ASTM A387 Qib 22 Chav Kawm 1yog chromium-molybdenum (Cr-Mo) alloy steel phaj, txhais los ntawm ASTM A387/A387M tus qauv, tshwj xeeb tshaj yog rau welded boilers thiab siab -kub siab hlab ntsha, featuring 2.0-2.5% Chromium thiab ~ 1% Molybdenum rau corrosion kuj.
Sib npaug rau ASTM A387 Qib 22 Alloy Steel Phaj
| BS | EN | ASTM / ASME Cov | DIN |
| 622-515B | 10 ZPO 910 | A387-22-1 | 10 ZPO 910 |
Specifications rau ASTM A387 Qib 22 Alloy Steel Phaj
Chromium & Molybdenum cov ntsiab lus (raws li ASME specification)
| Lub npe | Nominal Chromium Cov ntsiab lus (%) |
Nominal Molybdenum Cov ntsiab lus (%) |
| A387 Qib 22 | 2.25% | 1.00% |
Tensile Requirements rau ASTM A387 Qib 22 Alloy Steel Phaj Chav Kawm 1 Phaj
| Lub npe: | Yuav tsum tau: | Qib 22 |
| A387 Qib 22 | Tensile zog, ksi [MPA] | 75 txog 100 [515 rau 690] |
| Yield zog, min, ksi [MPa] / (0.2% offset) | 45 [310] | |
| Elongation hauv 8 nti. [200mm], min % | ... | |
| Elongation hauv 2 nti. [50mm], min, % | 18 | |
| Txo thaj tsam, min% | 45 ( ntsuas ntawm cov qauv puag ncig) 40 ( ntsuas ntawm cov qauv tiaj tus) |
Cov Khoom Siv Tshuaj Rau ASTM A387 Qib 22 Alloy Steel Phaj
| Element | Chemical Composition (%) | |
| A387 Qib 22 | ||
| Cov pa roj carbon: | Kev Ntsuas Kub: | 0.05 - 0.15 |
| Product Analysis: | 0.04 - 0.15 | |
| Manganese: | Kev Ntsuas Kub: | 0.30 - 0.60 |
| Product Analysis: | 0.25 - 0.66 | |
| Phosphorus: | Kev Ntsuas Kub: | 0.035 |
| Product Analysis: | 0.035 | |
| Sulfur (max): | Kev Ntsuas Kub: | 0.035 |
| Product Analysis: | 0.035 | |
| Silicon: | Kev Ntsuas Kub: | 0.50 max |
| Product Analysis: | 0.50 max | |
| Chromium: | Kev Ntsuas Kub: | 2.00 - 2.50 |
| Product Analysis: | 1.88 - 2.62 | |
| Molybdenum: | Kev Ntsuas Kub: | 0.90 - 1.10 |
| Product Analysis: | 0.85 - 1.15 |
Cov yam ntxwv tseem ceeb:
Hom khoom: Chromoly (Chromium{0}}Molybdenum) Alloy Steel.
TxujASTM A387 / A387M (tseem ASME SA387).
Kev sib xyaw: Muaj kwv yees li 2.25% Chromium (Cr) thiab 1.00% Molybdenum (Mo).
Daim ntawv thov: Siv rau kev ua haujlwm siab - kub hauv cov hlab ntsha siab, boilers, kub exchangers, thiab nyob rau hauv cov roj, roj, thiab petrochemical industries.
Class Distinction: "Class 1" yog hais txog cov cuab yeej cuab tam tshwj xeeb, uas yuav tsum muaj zog tensile qis (piv txwv li, 60-85 ksi) dua li Chav Kawm 2 (75-100 ksi), thaum cov tshuaj muaj pes tsawg leeg tseem zoo ib yam rau ob chav kawm.
Daim ntawv thov
Roj & Roj:Cov hlab ntsha siab, lub tank cia, piping hauv refineries, thiab offshore drilling.
Kev tsim hluav taws xob:Boilers, tshav kub exchangers, thiab cov khoom hauv thermal fais fab nroj tsuag.
Kev ua tshuaj lom neeg:Cov cuab yeej siv hauv cov nroj tsuag xav tau siab - qhov kub thiab txias tiv thaiv corrosion.
Petrochemicals:Cov khoom siv rau kev ua thiab kev cia khoom.
Thaum tshav kub kub Exchangers:Kev hloov hluav taws xob zoo hauv ntau qhov chaw muaj kev lag luam.
General Manufacturing:Siv rau hauv tshuab, nkoj tsim, thiab lwm qhov chaw xav tau kev ruaj khov, siab -temp steel.
Yog xav paub ntxiv txog GNEE cov khoom siv hlau, tiv tauj peb ntawm beam@gneesteelgroup.com. Peb tos ntsoov yuav ua haujlwm nrog koj.
1.Dab tsi yog A387 khoom?
A387 Qib 12 Chav Kawm 2 yog cov khoom zoo chrome molybdenum hlau uas yog qhov zoo tagnrho rau kev pabcuam kub thiab muaj cov yam ntxwv zoo tiv thaiv corrosion. Cov hlau muaj ntau yam kev siv nrog rau kev lag luam boilers thiab cov hlab ntsha siab, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig uas muaj qhov kub thiab txias.
2.Dab tsi yog A387 gr22 sib npaug?
Lwm cov npe uas sib npaug rau AISI A387 qib 22-PVQ alloy steel suav nrog cov hauv qab no: ASTM A182 (F22-1) ASTM A199 (T22) ASTM A200 (T22)
3.Dab tsi yog qhov txawv ntawm A182 thiab A387?
Ob leeg ASTM A182 qib F11 chav kawm 2 thiab ASTM A387 qib 22 steel yog hlau alloys. Lawv muaj 99% siab heev ntawm lawv qhov nruab nrab alloy muaj pes tsawg leeg. Muaj 32 cov khoom siv nrog cov txiaj ntsig rau ob qho khoom siv. Cov khoom muaj txiaj ntsig rau ib qho khoom siv xwb (1, hauv qhov no) tsis qhia.