ASTM A403 WP321 Stainless Steel Butt Weld Cap 10 Inch Sch80 for High-Temperature Pipe Systems
ASTM A403 WP321 stainless steel butt weld cap designed for high-temperature pipe closure applications. This 10-inch Schedule 80 fitting provides permanent, leak-free sealing for industrial pipeline systems.
| Attribute | Value |
|---|---|
| Material | Stainless Steel WP321 / ASTM A403 WP321 |
| Standard | ASME B16.9 / ASTM A403 |
| Type | Cap, Seamless |
| Size | 10 inch (DN250) |
| Schedule | Sch 80s |
| Connection | Butt Weld |
| Application | High-Temperature Pipe Closure, Header Termination |
WP321 is a titanium-stabilized austenitic stainless steel specifically designed for high-temperature conditions (425-850°C). The titanium element effectively suppresses chromium carbide precipitation during welding or high-temperature service, providing excellent resistance to intergranular corrosion without requiring post-weld heat treatment.
This 10-inch Sch80 large-diameter, thick-walled WP321 pipe cap is engineered for sealing high-temperature and high-pressure pipelines in industries including:
- Petroleum refining
- Chemical processing
- Power generation
- Heating furnace pipelines
- Reactor pipelines
- Steam header heads
SMLSCO fittings are manufactured using hydraulic bulging technology and undergo comprehensive processing including heat treatment, surface acid washing, and end groove processing. Our facility maintains ISO, PED, and NORSOK M650 certifications with 150-ton inventory capacity and two-week delivery for standard sizes. All fittings receive 100% non-destructive testing with complete traceable quality records.
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