ASME SA249 Welded Austenitic Tubes for Boilers, Superheaters, Heat Exchangers and Condensers
| OD inches | ID inches | D/t Ratio | Tubing Cross Sectional Area (in2) | Ave. Wall inches | Internal Area (in2) |
|---|---|---|---|---|---|
| 0.250 | 0.210 | 12.50 | 0.0145 | 0.020 | 0.0346 |
| 0.250 | 0.194 | 8.93 | 0.0195 | 0.028 | 0.0296 |
| 0.500 | 0.460 | 25.00 | 0.0302 | 0.020 | 0.1662 |
| 0.500 | 0.444 | 17.86 | 0.0415 | 0.028 | 0.1548 |
| 0.875 | 0.835 | 43.75 | 0.0537 | 0.020 | 0.5476 |
| 1.500 | 1.430 | 42.86 | 0.1611 | 0.035 | 1.6061 |
| 1.500 | 1.402 | 30.61 | 0.2234 | 0.049 | 1.5438 |
| 1.500 | 1.370 | 23.08 | 0.2930 | 0.065 | 1.4741 |
| 1.750 | 1.680 | 50.00 | 0.1886 | 0.035 | 2.2167 |
| 1.000 | 0.930 | 28.57 | 0.1061 | 0.035 | 0.6793 |
| 1.250 | 1.180 | 35.71 | 0.1336 | 0.035 | 1.0936 |
| 0.375 | 0.335 | 18.75 | 0.0223 | 0.020 | 0.0881 |
| 0.375 | 0.319 | 13.39 | 0.0305 | 0.028 | 0.0799 |
| 1.750 | 1.902 | 40.82 | 0.3003 | 0.049 | 2.8413 |
| 0.500 | 0.334 | 6.02 | 0.1087 | 0.083 | 0.0876 |
| 0.625 | 0.569 | 22.32 | 0.0525 | 0.028 | 0.2543 |
| 0.750 | 0.694 | 26.79 | 0.0635 | 0.028 | 0.3783 |
| 0.750 | 0.680 | 21.43 | 0.0786 | 0.035 | 0.3632 |
| 2.000 | 1.930 | 57.14 | 0.2161 | 0.035 | 2.9255 |
| 2.000 | 1.902 | 40.82 | 0.3003 | 0.049 | 2.8413 |
| 0.875 | 0.819 | 31.25 | 0.0745 | 0.028 | 0.5268 |
| 1.000 | 0.944 | 35.71 | 0.0855 | 0.028 | 0.6999 |
| 0.625 | 0.585 | 31.25 | 0.0380 | 0.020 | 0.2688 |
| 1.250 | 1.152 | 25.51 | 0.1849 | 0.049 | 1.0423 |
ASTM A249 Grade 316 Exchanger Tube Weight Chart
| Dimensions | Wall | Weight per |
|---|---|---|
| (mm) | (mm) | metre (kg) |
| 40 x40 | 3.00 | 3.75 |
| 50 x50 | 1.50 | 2.32 |
| 50 x50 | 2.00 | 3.08 |
| 50 x50 | 3.00 | 4.65 |
| 60 x60 | 2.00 | 3.71 |
| 20 x 20 | 2.00 | 1.19 |
| 25 x 25 | 1.20 | 0.92 |
| 25 x 25 | 1.50 | 1.14 |
| 80 x80 | 2.00 | 4.98 |
| 80 x80 | 3.00 | 7.53 |
| 15 x 15 | 1.20 | 0.53 |
| 15 x 15 | 1.50 | 0.65 |
| 30 x 30 | 1.20 | 1.10 |
| 30 x 30 | 1.50 | 1.37 |
| 30 x 30 | 2.00 | 1.84 |
| 25 x 25 | 2.00 | 1.49 |
| 25 x 25 | 3.00 | 2.20 |
| 100 x 100 | 2.00 | 6.40 |
| 60 x60 | 3.00 | 5.49 |
| 70 x70 | 3.00 | 6.53 |
| 30 x 30 | 3.00 | 2.72 |
| 40 x40 | 1.20 | 1.49 |
| 40 x40 | 1.50 | 1.85 |
| 12.7 x 12.7 | 1.20 | 0.44 |
| 12.7 x 12.7 | 1.50 | 0.55 |
| 40 x40 | 2.00 | 2.45 |
| 20 x 20 | 1.20 | 0.71 |
| 20 x 20 | 1.50 | 0.88 |
| 100 x 100 | 3.00 | 9.53 |
Offer SA 249 TP 316 Superheater and Condenser Tube Furnished With Heat Treated Condition
| Heat Treatment Process | Typical Temperature Range |
|---|---|
| Solution Annealing | 1,000°C to 1,100°C (1,832°F to 2,012°F) |
| Stress Relieving | 600°C to 750°C (1,112°F to 1,382°F) |
| Normalizing | 950°C to 1,100°C (1,742°F to 2,012°F) |
| Tempering (Post-Welding) | 500°C to 700°C (932°F to 1,292°F) |
Most Common Types of ASTM A249 TP316 Tubes
Buy ASTM A249 GR 316 ERW Tube Online With Nominal Wall Thickness and Heavily Cold Worked
| NPS | Wall Thickness | |
|---|---|---|
| + | – | |
| ≥ 20, seamless, t/D≤ 5% | 22.5 | 12.5 |
| ≥ 20, seamless, t/D> 5% | 15.0 | 12.5 |
| 3~18, t/D> 5% | 15.0 | 12.5 |
| ≥ 20, welded | 17.5 | 12.5 |
| 1/8-2 1 /2 | 20.0 | 12.5 |
| 3~18, t/D≤ 5% | 22.5 | 12.5 |
How is the corrosion resistance of ASTM A249 TP316 tubes tested?

