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.block-item .block-title{color:#333;font-size:20px;line-height:1.5}.page-footer-content .block-item .block-title svg{color:#aaa;margin-right:10px}.page-footer-content .block-item .block-content{padding:5px 0 0 30px;width:210px}.page-footer-content .block-item .block-content>a{color:#666;cursor:pointer;float:left;margin-bottom:5px;position:relative;-webkit-text-decoration:none;text-decoration:none;width:90px}.page-footer-content .block-item .block-content>a:hover{color:#338de6;-webkit-text-decoration:none;text-decoration:none}.page-footer-content .block-item .block-content .block-content-new-icon{height:7px;left:52px;position:absolute;top:3px}網(wǎng)頁新聞貼吧知道網(wǎng)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(quán)威合作個人中心1Cr18Ni9Ti播報討論上傳視頻不銹鋼收藏查看我的收藏0有用+10不銹鋼1Cr18Ni9Ti就是普通的不銹鋼（SUS321）,其組織類別為奧氏體型。1Cr18Ni9Ti中1、18、9分別代表碳（‰）、鉻（%）、鎳（%）的含量。是中國的不銹鋼材料牌號。用于制作耐酸容器及設(shè)備襯里，抗磁儀表、醫(yī)療器械，具有較好耐晶間腐蝕性。中文名1Cr18Ni9Ti屬 性不銹鋼硬 度≤187HB;≤90HRB;≤200HV收縮率ψ55%硅 Si≤1.00%。目錄1化學(xué)成份2行業(yè)規(guī)范3機械性能4主要區(qū)別?標(biāo)樣?對應(yīng)各國牌號5鋼廠規(guī)格化學(xué)成份播報編輯碳 C ：≤0.12%。硅 Si：≤1.00%。錳 Mn：≤2.00%。硫 S ：≤0.030%。磷 P ：≤0.035%。鉻 Cr：17.00～19.00%。鎳 Ni：8.00～11.00%。鈦 Ti：5*(C%-0.02)～0.80%。行業(yè)規(guī)范播報編輯熱處理規(guī)范及金相組織：熱處理規(guī)范：1)固溶920～1150℃快冷;2)根據(jù)需方要求可進行穩(wěn)定化處理, 熱處理溫度為850～930℃,但必須在合同中注明。金相組織：組織特征為奧氏體型。交貨狀態(tài)：一般以熱處理狀態(tài)交貨，其熱處理種類在合同中注明；未注明者，按不熱處理狀態(tài)交貨。機械性能播報編輯抗拉強度σb(MN/m2) ≥550屈服強度σs(MN/m2) ≥200伸長率δ5（%）〉=40我國的1Cr18Ni9Ti相當(dāng)于美國AISI321,0Cr18Ni9相當(dāng)于AISI304，1Cr18Ni9相當(dāng)于302，0Cr17Ni12Mo2（新號022Cr17Ni12Mo2）相當(dāng)于AISI3161Cr18Ni9Ti=中國臺灣321=國際標(biāo)準(zhǔn)X7CrNiTi18-10=俄羅斯12X18H10T=日本SUS321= 德國 X6CrNi18-10=美國ASTM A276 321如果用于700℃的高溫，1Cr18Ni9Ti 應(yīng)該是可以勝任的，因為它既是奧氏體不銹鋼，又是應(yīng)用很廣泛的奧氏體熱強鋼，不過最好不要超過750℃，其熱處理為固溶處理，即加熱至1000℃以上，保溫一定時間 后水淬，再采用高于使用溫度60~100℃做時效。