ASTM A269 yog tus qauv kev tshwj xeeb rau kev sib khi thiab welded owenitic steel tub rog rau kev siv hluav taws xob dav hlau boiler, super-hloov pauv, thiab cov tub rog condenser. ASTM A213 yog ib tus qauv kev ua txhaum rau cov neeg sib txawv thiab cov qauv sib dhos, thiab cua sov sib txawv hauv cov qauv uas lawv sawv cev rau cov hlau tshwj xeeb.
Txheem astma249 astm a269 ttma270 ASTM213
| Lub hom phiaj | Kev kam rau sab nraud lub taub (hli) | Phab Ntsa Thickness (%) | Ntev ntev (hli) | ||
| 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% | 06 ≥38.1 | + 4.0-0.0 | |
| ≥203.2- <304.8 | ± 1.01 | ||||
| ≥304.8- <355.6 | 3.26 | ||||
| Asursma270 | ≤254 | ± 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 | Lus hauv no teb +20 | + 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 | ||||
Lub sij hawm Post: Jun-27-2023