Socket Weld Reducer Fittings Manufacturer in India

Socket Weld Reducer Fittings Manufacturer in India

Sachiya Steel International is a leading Socket Weld Reducer Fittings Manufacturer in India, offering forged pipe fittings that change pipe size in socket weld piping systems. Established in 2005, we have 20+ years of experience in supplying socket weld reducers in carbon steel, stainless steel, alloy steel, duplex steel and nickel alloys. Our range includes reducer inserts, reducing couplings and socket weld swage nipples, manufactured to match the sizes and classes on your project drawings.

We supply socket weld reducer fittings in sizes from 1/8″ to 4″, with classes and wall thicknesses to suit different pressure requirements. Material options include ASTM A105, A350 LF2, A182 F304/F304L, F316/F316L and duplex grades, subject to availability. As an ISO-certified, TÜV-approved and MSME-registered company, we can manufacture and export up to 100 tonnes per month, serving customers across 85+ countries with inspection and material documentation available as required.

What Are Socket Weld Reducer Fittings?

Socket weld reducer fittings are forged pipe fittings that connect pipes of different sizes in socket weld piping. The fitting has a socket, which is a recess that accepts the end of a pipe, and a fillet weld around the outside of the socket makes the joint. The most common form is the reducer insert, which has a plain shank that fits into the socket of a larger fitting and a socket on the other end for a smaller pipe.

These fittings are used mainly in small-bore, high-pressure piping. They are manufactured to applicable standards such as MSS SP-79 for reducer inserts and ASME B16.11 for the socket weld fittings they connect to. The required class, material grade and wall thickness depend on the pressure, temperature and fluid in the piping system.

Socket Weld Reducer Fittings
Socket Weld Reducer Fittings
Socket Weld Reducer Fittings
Socket Weld Reducer Fittings
Socket Weld Reducer Fittings
Socket Weld Reducer Fittings
Manufacturer & Exporter

Socket Weld Reducer Fittings

✓ Industrial Grade
✓ Quality Assured
✓ Global Supply

High-quality socket weld reducer fittings are available in stainless steel, carbon steel, alloy steel, duplex and nickel alloys, in various sizes and pressure ratings. Offered in grades such as SS 304, 316, ASTM A234 WPB, Duplex 2205 and Inconel 625, these fittings suit high-pressure piping systems across oil and gas, chemical and power industries.

Product Highlights
Butt Weld & Forged Fittings
Multiple Material Grades
Wide Range of Fitting Types
Standard & Custom Sizes
ASTM, ASME & MSS Standards
Worldwide Export
Speak with our sales team for pricing & specifications.

Socket Weld Reducer Fittings Types We Supply

As a socket weld reducer fittings manufacturer, we offer different designs, pressure classes, and material options for small-bore industrial piping systems. Our range supports pipe connections where secure welding, suitable dimensions, and material compatibility are important.

  • Socket Weld Reducer Inserts: Designed to connect pipes of different sizes using a compatible socket weld fitting.
  • Socket Weld Reducing Couplings: Join two different pipe sizes in a straight line through socket connections at both ends.
  • Socket Weld Concentric Swage Nipples: Connect different pipe diameters along the same centreline.
  • Socket Weld Eccentric Swage Nipples: Feature an offset design that keeps one side level for suitable horizontal piping layouts.
  • Class 3000 Socket Weld Reducers: Used in piping systems designed for Class 3000 fittings, subject to the applicable pipe schedule and specifications.
  • Class 6000 Socket Weld Reducers: Suitable for piping systems requiring Class 6000 pressure-class fittings.
  • Stainless Steel Socket Weld Reducers: Available in grades such as F304, F304L, F316, and F316L for applications requiring corrosion resistance.
  • Alloy Steel and Low-Temperature Options: Grades such as F11, F22, and LF2 are used for specific temperature and operating conditions.
  • Duplex and Super Duplex Reducers: Suitable for selected applications requiring high strength and resistance to corrosion, including offshore and seawater systems.
  • Custom Socket Weld Reducers: Manufactured to specified dimensions, end connections, and material requirements, subject to design feasibility.

We supply socket weld reducer fittings based on the required pipe sizes, pressure class, material grade, and applicable standards for each project.

Why Choose Socket Weld Reducer Fittings?

