Products Description
A606 Steel Pipes and Tubes are widely used in structural engineering, covering a full range of steel products, including plates and sheets. These products play a crucial role in automotive components, power generation equipment, oil well tubing, and more. A606 steel pipes typically contain 0.10–0.25% carbon, 0.30–0.70% manganese, 0.20–0.40% chromium, 0.20–0.50% copper, and may include trace amounts of titanium or vanadium to enhance strength and corrosion resistance.
Compared with materials like stainless steel or aluminum, ASTM A606 pipes offer exceptional durability and mechanical performance. The material provides a yield strength of up to 50 ksi (approximately 345 MPa), tensile strength up to 70 ksi (approximately 485 MPa), elongation of no less than 20% on 2-inch or 50 mm specimens, and a Brinell hardness not exceeding 170 HB.
These properties make it ideal for humid or acidic environments, such as coastal facilities, chemical plants, and mining equipment. Its excellent weldability ensures seamless integration into various industrial systems and supports cold forming or welding operations without cracking or defects.
A606 steel pipes are available in a variety of sizes and thicknesses, with wall thickness ranging from 2–25 mm and diameters from 50–500 mm, meeting diverse industrial requirements for strength, corrosion resistance, and structural performance.
ASTM A606 Weathering Steel Chemical Composition
| TYPE II & IV | |
|---|---|
| CARBON | 0.22% |
| MANGANESE | 1.25% |
| SULFUR | 0.04% |
| COPPER | 0.20% MIN |
| TYPE V | |
|---|---|
| CARBON | 0.09% |
| MANGANESE | 0.70-0.95% |
| PHOSPHORUS | 0.025% |
| SULFUR | 0.010% |
| SILICON | 0.40% |
| NICKEL | 0.52-0.76% |
| CHROMIUM | 0.30% |
| COPPER | 0.65-0.98% |
| TITANIUM | 0.015% |
| VANADIUM | 0.015% |
| NIOBIUM | 0.08% |
A606 Steel Mechanical PropertiesA for Hot-Rolled Material
| As-Rolled | Annealed or Normalized | |
|---|---|---|
| Tensile strength, min ksi (MPa) | 70 [480] | 65 [450] |
| Yield strength, min, ksi (MPa) | 50 [340] | 45 [310] |
| Elongation in 2 in. or 50 mm, min, % | 22 | 22 |
AST A606 Mechanical Properties for Cold-Rolled Material
| Cut Lengths and Coils | |
|---|---|
| Tensile strength, min ksi (MPa) | 65 [450] |
| Yield strength, min, ksi (MPa) | 45 [310] |
| Elongation in 2 in. or 50 mm, min, % | 22A |
ASTM A606 Material Properties
| GRADE | YIELD POINT (KSI) | TENSILE STRENGTH (KSI) | MIN. 2" ELONGATION % |
|---|---|---|---|
| TYPE II & IV – AS-ROLLED | 50 | 70 | 22 |
| TYPE II & IV – ANNEALED OR NORMALIZED | 45 | 65 | 22 |
ASTM A606 Equivalent
| DIN | AFNOR | BS | GB | UNS |
|---|---|---|---|---|
| 1.0402 | C22 | C22 | 20 | G10200 |
Application
Due to its high-strength, low-alloy properties and excellent atmospheric corrosion resistance, ASTM A606 pipes are widely used across various industries. By carefully balancing carbon, manganese, chromium, and copper content, and adding small amounts of titanium or vanadium, these pipes achieve a yield strength of 50 ksi (approximately 345 MPa), tensile strength of 70 ksi (approximately 485 MPa), elongation above 20%, and maintain consistent performance across wall thicknesses of 2–25 mm and diameters of 50–500 mm.
In structural engineering, ASTM A606 pipes are commonly used for building frameworks, bridges, and other structural components, where their high strength and corrosion resistance ensure long-term load-bearing capacity and stability. In the automotive industry, they are used to manufacture chassis tubes, exhaust components, and frame structures, providing reliable performance in a wide range of environmental conditions. Power plants also utilize these pipes in piping systems and supporting structures, as they maintain structural integrity even under high temperature, humidity, or corrosive conditions.
In the oil and gas industry, ASTM A606 pipes are used for well tubing and transport pipelines, with sufficient strength and corrosion resistance to withstand challenging offshore and onshore environments. Industrial equipment and machinery also rely on these pipes to maintain durability under high loads and corrosive conditions. In architectural applications, ASTM A606 pipes are used for outdoor sculptures, facades, and decorative elements, where their surfaces naturally develop a weathered layer over time, providing aesthetic appeal while reducing maintenance needs, and supporting a wide range of design dimensions and thicknesses.
