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Stainless Steel Elbow A403 WP321H For High Temperature Piping Systems
Stainless Steel Elbow A403 WP321H For High Temperature Piping Systems
Stainless Steel Elbow A403 WP321H For High Temperature Piping Systems
Stainless Steel Elbow A403 WP321H For High Temperature Piping Systems
Stainless Steel Elbow A403 WP321H For High Temperature Piping Systems
Stainless Steel Elbow A403 WP321H For High Temperature Piping Systems
Stainless Steel Elbow A403 WP321H For High Temperature Piping Systems
Stainless Steel Elbow A403 WP321H For High Temperature Piping Systems
Specifications
Brand Name :
YUHONG
Model Number :
A403 WP321H
Certification :
ABS, GL, DNV, NK, PED, AD2000, CCS, ISO 9001-2008
Place of Origin :
CHINA
MOQ :
1PC
Price :
Negotiable
Payment Terms :
L/C,T/T
Supply Ability :
10000 PCS PER MONTH
Delivery Time :
Depending on QTY
Packaging Details :
Ply-wooden Case / Iron Case / As per client
Standard :
ASTM A403 / ASME SA403
Grade :
WP321H (Wrought Product, High-Temperature Service)
Dimensions :
ASME B16.9: 1/2" to 48" (DN15–DN1200)
Angles :
90°, 45°, 180° (LR/SR options)
Wall Thickness :
Sch 5S, 10S, 40S, 80S, 160S
Testing :
Hydrostatic Test, PMI, RT (per EN 10204 3.1/3.2)
Description

A403 WP321H Stainless Steel Elbow - High-Temperature Corrosion Resistant Pipe Fitting


Product Introduction


A403 WP321H Stainless Steel Elbows are ASME B16.9/B16.25 compliant butt-weld fittings engineered for extreme environments. The addition of Titanium (Ti) stabilizes the alloy against carbide precipitation, making it ideal for continuous high-temperature service (450°C–900°C) and corrosive media. These elbows are solution-annealed & quenched to maximize intergranular corrosion resistance in acidic, chloride-rich, and oxidizing conditions.


Key Advantages


Superior Heat Resistance – Maintains structural integrity up to 900°C
Stress Corrosion Cracking (SCC) Resistance – Critical for chemical/petrochemical applications
ASTM A403 & ASME B16.9 Certified – Guaranteed dimensional/tolerance compliance
Weld-Ready Design – Beveled ends ensure full-penetration weld integrity


Chemical Composition (ASTM A403 WP321H)



Element Content (%) Function
Carbon (C) ≤ 0.08 Controls strength & hardness
Chromium (Cr) 17.0–19.0 Corrosion/oxidation resistance
Nickel (Ni) 9.0–12.0 Austenite stability & toughness
Manganese (Mn) ≤ 2.00 Deoxidization & sulfur control
Silicon (Si) ≤ 1.00 Deoxidization & fluidity
Phosphorus (P) ≤ 0.045 Impurity control
Sulfur (S) ≤ 0.030 Machinability improvement
Titanium (Ti) ≥ 5xC min Prevents sensitization during welding


Technical Specifications



Parameter Specification
Standard ASTM A403 / ASME SA403
Grade WP321H (Wrought Product, High-Temperature Service)
Dimensions ASME B16.9: 1/2" to 48" (DN15–DN1200)
Angles 90°, 45°, 180° (LR/SR options)
Wall Thickness Sch 5S, 10S, 40S, 80S, 160S
Surface Finish Pickled & Passivated (ASTM A380)
Testing Hydrostatic Test, PMI, RT (per EN 10204 3.1/3.2)


Applications


Engineered for Demanding Industrial Service

  • Petrochemical: Crackers, reformers, FCC units (resists sulfidation)
  • Chemical Processing: Acid reactors, nitric acid condensers
  • Power Generation: Boiler superheaters, steam lines (>500°C)
  • Pharmaceutical: USP/EP-compliant CIP/SIP systems
  • Nuclear: Secondary cooling circuits (ASME III qualified)
  • Pulp & Paper: Digester liquor handling

Stainless Steel Elbow A403 WP321H For High Temperature Piping Systems

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Stainless Steel Elbow A403 WP321H For High Temperature Piping Systems

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Product Detail
Brand Name :
YUHONG
Model Number :
A403 WP321H
Certification :
ABS, GL, DNV, NK, PED, AD2000, CCS, ISO 9001-2008
Place of Origin :
CHINA
MOQ :
1PC
Price :
Negotiable
Contact Supplier
Stainless Steel Elbow A403 WP321H For High Temperature Piping Systems
Stainless Steel Elbow A403 WP321H For High Temperature Piping Systems
Stainless Steel Elbow A403 WP321H For High Temperature Piping Systems
Stainless Steel Elbow A403 WP321H For High Temperature Piping Systems

Yuhong Group Co.,Ltd

Verified Supplier
13 Years
zhejiang, ningbo
Since 2007
Business Type :
Manufacturer, Distributor/Wholesaler, Importer, Exporter, Trading Company, Seller, Other
Main Products :
Stainless Steel Seamless Pipe, Stainless Steel Seamless Tube, Duplex Stainless Steel Pipe
Total Annual :
50M-70M
Employee Number :
50~850
Certification Level :
Verified Supplier
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