Looking for high-quality ASTM A423 Grade 1 Corten Steel Pipe & Tubes? GNEE is a leading manufacturer and exporter of premium Corten steel pipes and tubes, including seamless and welded (ERW) types.

Our ASTM A423 GR 1 pipes and tubes are corrosion-resistant, durable, and develop a natural rust-like patina, making them ideal for outdoor sculptures, bridges, marine transport, intermodal containers, and large structural applications.
With a wide range of sizes and grades, GNEE ensures your project receives pipes and tubes that meet international standards and provide long-term performance.
ASTM A423 Grade 1 Corten Steel Pipe & Tubes Specifications
GNEE supplies ASTM A423 GR 1 Corten Steel Pipes & Tubes in multiple standards and forms:
Standards: ASTM A423 GR.1, ASTM A847, ASTM 588, ASTM 606
Diameter: ½" OD to 16" OD (12.7 mm – 406.4 mm)
Grade: ASTM A423 GR.1
Type: Round, Square, Rectangle, Hydraulic, Honed Tubes
Length: Single Random, Double Random, Cut Length
Ends: Plain End, Beveled End
These tubes and pipes are designed for structural, industrial, and marine applications, providing reliable performance in harsh environments.
Chemical Composition of ASTM A423 Grade 1 Corten Steel Pipes & Tubes
| Element | C | Mn | P | S | Si | Cu | Cr | Ni |
|---|---|---|---|---|---|---|---|---|
| Max % | 0.15 | 0.55 | 0.06–0.16 | 0.06 | 0.10 min | 0.20–0.60 | 0.24–1.31 | 0.20–0.70 |
This composition enhances corrosion resistance, oxidation resistance, and stress corrosion cracking resistance, making the material suitable for industrial and outdoor environments.
Mechanical Properties of ASTM A423 Grade 1 Corten Steel Pipes & Tubes
| Property | Value |
|---|---|
| Tensile Strength (MPa) | ≥ 415 |
| Yield Strength (MPa) | ≥ 255 |
| Elongation (%) | ≥ 30 |
These properties ensure structural strength and flexibility, suitable for high-pressure and high-stress applications.
Applications of ASTM A423 Grade 1 Corten Steel Pipes & Tubes
GNEE ASTM A423 GR 1 pipes and tubes are widely used across industries:
Petrochemical & Oil & Gas pipelines
Air Preheater Units & Economisers
Refineries, Nuclear Power, Cement & Water Supply Systems
Steel Plants, Mills, Engineering Companies
Power Generation & Fossil Fuel Plants
Breweries, Chemical & Steam Generating Boilers
Shipbuilding, Heat Exchangers, Architectural Construction
Cogeneration Facilities & Large Structural Applications
Their natural rust patina protects the core from further corrosion, reducing maintenance and extending service life.
Why Choose GNEE for ASTM A423 Grade 1 Corten Steel Pipes & Tubes
Wide Range of Products: Seamless, ERW, various diameters and lengths
Certified Quality: ISO & API certified; third-party inspection available
Durable & Maintenance-Free: Rust patina naturally protects the material
Custom Services: CNC cutting, surface finishing, beveled ends
Fast & Safe Delivery: Seaworthy packaging for export
GNEE is your trusted supplier of ASTM A423 Grade 1 Corten Steel Pipes & Tubes, offering corrosion-resistant, weathering steel for industrial, marine, and structural applications.
With high-strength, low-alloy composition, wide range of sizes, and reliable delivery, our pipes and tubes provide long-term performance and durability.
Contact us for latest ASTM A423 Grade 1 Corten Steel Pipe price list to get your quote and secure your order today!
Contact us for the latest ASTM A423 Grade 1 Corten Steel ERW Tubes

What is the chemical composition of ASTM A423 Grade 1?
The chemical compositions present in the A423 Gr 1 grade are carbon, phosphorus, manganese, sulfur, copper, and silicon. The high content of carbon, manganese, and sulfur provides improved oxidation resistance, pitting resistance to an acidic environment, crevice resistance, and stress corrosion cracking resistance.
What is SA 423 material?
ASTM A423 Weathering Steel Pipes Gr. 1 is popularly used in outdoor sculptures. ASTM A423 Corten Steel Tubes GRADE 1 is also used in bridge and other large structural applications. The chemical elements present in this Corten steel tube are carbon, phosphorus, manganese, sulfur, copper, silicon.
What are the common sizes and dimensions of ASTM A423 pipes?
ASTM A423 pipes are available in a variety of outer diameters, wall thicknesses, and lengths, depending on whether they are seamless or welded. The standard covers nominal pipe sizes ranging from 1/8 inch to 24 inches, with wall thickness and length varying according to application requirements.
What are the mechanical properties of ASTM A423 pipes?
These pipes are designed for high-temperature applications and therefore have high tensile strength, yield strength, and creep resistance. Typical properties include a tensile strength of 415–550 MPa, yield strength of 205–275 MPa, and elongation suitable for forming and welding. Exact values depend on the pipe grade and wall thickness.
Where are ASTM A423 pipes commonly used?
ASTM A423 pipes are widely used in boilers, heat exchangers, superheaters, and power plant equipment. They are ideal for piping systems carrying high-temperature steam, hot liquids, or gases, where corrosion resistance and dimensional stability under heat are required.







