Pipe Fittings Manufacturer in India
Kalpataru Piping Solution is an India-based Pipe Fittings manufacturer, stockist and exporter of high-precision pipe fittings engineered for critical industrial piping systems. From everyday elbows and tees to specialised reducing outlets and stub ends, every fitting we produce is manufactured under strict ISO 9001 and PED quality protocols, using raw materials sourced from certified mills. Our in house facilities are equipped to manufacture pipe fittings in Stainless Steel, Duplex Steel, Super Duplex Steel, Monel, Inconel and Copper-Nickel grades, size ranging from 1/2″ NB to 48″ NB in schedule 5 to schedule XXS.
What differentiates us? Every single piece is measured for dimensional accuracy against ASME B16.9, ASME B16.11, MSS-SP-43 and MSS-SP-79 prior to dispatch.Moreover, mill test certificates (MTC 3.1/3.2) are provided with each delivery. Our sales team, in coordination with the production team ensures that your consignment – be it a single sample fitting or a full container load due for export, is delivered on time, to the exact specifications mentioned in your PO and without any hassles, to your preferred destination be it India, Middle East, Africa, Europe or South East Asia.
- Pipe Fittings Product Overview
- Pipe Fittings Product List
- Materials & Grades We Manufacture
- Pipe Fittings Technical Specifications
- Pipe Fittings Equivalent Grade Chart
- Pipe Fittings Chemical Composition (%)
- Mechanical Properties of Pipe Fittings
- Pipe Fittings Dimension Chart
- Pipe Fittings Applications & Industries Served
- Buttweld vs Socket Weld vs Threaded Fittings
- Manufacturing Process & Quality Control
- Inspection & Testing Capabilities
- Certifications & Standards
- Cities We Supply & Countries We Export To
- Pipe Fittings Price List
- FAQs About Pipe Fittings
Pipe Fittings Product Overview
Kalpataru Piping Solution manufactures a complete range of pipe fittings designed to join, direct, reduce, branch or terminate piping runs safely under varying pressure and temperature conditions. Our core product families include:
Fitting Type | Function | Typical Standard |
|---|---|---|
Elbow (45° / 90° / 180°) | Changes direction of pipe flow | ASME B16.9 |
Equal / Reducing Tee | Creates a branch connection | ASME B16.9 |
Concentric / Eccentric Reducer | Connects pipes of different diameters | ASME B16.9 |
Stub End (Lap Joint) | Used with backing/lap joint flanges | MSS SP-43 |
End Cap | Seals the terminal end of a pipe run | ASME B16.9 |
Coupling (Full/Half) | Joins two pipe lengths in-line | MSS SP-97 |
Cross Fitting | Four-way branch connection | ASME B16.9 |
Pipe Nipple / Swage Nipple | Short connecting piece between fittings/valves | MSS SP-95 |
Union | Allows quick disconnection without cutting the line | MSS SP-83 |
Bushing / Plug | Reduces port size or closes an opening | ASME B16.11 |
Explore our full Pipe Fittings range, or view grade-specific product pages linked throughout this guide.