Socket weld reducer fittings are a practical choice for small-bore piping systems that need strong, compact connections between pipes of different sizes. Their socket design allows the pipe to fit into the fitting before welding, making them suitable for applications where space, connection strength, and installation requirements are important.

  • Secure Welded Connections: Provide permanent joints when installed and welded according to the applicable procedures.
  • Compact Design: Fit well in small-bore piping layouts where space is limited.
  • Different Pipe Sizes: Connect pipes of different diameters within a compatible piping system.
  • Pressure Class Options: Available in classes such as 3000 and 6000, depending on the fitting type and applicable specifications.
  • Material Flexibility: Available in stainless steel, carbon steel, alloy steel, duplex steel, and other specified materials.
  • Suitable for Industrial Applications: Used in oil and gas, chemical processing, power generation, and other industrial piping systems.

Choosing the right socket weld reducer depends on pipe diameter, pressure class, material compatibility, operating temperature, and the applicable piping standard. Correct fitting selection and proper welding help support safe, reliable connections throughout the system.

Our Reducers Range

Types of Reducers Fittings

Explore our range of industrial reducer fittings, including concentric reducers, eccentric reducers, swage reducers, threaded reducers, socket weld reducers and butt weld reducers for diverse piping applications.

6+ Reducer Categories

Get Certified Socket Weld Reducer Fittings at Competitive Factory Prices

Socket Weld Reducer Fittings Specifications | MSS SP-79 Reducer Insert Supplier

Socket Weld Reducer Fittings Specifications

Property Specification
Product Name Socket Weld Reducer Fittings
Types Reducer insert, reducing coupling, concentric and eccentric swage nipple
Size Range 1/8" to 4" NB (Class 3000), 1/8" to 3" NB (Class 6000) for reducer inserts
Pressure Class 3000#, 6000#
Pipe Correlation Class 3000 with Schedule 80 / XS pipe, Class 6000 with Schedule 160 pipe
Materials Carbon steel, low temperature steel, alloy steel, stainless steel, duplex, super duplex, nickel alloys
Dimension Standards MSS SP-79 (reducer inserts), ASME B16.11, MSS SP-95 (swage nipples)
Material Standards ASTM A105, A182, A350
End Type Socket weld, plain end
Construction Forged and CNC machined
Surface Finish Black, oil coated, pickled, polished
Heat Treatment Normalising, solution annealing
Testing PMI, hardness, dimensional, hydrostatic
Certification EN 10204 3.1, 3.2 on request
How to Order Size pair, type, class, grade and standard (for example: Socket Weld Reducer Insert 3/4" × 1/2", Class 3000, A105, MSS SP-79)
Custom Work Special size pairs, lengths and grades

Socket Weld Reducer Fittings Chemical Composition

Values are in %, maximum unless a range is shown.

Grade C Mn Si P S Cr Ni Mo
A105 0.35 0.60–1.05 0.10–0.35 0.035 0.040 0.30 0.40 0.12
A350 LF2 0.30 0.60–1.35 0.15–0.30 0.035 0.040 0.30 0.40 0.12
A182 F304 0.08 2.00 1.00 0.045 0.030 18.0–20.0 8.0–11.0 –
A182 F304L 0.030 2.00 1.00 0.045 0.030 18.0–20.0 8.0–13.0 –
A182 F316 0.08 2.00 1.00 0.045 0.030 16.0–18.0 10.0–14.0 2.0–3.0
A182 F316L 0.030 2.00 1.00 0.045 0.030 16.0–18.0 10.0–15.0 2.0–3.0
A182 F51 (UNS S31803) 0.030 2.00 1.00 0.030 0.020 21.0–23.0 4.5–6.5 2.5–3.5

A105 also carries up to 0.40% copper and 0.05% vanadium. Duplex F51 carries 0.08–0.20% nitrogen.

