Stainless Steel Pipe Fittings Manufacturers in India

Stainless Steel Fittings Manufacturers & Suppliers in India

Amardeep Steel Centre manufactures and supplies stainless steel pipe fittings for critical service environments, oil refineries, power plants, water treatment, LNG systems, and marine installations. Every fitting is precision-formed for leak-proof joints and rated to perform under sustained pressure, vibration, and thermal cycling.

Our ss pipe fittings are produced in SS 304, 316, 316L, 904L, and all major grades to ASME, ASTM, MSS, and DIN standards. Third-party inspections with BV, DNV, and SGS are available on request. With over 25 years of manufacturing experience and export presence across 40+ countries, Amardeep Steel Centre is a trusted source for stainless steel pipe fittings in industrial procurement.

What Are Stainless Steel Pipe Fittings?

Stainless steel pipe fittings are made to be precise components that either join, divert, branch, or end flow of a piping system. Elbows divert the flow direction, reducers vary the pipe diameter, tees form branch connections and couplings connect two sections of the pipe system — all of which ensures the integrity of the system in corrosive service where carbon steel would fail.

SS pipe fittings are broadly classified into four types by connection method: buttweld fittings (elbows, tees, reducers, caps), forged/socket weld fittings, threaded fittings, and compression fittings. Both types are optimally suited to particular pressure ratings and installations — visit our special pages on Stainless Steel Buttweld Fittings, Stainless Steel Forged Fittings and grade-specific.

Our stainless steel tube fittings are manufactured in SS 304, 304L, 316, 316L, 310, 321, 321H, 347, 904L and all standard grades giving you an extremely robust connection that is hygienic, corrosion-resistant, and capable of withstanding extreme pressures and temperatures. Applications span chemical plants, food processing, pharmaceuticals, marine, power generation, and cryogenic systems.

Complete Range of Stainless Steel Pipe Fittings

Browse all fitting categories. Each product group links to dedicated grade pages with full specifications, dimensions, and pricing.

Stainless Steel Forged Fittings

ASTM A182 · ANSI B16.11 · Class 3000# to 9000#

Stainless Steel Buttweld Fittings

Product Specifications: Stainless Steel Pipe Fittings

Full specification range for all ss fittings supplied by Amardeep Steel Centre.

Feature	Details
Product Type	Stainless Steel Pipe Fittings
Grades Available	SS 304, 304L, 316, 316L, 310, 321, 321H, 347, 347H, 904L, 317L, 310S, and others
Size Range	½″ NB to 48″ NB
Pressure Ratings	Class 150 to Class 2500
Wall Thickness / Schedule	SCH 5S, 10S, 40S, 80S, 160, XXS
End Connections	Threaded (NPT/BSP), Socket Weld, Buttweld, Flanged, Plain End
Surface Finish	Pickled, Passivated, Polished (Ra 0.8 to Ra 3.2)
Standards Met	ASME B16.9, B16.11, B16.28 · ASTM A182/A403 · MSS SP-43/83/97 · DIN 2605/2615 · BS 3799 · EN 10253
Testing Conducted	Hydrotest, PMI, NDT (RT/UT), IGC, Hardness, Visual & Dimensional Inspections
Weight Range	Available on request per fitting type and schedule
Documentation	EN 10204 3.1 MTC standard; 3.2 (TPI-witnessed) on request

Need weight data for your BOM? Contact our technical team for schedule-specific weight charts.

Types of Stainless Steel Pipe Fittings Available

We stock and manufacture all standard fitting types across buttweld, forged, socket weld, threaded, and olet categories.

Stainless Steel Buttweld Fittings

ASTM A403 · ASME B16.9 · ½″ to 48″ NB

Beveled ends, welded flush with the pipe. Used for 2″ NB and above in high-pressure, full-bore service. Radiographic inspection of the joint is possible — preferred in critical piping.

90° & 45° Long Radius / Short Radius Elbows
Equal & Reducing Tees
Concentric & Eccentric Reducers
End Caps & Stub Ends
Return Bends

Stainless Steel Socket Weld Fittings

ASTM A182 · ASME B16.11 · Class 3000# to 9000#

Insert-and-weld design for small bore piping (½″ to 2″ NB). Forged from bar stock for high pressure service. Fillet-welded joint — no bevel preparation required.

SW Elbows (45° / 90°)
SW Equal & Unequal Tees
SW Half & Full Couplings
SW Reducing Couplings & Caps
SW Crosses & Unions

Stainless Steel Threaded Fittings

ASTM A182 · ASME B16.11 · NPT / BSP

NPT or BSP threaded connections for low-pressure non-critical services and instrumentation lines. Apply PTFE tape or anaerobic sealant per ASME B1.20.1 for pressure service.

