ASME SA423 Grade 1 ERW Tubes High-Pressure Carbon Steel Tubing Seamless Equivalent

ASME SA423 Grade 1 Electric Resistance Welded (ERW) Tubes

Our ASME SA423 Grade 1 ERW Tubes are manufactured to the stringent requirements of the ASME Boiler

 and Pressure Vessel Code, Section II. This grade represents a cost-effective, high-performance carbon steel

 solution specifically designed for high-temperature and high-pressure service in boilers, superheaters, and

 heat exchangers. The Electric Resistance Welding (ERW) process ensures excellent dimensional consistency

and a reliable, homogenous weld seam, making Grade 1 ERW tubes a proven equivalent alternative to seamless 

tubes in many demanding applications. Strict quality control guarantees compliance with all chemical, mechanical, 

and dimensional specifications.

Grade 1 Material Composition: Precise Chemistry for Performance

The controlled chemical composition of ASME SA423 Grade 1 is fundamental to its weldability, formability, and strength at elevated temperatures. The typical analysis is shown below:

ASME SA423 Grade 1 Equivalent Grades & Specifications

ASME SA423 Grade 1 ERW is recognized globally under these comparable standards:

ASME SA423 Grade 1 Mechanical Properties

ASME SA423 Grade 1 ERW tubes deliver reliable strength and ductility required for pressurized systems:

ASME SA423 Grade 1 Dimensional Tolerances

Our Grade 1 ERW tubes are produced to meet or exceed standard dimensional tolerances:

Key Application Areas: Where ASME SA423 Grade 1 ERW Tubes Excel

Leveraging its carbon steel composition and certified performance, SA423 Grade 1 ERW is ideal for:

• Boiler Tubes: Waterwall tubes, economizers, risers, downcomers in low-to-medium pressure boilers.
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• Superheaters & Reheaters: Lower temperature sections where Grade 1 properties suffice.
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• Heat Exchanger Tubes: Shell-and-tube exchangers in process industries, power generation.
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• Pressure Vessel Components: Manways, nozzles, internal tubing (subject to design code approval).
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• Structural Applications: High-strength support elements in high-temperature environments.
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• Fossil Fuel Power Plants: Various heat transfer applications within water/steam circuits.
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• Industrial Process Piping: For non-corrosive fluids and gases at elevated temperatures/pressures.
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Why Choose Our ASME SA423 Grade 1 ERW Tubes?

• ASME Code Compliance: Fully certified to SA-423 standards, traceable with MTCs (Mill Test Certificates).

• ERW Process Advantage: Consistent dimensions, smooth finish, and a strong, homogeneous weld.

• Cost-Effective Solution: Provides performance comparable to seamless tubes at a competitive price point.

• High-Pressure Reliability: Proven material properties for demanding boiler and pressure vessel service.

• Quality Assurance: Rigorous in-process and final inspection, including mandatory NDT.

• Global Equivalency: Accepted worldwide under major pressure equipment codes.

• Carbon Steel Performance: Optimal balance of strength, ductility, and weldability for target applications.