主要區(qū)別播報編輯兩者的含碳量不一樣，1Cr18Ni9Ti高。鉻、鎳的含量一樣，分別是18%和9%。這樣的話，由于06Cr19Ni10(0Cr18Ni9)含碳量低，強度較1Cr18Ni9Ti低，耐腐蝕性比1Cr18Ni9Ti好。但是由于1Cr18Ni9Ti含有抗晶界腐蝕的鈦，因此可以通過熱處理提高它的抗晶界腐蝕能力。常溫常態(tài)下可以代用。概括地講，1Cr18Ni9Ti是落后的不銹鋼生產(chǎn)工藝的產(chǎn)品代表。真正需要用1Cr18Ni9Ti者，也可以改為06Cr18Ni11Ti(0Cr18Ni10Ti)。使用加Ti的06Cr18Ni11Ti(0Cr18Ni10Ti)還是不加Ti的06Cr19Ni10(0Cr18Ni9)，取決于不銹鋼的使用環(huán)境是否屬晶間腐蝕環(huán)境。標(biāo)樣美國加聯(lián)提供進口1Cr18Ni9Ti光譜和化學(xué)標(biāo)樣，對應(yīng)的標(biāo)樣標(biāo)準(zhǔn)有美國標(biāo)準(zhǔn)局（ASTM）、德國標(biāo)準(zhǔn)、法國標(biāo)準(zhǔn)等均勻性很好，主要應(yīng)用于火花直讀光譜儀和X熒光光譜儀（XRF）等儀器。對應(yīng)各國牌號對應(yīng)德國牌號：X6CrNiTi18 10對應(yīng)英國牌號：321S20對應(yīng)法國牌號：Z10CNT18-11對應(yīng)日本牌號：SUS 321鋼廠規(guī)格播報編輯品名規(guī)格/mm生產(chǎn)廠家品名規(guī)格/mm材質(zhì)光亮圓棒3.0-25太鋼熱軋鋼板4-101Cr18Ni9Ti熱軋圓鋼12-50太鋼熱軋鋼板8-101Cr18Ni9Ti熱軋圓鋼Ф100-130太鋼熱軋鋼板12-161Cr18Ni9Ti熱軋圓鋼Ф140-150太鋼熱軋鋼板18-201Cr18Ni9Ti熱軋圓鋼Ф160-170太鋼熱軋鋼板22-281Cr18Ni9Ti熱軋圓鋼Ф16-40太鋼熱軋鋼板30-341Cr18Ni9Ti熱軋圓鋼Ф200-280太鋼鍛打鋼板80-1001Cr18Ni9Ti熱軋圓鋼Ф50-70太鋼鍛打鋼板1601Cr18Ni9Ti熱軋圓鋼Ф50-90太鋼鍛打鋼板1701Cr18Ni9Ti熱軋圓鋼Ф50-95太鋼鍛打鋼板1801Cr18Ni9Ti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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1Cr18Ni9Ti是一種較典型的18-8型奧氏體不銹鋼，是在1Cr18Ni9的基礎(chǔ)上添加Ti元素而成，Ti的加入主要是未來防止合金在500~800°C左右的敏化溫度出現(xiàn)晶間腐蝕。Ti元素是一種強碳化物形成的元素，奧氏體不銹鋼中，局部Cr元素和C反應(yīng)生成碳化物，造成貧Cr，從而導(dǎo)致晶間腐蝕，Ti的加入形成TiC，防止Cr的消耗，一定程度上降低了晶間腐蝕傾向。其他牌號如1Cr18Ni9Nb也是利用該原理。1Cr18Ni9Ti有優(yōu)良的抗氧化酸均勻腐蝕性能，但耐應(yīng)力腐蝕性能和耐點蝕性能較差。該牌號有良好的塑性和韌性，加工硬化速率較高，不可進行熱處理強化，只能通過冷加工提高強度。