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022Cr25Ni7Mo4N特殊不銹鋼-雙相不銹鋼卷板
專業(yè)為您提供雙相不銹鋼卷板牌號，材質(zhì)單，在線報價單 歡迎選購
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.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(jìn)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(tuán)隊權(quán)威合作個人中心收藏查看我的收藏0有用+10播報討論上傳視頻奧氏體-鐵素體雙相不銹鋼牌號是GB/T20878-2007標(biāo)準(zhǔn)中定義的奧氏體-鐵素體雙相不銹鋼牌號，對應(yīng)統(tǒng)一數(shù)字代號S25073。該材料采用超低碳設(shè)計（C≤0.030%），通過高鉻（24.00-26.00%）、鉬（3.00-5.00%）和氮（0.24-0.32%）的合金體系形成雙相組織結(jié)構(gòu)，兼具鐵素體的耐腐蝕性與奧氏體的高強(qiáng)度特性。其耐點蝕當(dāng)量PREN值超過40，在含氯離子環(huán)境中展現(xiàn)優(yōu)異抗腐蝕能力，廣泛應(yīng)用于海洋工程、石化設(shè)備等極端工況領(lǐng)域 [1]。標(biāo)準(zhǔn)號GB/T20878-2007對應(yīng)牌號S25073 [2]抗拉強(qiáng)度≥795MPa屈服強(qiáng)度≥500MPa斷后伸長率≥15%硬度值HBW≤310，HRC≤32耐蝕當(dāng)量PREN＞40應(yīng)用領(lǐng)域海洋工程目錄1化學(xué)成分與標(biāo)準(zhǔn)規(guī)范2性能特征3生產(chǎn)工藝與應(yīng)用領(lǐng)域4國內(nèi)外對應(yīng)牌號5質(zhì)量管控要求化學(xué)成分與標(biāo)準(zhǔn)規(guī)范播報編輯材料執(zhí)行GB/T20878-2007標(biāo)準(zhǔn)要求，化學(xué)成分需滿足：碳（C）≤0.030%鉻（Cr）24.00-26.00%鎳（Ni）6.00-8.00%鉬（Mo）3.00-5.00%氮（N）0.24-0.32%錳（Mn）≤1.20%、硅（Si）≤0.80%、磷（P）≤0.035%、硫（S）≤0.020%標(biāo)準(zhǔn)允許在合同或產(chǎn)品標(biāo)準(zhǔn)中調(diào)整元素含量范圍，但強(qiáng)調(diào)不同產(chǎn)品標(biāo)準(zhǔn)間應(yīng)保持成分統(tǒng)一性。性能特征播報編輯固溶處理后的組織由約50%鐵素體和50%奧氏體構(gòu)成，具有以下特性：機(jī)械性能：抗拉強(qiáng)度≥795MPa，屈服強(qiáng)度≥500MPa，延伸率≥15% [1]耐腐蝕性：在含氯介質(zhì)中抗點蝕、縫隙腐蝕及應(yīng)力腐蝕能力顯著，使用溫度上限為570°F（約300℃） [1]焊接性能：雙相組織有效抑制焊接熱影響區(qū)的晶粒粗化，適用于厚壁構(gòu)件焊接生產(chǎn)工藝與應(yīng)用領(lǐng)域播報編輯棒材生產(chǎn)流程包括鋼坯驗收、加熱、軋制、剪切、檢驗等工序。截至2025年，主要應(yīng)用于：石油天然氣設(shè)備：海底管道、熱交換器化工設(shè)備：反應(yīng)容器、壓力管道系統(tǒng)環(huán)保工程：煙氣脫硫裝置、海水淡化設(shè)備 [1]在海洋工程領(lǐng)域，該材料因優(yōu)異的耐海水腐蝕性能，被用于制造船舶傳動軸、海水泵閥等關(guān)鍵部件。