ASTM A387 Qib 12 Chav Kawm 1yog chromium-molybdenum alloy steel phaj rau welded siab hlab ntsha thiab boilers siv nyob rau hauv siab kub, muab zoo zog thiab corrosion kuj.
Sib npaug
| BS | EN | ASTM / ASME | DIN |
| 620 B | 13 ZPO 45 | A387-12-1 | 13 ZPO 44 |
Specifications rau ASTM A387 Qib 12 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 12 | 1.00% | 0.50% |
Tensile Requirements rau ASTM A387 Qib 12 Alloy Steel Phaj Chav Kawm 1 Phaj
| Lub npe: | Yuav tsum tau: | Qib 12 |
| A387 Qib 12 | Tensile zog, ksi [MPA] | 65 txog 85 [450 rau 585] |
| Yield zog, min, ksi [MPa] / (0.2% offset) | 40 [275] | |
| Elongation hauv 8 nti. [200mm], min % | 19 | |
| Elongation hauv 2 nti. [50mm], min, % | 22 | |
| Txo thaj tsam, min% | ––– |
Cov Khoom Siv Tshuaj Rau ASTM A387 Qib 12 Alloy Steel Phaj
| Lub ntsiab | Chemical Composition (%) | |
| ASTM A387 Qib 12 | ||
| Cov pa roj carbon: | Kev Ntsuas Kub: | 0.05 - 0.17 |
| Product Analysis: | 0.04 - 0.17 | |
| Manganese: | Kev Ntsuas Kub: | 0.40 - 0.65 |
| Product Analysis: | 0.35 - 0.73 | |
| 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: | 0.15 - 0.40 |
| Product Analysis: | 0.13 - 0.45 | |
| Chromium: | Kev Ntsuas Kub: | 0.80 - 1.15 |
| Product Analysis: | 0.74 - 1.21 | |
| Molybdenum: | Kev Ntsuas Kub: | 0.45 - 0.60 |
| Product Analysis: | 0.40 - 0.65 |
Daim ntawv thov
Siab Vessels & Boilers: Core siv rau kev nyab xeeb thiab ua haujlwm nyob rau hauv qhov kub thiab txias.
Roj & Roj Kev Lag Luam: Zoo tagnrho rau kev pabcuam qaub (muaj hydrogen sulfide) vim yog cov ntsiab lus chromium, siv rau hauv drilling, ua, thiab cov khoom siv kho kom zoo.
Petrochemical Kev Lag Luam: Cov cua kub sib txawv, cov condensers, thiab cov tank cia rau ntau yam txheej txheem tshuaj.
Fais fab Tsim: Cov khoom siv hauv thermal thiab nuclear fais fab nroj tsuag ua haujlwm ntawm qhov kub thiab txias.
Kev Siv Tshuaj: Cov khoom siv uas yuav tsum tau muaj kev tiv thaiv corrosion thiab siab -kev ua haujlwm kub.
Thov kom muaj kev tshaj lij rau ASTM A387 Qib 12 Chav Kawm 1 los ntawm GNEE Steel.
1.Dab tsi yog A387 gr 12 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. Cov khoom siv ASTM A387 yog dab tsi?
ASTM A387 specification yog tus qauv Specification rau Pressure Vessel Phaj, Alloy Steel, Chromium-Molybdenum daim hlau siv nyob rau hauv daim ntawv thov ntawm welded boilers thiab siab hlab ntsha raug rau siab kub. Ob qib SSAB tsim muaj nyob rau hauv Chav Kawm 1 thiab / lossis Chav Kawm 2.
3.Tus nqi ntawm SA 387 GR 12 phaj yog dab tsi?
Tus nqi rau SA 387 Gr 12 phaj sib txawv heev tab sis feem ntau ntog nyob rau hauv thaj tsam ntawm $ 800 mus tshaj $ 3,000 USD ib tuj, nyob ntawm tus neeg muag khoom, kom muaj nuj nqis (piv txwv li, 1-9 tons vs. bulk), thickness, tiav, thiab cov chav kawm tshwj xeeb (Class 1 lossis 2), nrog rau ntau tus neeg muag khoom tus nqi 00 $ 1 / 0 ton, FOB reflecting nws siv nyob rau hauv high-temperature siab hlab ntsha.