(xiao),經(jing)固(gu)(gu)(gu)溶(rong)(rong)處理(li)后,955±10℃保(bao)(bao)持10min,空冷(leng)到(dao)室溫在(zai)(zai)24h以內(nei)冷(leng)卻到(dao)-73±6℃,保(bao)(bao)持8h,再加(jia)熱到(dao)510±10℃保(bao)(bao)持60min,空冷(leng)。
沉(chen)淀(dian)硬(ying)(ying)化(hua)(hua)不(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)(gang)(gang)(precipitation hardening stainless steel)是指在(zai)不(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)(gang)(gang)化(hua)(hua)學(xue)成分(fen)的(de)(de)(de)(de)基礎上添加(jia)不(bu)(bu)(bu)同(tong)類型(xing)、數(shu)量(liang)的(de)(de)(de)(de)強(qiang)化(hua)(hua)元(yuan)(yuan)素(su)(su)，通(tong)過(guo)沉(chen)淀(dian)硬(ying)(ying)化(hua)(hua)過(guo)程(cheng)析出不(bu)(bu)(bu)同(tong)類型(xing)和數(shu)量(liang)的(de)(de)(de)(de)碳(tan)化(hua)(hua)物、氮(dan)化(hua)(hua)物、碳(tan)氮(dan)化(hua)(hua)物和金(jin)屬(shu)間化(hua)(hua)合(he)(he)物，既提高(gao)(gao)鋼(gang)(gang)(gang)的(de)(de)(de)(de)強(qiang)度又保(bao)持(chi)足夠的(de)(de)(de)(de)韌(ren)(ren)性(xing)(xing)的(de)(de)(de)(de)一類高(gao)(gao)強(qiang)度不(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)(gang)(gang)，簡稱PH鋼(gang)(gang)(gang)。沉(chen)淀(dian)硬(ying)(ying)化(hua)(hua)不(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)(gang)(gang)根據其基體(ti)(ti)(ti)(ti)(ti)的(de)(de)(de)(de)金(jin)相組(zu)織(zhi)可以分(fen)為(wei)馬(ma)氏(shi)(shi)體(ti)(ti)(ti)(ti)(ti)型(xing)、半奧(ao)(ao)氏(shi)(shi)體(ti)(ti)(ti)(ti)(ti)型(xing)和奧(ao)(ao)氏(shi)(shi)體(ti)(ti)(ti)(ti)(ti)型(xing)3類分(fen)類根據鋼(gang)(gang)(gang)中主要合(he)(he)金(jin)元(yuan)(yuan)素(su)(su)的(de)(de)(de)(de)含(han)量(liang)和所加(jia)的(de)(de)(de)(de)硬(ying)(ying)化(hua)(hua)元(yuan)(yuan)素(su)(su)而分(fen)為(wei)四大(da)類，即：(1)馬(ma)氏(shi)(shi)體(ti)(ti)(ti)(ti)(ti)沉(chen)淀(dian)硬(ying)(ying)化(hua)(hua)不(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)(gang)(gang)，含(han)碳(tan)一般低0.1%。通(tong)過(guo)加(jia)入(ru)硬(ying)(ying)化(hua)(hua)元(yuan)(yuan)素(su)(su)(銅，鋁，鈦和鋁等)進行強(qiang)化(hua)(hua)，以彌補強(qiang)度不(bu)(bu)(bu)足。鉻(ge)(ge)(ge)含(han)量(liang)一般高(gao)(gao)于(yu)17%，并加(jia)入(ru)適量(liang)鎳以改善(shan)耐蝕性(xing)(xing)；(2)馬(ma)氏(shi)(shi)體(ti)(ti)(ti)(ti)(ti)時效不(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)(gang)(gang)，含(han)碳(tan)不(bu)(bu)(bu)高(gao)(gao)于(yu)0.03%以保(bao)證馬(ma)氏(shi)(shi)體(ti)(ti)(ti)(ti)(ti)基體(ti)(ti)(ti)(ti)(ti)的(de)(de)(de)(de)韌(ren)(ren)性(xing)(xing)、耐蝕性(xing)(xing)、焊接性(xing)(xing)和加(jia)工性(xing)(xing)，含(han)鉻(ge)(ge)(ge)不(bu)(bu)(bu)少12%以確保(bao)耐蝕性(xing)(xing)。