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Incoloy Pipe Fittings

Incoloy pipe fittings specification

What are Incoloy Pipe Fittings?

A worthy selection for industries exposed to corrosive environments is Incoloy, a sturdy material containing nickel, iron, and chromium. Incoloy pipe fittings also have molybdenum, titanium, and copper, while maintaining a total nickel content of less than 50 percent. It is a prime differentiator from Inconel, whose nickel percentage is much higher.

Alloy 825 fittings, a popular grade of this material, withstands oxidizing and reducing environments. Manufacturers can produce fittings to address varied piping requirements, for example, tees, a DIN 2.4858 reducer, elbows, etc. Their performance in aqueous media is fabulous.

incoloy 800 pipe fitting and alloy 825 elbow manufacturer in India


Specification of incoloy pipe fittings

Specifications Size Bending radius
ASTM B366/ ASME SB366 1/2" - 24" R = 1 D, 2D, 3 D, 5D, 6D, 8 D, 10D
Process Schedule Types
Push, forge, press, cast Schedule 5s - XXS Reducer, elbow, tee, cap, cross, stub end
Test Surface treatment End
  • 100% PMI test
  • Third party inspection
  • Intergranular corrosion
  • Hydrostatic
  • Flaring
  • Black painting
  • Anti-rust oil
  • Sand blast
  • Bevel end
  • Plain end
  • BW

We provide high quality incoloy 800 tee at the lowest price, check applications here

What are the key properties and advantages of Incoloy Pipe Fittings?

The outstanding corrosion resistance of Incoloy alloy 825 buttweld fittings is well-documented. They can tolerate sulfuric and phosphoric acids, even operating in phosphoric acid evaporators, and resist stress-corrosion cracking. Besides this, here are other noteworthy benefits:

  • Can handle temperatures up to 1000°F: an incoloy 800 elbow can operate in pressure vessels up to 800°F.
  • Shows resistance to pitting (development of cavities) and crevice corrosion
  • An Incoloy 800H stub end is easy to fabricate and work with

We recommend acquiring fittings from trusted vendors that follow tight tolerances and steep quality standards. an incoloy elbow can deliver long service duration when produced from premium raw materials and thoroughly tested for performance

Types of incoloy buttweld fittings


Incoloy 800 reducer

Incoloy 800 reducer

Incoloy 800 Pipe Fittings

Incoloy 800 Pipe Fittings

alloy 825 elbow

Alloy 825 elbow

Incoloy Pipe Cap

Incoloy Pipe Cap

Check dimension chart of DIN 2.4858 reducer, we provide custom sizes as per customer requirements

What are the common applications for Incoloy Pipe Fittings? Which industries use them most frequently?

The main clients of Incoloy 825 fittings are chemical processing industries, oil and gas plants, and pollution control units. They also work in nuclear fuel reprocessing, radioactive waste management, and marine applications like propeller shafts and exhaust systems. Customers can order these products in customized sizes and designs to meet their requirements, but ½ to 48 inches are typical.

Other applications of Incoloy 800 fitting include:

  • Hot vessels for seawater
  • Sulphuric acid piping
  • Heat exchangers
  • An Incoloy 825 tee can work in food processing industries
  • Muffles
  • Air pollution control
  • Furnace equipment

Chemical composition of alloy 825 elbow


Grade Si Cu Mn S C Ni Fe Ti Cr Al
800 1.00 max 0.75 max 1.50 max 0.015 max 0.10 max 30.00 – 35.00 39.50 min 0.15 – 0.60 19.00 – 23.00 0.15 – 0.60
825 0.5 max 1.50 – 3.00 1.00 max 0.03 max 0.05 max 38.00 – 46.00 22.00 min 0.06 – 1.20 19.50 – 23.50 0.02 max
800HT 1.00 max 0.75 max 1.50 max 0.015 max 0.06 – 0.10 30.00 – 35.00 39.50 min 0.15 – 0.60ᴬ 19.00 – 23.00 0.15 – 0.60ᴬ
800H 1.00 max 0.75 max 1.50 max 0.015 max 0.05 – 0.10 30.00 – 35.00 39.50 min 0.15 – 0.60 19.00 – 23.00 0.15 – 0.60
Incoloy 825 end cap manufacturer in India offer typical Manufacturing sizes and tolerances

