ASTM A387 Qib 11 Chav Kawm 1yog chromium-molybdenum (Cr-Mo) alloy steel rau siab-kub siab cov hlab ntsha, muab qhov zoo siab -temp lub zog thiab corrosion kuj, teev nrog ~ 1% Cr & ~ 0.5% Mo, thiab txhais los ntawm tensile zog (xws li, 515-690 MPa tensile.)
ASTM A387 Qib 11 Chav Kawm 2yog chrome-moly alloy steel phaj siv rau siab-kub siab hlab ntsha, boilers, thiab tshav kub exchangers, featuring ~ 1.25% Chromium & ~ 0.50% Molybdenum rau zoo heev high -temp lub zog, corrosion kuj, thiab zoo weldability.
Qhov tseem ceeb sib txawv & Zoo sib xws
| Feature | A387 Qib 11 Chav Kawm 1 | A387 Qib 11 Chav Kawm 2 |
|---|---|---|
| Tensile zog | 60-85 ksi (415-585 MPa) | 75-100 ksi (515-690 MPa) |
| Yield zog | 35 ksi (205-240 MPa) | 45 ksi (275-310 MPa) |
| Elongation (hauv 2 ") | Tsawg kawg . 22% | Tsawg kawg . 22% |
| Elongation (hauv 8 ") | Tsawg kawg . 19% | Tsawg kawg . 18% |
| Kev sib xyaw | Tib Cr-Mo alloy li Class 2 | Tib Cr-Mo alloy li Class 1 |
| Daim ntawv thov | Siab -temp service | Siab - kev pabcuam kub, kev ntxhov siab ntau dua |
Cov Lus Qhia Tshwj Xeeb rau ASTM A387 Qib 11 Alloy Steel Phaj
| Element | Chemical Composition (%) | |
| A387 Qib 11 | ||
| 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: | 0.50 - 0.80 |
| Product Analysis: | 0.44 - 0.86 | |
| Chromium: | Kev Ntsuas Kub: | 1.00 - 1.50 |
| Product Analysis: | 0.94 - 1.56 | |
| Molybdenum: | Kev Ntsuas Kub: | 0.45 - 0.65 |
| Product Analysis: | 0.45 - 0.70 |
Mechanical Properties
| A387 / SA387 Qib 11 | Chav Kawm 1 | Chav kawm 2 |
| Tensile zog (ksi) | 60-85 | 75-90 |
| Tensile zog (MPa) | 415-585 | 485-620 |
| Yield zog (ksi) | 35 | 45 |
| Yield zog (MPa) | 240 | 310 |
| Elongation hauv 200mm (%) | 19 | 18 |
| Elongation hauv 50mm (%) | 22 | 22 |
| Txo thaj tsam hauv% | – | – |
Daim ntawv thov
Roj & Roj Kev Lag Luam:Cov tso tsheb hlau luam, cov kav dej, cov hlab ntsha rau cov kua dej kub / roj, tshwj xeeb tshaj yog nyob rau hauv qaub (sulfide{0}}muaj) ib puag ncig vim muaj corrosion kuj zoo.
Kev tsim hluav taws xob:Cheebtsam hauv fais fab nroj tsuag, boilers, thiab tshav kub exchangers.
Kev ua tshuaj lom neeg:Cov khoom siv hauv cov nroj tsuag tshuaj ua haujlwm ntawm qhov kub thiab txias.
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 qib 11 khoom?
ASTM A387 specification yog tus qauv Specification rau Pressure Vessel Phaj, Alloy Steel, Chromium-Molybdenum npaj rau siv nyob rau hauv welded boilers thiab siab hlab ntsha tsim rau siab kub kev pab cuam. SSAB tuaj yeem muab A387 Qib 11 rau qhov kev xeem nruj rau Chav Kawm 1 thiab / lossis Chav Kawm 2.
2. ASTM A387 Qib 11 sib npaug li cas?
ASTM A387 qib 11 sib npaug steel yog ASME SA387 qib 11. ASTM A387 qib 11 npog A387 qib 11 chav kawm 1 thiab A387 qib 11 chav kawm 2, uas sib npaug rau ASME SA387 qib 18 qib 71 thiab qib 12 raws.
3.Tus qauv 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.