ASTM A269 vs A312 Difference Between ASTM A269 and A312
What is ASTM A269 and ASTM A312 / ASME SA312?
ASTM A269 / A269M Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service
ASTM A312 / A312M Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipe
| Standard Item | ASTM A213 | ASTM A269 | ASTM A312 |
| Grade | 304 304L 304H 304N 304LN 316 316L 316Ti 316N 316LN 321 321H 310S 310H 309S 317 317L 347 347H | 304 304L 304H 304N 304LN 316 316L 316Ti 316N 316LN 321 321H 310S 310H 309S 317 317L 347 347H | 304 304L 304H 304N 304LN 316 316L 316Ti 316N 316LN 321 321H 310S 310H 309S 317 317L 347 347H |
| Yield Strength (Mpa) | ≥170；≥205 | ≥170；≥205 | ≥170；≥205 |
| Tensile Strength (Mpa) | ≥485；≥515 | ≥485；≥515 | ≥485；≥515 |
| Elongation(%) | ≥35 | ≥35 | ≥35 |
| Hydrostatic Test | OD(mm) Pressure max (MPa) | OD(mm) Pressure max (MPa) | OD(mm) Pressure max (MPa) |
| D<25.4, 7Mpa | D<25.4, 7Mpa | D≤88.9, 17MPa | |
| 25.4≤D<38.1, 10Mpa | 25.4≤D<38.1, 10Mpa | ||
| 38.1≤D<50.8, 14Mpa | 38.1≤D<50.8, 14Mpa | ||
| 50.8≤D<76.2， 17MPa | 50.8≤D<76.2， 17MPa | D>88.9, 19MPa | |
| 76.2≤D<127， 24MPa | 76.2≤D<127， 24MPa | ||
| D≥127, 31Mpa | D≥127, 31Mpa | ||
| P=220.6t/D | P=220.6t/D | P=2St/D S=50%Rp0.2 | |
| Intergranular Corrosion Test | ASTM A262 E | ASTM A262 E | ASTM A262 E |
| Eddy Current Test | ASTM E426 | ASTM E426 | ASTM E426 |
| O.D. Tolerance (mm) | O.D. and Tolerance | O.D. and Tolerance | O.D. and Tolerance |
| D<25.4 +/-0.10 | D<38.1 +/-0.13 | 10.3≤D≤48.3 +0.40/-0.80 | |
| 25.4≤D≤38.1 +/-0.15 | |||
| 38.1<D<50.8 +/-0.20 | 38.1≤D<88.9 +/-0.25 | 48.3<D≤114.3 +0.80/-0.80 | |
| 50.8≤D<63.5 +/-0.25 | |||
| 63.5≤D<76.2 +/-0.30 | 88.9≤D<139.7 +/-0.38 | 114.3<D≤219.1 +1.60/-0.80 | |
| 76.2≤D≤101.6 +/-0.38 | |||
| 101.6<D≤190.5 +0.38/-0.64 | 139.7≤D<203.2 +/-0.76 | 219.1<D≤457.0 +2.40/-0.80 | |
| 190.5<D≤228.6 +0.38/-1.14 | |||
| W.T. Tolerance (mm) | O.D. W.T. Tolerance | O.D. W.T. Tolerance | O.D. W.T. Tolerance |
| D≤38.1 WT +20%/-0 | D<12.7 WT +/-15% | 10.3≤D≤73.0 WT +20.0%/-12.5% | |
| D>38.1 WT +22%/-0 | 12.7≤D<38.1 WT +/-10% | 88.9≤D≤457.0 t/D ≤5% WT +22.5%/-12.5% | |
| D≥38.1 WT: +/-10% | 88.9≤D≤457.0 t/D >5% WT +15.0%/-12.5% |
Differences of ASTM A312 And ASTM A269
| Standard | ASTM A312 | ASTM A269 |
| Basic Difference | Welded and Seamless Steel Pipe | Welded and Seamless Steel Tubing |
| Wall Thickness | Average wall thickness (+/-10%) | Average wall thickness (+/-10%) |
| Applications | Stainless steel pipe for high-temperature and general corrosive service. | Performs well in corrosion resistance and oxidation resistance required in elevated temperature. |
ASTM A213 ASME SA213 TP304 TP304L TP309S TP310S TP316 TP316L TP316Ti TP321 TP317L TP347H Stainless Steel Heat Exchanger Tubes
ASTM A312 ASME SA 312 TP304 TP304L TP304H TP316 TP316L TP317L TP321 TP316Ti TP347 TP347H TP310S TP309S Stainless Steel Pipe
EN 10216-5 1.4301 1.4307 1.4948 1.4401 1.4404 1.4541 1.4571 1.4438 1.4841 1.4845 1.4539 Stainless Steel Tube Tubing
ASTM A213 ASME SA213 304H 321H 347H 309S 310S 316H S31035 800HT N08811 N08825 Reheater Tubes and Superheater Tubes for Boiler
ASTM A789 ASME SA 789 S31803 S32205 S32101 S32750 S32760 S32304 S31500 S31260 Seamless Tubes
ASTM A790 ASME SA790 S31803 S32205 S32101 S32750 S32760 S32304 S31500 S31260 Seamless Pipe
EN 10216-5 1.4462 1.4362 1.4162 1.4410 1.4501 Seamless Tubes
Difference Between ASTM A213 and ASTM A269
Difference Between ASTM A213 and ASTM A312
Difference Between ASTM A269 and ASTM A312