Description
A403 WP321 Material Overview: ASTM A403 WP321 is a titanium-stabilized austenitic stainless steel, offering excellent corrosion resistance. This material is specifically designed to resist intergranular corrosion after exposure to temperatures within the chromium carbide precipitation range of 427°C–816°C. Commonly used in plumbing systems, Stainless Steel 321 Pipe Fittings help connect pipes of the same or different sizes, regulate or measure flow, and provide durability in demanding environments.
Key Features of Stainless Steel 321 Pipe Fittings:
- Oxidation Resistance: Resists oxidation at temperatures up to 1500°F.
- Superior Creep & Stress Rupture Properties: Outperforms 304 and 304L alloys in creep and stress rupture conditions.
- Low-Temperature Toughness: Provides reliable performance even in lower temperatures.
- Weldability: Easily welded and processed using standard shop fabrication methods.
- Non-Hardenable by Heat Treatment: Hardens only through cold working.
Types of 321 Stainless Steel Pipe Fittings:
- 321 Stainless Elbows: Installed to change the direction of the flow between pipes. Available in 45° and 90° angles, with both long-radius (1.5 times the pipe diameter) and short-radius (equal to the pipe diameter) options.
- A403 WP321 Tee: T-shaped fitting with two outlets at 90° to the connection line, typically used for branching pipelines.
- A403 WP321H Reducer: Utilized in power plants and chemical industries to connect pipes of varying sizes, providing compactness and reliability to the piping system.
321H Pipe Fittings:
These fittings, with their added high carbon content, provide enhanced creep resistance at high temperatures. They are known for:
- Excellent Oxidation Resistance: Performance up to 1500°F (816°C).
- Easy Installation & Leak Prevention: Designed for simple installation, while minimizing risks of leakage or thermal deformation.
Table of Contents:
- Stainless Steel 321 Pipe Fittings Price List
- ASTM A403 WP321 Material Specification Chart
- Common Types of 321H Stainless Steel Pipe Fittings
- Dimension Standards for 321 Stainless Elbows
- ASTM A403 WP321 Elbow Dimensions Chart
- A403 WP321 Tee Dimension Table
- 321 Stainless Elbow Equivalent Grades
- A403 WP321H Reducer Chemical Composition Chart
- Mechanical Properties of 321H Fittings
Stainless Steel 321 Pipe Fittings Price List:
| Type | Description | USA FOB Price | Malaysia FOB Price | Europe FOB Price | Singapore FOB Price | Saudi Arabia (KSA) FOB Price |
|---|---|---|---|---|---|---|
| Stainless Steel 321/321H Buttweld Fittings | Size: 4″NB x SCH.40, 45° Elbow | $13.37 | MYR 54.42 | €11.23 | SGD 17.92 | SAR 50.14 |
ASTM A403 WP321 Pipe Fittings Material Specification:
- Specifications: ASTM A403
- Sizes:
- Seamless Butt Weld Fittings: 1/2″ – 10″
- Welded Butt Weld Fittings: 1/2″ – 48″
- Dimensions: ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS1560
- Thickness: SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH80, SCH100, SCH120, SCH140, SCH160, XXS (Available with NACE MR 01-75)
- Type: DN15-DN1200
- Connection: Welding
- Bending Radius: R=1D, 2D, 3D, 5D, 6D, 8D, 10D or custom
- Size Range: ½” NB to 24″ NB in Sch 10s, 40s, 80s, 160s, XXS. (DN6~DN100)
Common Applications:
- Power plants
- Chemical industries
- Shipbuilding
- Gas and petroleum processing
- Construction industries