| Temperature (°F) | Maximum Allowable Stress (MPa) | Maximum Allowable Stress (psi) |
|---|---|---|
| 100°F (38°C) | 207 MPa | 30,000 psi |
| 200°F (93°C) | 200 MPa | 29,000 psi |
| 300°F (149°C) | 193 MPa | 28,000 psi |
| 400°F (204°C) | 186 MPa | 27,000 psi |
| 500°F (260°C) | 179 MPa | 26,000 psi |
| 600°F (316°C) | 169 MPa | 24,500 psi |
| 700°F (371°C) | 158 MPa | 23,000 psi |
| 800°F (427°C) | 148 MPa | 21,500 psi |
| 900°F (482°C) | 138 MPa | 20,000 psi |
| 1000°F (538°C) | 128 MPa | 18,500 psi |
| 1100°F (593°C) | 117 MPa | 17,000 psi |
| 1200°F (649°C) | 103 MPa | 15,000 psi |
| 1300°F (704°C) | 90 MPa | 13,000 psi |
| 1400°F (760°C) | 83 MPa | 12,000 psi |
| 1500°F (816°C) | 76 MPa | 11,000 psi |
SA 249 316 SS Welded Austenitic Steel Tubes Testings
Tensile Test
Flattening Test
Flaring Test
Hydrostatic Test
Visual Inspection
Edging Test
Chemical Composition Test
Hardness Test
Impact Test
Weld Integrity Test
| Grade | UNS | JIS | WNR. / DIN | AFNOR |
|---|---|---|---|---|
| TP 316 | S31600 | SUS 316 | 1.4401 / 1.4436 | Z7CND17‐11‐02 |
| Material | Yield Strength | Tensile Strength | Heat | Temperure | Elongation %, Min |
|---|---|---|---|---|---|
| Ksi (MPa), Min. | Ksi (MPa), Min. | Treatment | Min.º F(º C) | ||
| TP316 | 25(170) | 70(485) | Solution | 1900 (1040) | 35 |
| Grade | Density (kg/m3) | Specific Heat 0-1000C (J/kg.K) | Thermal Conductivity (W/m.K) | Electrical Resistivity (n.m) | Mean Coefficient of Thermal Expansion (m/m/0C) | Elastic Modulus (GPa) | |||
|---|---|---|---|---|---|---|---|---|---|
| at 1000C | at 5000C | 0-1000C | 0-3150C | 0-5380C | |||||
| 316 | 8000 | 500 | 16.2 | 21.5 | 720 | 17.2 | 17.8 | 18.4 | 193 |
| Welding Process | Filler Material | Filler Material Specification |
|---|---|---|
| TIG (GTAW) | ER316 | AWS A5.9 / ASME SFA-5.9 |
| MIG (GMAW) | ER316 | AWS A5.9 / ASME SFA-5.9 |
| Stick (SMAW) | E316-16 | AWS A5.4 / ASME SFA-5.4 |
| Submerged Arc (SAW) | SA 316 | AWS A5.9 |
| Cost Variations 5 % extra | |
|---|---|
| Export to | Delivery Time |
| South Africa | 25-30 |
| Uk | 30 |
| Bahrain | 9 |
| Singapore | 8 |
| UAE | 5 days |
| Qatar | 7 |
| Kuwait | 10 |
| Netherlands | 19-20 |
| Germany | 15-50 |
| Oman | 5 |
| France | 30 |
| Saudi Arabia | 7 |
| Malaysia | 10 |
| Belgium | 6-9 |
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