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鍋爐用無縫鋼管合金圓鋼-Alcoa(歐美鎂鋁)
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[2]。其材質(zhì)涵蓋優(yōu)質(zhì)碳素鋼（如20G）、合金鋼（如15CrMoG）及不銹耐熱鋼（如1Cr18Ni9），需具備高持久強度、抗氧化性及組織穩(wěn)定性。生產(chǎn)過程中采用電弧爐真空精煉、熱軋/冷拔無縫工藝，并以正火、回火等熱處理狀態(tài)交貨，確保顯微組織與晶粒度達(dá)標(biāo) [1]。該類鋼管需逐根通過水壓試驗，并滿足擴口、壓扁、彎曲等力學(xué)試驗要求，同時新增晶間腐蝕試驗及高溫性能檢測以提升安全可靠性。長期承受高溫高壓及腐蝕環(huán)境，對冶煉精度、加工變形系數(shù)及表面處理工藝要求嚴(yán)格。除鍋爐領(lǐng)域外，還廣泛應(yīng)用于石油化工、船舶制造、流體輸送等場景，對應(yīng)標(biāo)準(zhǔn)包括GB8162、API SPEC5CT等 [2]。中文名鍋爐用無縫鋼管外文名Seamless steel tube for boiler標(biāo) 準(zhǔn)GB/T5310-2018目錄1產(chǎn)品介紹2表面處理3規(guī)格產(chǎn)品介紹播報編輯鍋爐用無縫鋼管鍋爐用無縫鋼管（GB/T5310-2018）是用于制造高壓及其以上壓力的水管鍋爐受熱面用的優(yōu)質(zhì)碳素鋼、合金鋼和不銹耐熱鋼無縫鋼管。鍋爐用無縫鋼管：這些鍋爐管經(jīng)常處于高溫和高壓下工作、管子在高溫?zé)煔夂退羝淖饔孟逻€會發(fā)生氧化和腐蝕，因此要求鋼管有高的持久強度、高的抗氧化性能，并具有良好的組織穩(wěn)定性，采用鋼號有：優(yōu)質(zhì)碳素結(jié)構(gòu)鋼鋼號有20G、20MnG、25MnG；合金結(jié)構(gòu)鋼鋼號15MoG、20MoG、12CrMoG、15CrMoG、12Cr2MoG、12CrMoVG、12Cr3MoVSiTiB等；有銹耐熱鋼常用1Cr18Ni9、1Cr18Ni11Nb高壓鍋爐管除保證化學(xué)成分和機械性能外，要逐根做水壓試驗，要作擴口、壓扁試驗。鋼管以熱處理狀態(tài)交貨。此外，對成品鋼管顯微組織、晶粒度、脫碳層也有一定要求。高壓鍋爐用鋼管鍋爐用無縫鋼管執(zhí)行標(biāo)準(zhǔn)：GB/T5310-2018高壓鍋爐用無縫管表面處理播報編輯高壓鍋爐用無縫鋼管表面處理及產(chǎn)品加工過程中常見問題：【1】 高壓鍋爐用無縫鋼管表面不一致：只對焊縫進(jìn)行酸洗鈍化，也造成表面不均勻，影響美觀?！?】高壓鍋爐用無縫鋼管劃痕難除去：整體酸洗鈍化，也不能將加工過程中產(chǎn)生的各種劃痕去掉，并且也不能去除由于劃傷、焊接飛濺而粘附在不銹鋼表面的碳鋼、飛濺等雜質(zhì)，導(dǎo)致在腐蝕介質(zhì)存在的條件下發(fā)生化學(xué)腐蝕或電化學(xué)腐蝕而生銹?！?】焊縫缺陷：焊縫缺陷較嚴(yán)重，采用手工機械打磨處理方法來彌補，產(chǎn)生的打磨痕跡，造成表面不均勻，影響美觀。無縫鋼管執(zhí)行標(biāo)準(zhǔn)1、結(jié)構(gòu)用無縫鋼管：GB8162-2008 2、輸送流體用地縫鋼管：GB8163-20083、3、低中壓鍋爐管鍋爐用無縫鋼管：GB3087-2008 4、鍋爐用高壓無縫管：GB5310-2008（ST45.8-Ⅲ型） 5、化肥設(shè)備用高壓無縫鋼管：GB6479-1999 6、地質(zhì)鉆探用無縫鋼管：YB235-70 7、石油鉆探用無縫鋼管：YB528-65 8、石油裂化用無縫鋼管：GB9948-88 9、石油鉆鋌專用無縫管：YB691-70 10、汽車半軸用無縫鋼管：GB3088-1999 11、船舶用無縫鋼管：GB5312-1999 12、冷拔冷軋精密無縫鋼管：GB3639-1999 