Filiz Steel, located in Istanbul, Turkey, stands out as a top manufacturer and supplier of premium alloy steel piping solutions, including the highly regarded Alloy Steel P1 Pipes. These pipes are crafted in accordance with ASTM A335 standards, making them ideal for high-temperature and pressure applications in critical industrial settings. Filiz Steel takes pride in subjecting each pipe to thorough testing and quality control, ensuring they deliver exceptional strength, durability, and precise dimensions. With a solid foothold in the power generation, petrochemical, and oil & gas industries, Filiz Steel has earned a reputation as a reliable partner for clients seeking robust alloy steel piping systems.
Alloy Steel P1 Pipes are made from low-alloy steel, featuring small amounts of chromium (0.5%) and molybdenum (0.5%), which enhance their mechanical strength and oxidation resistance at high temperatures. These pipes typically boast good tensile strength, ranging from 380 to 550 MPa, with a yield strength close to 205 MPa. They also offer excellent weldability and formability. Designed to thrive in heat-intensive environments, P1 pipes maintain their structural integrity even under thermal stress and pressure.
| Alloy Steel P1 pipe Size | 1/2” NB to 36” NB |
| P1 Grade Steel Pipe Standard | ASTM A335 P1, SA335 P1 (with IBR Test Certificate) |
| ASTM A335 P1 Alloy Steel Pipe Schedules | SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules |
| SA335 P1 Pipe Thickness | 3-12mm |
| ASTM A335 P1 Pipes Tolerance | Cold drawn pipe: +/-0.1mm Cold rolled pipe: +/-0.05mm |
| ASTM A335 GR P1 Pipes Type | Seamless / ERW / Welded / Fabricated |
| Craft | Cold rolled and Cold drawn |
| UNS K11522 Pipes Length | Standard Double & In Cut length also. |
| ASTM A335 P1 Pipes available in Form of | Round, Square, Rectangular, Hydraulic Etc. |
| Specialized in | Large Diameter ASTM A335 P1 Pipe |
| Sa335 Grade P1 Pipe End | Plain End, Beveled End, Treaded |
| Application | Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service |
| Additional Testing | NACE MR 0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, H2 SERVICE, IBR, etc. |
| Alloy Steel P1 | C | Cr | S | Si | Mn | Mo | P |
| 0.05 – 0.15 | 1.00 – 1.50 | 0.025 max | 0.50 – 1.00 | 0.30 – 0.60 | 0.44 – 0.65 | 0.025 max |
| Tensile Strength, MPa | Yield Strength, MPa | Elongation |
| 415 min | 205 min | 30 min |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Filiz Steel is a major manufacturer and a supplier of premium Alloy Steel P1 pipe in Istanbul, the Turkey. With specialization in steel solutions, we offer a variety of products including carbon steel, alloy steel, light steel and galvanized steel. Our wide bearing has pipes, pipes, flanges, pipe fittings, forged fittings, sheets and plates. We are famous for our reliable distribution and extraordinary customer service, and are committed to offering high quality steel materials that ensure durability and better performance in different industrial applications. We are committed to skill, and we are your reliable partners for all steel requirements.
| ASTM | ASME | JIS G 3458 | UNS | BS | DIN | ISO | ABS | NK |
| A335 P1 | SA335 P1 | STPA 12 | K11597 | – | 17175 15Mo3 | 2604 II TS26 | ABS 6 | KSTPA 12 |
| 17177 15Mo3 | 2604 III TW26 |
| O.D.(mm) x Thickness(mm) | O.D(mm) x Thickness(mm) | O.D(mm) x Thickness(mm) |
|---|---|---|
| 38.1 x 3.2 | 57.0 x 4.9 | 76.2 x 4.0 |
| 38.1 x 4.0 | 57.0 x 6.3 | 76.2 x 5.0 |
| 38.1 x 6.3 | 57.0 x 7.9 | 76.2 x 6.3 |
| 42.4 x 3.2 | 60.3 x 3.2 | 82.5 x 4.5 |
| 42.4 x 4.0 | 60.3 x 3.6 | 88.9 x 3.2 |
| 44.5 x 3.2 | 60.3 x 5.0 | 88.9 x 3.6 |
| 44.5 x 6.3 | 63.5 x 3.2 | 88.9 x 4.0 |
| 48.3 x 3.2 | 63.5 x 3.6 | 101.6 x 3.6 |
| 48.3 x 3.6 | 63.5 x 4.0 | 101.6 x 4.5 |
| 50.8 x 4.5 | 63.5 x 6.3 | 101.6 x 6.3 |
| 51.0 x 3.2 | 63.5 x 7.9 | 114.3 x 3.6 |
| 51.0 x 3.6 | 70.0 x 3.2 | 114.3 x 5.0 |
| 51.0 x 6.3 | 70.0 x 3.6 | 139.7 x 4.0 |
| 57.0 x 3.2 | 70.0 x 6.3 | 139.7 x 5.0 |
| 57.0 x 3.6 | 76.2 x 3.6 | 139.7 x 6.3 |
| ASTM A335 P1 Pipe Size NPS | Pipe O.D. | Wall Thickness | Pipe I.D. | Weight per Foot |
| 1/2 | 0.84 | 0.109 | 0.622 | 0.85 |
| 0.147 | 0.546 | 1.09 | ||
| 0.188 | 0.464 | 1.31 | ||
| 0.294 | 0.252 | 1.72 | ||
| 3/4 | 1.05 | 0.113 | 0.824 | 1.13 |
| 0.154 | 0.742 | 1.48 | ||
| 0.219 | 0.612 | 1.95 | ||
| 0.308 | 0.434 | 2.44 | ||
| 1 | 1.315 | 0.133 | 1.049 | 1.68 |
| 0.179 | 0.957 | 2.17 | ||
| 0.250 | 0.815 | 2.85 | ||
| 0.358 | 0.599 | 3.66 | ||
| 1 1/4 | 1.66 | 0.140 | 1.380 | 2.27 |
| 0.191 | 1.278 | 3.00 | ||
| 0.250 | 1.160 | 3.77 | ||
| 0.382 | 0.896 | 5.22 | ||
| 1 1/2 | 1.90 | 0.145 | 1.610 | 2.72 |
| 0.200 | 1.500 | 3.63 | ||
| 0.281 | 1.338 | 4.86 | ||
| 0.400 | 1.100 | 6.41 | ||
| 2 | 2.375 | 0.109 | 2.157 | 2.64 |
| 0.154 | 2.067 | 3.66 | ||
| 0.218 | 1.939 | 5.03 | ||
| 0.250 | 1.875 | 5.68 | ||
| 0.281 | 1.813 | 6.29 | ||
| 0.344 | 1.687 | 7.47 | ||
| 0.436 | 1.503 | 9.04 | ||
| 2 1/2 | 2.875 | 0.120 | 2.635 | 3.53 |
| 0.203 | 2.469 | 5.80 | ||
| 0.216 | 2.443 | 6.14 | ||
| 0.250 | 2.375 | 7.02 | ||
| 0.276 | 2.323 | 7.67 | ||
| 0.375 | 2.125 | 10.02 | ||
| 0.552 | 1.771 | 13.71 |
These Alloy Steel P1 Pipes find extensive use in high-temperature service applications, such as boiler tubes, heat exchangers, steam lines, and pressure piping systems. They are particularly well-suited for power plants, refineries, and chemical processing facilities, where thermal resistance, durability, and reliable performance are essential. Their capability to withstand moderate corrosion and high pressure makes them a smart and dependable choice for long-term industrial applications, whether in standard or challenging operating conditions.
Filiz Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Istanbul, Turkey.
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