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ASME SA423 GR.1 Low Alloy Steel Seamless Boiler Tubes For Superheater Water Wall

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ASME SA423 GR.1 Low Alloy Steel Seamless Boiler Tubes For Superheater Water Wall

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 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

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

ASME SA423 Grade 1 Electric Resistance Welded (ERW) tube is a low-alloy steel tube manufactured using the electric resistance welding process. This specification covers low-alloy steel tubes designed for high-temperature and high-pressure service, particularly in boilers and heat exchangers, with excellent resistance to atmospheric corrosion.

Material Composition
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
Mechanical Properties
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
Standards & Specifications
  • ASME SA423: Standard specification for seamless and welded low-alloy steel tubes for boilers and superheaters
  • Grade 1: Optimized for high-temperature service applications
  • Complies with ASME Boiler and Pressure Vessel Code (BPVC) Section II for material properties
Testing & Inspection
  • Hydrostatic testing, ultrasonic testing (UT), or eddy current testing to ensure weld integrity
  • Chemical and mechanical property verification per ASTM/ASME standards
Key Advantages
  • Cost-Effective: More economical than seamless tubes while maintaining high strength and durability
  • High-Temperature Resistance: Chromium-molybdenum (Cr-Mo) alloy provides excellent creep resistance up to 450°C (850°F)
  • Good Weldability: ERW process ensures strong, uniform welds without filler metals
  • Consistent Quality: Precise dimensional control for reliable performance in pressure applications
  • Corrosion Resistance: Resists oxidation and scaling in steam/high-heat environments
  • ASME Compliance: Meets strict Boiler & Pressure Vessel Code standards for safety
Primary Applications
  • Power Generation: Boiler tubes in thermal power plants, superheaters & reheaters, heat exchangers & condensers
  • Oil & Gas / Petrochemical: 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 Seamless Boiler Tubes For Superheater Water Wall

Product Tags:

ASME SA423 seamless boiler tubes

      

Welded seamless boiler tubes

      

GR.1 water wall tube

      
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