ASTM A 691 9Cr CL22 longitudinal welded yeeb nkabyog tsim los ntawm 9% chromium alloy steel (9Cr) thiab belongs rauqib CL22. Cov khoom no muabtshwj xeeb siab - kub lub zog thiab oxidation kuj, uatshwj xeeb tshaj yog zoo- haum rau kev ua haujlwm ntev- nyob rau hauv siab - kub thiab siab - siab. Cov ntsiab lus chromium hauv 9Cr steel muabzoo corrosion kuj, thiab nrog kev kho cua sov kom tsim nyog, nws ua tiav ib qhozoo tagnrho ua ke ntawm mechanical zog. Piv rau cov pa roj carbon zoo tib yam,9Cr CL22 steel tuav tau zoo heev lub zog thiab toughness txawm nyob rau hauv siab -kub ib puag ncig siab tshaj 600 degree, ho txuas lub neej kev pab cuam ntawm pipelines.
Dab tsi yog A691 9cr cl22 sib npaug
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Qib Qib |
Hom Hlau |
ASTM Specification |
HB, max |
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Tus lej |
Qib |
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9 ib CR |
9% chromium, 1% molybdenum hlau |
A387/A387M |
9 |
241 |
A691 9cr cl22 Specification
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Qib |
Alloy Steel ASTM A691 Cl22, A691 Qib 1 CR, Qib 1/2 CR, Qib 1 1/4 CR, Qib 2 1/4 CR, |
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Loj |
1/2 "NB to 36" NB |
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Thickness |
3-12 hli |
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Teem caij |
SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
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Chav Kawm |
10, 11, 12, 13, 20, 21, 22, 23, 30, 31, 32, 33, 34, 40, 41, 42, 43, 50, |
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ASTM A691 Qib |
ASTM A691 Gr 11, ASTM A691 Gr.91, ASTM A691 9cr, ASTM A691 5cr, ASTM A691 1 1/4cr Cl22, ASTM A691m, |
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Ua siab ntev |
Cold drawn yeeb nkab: +/- 0.1mm Cov yeeb nkab txias txias: +/- 0.05mm |
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Khoom siv tes ua |
Cold rolled thiab Cold drawn |
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Hom |
Seamless / ERW / Welded / Fabricated / LSAW Pipes |
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muaj nyob rau hauv Form of |
Round, Square, Rectangular, Hydraulic thiab lwm yam. |
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Ntev |
Txuj |
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Xaus |
Plain End, Beveled kawg, Treaded |
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Tshwj xeeb hauv |
Loj Dia ASTM A691 Yeeb Nkab |
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Kev kuaj ntxiv |
NACE MR 0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, H2 SERVICE, IBR, thiab lwm yam. |
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Daim ntawv thov |
Seamless Ferritic Alloy-Steel Yeeb Nkab rau Siab-Tsev Kev Pabcuam |
Cov txheej txheem ntau lawm ntawm A691 Gr.9Cr CL22 Longitudinal Welded Steel Pipe
Kev npaj raw khoom
Xaiv cov qib siab - cov ntawv hlau zoo kom ntseeg tau cov tshuaj lom neeg muaj pes tsawg leeg thiab cov khoom siv kho tshuab ua raws li cov qauv xav tau.
Plate forming
Zoo li steel daim hlau rau hauv daim ntawv tubular siv cov cuab yeej tsim los tsim cov yeeb nkab ua ntej profile.
Vuam
Ua haujlwm siab -Vuam zaus (HFW) lossis Submerged Arc Vuam (SAW) los fuse phaj npoo. Ua nruj me ntsis tswj qhov kub thiab txias, ceev, thiab siab kom ntseeg tau tias weld kev ncaj ncees.
Kev kho cua sov
Ua kev tshaj tawm -weld kev kho mob (normalizing, tempering, los yog quenching) kom tshem tawm cov residual stresses thiab txhim kho mechanical/corrosion-resistant zog.
Tsis yog -Kev Ntsuas Kev Puas Tsuaj (NDT)
Ua cov kev tshuaj ntsuam xyuas siv Ultrasonic Testing (UT), Radiographic Testing (RT), lossis Magnetic Particle Testing (MT) los xyuas qhov tsis xws luag -dawb qhov chaw thiab cov qauv sab hauv.
Dimensional Inspection & Surface Treatment
Txheeb xyuas qhov tseeb qhov tseeb (roundness, straightness) thiab siv cov kev kho deg (sandblasting / pleev xim) rau corrosion kuj thiab zoo nkauj tiav.
A691 9cr cl22 Fais Fusion Welded rau Kev Pabcuam Siab Siab ntawm Lub Hoobkas Kub Kub
