ASTM A269 taybetmendiyek standard e ji bo lûleyên pola zengarnegir a austenîtîk ên bêserûber û weldkirî ji bo karûbarên gelemperî yên li hember korozyonê û germahiya nizm an bilind. ASTM A249 taybetmendiyek standard e ji bo boylerê pola austenîtîk a welded, superheater, guhezkera germê, û lûleyên kondensatorê. ASTM A213 taybetmendîyek standard e ji bo boyler-pola-pola, sergermker, û lûleyên veguhezkerê germê yên ferrît û austenîtîk ên bêserûber. Cûdahiya di navbera A269, A249, û A213 de di standardên taybetî de ne ku ew ji bo lûleyên pola zengarnegir temsîl dikin.
STANDARD ASTMA249 ASTM A269 ASTMA270 ASTM213
| Rêzan | Tolerans ji Diameter Derve (mm) | Qûrahiya dîwar (%) | Toleransa Dirêjiyê (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 | ||||
Dema şandinê: Jun-27-2023