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ASTM A403 WP321-S Austenitic Stainless Steel Return Bend Elbow For Piping Systems

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ASTM A403 WP321-S Austenitic Stainless Steel Return Bend Elbow For Piping Systems

Brand Name : YuHong

Model Number : ASTM A403 WP321-S

Certification : ISO,PED, TUV, ABS, DNV, GL , LR , KR, BV, CCS, COST

Place of Origin : China

MOQ : 1 PC

Price : Negotiable

Payment Terms : T/T,L/C AT SIGHT

Supply Ability : According to Clients' requirements

Delivery Time : Generally within 30 Days

Packaging Details : Ply-wooden Cases/Pallets

Product Name : 180 Degree Return Bend/Elbow

Specification : ASTM A403

Material : WP321-S

Radius : LR or SR (Depend on Customer's Requirements)

Surface : Sand Tumbling or Sand Blasting

Test : Size Inspection, NDE Test...

Size Standard : ASME B16.9

Application : Heat Exchangers, Piping Systems, Oil and Gas Industry, Water Tretment

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ASTM A403 WP321-S Stainless Steel 180 Degree U Bend/Elbow
Product Specifications
Attribute Value
Product Name 180 Degree Return Bend/Elbow
Specification ASTM A403
Material WP321-S
Radius LR or SR (Depend on Customer's Requirements)
Surface Sand Tumbling or Sand Blasting
Test Size Inspection, NDE Test
Size Standard ASME B16.9
Application Heat Exchangers, Piping Systems, Oil and Gas Industry, Water Treatment
Product Description

ASTM A403 WP321-S refers to a high-performance stainless steel fitting designed for piping systems requiring exceptional corrosion resistance and high-temperature stability. The 180-degree configuration enables complete flow reversal, making it ideal for demanding industrial applications.

180-Degree U Bend Characteristics
  • Shape: Tight U-shaped fitting with 180-degree turn
  • Design: Small radius for space-constrained installations
  • Applications: Heat exchangers, boiler systems, compact piping configurations
180-Degree Elbow Characteristics
  • Shape: Gradual curved fitting with 180-degree direction change
  • Design: Larger radius for smoother flow transition
  • Applications: General piping systems, chemical processes, fluid handling systems
Material Composition (Type 321 Stainless Steel)
Element Composition (% by weight)
Carbon (C) ≤ 0.08%
Manganese (Mn) ≤ 2.00%
Phosphorus (P) ≤ 0.045%
Sulfur (S) ≤ 0.030%
Silicon (Si) ≤ 1.00%
Chromium (Cr) 17.00% - 19.00%
Nickel (Ni) 9.00% - 12.00%
Titanium (Ti) ≥ 5 × (C%) (min. 0.10%)
Iron (Fe) Balance

Titanium stabilization prevents chromium carbide formation during welding or high-temperature exposure, enhancing intergranular corrosion resistance.

Mechanical Properties
Property Value
Tensile Strength ≥ 515 MPa (75,000 psi)
Yield Strength (0.2% offset) ≥ 205 MPa (30,000 psi)
Elongation (in 2 inches) ≥ 35%
Hardness (Rockwell B) ≤ 95 HRB
Key Features
  • Exceptional high-temperature performance (up to 900°C/1650°F)
  • Superior corrosion and oxidation resistance
  • Seamless construction for high-pressure reliability
  • Excellent weldability with titanium stabilization
Industrial Applications
  • High-Temperature Systems: Heat exchangers, boilers, furnaces
  • Chemical Processing: Corrosive chemical handling, process piping
  • Power Generation: Steam lines, turbine bypass systems
  • Oil & Gas: Refinery piping, offshore platforms
  • Sanitary Industries: Food/pharmaceutical processing, CIP systems
ASTM A403 WP321-S Austenitic Stainless Steel Return Bend Elbow For Piping Systems

Product Tags:

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