ASTM A423 / A423M seamless and electric-welded low-alloy steel tubes supplier. Full specifications, mechanical properties, and corrosion-resistant applications. Contact us for latest A423 / A423M steel tube price list.
Overview of ASTM A423 / A423M Low-Alloy Steel Tubes
Are you sourcing ASTM A423 / A423M low-alloy steel tubes for boilers, air preheaters, or economizers? Solitaire Overseas is a professional steel manufacturer and supplier, providing high-quality Grade 1, Grade 2, and Grade 3 seamless and electric-welded (ERW) tubes.
ASTM A423 / A423M seamless and electric-welded low-alloy steel tubes
These tubes are made of Corten-type low-alloy steel, designed for high corrosion resistance, excellent mechanical properties, and durability under elevated pressure and temperature.
ASTM A423 / A423M tubes are widely used in power plants, fossil fuel facilities, and chemical processing plants, ensuring safety and long service life for pressure-containing applications.
ASTM A423 / A423M Tube Specifications
| Property | Specification |
|---|---|
| Outer Diameter (O.D) | 12.7 mm – 127 mm |
| Wall Thickness (W.T) | 0.9 mm – 12.7 mm |
| Grade | Grade 1, Grade 2, Grade 3 |
| Hardness | 170 HB or 87 HRB |
| Process | Hot Finished or Cold Finished |
| Heat Treatment | Normalized or as per request |
| Ends | Plain, beveled, square cut, burr-free |
| Length | Standard random length or custom per requirement |
Solitaire Overseas maintains ample stock of ASTM A423 / A423M tubes and supports custom sizes and heat treatment options to meet your specific project requirements.
Mechanical Properties and Quality Tests
ASTM A423 / A423M low-alloy steel tubes undergo strict quality control and testing to ensure reliability in high-pressure and corrosive environments:
- Tension Test
- Flattening & Reverse Flattening Test
- Flaring Test
- Flange Test
- Hardness Test
- Hydrostatic Test
These tests ensure tubes withstand high stress, temperature fluctuations, and corrosive media, making them ideal for boiler and heat exchanger applications.
Applications of ASTM A423 / A423M Steel Tubes
ASTM A423 / A423M tubes are suitable for various pressure-containing and corrosion-resistant applications:
- Steam Generating Boilers – for high-temperature steam transfer
- Economizers – improving thermal efficiency in power plants
- Air Preheater (APH) Units – corrosion-resistant heat exchange
- Industrial Chemical Plants – resistant to acidic and corrosive environments
- Fossil Fuel Power Plants & Cogeneration Facilities – durability under thermal stress
The low-alloy composition and Corten-type characteristics provide superior rust protection and extend service life, reducing maintenance and replacement costs.
Why Choose Solitaire Overseas for ASTM A423 / A423M Tubes
- Full-stock of Grade 1, 2, and 3 seamless & ERW tubes
-
Supports customized OD, wall thickness, and length
- Stringent quality control with third-party inspection available
- Fast delivery and flexible packaging options
ASTM A423 / A423M seamless and ERW low-alloy steel tubes are perfect for boilers, economizers, and air preheater units requiring long-term corrosion resistance and mechanical reliability.
Solitaire Overseas guarantees superior quality, competitive prices, and rapid delivery.
Contact us for latest ASTM A423 / A423M steel tube price list and stock availability.
Contact us for latest ASTM A423 / A423M steel tube price list
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.
