ASTM A269 se yon spesifikasyon estanda pou tib asye pur austenitik san pwoblèm ak soude pou sèvis jeneral ki reziste korozyon ak tanperati ki ba oswa wo. ASTM A249 se yon spesifikasyon estanda pou tib chodyè, surchofè, echanjeur chalè ak kondansateur asye austenitik soude. ASTM A213 se yon spesifikasyon estanda pou tib chodyè, surchofè ak echanjeur chalè feritik ak austenitik san pwoblèm. Diferans ki genyen ant A269, A249 ak A213 se estanda espesifik yo reprezante pou tib asye pur.
ESTANDA ASTMA249 ASTM A269 ASTMA270 ASTM213
| Estanda | Tolerans Dyamèt Eksteryè a (milimèt) | Epesè miray (%) | Tolerans longè (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 | ||||
| ASTM A270 | ≤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 | ||||
Dat piblikasyon: 27 jen 2023