ASTM A269 dia fepetra takiana ho an'ny fantsona vy tsy misy vy austenitic tsy mitongilana sy welded ho an'ny serivisy fanoherana ny harafesina sy ambany na ambony. boiler, superheater, ary fantsona mpanakalo hafanana. Ny fahasamihafana eo amin'ny A269, A249, ary A213 dia miankina amin'ny fenitra manokana asehon'izy ireo amin'ny fantsona vy tsy misy pentina.
STANDARD ASTMA249 ASTM A269 ASTMA270 ASTM213
| Malagasy | Fandeferana amin'ny savaivony ivelany (mm) | Haben'ny rindrina（%） | Fandeferana Halava (mm) | ||
| ASTM A249 | <25.0 | +0.10 -0.11 | ±10% | ||
| ≥25.0-≤40.0 | ±0.15 | ||||
| >40.0-<50.0 | ±0.20 | OD<50.8 | +3.0-0.0 | ||
| ≥50.0~<65.0 | ±0.25 | ||||
| ≥65.0-<75.0 | ±0.30 | ||||
| ≥75.0~ <100.0 | ±0.38 | OD≥50.8 | +5.0-0.0 | ||
| ≥100~≤200.0 | +0.38 -0.64 | ||||
| >200.0-≤225.0 | +0.38 -1.14 | ||||
| ASTM A269 | <38.1 | ±0.13 | |||
| ≥38.1~<88.9 | ±0.25 | ||||
| ≥88.9-<139.7 | ±0.38 | ±15,0% | OD <38.1 | +3.2-0.0 | |
| ≥139.7~<203.2 | ±0.76 | ±10,0% | 0D ≥38.1 | +4.0-0.0 | |
| ≥203.2-<304.8 | ±1.01 | ||||
| ≥304.8-<355.6 | ±1.26 | ||||
| ASTMA270 | ≤25.4 | ±0.13 | ±10% | +10-0.0 | |
| >25.4-≤50.8 | ±0.20 | ||||
| >50.8~≤62 | ±0.25 | ||||
| >76.2- ≤101.6 | ±0.38 | ||||
| >101.6~<139.7 | ±0.38 | ||||
| ≥139.7–203.2 | ±0.76 | ||||
| ≥203 2~≤304.8 | ±1.27 | ||||
| ASTM213 | D＜25.4 | ± 0.10 | +20/0 | +3.0/0 | |
| 25.4–38.1 | ±0.15 | ||||
| 38.1–50.8 | ±0.20 | ||||
| 50.8–63.5 | ±0.25 | +22/0 | +5.0/0 | ||
| 63.5–76.2 | ±0.30 | ||||
| 76.2–101.6 | ±0.38 | ||||
| 101.6–190.5 | +0.38/-0.64 | ||||
| 190.5–228.6 | +0.38/-1.14 | ||||
Fotoana fandefasana: Jun-27-2023