另(ling)外還加(jia)入(ru)合(he)(he)金(jin)元(yuan)(yuan)素(su)(su)鈷，進一步改善(shan)鋼(gang)(gang)(gang)的(de)(de)(de)(de)熱(re)處理(li)效果(guo)；(3)半奧(ao)(ao)氏(shi)(shi)體(ti)(ti)(ti)(ti)(ti)型(xing)，即過(guo)渡型(xing)沉(chen)淀(dian)硬(ying)(ying)化(hua)(hua)不(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)(gang)(gang)，含(han)鉻(ge)(ge)(ge)不(bu)(bu)(bu)少于(yu)12%。含(han)碳(tan)低，并且(qie)以鋁作為(wei)其主要沉(chen)淀(dian)硬(ying)(ying)化(hua)(hua)元(yuan)(yuan)素(su)(su)這類型(xing)鋼(gang)(gang)(gang)比馬(ma)氏(shi)(shi)體(ti)(ti)(ti)(ti)(ti)沉(chen)淀(dian)硬(ying)(ying)化(hua)(hua)不(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)(gang)(gang)有更好的(de)(de)(de)(de)綜(zong)合(he)(he)性(xing)(xing)能；(4)奧(ao)(ao)氏(shi)(shi)體(ti)(ti)(ti)(ti)(ti)沉(chen)淀(dian)硬(ying)(ying)化(hua)(hua)不(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)(gang)(gang)，是在(zai)淬(cui)火(huo)狀態(tai)和時效狀態(tai)都(dou)為(wei)穩定(ding)奧(ao)(ao)氏(shi)(shi)體(ti)(ti)(ti)(ti)(ti)組(zu)織(zhi)的(de)(de)(de)(de)不(bu)(bu)(bu)銹(xiu)(xiu)鋼(gang)(gang)(gang)，含(han)鎳(高(gao)(gao)于(yu)25%)和錳(meng)都(dou)高(gao)(gao)，含(han)鉻(ge)(ge)(ge)高(gao)(gao)于(yu)13%，以確保(bao)良好的(de)(de)(de)(de)耐蝕性(xing)(xing)和抗氧化(hua)(hua)性(xing)(xing)通(tong)常(chang)添加(jia)鈦、鋁、釩或磷(lin)作為(wei)沉(chen)淀(dian)硬(ying)(ying)化(hua)(hua)元(yuan)(yuan)素(su)(su)，同(tong)時加(jia)人微量(liang)硼、釩、氮(dan)等元(yuan)(yuan)素(su)(su)，以獲(huo)得優良的(de)(de)(de)(de)綜(zong)合(he)(he)性(xing)(xing)能 [1] 。
PH15-7Mo（632型(xing)）國(guo)標(biao)(biao)0Cr15Ni7Mo2Al，日本SUS632，是以2%的(de)鉬代替0Cr17Ni7Al鋼(gang)中的(de)2%的(de)鉻(ge)而開(kai)發(fa)的(de)鋼(gang)種(zhong)(zhong)。型(xing)號PH15-7Mo(632型(xing))型(xing)號①：PH15-7Mo(632型(xing))UNS編號：S15700特性及應(ying)(ying)用PH15-7Mo（632型(xing)）國(guo)標(biao)(biao)0Cr15Ni7Mo2Al，日本SUS632，是以2%的(de)鉬代替0Cr17Ni7Al鋼(gang)中的(de)2%的(de)鉻(ge)而開(kai)發(fa)的(de)鋼(gang)種(zhong)(zhong)，其(qi)基本性能與0Cr17Ni7Al鋼(gang)相似，但綜合性能比其(qi)好。在(zai)奧氏體狀態下(xia)可(ke)以承受各種(zhong)(zhong)冷成型(xing)和焊(han)接工藝(yi)，再(zai)經熱(re)處理又可(ke)獲得＊高的(de)強度；在(zai)550℃以下(xia)有優良的(de)高溫強度。應(ying)(ying)用于制造航空(kong)薄壁結(jie)構(gou)件，各種(zhong)(zhong)容(rong)器、管道、彈簧、閥膜、船軸、壓縮機盤、反應(ying)(ying)堆部件，以及多種(zhong)(zhong)化工設備等結(jie)構(gou)件。化學成分碳 C：≤0.09錳 Mn：≤1.00硅 Si：≤1.00鉻(ge) Cr：14.0~16.0鎳(nie) Ni：6.5~7.75磷 P：≤0.04硫 S：≤0.03鉬 Mo：2.0~3.0鋁 Al：0.75~1.5