Pipe Fittings Product List
Materials & Grades We Manufacture
Material selection is the single biggest driver of a fitting’s service life. We stock and manufacture the following grade families (click any grade to view its dedicated specification page):
Material Family | Common Grades Supplied |
|---|---|
304 / 304L, 304H, 316 / 316L / 316Ti, 310 / 310S, 317 / 317L, 321 / 321H, 347 / 347H, 904L | |
Carbon & Alloy Steel | ASTM A105, WP5, WP9, WP11, WP12, WP22, WP91 |
Nickel 200 / 201, Monel 400 / K500, Inconel 600 / 601, Inconel 625, Incoloy 800, Incoloy 825 | |
High-Performance Alloys | Hastelloy C22 / C276, Alloy 20, SMO 254, Titanium Gr. 2 / Gr. 5 |
Copper-Nickel 90/10, Copper-Nickel 70/30, Brass, Bronze |
Pipe Fittings Technical Specifications
Specification | Details |
|---|---|
Applicable Standard | ASTM A403, ASTM A234, ASME B16.9, ASME B16.11, MSS SP-43, MSS SP-79, MSS SP-95, MSS SP-97 |
Connection Type | Buttweld (BW), Socket Weld (SW), Threaded (NPT/BSP), Seamless / Welded |
Pressure-Temperature Class | 150 LB, 300 LB, 600 LB, 1500 LB, 2500 LB, 2000#, 3000#, 6000#, 9000# |
Size Range | 1/2″ NB to 48″ NB |
Wall Thickness / Schedule | SCH 5S, 10S, 20, 30, STD, 40S, 60, XS, 80S, 100, 120, 140, 160, XXS |
Type of Fitting | Elbow, Tee, Reducer, Stub End, Cap, Coupling, Cross, Nipple, Union, Bushing |
Surface Finish | Pickled & Passivated, Polished, Black, Bright Annealed |
Test Certification | Mill Test Certificate as per EN 10204 3.1 / 3.2 |
Pipe Fittings Equivalent Grade Chart
ASTM Grade | Werkstoff Nr. | UNS | JIS | EN |
|---|---|---|---|---|
WP304 | 1.4301 | S30400 | SUS 304 | X5CrNi18-10 |
WP304L | 1.4306 / 1.4307 | S30403 | SUS 304L | X2CrNi18-9 |
WP316 | 1.4401 / 1.4436 | S31600 | SUS 316 | X5CrNiMo17-12-2 |
WP316L | 1.4404 / 1.4435 | S31603 | SUS 316L | X2CrNiMo17-12-2 |
WP321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 |
WP347 | 1.4550 | S34700 | SUS 347 | X6CrNiNb18-10 |
WP904L | 1.4539 | N08904 | SUS 904L | X1NiCrMoCu25-20-5 |
Pipe Fittings Chemical Composition (%)
Grade | C | Mn | Si | P | S | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|---|
304 | 0.08 max | 2 max | 1 max | 0.045 max | 0.03 max | 18-20 | 8-11 | – |
304L | 0.04-0.1 | 2 max | 1 max | 0.045 max | 0.03 max | 18-20 | 8-11 | – |
316 | 0.08 max | 2 max | 1 max | 0.045 max | 0.03 max | 16-18 | 11-14 | 2-3 |
316L | 0.035 max | 2 max | 1 max | 0.045 max | 0.03 max | 16-18 | 10-14 | 2-3 |
321 | 0.08 max | 2 max | 1 max | 0.045 max | 0.03 max | 17-19 | 9-12 | – |
904L | 0.02 max | 2 max | 1 max | 0.04 max | 0.03 max | 19-23 | 23-28 | – |
Mechanical Properties of Pipe Fittings
Grade | Tensile Strength (min) | Yield Strength (0.2% Offset, min) | Elongation |
|---|---|---|---|
304 / 304H | 515 MPa | 205 MPa | 28% |
304L | 485 MPa | 170 MPa | 28% |
316 / 316H | 515 MPa | 205 MPa | 28% |
316L | 485 MPa | 170 MPa | 28% |
321 / 321H | 515 MPa | 205 MPa | 28% |
904L | 490 MPa | 220 MPa | 28% |
Pipe Fittings Dimension Chart (Sample — Elbow, in mm)
NPS | O.D. at Bevel | Center-to-End (90° LR) |
|---|---|---|
1/2″ | 21.3 | 38 |
1″ | 33.4 | 38 |
2″ | 60.3 | 76 |
4″ | 114.3 | 152 |
8″ | 219.1 | 305 |
12″ | 323.8 | 457 |
Pipe Fittings Applications & Industries Served
- Oil & Gas — upstream, midstream and refining piping networks
- Power Generation — thermal, nuclear and renewable energy plants
- Chemical & Petrochemical Processing
- Pulp & Paper Manufacturing
- Sugar & Food Processing Plants
- Pharmaceutical & Bio-Process Piping
- Shipbuilding & Marine Engineering
- Water Treatment & Desalination Plants
Buttweld vs Socket Weld vs Threaded Fittings
Parameter | Buttweld (BW) | Socket Weld (SW) | Threaded (NPT/BSP) |
|---|---|---|---|
Size Range | 1/2″ to 48″ | 1/8″ to 4″ | 1/8″ to 4″ |
Pressure Class | Up to 2500 LB | Up to 9000# | Up to 9000# |
Joint Method | Welded, flush bore | Welded, socket insert | Screwed, no welding |
Best For | High pressure, large-bore piping | Small-bore, high-pressure lines | Low-pressure, maintenance-friendly lines |
Leak Risk | Lowest (fully fused joint) | Low | Moderate (thread sealant dependent) |
Manufacturing Process & Quality Control
Our production route follows a controlled sequence: raw material verification against mill certificates → hot/cold forming or forging → machining and dimensional shaping → heat treatment (annealing/normalising/quenching & tempering as per grade) → surface finishing (pickling, passivation, polishing) → final dimensional, visual and NDT inspection → packing and dispatch.
