ASTM A269 dia famaritana fenitra ho an'ny fantsona vy tsy misy harafesina austenitic seamless sy voahodina ho an'ny serivisy ankapobeny mahatohitra harafesina sy mari-pana ambany na avo. ASTM A249 dia famaritana fenitra ho an'ny fantsona boiler vy austenitic voahodina, superheater, exchanger hafanana, ary condenser. ASTM A213 dia famaritana fenitra ho an'ny fantsona boiler vy ferritic sy austenitic alloy-steel seamless, superheater, ary exchanger hafanana. Ny fahasamihafana misy eo amin'ny A269, A249, ary A213 dia eo amin'ny fenitra manokana asehon'izy ireo ho an'ny fantsona vy tsy misy harafesina.
FENITRA ASTMA249 ASTM A269 ASTMA270 ASTM213
| Malagasy | Fandeferana ny savaivony ivelany (mm) | Hatevin'ny rindrina（%） | Fandeferana ny halavany (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: 27 Jona 2023