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316L不銹鋼板特殊不銹鋼-奧氏體不銹鋼300系列
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.block-content-new-icon{height:7px;left:52px;position:absolute;top:3px}網(wǎng)頁(yè)新聞貼吧知道網(wǎng)盤(pán)圖片視頻地圖文庫(kù)資訊采購(gòu)百科百度首頁(yè)登錄注冊(cè)進(jìn)入詞條全站搜索幫助首頁(yè)秒懂百科特色百科知識(shí)專題加入百科百科團(tuán)隊(duì)權(quán)威合作個(gè)人中心316l播報(bào)討論上傳視頻不銹鋼材料牌號(hào)收藏查看我的收藏0有用+10同義詞316L不銹鋼板（316L不銹鋼板）一般指316l316L是一種不銹鋼的牌號(hào)，屬于美國(guó)ASTM標(biāo)準(zhǔn)體系，對(duì)應(yīng)中國(guó)GB標(biāo)準(zhǔn)體系中的牌號(hào)為022Cr17Ni12Mo2，統(tǒng)一數(shù)字代號(hào)為S31603。 [2]不銹鋼是在大氣、水、酸、堿和鹽等溶液或其他腐蝕介質(zhì)中具有一定化學(xué)穩(wěn)定性的鋼的總稱。在不銹鋼中，不銹性和耐蝕性起關(guān)鍵作用的是合金元素鉻，隨著含鉻量的增加，其不銹性和耐蝕性也隨之增加。不銹鋼按組織結(jié)構(gòu)不同，分為奧氏體型、奧氏體 + 鐵素體型、鐵素體型、馬氏體型和沉淀硬化型不銹鋼五類。 [3]316L不銹鋼屬于奧氏體不銹鋼。 [4]奧氏體型不銹鋼的組織結(jié)構(gòu)是面心立方晶格，無(wú)磁性，不能通過(guò)熱處理進(jìn)行強(qiáng)化，只能采用冷加工強(qiáng)化手段來(lái)提高其強(qiáng)度。奧氏體型不銹鋼具有耐蝕性，常溫及低溫下的塑性、韌性良好，易成形，焊接性良好，在工業(yè)中應(yīng)用最為廣泛。其產(chǎn)量約占不銹鋼產(chǎn)量的 70%。其產(chǎn)品有板材、棒材、鋼管、鋼帶、鋼絲及鍛件等。 [3]316L不銹鋼具有良好的敏化態(tài)耐晶間腐蝕性能，適用于制造厚截面尺寸的焊接部件和設(shè)備，如石油化工、化肥、造紙、印染及核工業(yè)用設(shè)備的耐蝕材料。 [5]中文名316L外文名AISI 316L主要成分Cr，Ni，Mo標(biāo)準(zhǔn)牌號(hào)022Cr17Ni12Mo2目錄1化學(xué)成分2抗腐蝕性3力學(xué)性能4熱處理5金相組織6區(qū)別辨別化學(xué)成分播報(bào)編輯碳 C ：≤0.030硅 Si： ≤1.00錳 Mn：≤2.00硫 S ： ≤0.030磷 P ： ≤0.045鉻 Cr：16.00～18.00鎳 Ni：10.00～14.00鉬 Mo：2.00～3.00抗腐蝕性播報(bào)編輯316L因其優(yōu)異的耐腐蝕性在化工行業(yè)有著廣泛的應(yīng)用，316L也是屬于18-8型奧氏體不銹鋼的衍生鋼種，添加有2～3%的Mo元素。在316L的基礎(chǔ)上，也衍生出很多鋼種，比如添加少量Ti后衍生出316Ti，添加少量N后衍生出316N，增加Ni、Mo含量衍生出317L。市場(chǎng)上現(xiàn)有的316L大部分是按照美標(biāo)來(lái)生產(chǎn)的。出于成本考慮，鋼廠一般把產(chǎn)品的Ni含量盡量往下限靠。美標(biāo)規(guī)定，316L的Ni含量為10～14%，日標(biāo)則規(guī)定，316L的Ni含量為12～15%。按最低標(biāo)準(zhǔn)，美標(biāo)和日標(biāo)在Ni含量上有2%的區(qū)別，體現(xiàn)到價(jià)格上還是相當(dāng)巨大的，所以客戶在選購(gòu)316L產(chǎn)品時(shí)還是需要看清，產(chǎn)品是參照ASTM還是JIS標(biāo)準(zhǔn)。316L的Mo含量使得該鋼種擁有優(yōu)異的抗腐蝕能力，可以安全的應(yīng)用于含Cl－等鹵素離子環(huán)境。