Threaded Elbows, Tees, Crosses
Pipe Nipples (close, hex, barrel)
Full & Half Couplings
Plugs, Bushings, Caps
Street Elbows

Stainless Steel Olet Fittings

MSS SP-97 · All Grades Available

Branch connection fittings welded directly onto the run pipe. Eliminate the need for a reinforcement pad and maintain full flow-bore in the header pipe.

Weldolet
Sockolet
Threadolet
Elbolet
Nipolet & Latrolet

Quality Certifications & Standards of Stainless Steel Fittings

Every steel fitting is manufactured and tested to internationally recognised quality standards.

Certification / Standard	Assurance Provided
ASME B16.9 / B16.11	Dimensional accuracy, tolerances, and pressure ratings for buttweld and forged fittings
ASTM A182 / A403	Material grade, chemical composition, mechanical properties, and heat treatment for forged and wrought fittings
ISO 9001:2015	Certified quality management system — covers design, manufacture, testing, and dispatch
PED 2014/68/EU	Approved for use in EU pressure equipment applications
NACE MR0175 / ISO 15156	Corrosion-resistant grades qualified for sour service (H₂S-containing) environments
IBR (Indian Boiler Regulations)	IBR-certified fittings available for Indian power and process plant projects — mandatory for boiler and pressure vessel piping
EN 10204 3.1 / 3.2	Mill test certificates standard with all deliveries; 3.2 (TPI-witnessed by BV, DNV, SGS, Lloyds, Intertek) on request

Stainless Steel Composition (Typical for SS 304 / 316)

Element	Typical %	Function
Carbon (C)	≤ 0.08	Improves weldability
Chromium (Cr)	18–20	Enhances corrosion resistance
Nickel (Ni)	8–14	Adds toughness and flexibility
Molybdenum (Mo)	0–3.0	Boosts pitting resistance (key in 316)
Iron (Fe)	Balance	Base structure for strength

Mechanical Properties Of Stainless Steel Fittings

Property	Value	Benefit
Tensile Strength	485–620 MPa	Resists pulling and stretching
Yield Strength	≥ 205 MPa	Maintains shape under pressure
Elongation	≥ 30%	Flexibility under load
Hardness	≤ 200 HB	Durable without brittleness
Temperature Range	−196°C to +870°C	Extreme heat and cold service

Note: Values above are indicative for SS 304/316. Grade-specific mechanical and chemical data sheets for 316L, 321, 321H, 347, 904L, and duplex grades are available on request. Contact our technical team for grade-specific MTCs.

Applicable Standards for SS Pipe Fittings

All Amardeep Steel fittings are manufactured and tested to internationally recognised standards.

Standard	Applies To	Scope
ASTM A182 / ASME SA182	Forged Fittings (SW, Threaded)	Material grades, mechanical properties, chemical composition for forged products
ASTM A403 / ASME SA403	Buttweld Fittings	Wrought austenitic SS piping fittings — grades, testing, heat treatment
ASME B16.9	Buttweld Fittings	Factory-made wrought buttwelding fittings — dimensions, tolerances, pressure ratings
ASME B16.11	Forged Fittings (SW, Threaded)	Ratings, dimensions, tolerances, marking for socket weld & threaded fittings
ASME B16.28	Short Radius Elbows & Returns	Wrought steel short radius elbow and return bends
MSS SP-43	Buttweld Fittings (Low Pressure)	Wrought & fabricated butt-welding fittings for low pressure, corrosion-resistant applications
MSS SP-83	Socket Weld Unions	Class 3000 and 6000 pipe unions, SW and threaded
MSS SP-97	Olet Fittings	Integrally reinforced forged branch outlet fittings — weldolet, sockolet, threadolet
BS 3799	Forged Fittings	Steel pipe fittings, screwed and socket-welding for petroleum industry
DIN 2605 / 2615 / 2616	Buttweld Fittings	European standard for buttweld elbows, tees, and reducers

Stainless Steel Grades Available — Full Range

We manufacture and stock fittings in over 20 stainless steel grades. Each grade is optimised for specific temperature, corrosion, and pressure requirements.

Why Global Buyers Choose Amardeep Steel

Over 25 years of manufacturing excellence, backed by rigorous quality systems and a track record of on-time delivery.

Extensive inventory in all major grades: 304, 316, 316L, 321, 904L. Standard stocked items dispatched within 2–3 working days. No MOQ for stocked items — suitable for MRO, spot purchase, and project lots.
Full documentation: EN 10204/3.1 MTC, PMI report, radiography, IGC test, hydrostatic report, and heat treatment chart — all standard. 3.2 TPI-witnessed certificates on request. IBR certificates available.
Third-party inspection: We welcome BV, TÜV, SGS, Lloyds, DNV, and Intertek witness inspections on request. All inspections conducted at our Mumbai facility before dispatch.
Custom manufacturing: Custom manufacturing to client drawings and specifications — buttweld, forged, socket weld, and threaded fittings in non-standard grades, sizes, or schedules. OEM supply available.
Global export: Export to 40+ countries with full compliance for EU (PED), US (ASME/ASTM), and Gulf (ARAMCO-accepted grades) projects. Export packing in wooden crates, RCMC certification available.
Technical support: Grade selection guidance, material equivalence charts, and dimensional consultation by our in-house engineering team. Respond to RFQs within 4 working hours.

