Looking for a reliable source for **Carbon Steel ASTM A334 Grade 1 tubing**? Look no further than Filiz Steel, a reputable supplier based in Istanbul, Turkey. Our tubing is specifically crafted for **low-temperature service applications** and meets the rigorous **ASTM A334 specifications**. This seamless carbon steel tubing is built to withstand the toughest conditions, offering outstanding toughness, durability, and strength even in frigid environments. With its low carbon content, Grade 1 tubing is not only strong but also boasts excellent weldability, making it perfect for pressure vessels, heat exchangers, condensers, and process piping in cold climates.
Typically, ASTM A334 Grade 1 tubing features **a maximum of 0.30% carbon** and **0.40–1.06% manganese**, striking a perfect balance between strength and ductility at low temperatures. It provides a **minimum tensile strength of 380 MPa** and a **yield strength of 205 MPa**, and has been impact-tested at **-45°C (-50°F)** to guarantee reliable performance in extreme cold. Plus, it’s easily weldable and can be finished either cold or hot, depending on your project needs.
| Element | A/SA 334 Gr A1 |
| C | 0.30 max |
| Mn | 0.40-1.06 |
| P | 0.025 max |
| S | 0.025 max |
| Element | A/SA 334 |
| Tensile Strength, (MPa) | 380 min |
| Yield Strength, (MPa) | 205 min |
| Elongation min. % | 35 |
| Hardness, HB | 163 max |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
This tubing is a go-to choice in **cryogenic and low-temperature service industries**, finding its place in **LNG plants, power plants, refineries, petrochemical processing units, and refrigeration systems**. Its ability to resist brittle fracture in low temperatures makes it a trustworthy option for piping systems that face harsh weather or cryogenic operations. At Filiz Steel, we offer A334 Gr.1 tubing in a variety of sizes and wall thicknesses, all while adhering to strict quality standards and providing customizable options to meet your specific engineering requirements.
| Outside | Nominal | Wall | Inside | Weight |
| Diameter | Pipe Diameter | Thickness | Diameter | Lbs |
| Inches | Inches | Inches | Inches | Per Foot |
| 1.660 | 1-1/4 | .140 | 1.380 | 2.273 |
| 1.315 | 1 | .133 | 1.049 | 1.679 |
| 1.900 | 1-1/2 | .145 | 1.610 | 2.718 |
| 2.875 | 2-1/2 | .203 | 2.469 | 5.793 |
| 2.375 | 2 | .154 | 2.067 | 3.653 |
| 6.625 | 6 | .28 | 6.056 | 18.97 |
| 3.50 | 3 | .216 | 3.068 | 7.576 |
| 4.50 | 4 | .237 | 4.026 | 10.79 |
| 4 | 3-1/2 | .226 | 3.548 | 9.109 |
| 5.563 | 5 | .258 | 5.047 | 14.62 |
| 8.625 | 8 | .322 | 7.981 | 28.55 |
Carbon steel A334 G 1 Tubing is widely used in low temperature applications due to its excellent strength and durability. The primary use includes heat exchange, pressure vessel, capacitor and pipeline in industries such as oil and gas, petrochemical and power generation. Pipes are also used in mechanical systems that require power and resistance to the environment at low temperature. The ability to meet tough situations while maintaining performance makes a preferred option for industries that require reliable materials for building, transport and procedure. This pipe provides a cost -effective solution for applications where strength and cruelty are needed.
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.
Copyright 2025 Filiz Steel. All rights reserved