Socket Weld Reducer Fittings Mechanical Properties

Grade Tensile Strength (MPa) Yield Strength (MPa) Elongation (%)
A105 485 min 250 min 22 min
A350 LF2 Class 1 485–655 250 min 22 min
A182 F304 / F316 515 min 205 min 30 min
A182 F304L / F316L 485 min 170 min 30 min
A182 F51 620 min 450 min 25 min

Socket Weld Reducer Fittings Size Chart

Large × Small Common Type Where This Socket Weld Reducer Goes
3/8" × 1/4" Reducer insert Gauge and instrument connections
1/2" × 3/8" Reducer insert Sample points and small valves
1/2" × 1/4" Reducer insert Pressure gauge and transmitter lines
3/4" × 1/2" Reducer insert Pump seal flush and drain lines
3/4" × 3/8" Reducer insert Instrument air and dosing lines
1" × 1/2" Reducing coupling Skid piping and utility lines
1" × 1/4" Reducer insert Vent and sample connections
1 1/4" × 1" Reducer insert Cooling water and fuel lines
1 1/4" × 3/4" Reducer insert Boiler auxiliary and drain lines
1 1/2" × 1" Swage nipple Valve and equipment tie-ins
2" × 1 1/2" Reducer insert Process branch connections
2" × 1 1/4" Reducer insert Pump suction and discharge connections

Socket Weld Reducer Fittings Dimension Chart (MSS SP-79)

These values apply to reducer inserts. Wall (C) is the minimum wall under the smaller socket, socket depth is the minimum depth of the socket, socket diameter is the bore that accepts the smaller pipe, and shank diameter is the outside diameter of the plain end that fits into the larger socket. All dimensions are in mm.

Size Pair Wall Class 3000 (C) Wall Class 6000 (C) Socket Depth Socket Diameter Shank Diameter
3/8" × 1/4" 3.78 4.60 10 14.35 17.15
1/2" × 3/8" 4.01 5.03 10 17.78 21.34
1/2" × 1/4" 3.78 4.60 10 14.35 21.34
3/4" × 1/2" 4.67 5.97 10 21.97 26.67
3/4" × 3/8" 4.01 5.03 10 17.78 26.67
3/4" × 1/4" 3.78 4.60 10 14.35 26.67
1" × 1/4" 3.78 4.60 10 14.35 33.40
1 1/4" × 1" 5.69 7.92 13 34.04 42.16
1 1/4" × 3/4" 4.90 6.96 13 27.31 42.16
2" × 1 1/2" 6.35 8.90 13 48.90 60.32
2" × 1 1/4" 6.07 7.92 13 42.80 60.32

For other size pairs, we cut the socket weld reducer to the MSS SP-79 table or to your drawing. Class 3000 reducer inserts cover sizes from 1/8" to 4", and Class 6000 reducer inserts cover sizes from 1/8" to 3".

Socket Weld Reducer Fittings Grades We Supply

Different industrial applications require materials that match their operating pressure, temperature, and corrosion conditions. As a reliable Socket Weld Reducer Fittings Supplier, we offer a range of forged steel and specialty alloy materials to meet diverse piping requirements.

  • Carbon Steel: ASTM A105 is widely used in oil, gas, steam, air, and water piping systems.
  • Low-Temperature Carbon Steel: ASTM A350 LF2 is suitable for applications requiring toughness at low operating temperatures.
  • Alloy Steel: ASTM A182 F11, F22, and F91 are used in high-temperature applications such as boilers, refineries, and power plants.
  • Stainless Steel: ASTM A182 F304, F304L, F316, F316L, F321, and F347 offer corrosion resistance for process piping and chemical applications.
  • Duplex and Super Duplex Steel: ASTM A182 F51, F53, and F55 are used in demanding environments where strength and resistance to corrosion are important, including selected seawater and offshore applications.
  • Nickel Alloys: Inconel, Monel, and Hastelloy grades are available for specialized services involving aggressive chemicals, elevated temperatures, or severe corrosion conditions.

We supply socket weld reducer fittings according to the required material specifications and project requirements. Grade selection depends on the process fluid, design conditions, and compatibility with the connected piping system.

Socket Weld Reducer Fittings Standards and Certifications

Our socket weld reducer fittings are supplied according to the applicable dimensional, material, and pressure-class requirements of industrial piping systems. Depending on the fitting type, relevant standards may include ASME B16.11 for forged socket-weld fittings, ASTM A105 for carbon steel forgings, ASTM A182 for alloy and stainless steel forgings, and ASTM A350 LF2 for low-temperature carbon steel applications. Pressure classes and dimensions are selected to match the required design specifications and connected components.

As an experienced Socket Weld Reducer Fittings Supplier in India, we support customer quality requirements with material traceability and inspection documentation. Available documents may include EN 10204 3.1 Material Test Certificates, chemical composition reports, mechanical test results, and dimensional inspection records. Our management system certifications include ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018. Additional inspection arrangements and EN 10204 3.2 certification can be coordinated when specified in the purchase order, helping customers meet their project documentation requirements.

