1 1 4CR khoom yog dab tsi?
Cov khoom tseem ceeb ntawm A691GR 1-1/4CrCL22 longitudinal welded steel yeeb nkab yog chromium-molybdenum alloy steel. Nws cov tshuaj muaj pes tsawg leeg suav nrog kwv yees li 1.25% chromium (Cr) thiab 0.45% molybdenum (Mo), nrog rau cov pa roj carbon (C), manganese (Mn), silicon (Si), thiab lwm yam. Qhov kev sib xyaw ua ke ntawm cov hlau no ua rau cov yeeb nkab steel uas muaj siab heev - qhov kub thiab txias tsis kam, ua rau nws ua haujlwm ruaj khov nyob rau hauv siab - qhov kub thiab siab - siab rau lub sijhawm ntev. Tsis tas li ntawd, qhov sib ntxiv ntawm chromium tseem ua rau cov yeeb nkab corrosion kuj, tshwj xeeb tshaj yog nws muaj peev xwm tiv thaiv hydrogen sulfide corrosion nyob rau hauv sulfur-muaj xov xwm.
1 1 4 cr material properties
ASTM A691 yog tus qauv tsim los ntawm American Society for Testing and Materials (ASTM) rau hluav taws xob tiv thaiv welded carbon steel thiab alloy steel kav rau siab - kev siv siab. Lub npe "1-1/4CrCL22" yog hais txog cov khoom siv tshuaj lom neeg thiab qib kev ua haujlwm zoo. "1-1/4Cr" qhia txog cov ntsiab lus chromium ntawm kwv yees li 1.25%, faib nws raws li cov hlau tsis tshua muaj chromium, thaum "CL22" sib haum rau cov kev kho cua sov tshwj xeeb thiab cov cuab yeej cuab tam. Cov khoom no tuav lub zog zoo thiab tawv txawm tias qhov kub siab, nrog lub zog tawm los feem ntau tsis tsawg dua 415 MPa, lub zog tensile tshaj 585 MPa, thiab elongation tshaj 19%.
1 1 4 cr cov khoom sib npaug
1 1 4 cr cov khoom specification
| Txuj | ASTM A691 Cov Lus Qhia Tshwj Xeeb |
|---|---|
| Daim ntawv thov | Standard Specification rau Carbon thiab Alloy Steel Yeeb Nkab, Hluav taws xob-Fusion-Welded rau High-Kev Pabcuam Siab ntawm Kub Kub |
| Qib Qib | ASTM A691 Cl22,1 CR, 1/2 CR, 1 1/4 CR, 2 1/4 CR, 3 CR, 5 CR, 9 CR, 91, CM 65, CM70, CM75 |
| Chav Kawm | 10, 11, 12, 13, 20, 21, 22, 23, 30, 31, 32, 33, 34, 40, 41, 42, 43, 50, 51, 52, 53, 60, 661, 71, 62, 7 3.. |
| Txheej txheem | EFW, ERW, SEAMLESS, LSAW |
| Sab nraud | 1/2"- 36" |
| Phab ntsa Thickness | TSW 10 SCH 20 SCH 30 STD SCH 40 SCH 60 XS SCH 80 SCH 100 SCH 12 SCH 140 SCH 160 XXS |
| Cov yeeb nkab ntev | Ib qho random ntev / Ob chav random ntev 5m-14m, 5.8m, 6m, 10m-12m, 12m lossis raws li tus neeg siv khoom thov |
| Ua siab ntev | OD: +/- 0.5 % ntawm qhov teev sab nraud |
| WT: tsis ntau tshaj 0.01 nyob rau hauv. (0.3 mm) raws li teev nominal thickness. | |
| Ntev: nyob rau hauv −0, +1⁄2 in. (−0, +13 mm) ntawm qhov teev. | |
| Yeeb Nkab | Liab qab, Xim dub, varnished, galvanized, tiv thaiv -corrosion, PE PP / EP / FBE txheej |
| Cov yeeb nkab kawg | Plain kawg / Beveled, tiv thaiv los ntawm lub kaus mom yas ntawm ob qho kawg, txiav quare, grooved, threaded thiab coupling |
| Txoj Kev | Kub-rolled/Cold-drawn/Kub- nthuav dav |
1 1 4 cr khoom yeeb nkab Hoobkas
