Inconel 625 Compressions Fittings Supplier

Inconel 625 Tube Fittings  are generally considered to be a superalloy. High Pressure Inconel 625 Compression Fittings are of great tensile strength with excellent resistance to corrosion at high temperatures and are one of the most reliable options in the harsh conditions of the industry. Inconel 625 Din 2.4856 Compression Fittings are made to maintain high levels of protection against high stress environment over a wide range of temperature over which it is used.

At Kalpataru Piping, we supply the entire range of Alloy 625 UNS N06625 Bulkhead Fittings and Inconel 625 UNS N06625 Imperial Fittings which are designed to work effectively in both submerged and exposed situations in extreme atmospheric conditions. To explore our complete range of corrosion-resistant piping solutions, browse our Inconel 625 Pipes & Tubes and Inconel 625 Pipe Fittings. For flange requirements in the same alloy, visit our dedicated Inconel 625 Flanges page.

Inconel 625 Fittings Specifications

Alloy 625 Flareless Fitting Standard Sizes

  • Sizes in mm: 3 to 50mm
  • Sizes in inch: 1/8″ to 2″
  • Custom Size Available

Inconel Alloy 625 High Pressure Ends

  • Welding
  • Threaded
  • JIC

Instrumentation Tube Fittings Thread

  • BSPP
  • BSPT
  • NPT

Werkstoff 2.4856 JIC Fittings Testing

  • Hydrostatic testing
  • Repeat assembly test
  • Burst and Impulse test

Inconel 625 Tube Fittings Pressure

  • 1000, 3000 Psi
  • 6000 Psi
  • 10000 Psi

Flareless Fitting Physical Properties

  • Melting Point: 1290-1350°C
  • Density: 8.44 g/cm³
  • Temperature Range: 2000°F (1093°C)

Nickel 625 Flare Fittings Standards

ASTM: B564 | ASME: SB 564
UNS: N06625 | WNR: 2.4856

Ferrule Fittings Origin

  • Japanese
  • Indian, Korean
  • European, American

Pneumatic Standard Configurations

  • Tube Closure / Female Connector
  • Tube to Male / Tube to Tube
  • Ferrule Set, Weld Connector

Inconel 2.4856 Hydraulic Fittings

  • Cross, Elbow, Tee
  • Cap, Plug

Documentation & Reports

  • MTC / 100% Radiography
  • Third Party Inspection
  • NABL Approved Lab Reports

Adapter Fittings Equivalents

HOKE, PARKER, SWAGELOK, DK-LOK

Twin Ferrule Applications

  • Subsea exploration
  • Semiconductor industries
  • Natural gas drilling
  • Alternative fuels

Single Ferrule Packaging

  • Bubble Wrap / Plastic Bags
  • Anti-tarnish Paper
  • Plastic Wrap

Available Types of Inconel Alloy 625 Compression Tube Fittings

Inconel 625 Tube to Male Pipe Thread

Inconel 625 Tube to Male Pipe Thread

Inconel 625 UNS N06625 Weld Fitting

Inconel 625 UNS N06625 Weld Fitting

Inconel Alloy 625 Tube to Tube

Inconel Alloy 625 Tube to Tube

Alloy 625 Tube to Female Pipe Thread

Alloy 625 Tube to Female Pipe Thread

Alloy 625 UNS N06625 Port Connector

Alloy 625 UNS N06625 Port Connector

ASME SB564 UNS N06625 Tube Ends

ASME SB564 UNS N06625 Tube Ends

Ready Stock of Inconel 625 (UNS N06625) Socket Buttweld Pipe Fittings

UNS N06625 Inconel 625 Full Coupling

UNS N06625 Inconel 625 Full Coupling

UNS N06625 Inconel 625 Pipe Cross

UNS N06625 Inconel 625 Pipe Cross

UNS N06625 Inconel 625 Pipe Tee

UNS N06625 Inconel 625 Pipe Tee

N06625 Inconel 625 90 Degree Elbow

N06625 Inconel 625 90 Degree Elbow

UNS N06625 Inconel 625 Eccentric Reducer

UNS N06625 Inconel 625 Eccentric Reducer

UNS N06625 Inconel 625 Forged Union

UNS N06625 Inconel 625 Forged Union

Inconel 625 Compression Fittings Chemical Composition

Element Minimum (%) Maximum (%)
Nickel (Ni) 58.0 min Balance
Chromium (Cr) 20.0 23.0
Molybdenum (Mo) 8.0 10.0
Niobium and Tantalum (Nb + Ta) 3.15 4.15
Iron (Fe) N/A 5.0
Carbon (C) N/A 0.10
Manganese (Mn) N/A 0.50
Silicon (Si) N/A 0.50
Phosphorus (P) N/A 0.015
Sulfur (S) N/A 0.015
Aluminum (Al) N/A 0.40
Titanium (Ti) N/A 0.40
Cobalt (Co) N/A 1.0

Inconel 625 Compression Fittings Mechanical Properties 

Property Value Standard
Tensile Strength (Minimum) 827 MPa (120 ksi) ASTM B444 / ASME SB444
Yield Strength 0.2% Proof (Minimum) 414 MPa (60 ksi) ASTM B444 / ASME SB444
Elongation (Minimum) 30% ASTM B444 / ASME SB444
Hardness (Maximum) 25 HRC / 269 HBN ASTM B444 / ASME SB444
Reduction in Area (Minimum) 35% ASTM B444 / ASME SB444

