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ASTM A403 WP321/321H Stainless Steel Stub Ends Lap Joint Butt Weld 2 Inch to 60 Inch SCH40S SCH160S

  • ASTM A403 WP321/321H Stainless Steel Stub Ends Lap Joint Butt Weld 2 Inch to 60 Inch SCH40S SCH160S
  • ASTM A403 WP321/321H Stainless Steel Stub Ends Lap Joint Butt Weld 2 Inch to 60 Inch SCH40S SCH160S
  • ASTM A403 WP321/321H Stainless Steel Stub Ends Lap Joint Butt Weld 2 Inch to 60 Inch SCH40S SCH160S
  • ASTM A403 WP321/321H Stainless Steel Stub Ends Lap Joint Butt Weld 2 Inch to 60 Inch SCH40S SCH160S
  • ASTM A403 WP321/321H Stainless Steel Stub Ends Lap Joint Butt Weld 2 Inch to 60 Inch SCH40S SCH160S
Place of Origin Shanghai, China
Brand Name WNRLN
Certification ISO/TUV/SGS
Model Number ASTM A403 WP321/321H
Minimum Order Quantity 1 PC
Price Negotiable
Packaging Details Standard Shipping Package
Delivery Time 15-30 Workdays
Payment Terms T/T,Western Union
Supply Ability 10 Ton/Month
Product Details
Material Standard ASTM A403 Material Grade WP321, WP321H
Type Lap Joint, Butt Weld Size Range 2 Inch - 60 Inch
Wall Thickness SCH40S, SCH80S, SCH160S Connection Type Butt Weld End
Standard ASME B16.9, MSS SP-43 Surface Treatment Pickling, Passivation
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WP321H Stub End

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321 Stainless Stub End

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High Temp Stub End
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Product Description
ASTM A403 WP321 321H Stainless Steel Stub Ends Lap Joint Butt Weld 2 Inch to 60 Inch SCH40S SCH160S ASME B16.9
Product Overview

Titanium-stabilized ASTM A403 WP321/321H stainless steel stub ends specifically engineered for elevated temperature service up to 900°C. The titanium addition prevents intergranular corrosion after exposure to temperatures in the chromium carbide precipitation range of 425-850°C, making these stub ends the preferred choice for high-temperature piping systems.

Key Features
  • Titanium Stabilized: Prevents chromium carbide precipitation during welding and high-temperature exposure, eliminating intergranular corrosion risk
  • High Temperature Performance: WP321H carbon-controlled grade optimized for service temperatures up to 900°C (1650°F)
  • Large Diameter Range: Available up to 60 inch for major industrial piping installations
  • Heavy Wall Capability: SCH160S for high-pressure elevated temperature applications
  • Certified Quality: ISO, TUV, SGS certified with elevated temperature mechanical test reports
Technical Specifications
Parameter Specification
Material Standard ASTM A403
Material Grade WP321, WP321H
Size Range 2" - 60" (DN50 - DN1500)
Wall Thickness SCH40S, SCH80S, SCH160S
Type Lap Joint / Butt Weld
Standard ASME B16.9, MSS SP-43
Max Service Temp 900°C (1650°F)
Applications

Designed for high-temperature refinery piping, petrochemical furnace tubes, thermal oxidizers, exhaust systems, heat treatment furnaces, power generation boiler components, and any application where sustained elevated temperature exposure is expected.

Packaging & Delivery

Standard shipping package with protective end caps. Delivery within 15-30 workdays from order confirmation. Supply capacity: 10 tons per month. Custom fabrication available on request.

Contact us today for a competitive quotation on ASTM A403 WP321/321H Stainless Steel Stub Ends. ISO/TUV/SGS certified, reliable delivery, factory-direct pricing.
Tags:

Stub End Fittings

Lap Joint Stub End

SS Stub End