ASTM A213 Steel Pipe
ASTM A213 covers seamless ferritic and austenitic steel boiler, Boiler Tube, and heat-exchange tubes, designated Grades T5, TP304, etc. Grades containing the letter, H, in their designation, have requirements different from those of similar grades not containing the letter, H. These different requirements provide higher creep-rupture strength than normally achievable in similar grades without these different requirements.
The tubing sizes and thickness usually furnished to this specification are 1⁄8 in. [3.2 mm] in inside diameter to 5 in. [127 mm] in outside diameter and 0.015 to 0.500 in. [0.4 to 12.7 mm], inclusive, in minimum wall thickness or, if specified in the order, average wall thickness. Tubing having other diameters may be furnished, provided such tubes comply with all other requirements of this specification.
Steel Grades – TP 304, TP 304L, TP 316, TP 316L, TP 321
Technical requirements acc. to ASTM A 450.
Size of pipes in accordance with ANSI/ASME B36.19M.
The quality of pipes is ensured by manufacturing process and non-destructive test.
Hardness of metal not less than 100 HB.
Length tolerance of measured pipes not greater than +10 mm.
Monitoring of continuity of metal by pneumotest with pressure of 6 bar is available.
Intergranular corrosion test in accordance with ASTM A262, Practice E is available.
Heat Treatment Requirements
| Grade | UNS Designation |
Heat Treat Type | Austenitizing/ Solutioning Temperature, min or range °F [°C] | Cooling Media | ASTM Grain Size No. B |
| TP304 | S30400 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
| TP304L | S30403 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
| TP304H | S30409 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | 7 |
| TP309S | S30908 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
| TP309H | S30909 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | 7 |
| TP310S | S31008 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
| TP310H | S31009 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | 7 |
| TP316 | S31600 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
| TP316L | S31603 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
| TP316H | S31609 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | 7 |
| TP317 | S31700 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
| TP317L | S31703 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
| TP321 | S32100 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
| TP321H | S32109 | Solution treatment | cold worked:2000[1090] hot rolled: 1925 [1050]H | water or another rapid cool | 7 |
| TP347 | S34700 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
| TP347H | S34709 | Solution treatment | cold worked:2000[1100] hot rolled: 1925 [1050]H | water or another rapid cool | 7 |
| TP444 | S44400 | subcritical anneal | . . . | . . . | . . . |
| 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 |
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| Yield Strength (Mpa) |
≥170；≥205 | ≥170；≥205 | ≥170；≥205 | |||
| Tensile Strength (Mpa) |
≥485；≥515 | ≥485；≥515 | ≥485；≥515 | |||
| Elongation(%) | ≥35 | ≥35 | ≥35 | |||
| Hydrostatic Test | D(mm) | Pmax (Mpa) |
D(mm) | Pmax (Mpa) |
D(mm) | Pmax (Mpa) |
| D<25.4 | 7 | D<25.4 | 7 | D≤88.9 | 17 | |
| 25.4≤D<38.1 | 10 | 25.4≤D<38.1 | 10 | |||
| 38.1≤D<50.8 | 14 | 38.1≤D<50.8 | 14 | |||
| 50.8≤D<76.2 | 17 | 50.8≤D<76.2 | 17 | D>88.9 | 19 | |
| 76.2≤D<127 | 24 | 76.2≤D<127 | 24 | |||
| D≥127 | 31 | D≥127 | 31 | |||
| 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. | O.D. Tolerance |
O.D. | O.D. Tolerance |
O.D. | O.D. 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 | +20%/-0 | D<12.7 | +/-15% | 10.3≤D≤73.0 | +20.0%/-12.5% | |
| 12.7≤D<38.1 | +/-10% | 88.9≤D≤457.0 t/D ≤5% |
+22.5%/-12.5% | |||
| D>38.1 | +22%/-0 | |||||
| D≥38.1 | +/-10% | 88.9≤D≤457.0 t/D >5% |
+15.0%/-12.5% | |||
| Mechanical properties | |||
| Steel Grade | Tensile Strength, N/mm2 (min) | Yield Strength, N/mm2 (min) | Elongation, % (min) |
| TP304 | 515 | 205 | 35 |
| TP304L | 485 | 170 | 35 |
| TP316 | 515 | 205 | 35 |
| TP316L | 485 | 170 | 35 |
| TP321 | 515 | 205 | 35 |
（1）Ferritic alloy cold-finished steel tubes shall be free of scale and suitable for inspection,a slight a mount of oxidation is not consideration scale.
（2）Ferritic alloy hot-finished steel tubes shall be free of loose scale and suitable for inspection.
（3）Stainless steel tubes shall be picked free of scale ,when bright annealing is used,pickling is not necessary.
（4）Any special finish requirement shall be subject to agreement between the supplier and the purchaser.
