We are specialized in manufacturing,suppling & offering a wide range of ASTM A269 / A269M Seamless Tubes. We offer these products in different size, grades, specification & thicknesses as per the clients requirements. Our tubes are manufactured using supreme grade alloying elements, thus ensuring hardness and chemical resistance. Our products widely used in various application industry like oil & gas, pumps and petrochemicals, sugar mills and distilleries, cement and construction industries etc. We also offer competitive pricing on our responsible clients.
| Range | : | 1/2" OD - 12" OD, Guage: 25 SWG - 10 SWG |
| Type | : | Round, Square, Rectangle, Coil, "U" Shape, Hydraulic & Honed Tubes |
| Grades | : | 304,304L, 304H, 316, 316L, 316Ti, 316H, 321, 321H, 317, 317L, 347, 347H, 310, 310S, 310H, 904L. |
| Application | : | Boiler, superheater, and heat exchanger |
| Available Sizes | : | 0.187’’ to 4’’ (4.75 mm to 101.60 mm) |
| Wall Thickness | : | 0.016’’ to 0.118’’ (0.4 mm to 3 mm) |
Other grades or sizes may be available upon request.
| ASTM | A-179, A-192, A-209, A-210, A-213, A-333, A-334,A-556 |
| BS | 3059 (Pt-I Â Pt-II) |
| IS | 1914, 2416, 11714 |
| DIN | 17175 |
| IS | 1239 (Pt-I),1161 |
| BS | 980 |
| Material | ASTM A269 Chemical Composition % Max | ||||||||||
| C | Mn | P | S | Si | Cr | Ni | Mo | N B | Nb | Ti | |
| TP304 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | --- | --- | --- | --- |
| TP304L | 0.035 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-12.0 | --- | --- | --- | --- |
| TP316 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 | --- | --- | --- |
| TP316L | 0.035 D | 2.00 | 0.045 | 0.030 | 1.00 | 16.0-18.0 | 10.0-15.0 | 2.00-3.00 | --- | --- | --- |
| TP321 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 17.0-19.0 | 9.0-12.0 | --- | --- | --- | 5C -0.70 |
| TP347 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 17.0-19.0 | 9.0-12.0 | 10C -1.10 | --- | ||
| Material | Heat treatment | Temperure F (C) Min. | Hardness | |
| Brinell | Rockwell | |||
| TP304 | Solution | 1900 (1040) | 192HBW/200HV | 90HRB |
| TP304L | Solution | 1900 (1040) | 192HBW/200HV | 90HRB |
| TP316 | Solution | 1900(1040) | 192HBW/200HV | 90HRB |
| TP316L | Solution | 1900(1040) | 192HBW/200HV | 90HRB |
| TP321 | Solution | 1900(1040) F | 192HBW/200HV | 90HRB |
| TP347 | Solution | 1900(1040) | 192HBW/200HV | 90HRB |
| OD, inch | OD Tolerance inch(mm) | WT Tolerance % | Length Tolernace inch(mm) | |
| + | - | |||
| ≤1 /2 | ± 0.005 ( 0.13 ) | ±15 | 1 /8 ( 3.2 ) | 0 |
| > 1 /2~1 1 /2 | ±0.005(0.13) | ±10 | 1 /8(3.2) | 0 |
| > 1 1 /2~< 3 1 /2 | ± 0.010(0.25) | ±10 | 3 /16(4.8) | 0 |
| > 3 1 /2~< 5 1 /2 | ± 0.015(0.38) | ±10 | 3 /16(4.8) | 0 |
| > 5 1 /2~< 8 | ± 0.030(0.76) | ±10 | 3 /16(4.8) | 0 |
| 8~< 12 | ± 0.040(1.01) | ±10 | 3 /16(4.8) | 0 |
| 12~< 14 | ± 0.050(1.26) | ±10 | 3 /16(4.8) | 0 |
