ASTM A269 mangrupikeun spésifikasi standar pikeun pipa baja stainless austenitic anu mulus sareng dilas pikeun jasa tahan korosi umum sareng low- atanapi suhu luhur. ASTM A213 mangrupikeun spésifikasi standar pikeun boiler baja alloy feritik sareng austenitik anu mulus, superheater, sareng tabung penukar panas.
Standar ASTMA249 ASTM A269 ASTMA270 ASTM213
| Standar | Toleransi Diaméter Luar (mm) | Ketebalan témbok (%) | Kasabaran Panjang (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 | ||||
| ASTM 213 | 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 | ||||
waktos pos: Jun-27-2023