Inspection & Testing Capabilities
- Chemical composition (spectro) analysis
- Mechanical/tensile testing
- Metallographic and hardness testing
- Ultrasonic Testing (UT) and Radiography (RT)
- Penetrant Testing (PT) and Magnetic Particle Testing (MT)
- Hydrostatic pressure testing
Certifications & Standards
- ISO 9001:2015 — Quality Management System
- PED 2014/68/EU — Pressure Equipment Directive (European exports)
- ISO 14001 — Environmental Management System
- Compliance with ASTM, ASME, MSS, DIN, JIS and EN standards
- Third-Party Inspection support: SGS, Bureau Veritas, TUV, and client-nominated agencies
Cities We Supply & Countries We Export To
Domestic supply: Mumbai, Pune, Ahmedabad, Surat, Vadodara, Chennai, Bengaluru, Hyderabad, Kolkata, Jaipur, Indore, Nagpur, Rajkot and 40+ other industrial hubs across India.
Export markets: Saudi Arabia, UAE, Qatar, Oman, Kuwait, Bahrain, USA, Canada, UK, Germany, Netherlands, Italy, South Africa, Nigeria, Malaysia, Singapore, Sri Lanka, Bangladesh, Australia and Brazil.
Also stocked for export: Stainless Steel Flanges, Duplex Steel Flanges, Super Duplex Steel Flanges, Stainless Steel Round Bars and precision Shims. Read more on our Blog or learn about our facility on the About Us page.
Pipe Fittings: Frequently Asked Questions
Buttweld elbows, tees, reducers, caps and stub ends, and forged socket-weld and threaded fittings, in stainless (304, 316, 316Ti), nickel 200/201, Inconel, Monel, super duplex and other grades. Buttweld to ASTM A403, A234 and B366, socket-weld and threaded to ASME B16.11. If a type or grade is not listed, ask, because we hold more than the site shows.
Size and joint. Buttweld fittings are butt-welded end-to-end to the pipe and suit larger bore and higher-integrity welded lines, matching the pipe wall. Socket-weld fittings have a socket the pipe seats into and is fillet welded, which suits small-bore high-pressure lines where a full butt weld is impractical. The piping specification names which to use.
Match it to the pipe and the service. Stainless 304 and 316 cover general and corrosion work, nickel 200/201 suits caustic and high-purity service, Inconel handles high temperature, Monel suits hydrofluoric acid and seawater, and super duplex takes high-chloride duty. The fitting, pipe and flanges should share the same grade for a consistent joint.
Yes. A buttweld fitting must match the pipe wall thickness, the schedule, so the weld preparation lines up and the joint has consistent strength and bore. Socket-weld and threaded fittings match the small-bore class. Ordering fittings, pipe and flanges to matching grade and schedule is what keeps a welded line code-compliant.
Yes. Every order ships with an EN 10204 mill test certificate, heat-number traceable to the grade, with positive material identification, dimensional and NDE checks on buttweld fittings, and NACE documentation and third-party witness inspection available at order stage.
Get in Touch
Whether you need stainless pipe fittings, Super Duplex Steel Pipe Fittings, Inconel Pipe Fittings, or bespoke solutions in special alloys, Kalpataru Piping Solution is your trusted partner for quality piping products. Contact us today for technical support, product details, and a competitive quote.
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