ASTM A269 ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun bututun ƙarfe ne na austenitic bakin karfe don juriya na gabaɗaya da ƙarancin zafin jiki da ƙarancin zafin jiki. Astm A213 madaidaicin bayanai ne ga marasa kyau mara kyau da kuma Austenatic Alloy-Karfe, da kuma kwance tsakanin A269, A213 Life, da kuma kwance a cikin takamaiman ka'idodin da suke wakilta don tubing bakin karfe.
STANDARD ASTMA249 ASTM A269 ASTMA270 ASTM213
| Daidaitawa | Haƙuri na Waje Diamita (mm) | Kaurin bango (%) | Haƙuri Tsawon (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 | ||||
| Saukewa: 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 | ||||
| Saukewa: 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 | ||||
Lokacin aikawa: Juni-27-2023