1Cr18Ni9Ti在航空、航天領(lǐng)域使用非常廣泛，但該牌號有無法解決的固有缺陷，合金Ti的碳化物是一種硬度很高的相，在基體中分布會造成缺陷，進行冷變形加工時很容易開裂，同時，對于某些需求光亮表面的產(chǎn)品，基體中鑲嵌的TiC會通過加工暴露在表面，降低產(chǎn)品表面質(zhì)量。Ti在基體中的分布對合金質(zhì)量影響非常大，一些Ti元素分布不均勻的部位容易發(fā)生晶間腐蝕。已有較多的新版材料標(biāo)準(zhǔn)已刪除該牌號，如GB1220-2007，GB4232-2019等，而國家軍用標(biāo)準(zhǔn)GJB 2295A-2006，雖然將該牌號納入，但也注明一般情況下不推薦使用。該牌號在航空航天領(lǐng)域用量非常大，但推薦使用1Cr18Ni9（302）或0Cr18Ni9（304）代替。該牌號的相近牌號有：美國SAE30321、AISI321、日本SUS321 應(yīng)用：1Cr18Ni9T有大量應(yīng)用，產(chǎn)品種類包括各類螺栓、螺釘、螺柱、螺母、鉚釘、墊圈、管接頭、卡箍等，標(biāo)準(zhǔn)涵蓋了國標(biāo)、軍標(biāo)、航空標(biāo)準(zhǔn)、航天標(biāo)準(zhǔn)以及較多的企業(yè)標(biāo)準(zhǔn)。選用該牌號的標(biāo)準(zhǔn)一般都在2000年左右或更早。 （此牌號除專用外，一般情況下不推薦使用。在07版的標(biāo)準(zhǔn)中已取消此牌號。根據(jù)此牌號機械性能、上述說明并參考標(biāo)準(zhǔn)GB/T 3098.6的規(guī)定，該牌號材料固溶處理后可用于生產(chǎn)A1-50、A2-50、性能等級的螺栓、螺釘、螺母（螺母高度m≥0.8D）和A2-035等級的薄螺母（螺母高度0.5D≤m<0.8D），以及等級200HV墊圈，等級A2-70的產(chǎn)品固溶后達(dá)不到要求，只能進行加工硬化處理，原料不可作固溶處理。 ） PRODUCT PARAMETERS 產(chǎn)品參數(shù) 化學(xué)成分 成分 C Si Mn P S Cr Ni 更多 最小值 - - - - - 17 8 Ti:5(C-0.02)~0.8 最大值 0.12 1 2 0.035 0.03 19 11 1Cr18Ni9Ti 機械性能 直徑 熱處理 抗拉強度 屈服點 延伸率 斷面收縮率 硬度 d σb σs δ ψ HBW mm Mpa Mpa % % d=25 固溶920~1150°C快冷 ≥520 ≥205 ≥40 ≥50 ≤187 物理性能：熔化溫度范圍 1400~1425°C；材料固溶狀態(tài)下無磁?；瘜W(xué)性能：在800~900°C以下的空氣及航空燃料燃燒產(chǎn)物的氣氛中有穩(wěn)定抗氧化性。合金易產(chǎn)生晶間腐蝕，一般可在850~900°C區(qū)間保溫4~6h進行穩(wěn)定化處理，以減小晶間腐蝕傾向。材料的加工性能：1Cr18Ni9Ti不可進行熱處理強化，熱處理一般只進行固溶處理，固溶狀態(tài)下組織為穩(wěn)定的奧氏體，有時含少量的δ鐵素體。在冷變形時，部分奧氏體轉(zhuǎn)變?yōu)樾巫凂R氏體。奧氏體不銹鋼都有晶間腐蝕傾向，一般不宜在600°C左右的敏化溫度范圍停留，該牌號通過Ti防止晶間腐蝕。牌號的固溶溫度應(yīng)嚴(yán)格控制，溫度較低時，Cr的碳化物溶解不充分，會降低耐蝕性，溫度過高（高于1150°C）時，TiC大量溶入奧氏體基體，會導(dǎo)致Ti失去固定C的作用，易于產(chǎn)生晶間腐蝕，同時溫度過高還會使δ鐵素體含量增加，晶粒長大。固溶處理后快冷，防止冷卻過程中碳化物的析出，降低耐蝕性。為提高抗晶間腐蝕能力，可在850~900°C保溫4h進行穩(wěn)定化處理。
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