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  • TOBO STEEL GROUP CHINA
    Brazil---Aimee
    In the latest vendor rating, TOBO won the excellent rating, it is good, will continue to cooperate.
  • TOBO STEEL GROUP CHINA
    Thailand ---Dave Mulroy
    ASTM A213 T9 Alloy steel pipe ,Stable quality , good price, excellent serive, TOBO GROUP is our trustworthy partner .
  • TOBO STEEL GROUP CHINA
    USA ---Alfaro
    ASTM A182 F55 Super Duplex Flange ,Good quality , we like that ! And delivery time in time also ,very professional.
Contact Person : Joy Wang
Phone Number : 0086-21-31261985
WhatsApp : +8613524668060

SS304/316L Butt Welded Pipe Cap SCH40/SCH80 ASME B16.9 Steel Pipe Fittings Cap

  • SS304/316L Butt Welded Pipe Cap SCH40/SCH80 ASME B16.9 Steel Pipe Fittings Cap
  • SS304/316L Butt Welded Pipe Cap SCH40/SCH80 ASME B16.9 Steel Pipe Fittings Cap
  • SS304/316L Butt Welded Pipe Cap SCH40/SCH80 ASME B16.9 Steel Pipe Fittings Cap
  • SS304/316L Butt Welded Pipe Cap SCH40/SCH80 ASME B16.9 Steel Pipe Fittings Cap
  • SS304/316L Butt Welded Pipe Cap SCH40/SCH80 ASME B16.9 Steel Pipe Fittings Cap
Place of Origin Shanghai,China
Brand Name TOBO
Certification ISO/TUV/SGS
Model Number Stainless Steel Pipe Cap
Minimum Order Quantity 1PC
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
Product Name SS304/316L Butt Welded Pipe Cap SCH40/SCH80 ASME B16.9 Steel Pipe Fittings Cap Ordinary 70mm;80mm;100mm; 150mm
Material Grrade UNS S32750 Port Shanghai, Ningbo
Packing Plastic Bag,carton,Wooden Case Certifications ISO9001/2008,ISO14001,OHSMS18000
End Type Threaded Technics Hot Press
Productname Stainless Steel Pipe Cap Wall Thickness Schedule 40
Payment Term T/T Name Product Pipe Cap
Type Butt Weld Cap, Threaded Cap, Socket Weld Cap Tikeness 5S-XXS
Finish Polished Testing UT,RT,MT,PT,ET
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SS304 butt welded pipe cap

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316L steel pipe fittings cap

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ASME B16.9 SCH40 pipe cap
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Product Description

SS304/316L Butt Welded Pipe Cap SCH40/SCH80 ASME B16.9 Steel Pipe Fittings Cap

 

1. Product Description

 

The stainless steel pipe cap is a terminal closure fitting used to seal the open end of a pipe in a pressure piping system. It is manufactured through cold‑forming or hot‑pressing processes from premium stainless steel billets or plates, ensuring uniform grain structure and consistent wall thickness. Depending on the design, it can be hemispherical, elliptical, dished, or flat. The cap is joined to the pipe by full‑penetration butt welding, socket welding, or threaded connections. It is dimensionally accurate to applicable ASME, EN, and JIS standards, and is supplied with carefully prepared weld bevels (for butt‑weld types) or precisely cut threads (for threaded types) to facilitate easy and reliable installation.

 

2. Product Applications

  • As a permanent closure for dead‑end pipe runs in refinery, chemical, and petrochemical plants.

  • As a temporary plug during pipeline pneumatic or hydrostatic testing, and in pre‑commissioning phases.

  • For sealing branch connections in fire‑fighting systems, water supply networks, and HVAC installations.

  • In sanitary applications (food, dairy, beverage, pharmaceutical) to maintain product purity and allow clean‑in‑place (CIP) procedures.

  • For protecting pipe ends during long‑distance transportation and outdoor storage.

  • Used in offshore platforms, shipbuilding, and nuclear power plants where safety and reliability are critical.

3. Product Advantages

  • Outstanding resistance to pitting and crevice corrosion – especially with 316/316L and duplex grades, making them suitable for chloride‑rich environments.

  • Excellent weldability – low carbon content (L‑grades) prevents intergranular corrosion after welding.

  • Precision‑machined sealing surfaces – ensure leak‑tight closure under repeated thermal cycling and pressure fluctuations.

  • High dimensional consistency – produced under strict quality control, with bevel angles, roundness, and wall thickness tolerances meeting or exceeding standard requirements.

  • Versatile grade selection – from standard austenitic to super‑austenitic and duplex steels, covering a wide range of corrosive media and temperatures.

  • Traceability – each cap is marked with heat number, material grade, size, and schedule, enabling full material traceability.

  • Customizable surface finish – available in mill finish, pickled and passivated, or mechanically polished to mirror finish (Ra ≤ 0.8 µm for sanitary use).

​SS304/316L Butt Welded Pipe Cap SCH40/SCH80 ASME B16.9 Steel Pipe Fittings Cap

​4.Key Specifications

Parameter Details / Available Range
Material Grades TP304, TP304L, TP316, TP316L, TP321, TP310S, TP347H, S31803 (Duplex 2205), S32750 (Super Duplex), 904L, N08904; also equivalent UNS and DIN designations.
Nominal Size DN15 – DN1200 (1/2″ – 48″). Seamless caps up to DN600; welded caps from DN50 to DN1200.
Wall Thickness Schedules SCH5S, SCH10S, SCH20, SCH30, SCH40S, SCH80S, SCH100, SCH120, SCH140, SCH160, XS, XXS.
End Connection Type Buttweld ends (BW) with beveled ends per ASME B16.25; Socket-weld ends (SW) per ASME B16.11; Threaded ends (NPT or BSPT) per ASME B1.20.1.
Design / Manufacturing Standards ASME B16.9 (for butt-weld caps), ASME B16.11 (for socket-weld and threaded caps), MSS SP43 (for light-wall stainless steel butt-weld caps), EN 10253-3/4, JIS B2311/B2312. Material standards: ASTM A403, A182, A240.
PressureTemperature Ratings For threaded/socket-weld: Class 150, 300, 600 (up to 600 psi @ 100°F, derated at higher temperatures). For buttweld: rating matches the connected pipe schedule and material, typically up to Class 2500 (on request).
Operating Temperature Range -196°C to +650°C (depending on grade – e.g., 316L up to 425°C, 310S up to 1000°C for oxidation resistance).
Surface Roughness (Sanitary) Ra ≤ 0.8 µm (electropolished optional).
NonDestructive Testing (NDT) Hydrostatic test (100% for threaded types), dye penetrant inspection, radiographic or ultrasonic examination available per customer specification.
Marking Per MSS SP-25: size, schedule, material, heat number, and manufacturer's trademark.
Packaging Wooden crates or steel pallets, with end protectors to prevent thread/bevel damage during transit.

 

FAQ

1. Are you trading company or manufacturer ? We are manufacturer ,You can see the certification.

2.How long is your delivery time? Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

3. Do you provide samples ? is it free or extra ? Yes, we could offer the sample for free charge but need pay the cost of freight.

4. What is your terms of payment ? Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.

 

Tags:

stainless steel pipe end caps

tube end caps

butt weld pipe cap