Kasugai Shanghai Co., Ltd.
                                                                                                           
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Tools & Hardware Pipe Fittings

ASTM A403 Stainless Steel Butt Weld End Caps 1/2" to 48" Size Range WP304 WP316

Price Negotiable
Price: Negotiable
MOQ: Negotiable
Delivery Time: 30 - 60 working days
Brand: Kasugai
Product Description
Product Overview
ASTM A403 WP304/L, WP316/L, WP310S, and WP321 B16.9 stainless steel butt welding end caps are precision fittings designed for sealing pressure vessels and pipe ends in industrial systems. These caps provide leak-proof sealing and protect pipe ends from deformation, chipping, and internal thread damage.
Key Specifications
Parameter Specification
Size Range 1/2" to 48"
Wall Thickness Sch5 to Sch160 XXS
Standards ASTM A403
Grade WP304/L, WP316/L, WP310S, WP321
Manufacturing Standards ASME B16.9, MSS-SP-43
ASME B16.9 End Cap Dimensions
ASME B16.9 stainless steel end cap dimensional chart showing NPS, O.D., and E measurements
The cap is welded to the pipe end and is not included in the length dimension of the pipe run, ensuring precise system measurements.
Material Chemical Composition
Grade WP UNS Designation C Mn P S Si Ni Cr Mo Ti
WP304 S30400 0.08 2.00 0.045 0.030 1.00 8.0-11.0 18.0-22.0
WP304L S30403 0.030E 2.00 0.045 0.030 1.00 8.0-12.0 18.0-22.0
WP310S S31008 0.08 2.00 0.045 0.030 1.00 19.0-22.0 24.0-26.0
WP316 S31600 0.08 2.00 0.045 0.030 1.00 10.0-14.0 16.0-18.0 2.00-3.00
WP316L S31603 0.030E 2.00 0.045 0.030 1.00 10.0-14.0 16.0-18.0 2.00-3.00
WP321 S32100 0.08 2.00 0.045 0.030 1.00 9.0-12.0 17.0-19.0 G
Applications & Benefits
  • Leak-proof sealing for pressure vessels and pipe systems
  • Elimination of air blocks in water-carrying pipelines
  • Protection against pipe end deformation and chipping
  • Internal thread protection for pipes and tubes
  • Suitable for engineering industry and energy conversion plants

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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Kasugai Shanghai Co., Ltd.
Location Rm.8415, Bldg. A8, No. 808 Hongqiao Road, Xuhui District, Shanghai 200030, Chia
Contact Person Chovy kasugai

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