Industries We Serve for Stainless Steel Fittings

Our stainless steel pipe fittings are trusted across critical process industries globally.

🛢 Oil & Gas

⚗ Petrochemical & Refineries

⚡ Power Generation

💧 Water & Waste Treatment

🍔 Food & Beverage

💊 Pharmaceutical & Biotech

⚓ Marine & Shipbuilding

❄ LNG & Cryogenic Systems

☢ Nuclear & Defence

🏗 EPC & Construction

Need SS Pipe Fittings for Your Industry?

Our technical team stocks fittings for all major process industries. Share your specification, grade, size, schedule, quantity — and we will respond within 4 working hours with pricing and availability.

Your Trusted Stainless Steel Pipe Fittings Manufacturer in India

Amardeep Steel Centre has been a trusted source of stainless steel pipe fittings for EPC contractors, MRO buyers, and project procurement teams across India and internationally for over 25 years. We maintain extensive ready stock of SS 304 and SS 316 pipe fittings alongside all other grades, and we offer custom manufacturing to client drawings and specifications.

As one of India’s leading manufacturers of ss fittings, our Mumbai facility covers the complete production chain — forging, machining, testing, and dispatch — under one roof. No intermediaries means direct factory pricing. Third-party inspection by BV, DNV, SGS, and Lloyds is available. For urgent requirements, we offer rapid dispatch within 2–3 working days on standard stocked items.

All fittings are packed in wooden corrugated boxes with plastic and bubble-wrap protection; end caps applied to pipe ends on request. Full documentation — MTC, COC, IBR certificate, PMI report — is included with every consignment. We supply to 40+ countries across Asia, Middle East, Europe, and the Americas.

Frequently Asked Questions - Stainless Steel Fittings

What are stainless steel pipe fittings used for?

Stainless steel pipe fittings connect, redirect, or terminate flow in industrial piping systems. They are used in oil & gas, chemical plants, food processing, pharmaceuticals, marine installations, and power generation — anywhere corrosion resistance, hygiene, and pressure integrity are required. Stainless steel is specified over carbon steel where process fluids are corrosive, hygienic standards apply, or operating temperatures exceed carbon steel limits.

How much pressure can stainless steel fittings hold?

Stainless steel pipe fittings are rated from Class 150 to Class 2500, equivalent to approximately 285 psi to 6,170 psi at 100°F for 316L grade, depending on size, schedule, and end connection type per ASME B16.11 (forged) and B16.9 (buttweld). Higher pressure ratings are available in Class 3000#, 6000#, and 9000# for forged socket weld and threaded fittings.

How do you connect stainless steel pipe fittings?

The connection method depends on fitting type and service conditions. Buttweld fittings are bevel-welded flush with the pipe — used for 2″ NB and larger in high-pressure service. Socket weld fittings insert the pipe into a recessed bore and are fillet-welded — preferred for ½″ to 2″ NB. Threaded fittings are screwed onto pipe ends — used for low-pressure instrument lines. Compression fittings use a ferrule to create a mechanical seal without welding.

How can you tell if a fitting is stainless steel?

Stainless steel fittings have a bright silver-grey finish and resist rust formation. Austenitic grades (304, 316) are non-magnetic — a magnet will not adhere strongly, unlike carbon steel. The fitting will be stamped with grade designation (e.g., ‘CF8M’ for 316, ‘CF8’ for 304) and heat/lot number per ASME marking requirements. A PMI (Positive Material Identification) test using XRF spectrometry provides definitive grade confirmation.

What is the difference between buttweld and socket weld stainless steel fittings?

Buttweld fittings (ASME B16.9) are beveled at the pipe end and welded flush, creating a full-penetration butt weld joint — used for 2″ NB and larger in high-pressure, critical service. The joint can be radiographically inspected. Socket weld fittings (ASME B16.11) have a recessed bore into which the pipe is inserted and fillet-welded — preferred for ½″ to 2″ NB. Buttweld fittings are rated higher pressure and are specified in critical and large-bore systems; socket weld fittings suit small-bore high-pressure service where radiographic inspection of the joint is not required.

Which stainless steel grade should I use for seawater service?

SS 316L is the minimum recommended grade for seawater and marine environments. Its molybdenum content (2–3%) significantly improves resistance to chloride pitting and crevice corrosion compared to 304. For highly corrosive offshore, subsea, and desalination applications, 904L (UNS N08904) or Super Duplex grades (S32750/S32760) are specified. Our technical team can advise on grade selection based on your chloride concentration, temperature, and flow conditions.