ASTM A387 Gr11 CL2N Efere efere, Alloy Steel efere
1. Nkọwa dị mfe:
1) ASTM Standard A387/A387M-11 Chromium-Molybdenum Alloy Steel Sheets for Pressure Vessels Chemical Composition.
Mmetụta Ọdịnihu Nnyefe Okpomọkụ A Haziri ahazi + Iwe ọkụ/Annealed.
2) Ọkwa nke ọ bụla excepi Grades 21L 22L na 9 dị inlasses nke tensile ike ọkwa dị ka akọwara na Tebụl chọrọ Tensile.
Ọkwa 21L na 22L dị naanị ka Klas 1 Ọkwa 91 dị naanị dị ka Klas 2. MARA 1- Ọkwa 911, nke a kpuchiri ya na mbụ.
nkọwapụta, bụ nkọwapụta A1017/A1017M kpuchie ugbu a.
3) Oke kachasị nke efere bụ naanị site n'ikike nke ihe mejupụtara iji mezuo ihe akụrụngwa akọwapụtara akọwapụtara.
2. Ngwakọta kemịkalụ:
| Ọkwa | Nyocha | Ihe mejupụtara kemịkalụ (Max %) | ||||||
| C | Si | Mn | P | S | Cr | Mo | ||
| Gr11 | Okpomọkụ | 0.05-0.17 | 0.5-0.8 | 0.4-0.65 | 0.025 | 0.025 | 1.0-1.5 | 0.45-0.65 |
| Ngwaahịa | 0.04-0.17 | 0.44-0.86 | 0.35-0.73 | 0.025 | 0.025 | 0.94-1.56 | 0.40-0.70 | |
| Gr22 | Okpomọkụ | 0.05-0.15 | ≤0.50 | 0.3-0.6 | 0.025 | 0.025 | 2.0-2.5 | 0.9-1.1 |
| Ngwaahịa | 0.05-0.15 | ≤0.50 | 0.35-0.73 | 0.025 | 0.025 | 1.88-2.62 | 0.85-1.15 | |
3. Nrụ arụ:
| Ọkwa | Klas | Ngwongwo igwe | ||
| Ike Mpụta (N/mm2)/(Mpa) | Ike Tensile (N/mm2)/(Mpa) | Mgbatị (%) | ||
| Gr11 | Klas 1 | ≥240 | 415-585 | ≥19 |
| Klas 2 | ≥310 | 515-690 | ≥18 | |
| Gr22 | Klas 1 | ≥205 | 415-585 | ≥18 |
| Klas 2 | ≥310 | 515-690 | ≥18 | |
4. Ihe ngosi foto:
5. Nnyefe:
6. Na-ebu akpa akpa:
7. Ngwa:
Isi nzube nke American ọkọlọtọ akpa efere: ọtụtụ ebe na mmanụ ala, chemical, ike ọdụ, ji esi mmiri ọkụ na ndị ọzọ na ọrụ,
a na-eji eme reactors, ndị na-agbanwe ọkụ, ihe nkesa, tankị gburugburu, tankị mmanụ na gas, tankị gas, mmanụ ọkụ na-ekpo ọkụ, ogbunigwe nrụgide ike nuklia,
Igwe ọkụ ọkụ Steam drum, mmanụ ọkụ gas cylinders, ọkpọkọ mmiri na-enwe nrụgide dị elu nke ọdụ ụgbọ mmiri, ụda turbine na akụrụngwa ndị ọzọ.
na components.