由于316L主要應(yīng)用的是其化學(xué)性能，鋼廠對(duì)316L的表面檢查要求稍低（相對(duì)304），對(duì)表面要求較高的客戶要加強(qiáng)表面檢查力度。力學(xué)性能播報(bào)編輯抗拉強(qiáng)度 σb (MPa)：≥480條件屈服強(qiáng)度 σ0.2 (MPa)：≥177伸長(zhǎng)率 δ5 (%)：≥40斷面收縮率 ψ (%)：≥60硬度 ：≤187HB;≤90HRB;≤200HV密度：7.98g/cm3；比熱容比（20℃）：0.502J/(g*K)熱導(dǎo)率（W/(m*K)）100℃300℃500℃15.118.420.9熱處理播報(bào)編輯固溶1010～1150℃快冷。金相組織播報(bào)編輯組織特征為奧氏體不銹鋼。區(qū)別辨別播報(bào)編輯SUS316L不銹鋼最常用的兩種不銹鋼304，316（或?qū)?yīng)于德/歐標(biāo)的1.4308,1.4408），316與304在化學(xué)成分上的最主要區(qū)別就是316含Mo，而且一般公認(rèn)，316的耐腐蝕性更好些，比304在高溫環(huán)境下更耐腐蝕。 [1]所以在高溫環(huán)境下，工程師一般都會(huì)選用316材料的零部件。但所謂事無(wú)絕對(duì)，在濃硫酸環(huán)境下，再高溫度也千萬(wàn)別用316.不然這事可就出大了。學(xué)機(jī)械的人都學(xué)過(guò)螺紋，還記得為了防止在高溫情況下螺紋咬死，需要涂抹的一種黑乎乎的固體潤(rùn)滑劑吧：二硫化鉬（MoS2）,從中能得出2點(diǎn)結(jié)論：一：Mo確實(shí)是一種耐高溫的物質(zhì)。二：鉬很容易和高價(jià)硫離子反應(yīng)生成硫化物。所以沒(méi)有任何一種不銹鋼是超級(jí)無(wú)敵耐腐蝕的。說(shuō)到底，不銹鋼就是一塊雜質(zhì)（不過(guò)這些雜質(zhì)可都比鋼更耐腐蝕）較多的鋼，是鋼就可以和別的物質(zhì)反應(yīng)。新手上路成長(zhǎng)任務(wù)編輯入門(mén)編輯規(guī)則本人編輯我有疑問(wèn)內(nèi)容質(zhì)疑在線客服官方貼吧意見(jiàn)反饋投訴建議舉報(bào)不良信息未通過(guò)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(tái)?|?京ICP證030173號(hào)?京公網(wǎng)安備11000002000001號(hào)window.PAGE_DATA= 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2.4856金相組織結(jié)構(gòu):該合金在固溶狀態(tài)的組織為奧氏體基體和少量的TiN、NbC、和M6C相,經(jīng)650~900攝氏度長(zhǎng)期時(shí)效后，所析出的相為γ"、δ、M23C6和M6C。1.對(duì)氧化和還原環(huán)境的各種腐蝕介質(zhì)都具有非常出色的抗腐蝕能力2.優(yōu)秀的抗點(diǎn)腐蝕和縫隙腐蝕的能力，并且不會(huì)產(chǎn)生由于氯化物引起的應(yīng)力腐蝕開(kāi)裂3.優(yōu)秀的耐無(wú)機(jī)酸腐蝕能力，如硝酸、磷酸、硫酸、鹽酸以及硫酸和鹽酸的混合酸等4.優(yōu)秀的耐各種無(wú)機(jī)酸混合溶液腐蝕的能力5.溫度達(dá)40℃時(shí)，在各種濃度的鹽酸溶液中均能表現(xiàn)出很好的耐蝕性能6.良好的加工性和焊接性，無(wú)焊后開(kāi)裂敏感性7.具有壁溫在-196～450℃的壓力容器的制造認(rèn)證8.經(jīng)美國(guó)腐蝕工程師協(xié)會(huì)NACE 標(biāo)準(zhǔn)認(rèn)證（MR-01-75）符合酸性氣體環(huán)境使用的最高標(biāo)準(zhǔn)等級(jí)VII 2.4856化學(xué)成分：合金 % 鎳 鉻 鉬 鈮鉭 鐵 鋁 鈦 碳 錳 硅 銅 磷 硫625 最小 58 20 8 3.15 最大 23 10 4.15 5 0.4 0.4 0.1 0.5 0.5 0.5 0.015 0.015
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