Service Metal
316 Stainless Steel MSS SP-43 Type A Butt Weld Stub End – Sch 10
- Availability:
- Allow 1-2 Days to Ship
- Weight:
- 0.00 LBS
Description
316 Stainless Steel MSS SP-43 Type A Butt Weld Stub End – Sch 10
316/L Stainless Steel Schedule 10S Type A Butt Weld Stub Ends are designed for use with lap joint flanges to create removable, corrosion-resistant piping connections. Manufactured from A/SA403 WP316/L stainless steel, these fittings provide excellent weldability, dependable strength, and enhanced resistance to chemicals, moisture, and many chloride-containing environments.
The MSS SP-43 Type A configuration provides a standardized lap and barrel profile for compatible flange assemblies. Available sizes range from 1/2" through 8".
Product Highlights
- Manufactured from A/SA403 WP316/L stainless steel
- Schedule 10S wall thickness
- Type A butt weld stub end configuration
- MSS SP-43 dimensional design
- Designed for use with compatible lap joint flanges
- Low-carbon construction supports dependable weld performance
- Excellent corrosion resistance
- Suitable for many chemical and chloride-containing environments
- Allows lap joint flange rotation for easier bolt-hole alignment
- Available in sizes from 1/2" through 8"
Technical Specifications
| Product Type | Butt Weld Stub End |
|---|---|
| Material | 316/L Stainless Steel |
| Material Specification | A/SA403 WP316/L |
| Pipe Schedule | Schedule 10S |
| Connection Type | Butt Weld (BW) |
| Stub End Type | MSS SP-43 Type A |
| Flange Compatibility | Designed for use with compatible lap joint flanges |
| Available Sizes | 1/2" through 8" |
| Applications | Chemical processing, food and beverage, pharmaceutical, marine, sanitary, commercial, industrial, and process piping systems |
Construction Details
316/L Stainless Steel
Constructed from low-carbon 316/L stainless steel for enhanced corrosion resistance and dependable weldability in demanding process environments.
Type A Lap Profile
The Type A stub end incorporates a formed lap and barrel profile designed to mate with compatible lap joint flanges and provide a stable flange-facing surface.
Schedule 10S Fit-Up
The stub end is designed for butt weld installation with corresponding Schedule 10S stainless steel pipe for consistent alignment and permanent welded attachment.
Material & Stub End Design
Material Construction
- 316/L stainless steel
- A/SA403 WP316/L specification
- Enhanced corrosion resistance
- Low-carbon chemistry for improved weldability
- Suitable for demanding process applications
Stub End Configuration
- MSS SP-43 Type A design
- Schedule 10S wall thickness
- Butt weld pipe connection
- Lap and barrel profile
- Designed for lap joint flange assemblies
- Allows flange rotation during assembly
Why Use a Stub End with a Lap Joint Flange?
A stub end is butt welded directly to the pipe while the lap joint flange remains loose behind the lap. Because the flange can rotate independently, bolt-hole alignment can be simplified during assembly. This arrangement is also useful for piping systems where future inspection, maintenance, or disassembly may be required.
Why Use 316/L Stainless Steel?
316/L stainless steel provides enhanced corrosion resistance for demanding applications involving moisture, chemicals, salts, and many chloride-containing media. Its low-carbon chemistry also supports dependable welding performance in permanent stainless steel piping systems.
Available Sizes
These Schedule 10S 316/L stainless steel Type A butt weld stub ends are available in nominal pipe sizes from 1/2" through 8". Select the stub end size that matches the nominal diameter of the Schedule 10S stainless steel pipe and compatible lap joint flange being installed.
Typical Applications
Sanitary & Process
- Food and beverage piping
- Pharmaceutical systems
- Chemical processing piping
- Sanitary process systems
Industrial & Corrosive Service
- Marine piping systems
- Industrial process piping
- Lap joint flange assemblies
- Applications requiring enhanced corrosion resistance
Pipe Size Reference
Need help confirming nominal pipe diameter or Schedule 10S wall thickness before ordering? Use our common pipe diameter and wall thickness reference chart to verify the correct pipe size for your installation.
Product Documents
Service Metal Schedule 10S Stub End Spec Sheet
Review the product specification sheet for dimensions and additional manufacturer information for Schedule 10S stainless steel butt weld stub ends.
Certificate of Conformance
Review the available Certificate of Conformance documentation for applicable product and material information.
Need Help Selecting the Correct 316 Stainless Steel Stub End?
Our industrial PVF specialists can help confirm your required pipe size, Schedule 10S wall thickness, material, stub end type, and compatible lap joint flange before you order.
Frequently Asked Questions
What is a butt weld stub end used for?
A butt weld stub end is welded to the end of a pipe and used with a lap joint flange to create a removable flanged piping connection.
What material are these stub ends made from?
These stub ends are manufactured from A/SA403 WP316/L stainless steel.
What pipe schedule are these stub ends designed for?
These fittings are designed for Schedule 10S stainless steel piping systems.
What standard do these stub ends follow?
These stub ends use an MSS SP-43 Type A configuration.
Why use a lap joint flange with a stub end?
The stub end provides the flange-facing surface while the lap joint flange remains free to rotate, which can simplify bolt-hole alignment during assembly.
Is the lap joint flange included?
No. The lap joint flange is sold separately unless otherwise specified.
Why choose 316/L stainless steel?
316/L stainless steel provides enhanced corrosion resistance for demanding environments and is commonly used in chemical, marine, sanitary, pharmaceutical, and food processing applications.
What sizes are available?
These Schedule 10S 316/L stainless steel Type A butt weld stub ends are available in nominal pipe sizes from 1/2" through 8".
How do I select the correct stub end?
Select the nominal stub end size that matches the Schedule 10S stainless steel pipe and verify compatibility with the lap joint flange being used in the assembly.
Important Ordering & Installation Notes
- Select the nominal stub end size that matches the Schedule 10S stainless steel pipe being installed.
- Available nominal sizes range from 1/2" through 8".
- Material: A/SA403 WP316/L stainless steel.
- Pipe schedule: Schedule 10S.
- Configuration: MSS SP-43 Type A butt weld stub end.
- Connection: Butt weld (BW).
- Designed for use with compatible lap joint flanges.
- Lap joint flange is sold separately unless otherwise specified.
- Verify nominal pipe size, wall thickness, stub-end length, flange compatibility, pressure requirements, service conditions, and applicable piping codes before installation.
- Professional stainless steel welding procedures should be followed to maintain joint integrity and corrosion resistance.
