Jiaxing MT stainless steel co.,ltd.
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ASTM A249 TP347 / 347H ERW Stainless Steel Welded Tube For Boiler
MTSCO is a leading manufacturer who is specialized in stainless steel seamless pipes , bright annealed tubes , seamless coiled tubing etc . In order to facilitate customers , we have welded pipes and tubes too . MTSCO has the most advanced producing and testing equipment . Our products are always satisfied with customers . Customers purchased our products created more profits .
ASTM A249 Standard :
| Size OD | Nominal Wall | Outside Diameter | Length | Wall |
| 1/2" (12.7) | 0.065" (1.65)/0.049" (1.25) | +/-0.005 (0.13) | +1/8" (3.18) - 0 | +/-10.0% |
| 3/4" (19.1) | 0.065" (1.65)/0.049" (1.25) | +/-0.005 (0.13) | +1/8" (3.18) - 0 | +/-10.0% |
| 1" (25.4) | 0.065" (1.65)/0.049" (1.25) | +/-0.005 (0.13) | +1/8" (3.18) - 0 | +/-10.0% |
| 1-1/2" (38.1) | 0.065" (1.65)/0.049" (1.25) | +/-0.008" (0.20) | +1/8" (3.18) - 0 | +/-10.0% |
| 2" (50.8) | 0.065" (1.65)/0.049" (1.25) | +/-0.008" (0.20) | +1/8" (3.18) - 0 | +/-10.0% |
| 2-1/2" (63.5) | 0.065" (1.65) | +/-0.010" (0.25) | +1/8" (3.18) - 0 | +/-10.0% |
| 3" (76.2) | 0.065" (1.65) | +/-0.010" (0.25) | +1/8" (3.18) - 0 | +/-10.0% |
| 4" (101.6) | 0.083" (2.11) | +/-0.015" (0.38) | +1/8" (3.18) - 0 | +/-10.0% |
| 6" (152.4) | 0.083" (2.11) | +/-0.030" (0.76) | +1" (25.4) - 0 | +/-10.0% |
| 6" (152.4) | 0.109" (2.77) | +/-0.030" (0.76) | +1" (25.4) - 0 | +/-10.0% |
| 8" (203.2) | 0.109" (2.77) | +0.061" (1.55)/-0.031" (0.79) | +1" (25.4) - 0 | +/-10.0% |
Application :
a) For fluid and gas transport
b) Structure and machining
c) Heat exchanger pipes etc
Chemical Composition
| C(max) | Si(max) | Mn(max) | P(max) | S(max) | Cr | Ni | Mo | Ti | |
| TP304/1.4301 | 0.080 | 1.00 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-10.5 | ||
| TP304L/1.4307 | 0.035 | 1.00 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-12.0 | ||
| TP304H/1.4948 | 0.04-0.10 | 1.00 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-12.0 | ||
| TP316/1.4401 | 0.080 | 1.00 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 11.0-14.0 | 2.0-3.0 | |
| TP316L/1.4404 | 0.035 | 1.00 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | |
| TP316Ti/1.4571 | 0.080 | 1.00 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | 0.7>5x(C+N) |
| TP321/1.4541 | 0.080 | 1.00 | 2.00 | 0.045 | 0.030 | 17.0-19.0 | 9.0-12.0 | 0.7>5x(C+N) | |
| TP317L/1.4449 | 0.080 | 1.00 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | 11.0-14.0 | 3.0-4.0 | |
| TP347H/1.4912 | 0.04-0.10 | 1.00 | 2.00 | 0.045 | 0.030 | 17.0-19.0 | 9.0-13.0 | ||
| TP309S/1.4833 | 0.080 | 1.00 | 2.00 | 0.045 | 0.030 | 22.0-24.0 | 12.0-15.0 | 0.75 | |
| TP310S/1.4845 | 0.080 | 1.00 | 2.00 | 0.045 | 0.030 | 24.0-26.0 | 19.0-22.0 | 0.75 |
| Stanard Wire Gauge ( Fomerly Imperial Wire Gauge ) SWG | |||||
| SWG | Wall Thickness | SWG | Wall Thickness | ||
| 0 | 0.324 | 8.23 | 21 | 0.032 | 0.81 |
| 1 | 0.3 | 7.62 | 22 | 0.028 | 0.71 |
| 2 | 0.276 | 7.01 | 23 | 0.024 | 0.61 |
| 3 | 0.252 | 6.4 | 24 | 0.022 | 0.56 |
| 4 | 0.232 | 5.89 | 25 | 0.02 | 0.51 |
| 5 | 0.212 | 5.38 | 26 | 0.018 | 0.46 |
| 6 | 0.192 | 4.88 | 27 | 0.0164 | 0.42 |
| 7 | 0.176 | 4.47 | 28 | 0.0148 | 0.38 |
| 8 | 0.16 | 4.06 | 29 | 0.0136 | 0.35 |
| 9 | 0.144 | 3.66 | 30 | 0.0124 | 0.31 |
| 10 | 0.128 | 3.25 | 31 | 0.0116 | 0.29 |
| 11 | 0.116 | 2.95 | 32 | 0.0108 | 0.27 |
| 12 | 0.104 | 2.64 | 33 | 0.01 | 0.25 |
| 13 | 0.092 | 2.34 | 34 | 0.0092 | 0.23 |
| 14 | 0.08 | 2.03 | 35 | 0.0084 | 0.21 |
| 15 | 0.072 | 1.83 | 36 | 0.0076 | 0.19 |
| 16 | 0.064 | 1.63 | 37 | 0.0068 | 0.17 |
| 17 | 0.056 | 1.42 | 38 | 0.006 | 0.15 |
| 18 | 0.048 | 1.22 | 39 | 0.0052 | 0.13 |
| 19 | 0.04 | 1.02 | 40 | 0.0048 | 0.12 |
| 20 | 0.036 | 0.91 | |||