Astm A335 P12
Khoom siv thiab Specification
ASTM A335 P12 yog ib qho kev qhia tshwj xeeb rau seamless ferritic alloy steel yeeb nkab npaj rau kev pabcuam kub. Nws yog feem ntau siv nyob rau hauv ntau daim ntawv thov kev lag luam uas muaj qhov kub thiab txias siab. Cov khoom siv tau zoo rau kev siv hauv cov chaw tsim hluav taws xob, refineries, thiab petrochemical industries.
Tshuaj muaj pes tsawg leeg
| Element | Yam tsawg kawg nkaus (%) | Maximum (%) |
| Cov pa roj carbon (C) | 0.05 | 0.15 |
| Manganese (Mn) | 0.30 | 0.61 |
| Phosphorus (P) | - | 0.025 |
| Sulfur (S) | - | 0.025 |
| Silicon (Si) | 0.50 | 1.00 |
| Chromium (Cr) | 0.80 | 1.25 |
| Molybdenum (hli) | 0.44 | 0.65 |
Mechanical Properties
Cov khoom siv kho tshuab ntawm ASTM A335 sib txawv nyob ntawm kev kho cua sov thiab kev tsim khoom. Ntawm no yog cov khoom uas raug:
| Khoom | Tus nqi |
| Tensile zog | 415 MPa (min) |
| Yield zog | 220 MPa (min) |
| Elongation (%) | 30 (min) |
| Hardness (HB) | 163-255 |
Qib Steel
ASTM A335 yog cais raws li ferritic alloy hlau nrog lub npe "P" qhia txog qhov kub-kub cov yeeb nkab. "12" yog hais txog cov ntsiab lus chromium nominal hauv cov hlau.
Daim ntawv thov
ASTM A335 cov kav dej tau siv dav hauv ntau yam kev siv kub kub vim lawv cov kev ua haujlwm zoo heev rau oxidation thiab siab thermal stability. Qee cov ntawv thov siv xws li:
- Kev tsim hluav taws xob:P12 kav dej yog siv nyob rau hauv fais fab nroj tsuag rau superheater thiab reheater tubing, raws li zoo raws li nyob rau hauv lub tshav kub exchangers.
- Refineries:Lawv ua hauj lwm hauv refineries los ua cov kua dej kub thiab roj.
- Petrochemical Kev Lag Luam:P12 cov kav dej yog siv rau hauv cov nroj tsuag petrochemical rau thauj cov tshuaj kub kub thiab hydrocarbons.
Cim npe nrov: astm a335 p12, Suav teb, lwm tus neeg, manufacturers, hoobkas, lag luam wholesale, nqe, kev muag khoom