Mechanical properties of alloy 800 reducer


Element Density Tensile Strength Melting Point Yield Strength (0.2%Offset) Elongation
825 8.14 g/cm3 Psi – 80,000 , MPa – 550 1400 °C (2550 °F) Psi – 32,000 , MPa – 220 30 %
800 / 800H / 800HT 7.94 g/cm3 Psi – 75,000 , MPa – 520 1385 °C (2525 °F) Psi – 30,000 , MPa – 205 30 %
Check chemical, mechanical and equivalent properties of alloy 825 buttweld fittings

Equivalent grade of 825 tee


TANDARD UNS WERKSTOFF NR. AFNOR BS EN GOST OR JIS
Incoloy 800 N08800 1.4876 Z8NC32-21 NA 15 X10NiCrAlTi32-20 ЭИ670 XH32T NCF 800
Incoloy 825 N08825 2.4858 NFE30C20DUM NA 16 NiCr21Mo ЭП703 XH38BT NCF 825
Incoloy 800HT N08811 1.4859 / 1.4876 NA 15(HT) X8NiCrAlTi32-21 ЭИ670 XH32T NCF 800HT
Incoloy 800H N08810 1.4958 / 1.4876 Z8NC33-21 NA 15(H) X5NiCrAlTi31-20 ЭИ670 XH32T NCF 800H

Pressure rating of incoloy buttweld fittings


Temperature ratings Pressure class
150 300
1/4 - 1 inches 1 1/4 - 2 inches 2 1/2 - 3 inches
(oF) (oC)
250 121 225 1575 1200 825
200 93 265 1785 1350 910
300 149 185 1360 1050 735
400 204 - 935 750 560
350 177 150 1150 900 650
450 232 - 725 600 475
550 288 - 300 300 300
-20 to 150 -29 to 66 300 2000 1500 1000
500 260 - 510 450 385

Applications of incoloy 825 end cap


  • → Petrochemical Industry
  • → Chemical Industry
  • → Oil and Gas Industry
  • → Energy Industry
  • → Power Plant Industry
  • → Pulp & Paper Indusry
  • → Pharmaceuticals Industry
  • → Aerospace Industry
  • → Food Processing Industry
  • → Refining Industry

Dimensions of incoloy fittings


Nominal fitting Size OD 45° Elbows 90° Elbows 180° Returns
(inch)   LR LR LR
  (inch) (mm) Center to face (inch) Radius (inch) Center to face (inch) Center to face (inch) Back to face (inch) Center to center (inch)
3/4 1.050 26.7 7/16   1 1/8 1 11/16 2 1/4
1/2 0.840 21.3 5/8   1 1/2 1 7/8 2
1 1.315 33.4 7/8   1 1 1/2 2 3/16 3
1 1/2 1.900 48.3 1 1/8 3 1 1/2 2 1/4 3 1/4 4 1/2
1 1/4 1.660 42.2 1   1 1/4 1 7/8 2 3/4 3 3/4
2 2.375 60.3 1 3/8 4 2 3 4 3/16 6
3 3.500 88.9 2 6 3 4 1/2 6 1/4 9
2 1/2 2.875 73.0 1 3/4 5 2 1/2 3 3/4 5 3/16 7 1/2
3 1/2 4.000 101.6 2 1/4 7 3 1/2 5 1/4 7 1/4 10 1/2
5 5.563 141.3 3 1/8 10 5 7 1/2 10 5/16 15
4 4.500 114.3 2 1/2 8 4 6 8 1/4 12
6 6.625 168.3 3 3/4 12 6 9 12 5/16 18
12 12.750 323.9 7 1/2 18 12 18 24 3/8 36
8 8.625 219.1 5 12 8 12 16 5/16 24
10 10.750 273.1 6 1/4 15 10 15 20 3/8 30

Manufacturing standard of Incoloy elbow


  • ANSI / ASME B16.9
  • ANSI / ASME B16.25
  • ANSI / ASME B16.11
  • MSS SP-95
  • MSS SP43
  • ASME B16.25
  • BS3799
  • ASME B16.28
  • ANSI / ASME B16.5
  • ISO 4144