Flowtera Pipe
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Seamless & Welded Alloy Steel Pipe / Tube
Alloy steel pipes are manufactured by adding alloying elements such as chromium (Cr), molybdenum (Mo), nickel (Ni), and manganese (Mn) into carbon steel to improve mechanical strength, heat resistance, wear resistance, and pressure-bearing performance.
Our alloy steel pipes include both seamless alloy steel pipes and welded alloy steel pipes, produced in accordance with international standards such as ASTM, EN, DIN, JIS, and GB.
They are widely used in boilers, pressure vessels, oil & gas systems, hydraulic equipment, mechanical structures, power plants, and industrial pipelines.
| Standard | Common Grades |
|---|---|
| ASTM | A335 P11, P22, A519 4130, 4140 |
| EN | 42CrMo4, E470, 34CrMo4 |
| DIN | 1.7225, 1.7035 |
| JIS | SCM420, SCM440 |
| GB | 20Cr, 40Cr, 42CrMo |
| Grade | C | Mn | Si | Cr | Mo |
|---|---|---|---|---|---|
| 20Cr | 0.17–0.23 | 0.50–0.80 | ≤0.40 | 0.70–1.00 | — |
| 40Cr | 0.37–0.44 | 0.50–0.80 | ≤0.40 | 0.80–1.10 | — |
| 42CrMo | 0.38–0.45 | 0.60–0.90 | ≤0.40 | 0.90–1.20 | 0.15–0.25 |
| 4140 | 0.38–0.43 | 0.75–1.00 | ≤0.40 | 0.80–1.10 | 0.15–0.25 |
| Size Range & Technical Parameters | |
|---|---|
| Outside Diameter | 10 – 820 mm |
| Wall Thickness | 1.5 – 100 mm |
| Length | 6 m / 12 m / Customized |
| Pipe End | Plain End / Beveled End / Threaded |
Providing high-value steel and metal solutions since 1985. We specialize in an extensive range of metal products tailored to meet unique customer requirements across various industries including aerospace, automotive, and oil & gas.
Main Product Categories:
| Copper Alloy | Copper Plate / Sheet, Bar, Tube, Coil, Brass / Bronze | Alloy Steel | Alloy Steel Plate, Bar, Tube, Coil, High Strength Steels |
| Aluminum Alloy | Aluminum Plate, Bar, Tube, Wire, Forging Parts | Stainless Steel | Stainless Steel Plate, Bar, Tube, Duplex Steel |
