A691 Gr2 1/4Cr CL22 welded yeeb nkabbelongs rau chromium{0}}molybdenum alloy steel series. Nws cov tshuaj muaj pes tsawg leeg yog ua tib zoo tsim los ua kom tau raws li qhov yuav tsum tau ua hauv kev ua haujlwm siab - kub thiab siab - qhov chaw siab. Cov tshuaj muaj pes tsawg leeg ntawm cov khoom no suav nrog:
Cov ntsiab lus carbon (C) tswj ntawm0.05%-0.15%
Chromium (Cr) cov ntsiab lus kwv yees li1.00%-1.50%
Molybdenum (Mo) cov ntsiab lus0.45%-0.65%
Qhov tsim nyog ntawm manganese (Mn), silicon (Si), phosphorus (P), thiab sulfur (S).
Qhov kev sib xyaw ua ke ntawm alloy no zoo heevsiab -qhov kub thiab txias tsis kamrau cov khoom siv, ua kom nws tswj tau zoo txhua yam khoom txawm tias nyob rau hauv qhov kub thiab txias.
Hais txog mechanical zog, lubtensile zogntawm A691Gr21/4CrCL22 welded yeeb nkab feem ntau ncav cuag515-690 MPa,cu ibyield zog tsis tsawg tshaj 310 MPa, thiabelongation ntau tshaj 20%. Cov ntsuas kev ua tau zoo no tso cai rau nws tiv taus cov kev ntxhov siab hauv siab - cov kav dej siab thaum muaj cov yas zoo thiab tawv, tiv thaiv kev tawg tawg zoo.
Dab tsi yog A691 2 1 4cr cl22 sib npaug
A691Gr2-1/4CrCL22 yog ib hom CR-MO kub-resistant steel, yeej muaj li ntawm 2.25% CR thiab 1% MO. Nws yog sib npaug rau SA-335P22. A691 yog welded yeeb nkab, thaum SA-335P22 yog cov yeeb nkab seamless.
A691 2 1 4cr cl22 EFW Pipe specification
Specification:ASTM A691 / ASME SA691 Cov Lus Qhia
Qhov Loj:ASTM, ASME thiab API
Sab nraud txoj kab uas hla:6-2500mm; WT: 1-200 hli
Phab ntsa thickness:0.3mm-50mm
Loj:1/8 "NB rau 30" NB IN
Hom:ERW / Welded Yeeb Nkab
Daim ntawv:Round, Square, Rectangular, Oval, Hydraulic thiab lwm yam
Ntev:Ib qho Random, Ob Chav Random & Ntev Ntev
Xaus:Plain End, Beveled kawg, Treaded
Cov sij hawm:SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, Tag nrho cov sij hawm
Kev Tshawb Fawb, Kev Tshaj Tawm Tshaj Tawm:Mill Test Certificate, EN 10204 3.1, Cov Ntawv Qhia Tshuaj, Cov Ntawv Qhia Mechanical, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports
Ntim:Ntim rau hauv cov thawv ntoo, hnab yas, steel strips Bundled, lossis raws li cov neeg siv khoom thov
Tshwj xeeb:Qhov ntau thiab tsawg thiab Specifications uas tsis yog saum toj no tuaj yeem tsim los ntawm kev thov
Alloy Steel Qib .2 1/4CR ERW Welded Yeeb Nkab Tshuaj Chemical Composition
| Qib | C, % | Mn,% | P, % | S, % | Si,% | Cr,% | Mo,% | V,% |
| 2 1/4 CR | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50 | 2.00-2.50 | 0.90-1.10 | - |
Mechanical Properties of ASTM A691 Qib2 1/4CR Welded Pipes
| Qib | Tensile zog, MPa | Yield zog, MPa | Elongation,% |
| 2-1/4 CR | 415-585 | Ntau dua lossis sib npaug li 240 | Ntau dua lossis sib npaug 22 |
A691Gr2-1 / 4CrCL22 siab kub thiab siab siab steel yeeb nkab Hoobkas