Inconel 625 Physical Properties

Property Value
Density 8.44 g/cm3 (0.305 lb/in3)
Melting Range 1,290 to 1,350 degrees Celsius (2,354 to 2,462 degrees Fahrenheit)
Specific Heat Capacity 410 J/kg.K at 21 degrees Celsius
Thermal Conductivity 9.8 W/m.K at 21 degrees Celsius
Modulus of Elasticity 207 GPa (30.0 x 10^6 psi) at room temperature
Magnetic Permeability 1.0006 at 15.9 kA/m (non-magnetic)
Electrical Resistivity 1.290 microhm/m at 21 degrees Celsius
Thermal Expansion Coefficient 12.8 micrometers/m.K at 21 to 93 degrees Celsius

Inconel 625 Operating Temperature Range

Service Type Temperature Range
Cryogenic Service Down to minus 196 degrees Celsius (minus 320 degrees Fahrenheit)
Ambient and Moderate High Temperature Up to 650 degrees Celsius (1,202 degrees Fahrenheit)
Elevated Temperature Oxidation Service Up to 980 degrees Celsius (1,796 degrees Fahrenheit)
Maximum Intermittent Temperature Up to 1,093 degrees Celsius (2,000 degrees Fahrenheit)

Inconel 625 Compression Tube Fittings Dimension

OD OD Actual Thread Designation – Nominal Size Thread Per inch
(fraction inch) >(inches) >(inches) NPT BSP
5/16 0.3125 1/16 27 28
13/32 0.405 1/8 27 28
35/64 0.540 1/4 18 19
43/64 0.675 3/8 18 19
27/32 0.840 1/2 14 14
1-3/64 1.050 3/4 14 14
1-5/16 1.315 1 11-1/2 11
1-21/32 1.660 1-1/4 11-1/2 11
1-29/32 1.900 1-1/2 11-1/2 11
2-3/8 2.375 2 8 11
2-7/8 2.875 2-1/2 8 11
3-1/2 3.5 3 8 11
4 4.0 3-1/2 8 11
4-1/2 4.5 4 8 11
5-5/8 5.563 5 8 11
6-5/8 6.625 6 8 11

Pressure Rating of Inconel 625 Compression Tube Fittings

NPT/ISO Pipe Size in. Alloy 625  
Female Male
PSIG (BAR) PSIG(BAR)
1/8 12 500 (861) 15 000 (1 033)
1/16 12 900 (888) 15 000 (1 033)
1/4 12 700 (875) 15 000 (1 033)
2 7 500 (516) 7 500 (516)
1/2 9 400 (647) 14 800 (1 019)
3/8 10 200 (702) 15 000 (1 033)
3/4 8 900 (613) 10 000 (689)
1 1/4 9 600 (661) 10 000 (689)
1 8 500 (585) 10 000 (689)
1 1/2 8 900 (613) 9 600 (661)

Applications of Inconel 625 Compression Fittings

  • Textile machinery
  • Oil and gas industry
  • Pulp and paper industry
  • Power plants
  • Energy industries
  • Furniture
  • Pharmaceutical processing industry
  • Modern architecture
  • Home appliances
  • Water waste projects
  • Synthetic fiber
  • Heat exchanger
  • Fluid piping
  • Dairy and food processing
  • Other Applications

Other Types of Inconel 625 Tube Fittings

Frequently Asked Questions 

What is the difference between Inconel 625 ferrule fittings and compression fittings?

Inconel 625 ferrule fittings use one or two ferrules to grip and seal the tube mechanically. Single ferrule fittings use a single ring that both grips and seals, while double ferrule fittings use a separate front ferrule for grip and a back ferrule for the seal, providing higher pull-out resistance and better vibration performance. Inconel 625 compression tube fittings is a broader term that covers both single and double ferrule designs, as well as other tube-to-fitting connection types. For offshore and high-vibration applications, double ferrule Inconel 625 instrumentation fittings are the preferred specification.

What certifications are available for Inconel 625 tube fittings from Kalpataru Piping Solutions?

All Inconel 625 tube fittings supplied by Kalpataru Piping Solutions come with EN 10204 3.1 material test certificates from NABL accredited laboratories. Additional certifications available on request include EN 10204 3.2 (TPI certified), NACE MR0175 / ISO 15156 compliance for sour service, ASME BPVC Section III documentation for nuclear applications, and positive material identification (PMI) reports. Our quality management system is ISO 9001:2015 certified.

Are Kalpataru Inconel 625 compression fittings compatible with Swagelok and Parker A-lok fittings?

Yes. Our Inconel 625 compression tube fittings and double ferrule fittings are manufactured to match Swagelok and Parker A-lok dimensional standards, ensuring direct interchangeability. Our UNS N06625 fittings can be used as a cost-effective replacement for OEM brand fittings without modification to existing tubing or fittings on site. For specific size and pressure rating compatibility confirmation, please contact our technical sales team with your existing fitting specifications.

Request a Quote for Inconel 625 Compression Tube Fittings

Kalpataru Piping maintains ready stock of UNS N06625 Inconel 625 Compression Tube Fittings in all standard and custom sizes, including ferrule fittings, union fittings, elbows, tees, crosses, and other instrumentation tube fittings.

Get an immediate price for your Inconel 625 compression fittings requirement. Our technical team will review your specifications and respond within 24 hours with the best pricing and delivery options.

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