國內(nèi)外對應(yīng)牌號播報編輯美國ASTM標(biāo)準(zhǔn)：S32750 [1-2]歐洲EN標(biāo)準(zhǔn)：X2CrNiMoN25-7-4（1.4410）瑞典牌號：SAF2507日本JIS標(biāo)準(zhǔn)：對應(yīng)SUS329J4L [2]各標(biāo)準(zhǔn)體系間化學(xué)成分差異不超過許可范圍，中國GB/T20878-2007與國際主流標(biāo)準(zhǔn)保持技術(shù)等效。質(zhì)量管控要求播報編輯產(chǎn)品須通過晶間腐蝕試驗、無損檢測及力學(xué)性能測試，化學(xué)成分偏差需滿足：單一元素偏差不超過標(biāo)準(zhǔn)上限的15%有害元素（P、S）含量需嚴(yán)控在限定范圍內(nèi) 出廠檢驗包括尺寸公差測量、表面質(zhì)量目視檢查 [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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022Cr25Ni7Mo4N022Cr25Ni7Mo4N是一種鐵素體—奧氏體(雙相)不銹鋼,它綜合了許多鐵素體鋼和奧氏體鋼有益的性能, 由于該鋼鉻和鉬的含量都很高,因此具有很好的抗點腐蝕,縫隙腐蝕和均勻腐蝕的能力.雙相顯微組織保證了該鋼具有很高的抗應(yīng)力腐蝕破裂的能力,而且機(jī)械強(qiáng)度也很高.022Cr25Ni7Mo4N應(yīng)用領(lǐng)域應(yīng)用于石油和天然氣工業(yè);海上石破天油平臺(熱交換器管,水處理和供水系統(tǒng),消防系統(tǒng),噴水系統(tǒng),穩(wěn)水系統(tǒng); 石油化工設(shè)備; 脫鹽(淡化)設(shè)備(和設(shè)備中的高壓管,海水管);既需要高強(qiáng)度同時又需要高耐腐蝕性的機(jī)械和結(jié)構(gòu)部件;燃(廢)氣凈化設(shè)備。是雙相不銹鋼中耐局部腐蝕很好的鋼，特點是耐點蝕很好，并具有高強(qiáng)度、耐氯化物應(yīng)力腐蝕、可焊接的特點。非常適用于化工、石油、石化和動力工業(yè)中以河水、地下水和海水等為冷卻介質(zhì)的換熱設(shè)備。耐腐蝕性及主要使用環(huán)境022Cr25Ni7Mo4N雙相鋼的較高的鉻及鉬含量使其對有機(jī)酸如甲酸、乙酸等具有較強(qiáng)的抗整體腐蝕的能力。022Cr25Ni7Mo4N雙相鋼對無機(jī)酸尤其是那些包含氯化物的無機(jī)酸也具有較強(qiáng)的抗腐蝕能力。和904L相比，022Cr25Ni7Mo4N雙相鋼對稀釋的混有氯離子的硫酸具有更強(qiáng)的抗腐蝕能力。904L是奧氏體狀態(tài)的合金，專用于抗純硫酸腐蝕。316L不能用于鹽酸環(huán)境中，它可能會遭到局部腐蝕或整體腐蝕。022Cr25Ni7Mo4N雙相鋼用于稀釋的鹽酸環(huán)境里，具有較強(qiáng)的抗點腐蝕及抗隙腐蝕能力。 PRODUCT PARAMETERS 產(chǎn)品參數(shù) 化學(xué)成分%CSiMnPSCrNiMoNCuMin24.06.03.00.24Max0.030.81.20.0350.0226.08.05.00.320.5物理性能：2507雙相鋼密度：8.03g/cm3， 熔點：1300-1390 ℃，磁性：無 熱處理：1000-1052℃之間保溫1-2小時，快速空冷或水冷。 機(jī)械性能：抗拉強(qiáng)度：σb≥795Mpa，屈服強(qiáng)度σb≥550Mpa：延伸率：δ≥15%，硬度≤310（HB） 上一頁：NAS 74N
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