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ASME SA423 GR.1 Low Alloy Steel Welded Tube For Boiler And Superheater
ASME SA423 GR.1 Low Alloy Steel Welded Tube For Boiler And Superheater
ASME SA423 GR.1 Low Alloy Steel Welded Tube For Boiler And Superheater
ASME SA423 GR.1 Low Alloy Steel Welded Tube For Boiler And Superheater
ASME SA423 GR.1 Low Alloy Steel Welded Tube For Boiler And Superheater
ASME SA423 GR.1 Low Alloy Steel Welded Tube For Boiler And Superheater
ASME SA423 GR.1 Low Alloy Steel Welded Tube For Boiler And Superheater
ASME SA423 GR.1 Low Alloy Steel Welded Tube For Boiler And Superheater
Specifications
Brand Name :
YuHong
Model Number :
ASME SA423 GR.1 ERW Tube
Certification :
ISO, ABS, BV, ISO, ASTM, SGS
Place of Origin :
China
MOQ :
200~500 KGS
Price :
Negotiable
Payment Terms :
T/T, L/C AT SIGHT
Supply Ability :
According to Clients' requirements
Delivery Time :
35-60 Days (Depend on Customer's Requirements)
Packaging Details :
Ply-wooden Cases with Plastic Caps on Tube's Both Ends
Product Name :
Low Alloy Steel Welded Tube
Tube Specification :
ASTM A423/ ASME SA423
Tube material :
Gr.1
Tube Type :
ERW
Tube's OD&WE :
Depend on Customer
Tube's length :
Depend on Customer
Tube's End :
Plain end
Application :
Superheater, Heat-Exchanger, Boiler
Description

ASME SA423 GR.1 Low Alloy Steel Welded Tube For Boiler and Superheater Application

ASME SA423 Grade 1 Electric Resistance Welded (ERW) tube is a low-alloy steel tube that is manufactured using the electric resistance welding process. This type of tube is part of the ASME (American Society of Mechanical Engineers) SA423 specification, which deals with low-alloy steel tubes that are intended for use in applications that require resistance to atmospheric corrosion. It is also designed for high-temperature and high-pressure service, particularly in boilers and heat exchangers.

Key Features:

1. Material Composition:

Chemical Requirements
Composition, %
Grade 1 Grade 2 Grade 3
Carbon, max 0.15 0.15 0.15
Manganese 0.55 max 0.50–1.00 0.70–1.40
Phosphorus 0.06–0.16 0.04 max 0.020 max
Sulfur, max 0.060 0.05 0.020
Silicon 0.10 min ... 0.55 max
Copper 0.20–0.60 0.30–1.00 0.25–0.45
Chromium 0.24–1.31 ... ...
Nickel 0.20–0.70 0.40–1.10 0.50 max
Molybdenum ... 0.10 min 0.20 max
Antimony ... ... 0.05–0.15

2. Mechanical Properties of ASME SA423 Grade 1 ERW Tubes

Property Grades 1 and 2 Grade 3
Tensile Strength 415 MPa (60,000 psi) 380 MPa (55,000 psi)
Yield Strength 255 MPa (37,000 psi) 230 MPa (33,000 psi)

Elongation, min (%),

(in 50 mm / 2 in)

 25 35
Hardness (Brinell/Rockwell) ≤ 170 HBW / ≤ 87 HRB

3. Standards & Specifications:

  • ASME SA423: Standard specification for seamless and welded low-alloy steel tubes for boilers and superheaters.
  • Grade 1: A specific grade under this standard, optimized for high-temperature service.
  • Complies with ASME Boiler and Pressure Vessel Code (BPVC) Section II for material properties.

4. Testing & Inspection:

  • Hydrostatic testing, ultrasonic testing (UT), or eddy current testing to ensure weld integrity.
  • Chemical and mechanical property verification per ASTM/ASME standards.

5. Advantages of SA423 Grade 1 ERW Tubes

Advantage Description
Cost-Effective Cheaper than seamless tubes while maintaining high strength and durability.

High-Temperature

Resistance

 Chromium-molybdenum (Cr-Mo) alloy provides excellent creep resistance at temperatures up to 450°C (850°F).
Good Weldability ERW process ensures a strong, uniform weld without filler metals, reducing defects.
Consistent Quality Precise dimensional control (OD, wall thickness) for reliable performance in pressure applications.
Corrosion Resistance Low-alloy steel composition resists oxidation and scaling in steam/high-heat environments.
Easier Fabrication ERW tubes can be easily bent, flared, and welded into complex systems.
Faster Production ERW manufacturing is quicker than seamless tube production, ensuring better availability.
ASME Compliance Meets strict Boiler & Pressure Vessel Code (BPVC) standards for safety and reliability.

Comparison with Other Grades:

SA423 Grade 1 vs. SA213 T11/T22: While SA213 covers similar Cr-Mo alloys, SA423 Grade 1 is specifically for ERW tubes, offering a balance of performance and affordability.

Key Applications

ASME SA423 Grade 1 Electric Resistance Welded (ERW) tubes are designed for high-temperature and high-pressure environments, making them ideal for:

  • Power Generation:

Boiler tubes in thermal power plants

Superheaters & reheaters (handling steam at elevated temperatures)

Heat exchangers & condensers

  • Oil & Gas / Petrochemical Industry:

Refinery heat exchangers

High-temperature pipelines

Furnace components

  • Industrial Process Equipment:

Chemical processing units

Pressure vessels

Thermal fluid systems

  • District Heating Systems:

Hot water supply pipelines

Steam distribution networks

ASME SA423 GR.1 Low Alloy Steel Welded Tube For Boiler And Superheater

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ASME SA423 GR.1 Low Alloy Steel Welded Tube For Boiler And Superheater

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Product Detail
Brand Name :
YuHong
Model Number :
ASME SA423 GR.1 ERW Tube
Certification :
ISO, ABS, BV, ISO, ASTM, SGS
Place of Origin :
China
MOQ :
200~500 KGS
Price :
Negotiable
Contact Supplier
ASME SA423 GR.1 Low Alloy Steel Welded Tube For Boiler And Superheater
ASME SA423 GR.1 Low Alloy Steel Welded Tube For Boiler And Superheater
ASME SA423 GR.1 Low Alloy Steel Welded Tube For Boiler And Superheater
ASME SA423 GR.1 Low Alloy Steel Welded Tube For Boiler And Superheater

YUHONG HOLDING GROUP CO., LTD

Verified Supplier
1 Years
ningbo
Since 1990
Business Type :
Manufacturer, Importer, Exporter, Trading Company, Seller, Other
Main Products :
Stainless Steel Heat Exchanger Tube, Studded Tube, Duplex Stainless Steel Heat Exchanger Tube
Total Annual :
50M-70M
Employee Number :
50~800
Certification Level :
Verified Supplier
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