Service Metal
Carbon Steel - Weld Concentric Reducer
- SKU:
- SCR
- Availability:
- Usually Ships Same Day
- Weight:
- 0.00 LBS
Description
Carbon Steel Weld Concentric Reducer
Carbon Steel Weld Concentric Reducers are designed to connect pipes of different diameters while maintaining a centered transition between the larger and smaller pipe sizes.
Manufactured from durable carbon steel, these butt weld reducers provide a permanent welded connection for industrial, commercial, mechanical, structural, and process piping applications. Available in Standard, Schedule 160, Extra Heavy, and Double Extra Heavy options, they are ideal for systems requiring strength, weldability, and dependable pipe-size transitions.
Product Highlights
- Carbon steel butt weld concentric reducer
- Connects pipes of different diameters
- Centered transition keeps pipe centerlines aligned
- Provides a smooth, symmetrical reduction in pipe size
- Permanent welded connection
- Available in Standard, Schedule 160, Extra Heavy, and Double Extra Heavy options
- Seamless butt weld fittings conform to ASTM A/SA234 WPB through 24"
- Weld fitting dimensions conform to ASME/ANSI B16.9, B16.11, and B16.28 through 24"
- Weld fitting dimensions larger than 24" conform to MSS-SP-48
- Carbon content not to exceed 0.25% maximum
- Manufacturing facilities are ISO certified
- Mill Test Reports available with every order
Technical Specifications
| Product Type | Concentric Reducer |
|---|---|
| Material | Carbon Steel |
| Connection Type | Butt Weld |
| Configuration | Centered Pipe Size Transition |
| Primary Function | Connect Different Pipe Diameters |
| Centerline | Large and Small Ends Remain Concentric |
| Available Wall Options | Standard, Schedule 160, Extra Heavy, Double Extra Heavy |
| Material Specification | ASTM A/SA234 WPB through 24" |
| Dimensional Standards | ASME/ANSI B16.9, B16.11, and B16.28 through 24" |
| Dimensions Over 24" | MSS-SP-48 |
| Maximum Carbon Content | 0.25% |
| Manufacturing | ISO-Certified Facilities |
| Material Documentation | Mill Test Reports Available with Every Order |
Concentric Reducer Configuration
Large End
The larger butt weld end connects to the larger nominal pipe size in the piping system.
Centered Transition
The reducer narrows symmetrically around the pipe centerline to provide a uniform transition between pipe sizes.
Small End
The smaller butt weld end completes the transition to the reduced nominal pipe size.
Construction Details
Carbon steel weld concentric reducers are designed for installation between compatible butt weld pipe and piping components of different diameters. Welding both ends into the piping system creates a permanent transition without threaded or mechanical joints.
The concentric profile keeps the larger and smaller connections aligned on the same centerline, producing a symmetrical pipe-size transition.
Why Choose a Concentric Reducer?
Centered Pipe Size Transition
- Connects different nominal pipe sizes
- Keeps the large and small pipe centerlines aligned
- Provides a symmetrical reduction profile
- Useful where a centered transition is preferred
- Provides a compact pipe-size change within one fitting
Permanent Welded Connection
- Designed for compatible butt weld piping
- No threaded connection required
- Suitable for industrial and mechanical piping systems
- Available in multiple wall thickness options
- Supports fabricated piping assemblies
Concentric vs. Eccentric Reducers
Concentric Reducer
A concentric reducer transitions symmetrically between the larger and smaller pipe diameters, keeping both connections aligned on the same centerline.
Eccentric Reducer
An eccentric reducer uses an offset transition that allows one side of the piping transition to remain level, making it useful in certain horizontal piping layouts.
Typical Applications
Industrial & Mechanical Piping
- Industrial process piping
- Mechanical piping systems
- Plant utility piping
- Equipment connections
- Fabricated piping assemblies
General Pipe Size Transitions
- Distribution piping
- Commercial mechanical systems
- Vertical piping layouts
- Structural piping applications
- General carbon steel piping systems
Wall Thickness Options
Standard & Extra Heavy
Standard and Extra Heavy reducers are available for compatible piping systems requiring conventional or heavier-duty wall construction.
Schedule 160 & Double Extra Heavy
Schedule 160 and Double Extra Heavy options are available for compatible applications requiring substantially heavier wall construction.
Ask Willy: Need Pipe Size Help?
Use our common pipe diameters and wall thickness chart to confirm large-end size, small-end size, and wall thickness before ordering carbon steel weld concentric reducers. You can also review the weld reducer dimensional sheet below.
Standards & Documentation
ASTM Material Standard
Seamless butt weld fittings conform to ASTM A/SA234 WPB through 24".
Dimensional Standards
Weld fitting dimensions conform to ASME/ANSI B16.9, B16.11, and B16.28 through 24". Dimensions larger than 24" conform to MSS-SP-48.
Material Traceability
Mill Test Reports are available with every order, providing supporting material documentation for applicable project requirements.
Need More Carbon Steel Weld Fittings?
Browse our complete selection of carbon steel weld fittings, including concentric reducers, eccentric reducers, elbows, tees, laterals, caps, return bends, and other butt weld fittings.
Frequently Asked Questions
What is a carbon steel weld concentric reducer?
A concentric reducer is a butt weld fitting used to connect pipes of different diameters while keeping the larger and smaller connections aligned on the same centerline.
How is a concentric reducer different from an eccentric reducer?
A concentric reducer transitions symmetrically around the pipe centerline, while an eccentric reducer uses an offset profile that allows one side of the transition to remain level.
What type of connection does this fitting use?
This fitting uses butt weld connections and is welded to compatible carbon steel pipe or piping components.
What wall thickness options are available?
The supplied product information lists Standard, Schedule 160, Extra Heavy, and Double Extra Heavy options.
What material specification applies?
Seamless butt weld fittings conform to ASTM A/SA234 WPB through 24".
What dimensional standards apply?
The supplied information states that weld fitting dimensions conform to ASME/ANSI B16.9, B16.11, and B16.28 through 24", with fittings larger than 24" conforming to MSS-SP-48.
What is the maximum carbon content?
The supplied product information states that carbon content does not exceed 0.25% maximum.
Are Mill Test Reports available?
Yes. Mill Test Reports are available with every order according to the supplied product information.
What should I verify before ordering?
Confirm the large-end pipe size, small-end pipe size, required wall thickness, material requirements, and applicable piping-system specifications before ordering.
Important Ordering & Installation Notes
- Confirm both the large-end and small-end nominal pipe sizes before ordering.
- Confirm the required wall thickness: Standard, Schedule 160, Extra Heavy, or Double Extra Heavy.
- This fitting uses butt weld connections.
- Confirm that a concentric reducer is appropriate for the intended piping layout.
- Verify carbon steel compatibility with the intended piping service.
- Confirm applicable pressure, temperature, dimensional, and project requirements.
- Use qualified welding procedures and personnel as required by the applicable piping code or project specification.
- Inspect fitting ends and adjoining pipe before fit-up and welding.
- Confirm proper alignment before completing the welded connections.
- Mill Test Reports are available with every order.
- Refer to the dimensional PDF for fitting-specific measurements before fabrication.