Socket Weld Reducer Fittings Applications

  • Instrumentation and Control: Socket weld reducer fittings connect small-bore impulse and sample lines to gauges, transmitters and valves.
  • Oil and Gas Skids: Skid builders reduce small-bore process, vent and drain lines on wellhead and metering packages.
  • Power Plants and Boilers: Alloy steel socket weld reducers connect steam sampling and auxiliary lines at high temperature.
  • Chemical Processing: Stainless steel 316L socket weld reducers join dosing, sample and transfer lines of different sizes.
  • Refineries and Petrochemical Plants: Forged reducer inserts fit into socket weld valves and fittings on high-pressure small-bore lines.
  • Pump and Compressor Connections: Fitters match pipe sizes to equipment ports on pumps, compressors and seal flush lines.
  • Hydraulic Systems: Socket weld reducers adapt pipe to cylinders and manifolds where a welded joint is preferred over a threaded one.
  • Marine and Offshore: Shipyards fit socket weld reducers on engine room, deck and seawater service piping, and many projects source them from a socket weld reducer fittings supplier in India like us.

Socket Weld Reducer Fittings Manufacturing Capacity and Export Capability

Our manufacturing facility in Vasai, near Mumbai, has the capacity to produce up to 100 tonnes of socket weld reducer fittings per month. We manufacture forged socket weld reducers from 1/8" to 4" in carbon steel, stainless steel, alloy steel, duplex and other grades. With forging, heat treatment and machining handled at one facility, we maintain better control over production and can accommodate different sizes, classes and material grades in the same order.

We also have an export capacity of up to 100 tonnes per month and handle shipments ranging from sample quantities to full container loads. As a socket weld reducer fittings supplier in India, we arrange shipments through Nhava Sheva (JNPT) and Mundra ports and manage export documentation in-house. Our products reach customers in 85+ countries, with a focus on proper packaging, smooth customs clearance and timely delivery.

Why Choose Us as Your Socket Weld Reducer Fittings Manufacturer in India?

You should choose us as your socket weld reducer fittings manufacturer in India because we combine over 20+ years of industry experience with in-house manufacturing, strict quality control, and reliable delivery. We understand the importance of supplying fittings that meet your project specifications, material requirements, and applicable industry standards.

  • 20+ Years of Experience: We bring extensive experience in industrial steel products and piping solutions.
  • Wide Range of Materials: We manufacture socket weld reducer fittings in carbon steel, stainless steel, alloy steel, low-temperature steel, duplex, super duplex, and nickel alloys.
  • Quality Manufacturing: Our products are manufactured in accordance with applicable standards, including MSS SP-79, ASME B16.11, and MSS SP-95, as relevant to each product.
  • In-House Production: Our manufacturing capabilities help us maintain quality control and manage production schedules efficiently.
  • Global Supply Network: With a monthly production and export capacity of up to 100 tonnes, we serve customers in more than 85+ countries.
  • Certified Quality Systems: Our ISO 9001:2015 and ISO 14001:2015 certifications, TÜV approval, and MSME registration demonstrate our commitment to quality and responsible manufacturing.
  • Inspection and Documentation: We provide material test certificates and inspection reports as required to support quality verification and project documentation.
  • Competitive Pricing and Timely Delivery: We focus on cost-effective solutions, clear communication, and deliveries within agreed schedules.

By choosing us, you gain a manufacturing partner committed to product quality, technical requirements, and dependable service. Whether you need standard socket weld reducer fittings or specialized material grades, we work to provide reliable solutions that support your industrial piping projects.

Countries We Export To

We export socket weld reducer fittings to 85+ countries, serving industries such as oil and gas, power plants, process skids, and shipyards.

  • North America: USA, Canada, Mexico
  • Europe: UK, Germany, France, Italy, Netherlands, Spain
  • Middle East: UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain
  • Asia-Pacific: Singapore, Malaysia, Indonesia, Thailand, Vietnam, Australia
  • Africa: South Africa, Nigeria, Egypt, Kenya
  • South America: Brazil, Chile, Peru

We provide EN 10204 3.1 material test certificates, with 3.2 certification and third-party inspections available on request. We also handle export packaging and shipping documents to ensure smooth deliveries worldwide.