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Solution Annealed Butt Weld Fittings Pipe Cap 316L SCH80 ASME B16.9 DN100

Place of Origin Zhejiang, China
Brand Name HANPIPE
Certification ISO 9001:2015 / PED / EN 10204 3.1
Model Number BW-FITTING
Minimum Order Quantity 10 Pieces
Price USD 8-260 / Piece
Packaging Details Seaworthy wooden case or pallet with plastic end caps, customized marking available
Delivery Time 15-25 days after deposit
Payment Terms T/T,L/C,Western Union
Supply Ability 80000 Pieces per Month
Product Details
Product Name Solution Annealed Butt Weld Fittings Application Corrosion Resistant Piping
Heat Treatment Solution Annealed Material Grade 316L / 1.4404
Standard ASME B16.9 Size Range DN15 - DN600
Wall Thickness SCH10S - SCH160 Surface Finish Pickled And Passivated
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Solution Annealed Fittings

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316L Pipe Cap Butt Weld

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ASME B16.9 DN100 Cap

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Product Description
Solution Annealed Butt Weld Fittings Pipe Cap 316L SCH80 ASME B16.9 DN100
Heat treatment is a step that buyers rarely see but always depend on. This solution annealed butt weld fittings pipe cap is heated to high temperature and rapidly cooled so that the 316L stainless steel recovers its full corrosion resistance after forming.
When stainless steel is cold worked or welded, chromium carbides can form at the grain boundaries and reduce corrosion resistance. Solution annealing dissolves those carbides and restores a uniform austenitic structure, so these solution annealed butt weld fittings resist intergranular corrosion in aggressive chemical service.
Each pipe cap is pressed or formed from 316L plate or pipe, then solution annealed, pickled and passivated to produce a clean surface and a stable passive layer. The cap is machined to ASME B16.9 DN100 SCH80 dimensions for a precise weld fit.
Whether you cap a line during construction, terminate a manifold or protect a spare branch, the solution annealed butt weld fittings cap gives you a leaktight, corrosion resistant closure. Hardness, chemistry and PMI checks are performed on every batch.
Technical Specifications
Material Grade 316L / 1.4404
Product Type Pipe Cap
Heat Treatment Solution Annealed
Size Range DN15 (1/2 inch) - DN600 (24 inch)
Wall Thickness SCH10S - SCH160
Standard ASME B16.9
Surface Finish Pickled and Passivated
End Connection Butt Weld (BW)
Why Choose Our Solution Annealed Butt Weld Fittings
  • Solution annealing restores full corrosion resistance after forming.
  • Prevents intergranular corrosion in chemical and chloride service.
  • Uniform austenitic structure for stable mechanical properties.
  • Pickled and passivated for a clean, passive surface.
  • Machined to ASME B16.9 for accurate weld fit-up.
  • PMI and hardness checked on every batch.
Typical Applications
  • Chemical and pharmaceutical process lines
  • Food and beverage sanitary piping
  • Water treatment and desalination
  • Pulp and paper bleaching lines
  • General 316L stainless pipework
Every Solution Annealed Butt Weld Fittings is packed in seaworthy wooden cases or pallets with protective end caps. We offer customized marking and labeling, and can consolidate mixed sizes in a single shipment to reduce your freight cost and handling time.
As a Solution Annealed Butt Weld Fittings manufacturer, we support custom sizes, wall thicknesses and materials, and arrange third party inspection such as SGS, BV or TUV on request. Our engineers review every enquiry and recommend the material, wall thickness and standard that best match your pressure, temperature and corrosion requirements.
Each Solution Annealed Butt Weld Fittings order is dimensionally inspected against the applicable standard before dispatch, and our quality team retains a sample record that can be re-tested on request. We also welcome factory audits and pre-shipment inspections from overseas buyers, and can supply reference projects and test reports to support your tender documents.
Frequently Asked Questions
Q: Why does solution annealing matter for butt weld fittings?
Annealing dissolves chromium carbides that form during forming and welding, restoring corrosion resistance so the 316L fitting does not suffer intergranular attack.
Q: Is this cap suitable for chloride service?
Yes. The solution annealed and passivated 316L surface performs well in many chloride environments, and we can supply duplex or nickel alloy caps for more severe duty.
Q: Are hardness and chemistry tested?
Yes. Every batch of solution annealed butt weld fittings is checked by PMI and hardness testing and supplied with a certificate.
Q: Which sizes and schedules are available?
Cap sizes from DN15 to DN600 and wall thickness from SCH10S to SCH160, plus custom sizes.