13、各種合金管16Mn、27SiMn、15CrMo、35CrMo、12CrMov、20G、40Cr,12Cr1MoV,15CrMo另外，還有GB/T17396-1998（液壓支柱用熱軋無縫鋼管）、GB3093-1986（柴油機用高壓無縫鋼管）、GB/T3639-1983（冷拔或冷軋精密無縫鋼管）、GB/T3094-1986（冷拔無縫鋼管異形鋼管）、GB/T8713-1988（液壓和氣動筒用精密內(nèi)徑無縫鋼管）、GB13296-1991（鍋爐、熱交換器用不銹鋼無縫鋼管）、GB/T14975-1994（結(jié)構(gòu)用不銹鋼無縫鋼管）、GB/T14976-1994（流體輸送用不銹鋼無縫鋼管）、GB/T5035-1993（汽車半軸套管用無縫鋼管）、API SPEC5CT-1999（套管和油管規(guī)范）等。規(guī)格播報編輯鍋爐用無縫鋼管規(guī)格表規(guī)格規(guī)格規(guī)格12×1.573×4-4.5-5-6-7-8-9-10-12-15219×30-4014×1.5-2.5-376×4-4.5-5-6-7-8-9-10-12-14245×8-10-14-17-20-2216×1.5-2.5-483×4.5-5-10-12━14-16-18-20245×25-28-30-34-4018×2.3-4-589×4.5-8-10-12━14-16-18-20273×7-9-12-15-18-20-2520×2.5-3-595×4.5-6-8-10-12-14-16-20273×30-35-38-4024×2.5-3-4-5-6102×4.5-5-6-7-8-10-12-14-16-20299×8-12-16-20-24-2825×2.5-3-4-5-6108×4.5-5-6-7-8-10-12-14-18-20-22299×30-32-36-38-4028×3-3.5-4-5-6114×4.5-5-6-7-8-10-12-14-18-20325×8-12-14-18-3832×3.5-4-5-6-8121×4.5-5-6-7-8-10-12-14-16-20325×28-32-34-3834×4-5-6-8127×4.5-5-6-7-8-10-12-14-16-20351×10-16-20-25-4036×3.5-5-6-8133×4.5-6-8-12-14-16-18-20-25-30355×6-18-20-25-30-4038×4-5-6-7-8-9-10140×5-6-7-8-9-10-12-14-16-20-22377×8-12-15-20-24-2839×3.5-5-8-10146×4.5-6-8-12-14-16-18-20-25-30377×30-37-4042×3.5-4-5-6-7-8-9-10152×4.5-6-8-12-14-16-18-20-25-30402×10-15-20-25-30-3545×3.5-4-5-6-7-8-9159×4.5-6-10-12-14406×10-20-25-28-35-4048×3.5-4-5-6-7-8-9-10159×16-18-20-22-25-30426×10-12-14-16-20-25-30-35-4051×3.5-4-5-6-7-8-9-10168×8-10-12-14-20-25-30-35450×10-12-14-16-20-25-34-4056×3.5-4-5-6-7-8-9-10180×8-12-16-25-30480×10-12━14-16-18-20-25-30-4057×3.5-5-6-7-8-9-10-12180×32-34-38-40500×10-12-14-16-20-25-34-4060×3.5-4.5-5-6-7-8-9-12-14194×6-8-12-16-20-25-30-40510×10-12-14-16-20-25-34-4063×3.5-4.5-5-6-7-8-9-10-12-14203×6-7-10-15-20-25-30530×10-12-14━16-18-20-30-40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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