Inconel X-750 Pipe Fittings

Metracore Alloys is a manufacturer and supplier of nickel alloy piping components, with a distribution network reaching project sites across India, the Gulf, Europe, and Southeast Asia. Our production programme covers Inconel X-750 Pipe Fittings in buttweld, forged, and socket weld configurations. Inconel X-750 (UNS N07750) is a precipitation-hardenable nickel-chromium alloy.

 

Aluminium and titanium additions form the strengthening gamma prime phase during the age hardening cycle. The alloy resists oxidation, corrosion and high-temperature creep while keeping mechanical strength up to 704°C in service. Fittings in this grade suit extreme temperature and pressure environments where long service life is critical: gas turbines, nuclear circuits, and aerospace pipework all depend on them.

What are Inconel X-750 Pipe Fittings?

Inconel X-750 Pipe Fittings are pipework connectors produced from the age-hardenable nickel-chromium superalloy UNS N07750. The base chemistry carries at least 70% nickel and 14.0 to 17.0% chromium. During heat treatment, gamma prime particles, Ni3(Al,Ti), precipitate through the matrix and lock in strength at red heat.

 

Nickel Alloy X-750 Pipe Fittings withstand oxidation and corrosion in hot air, combustion gas, and aggressive process media. The component exhibits high resistance to fatigue under cyclic loading conditions. Fabricators weld the grade with matching filler metal, then restore aged properties through post-weld heat treatment. Once installed, Inconel Alloy X-750 Pipe Fittings hold their dimensions and structural integrity across extended service.

Why Choose Metracore Alloys?

Metracore Alloys stocks a wide range of nickel alloy fittings. We offer Inconel X-750 as well as other superalloy lines. Precision forming, machining and stage-wise quality control operate under ISO certified manufacturing system. Non-standard dimensions and schedules follow the customer’s requirements. Independent third-party witness inspection can be arranged on request and all orders are accompanied with traceable 3.1 documentation. Producing in-house enables sharp quotations and short dispatch times from ready stock.

Inconel X-750 Pipe Fittings Specifications

The manufacturing envelope for this grade is summarised below, from size and schedule through end connections, testing scope, and certification.
Standard

Material Grade

Inconel X-750

uns-number

UNS Number

N07750

astm-specifications

Werkstoff Number

2.4669

Standard

ASTM Standard

ASTM B366 (fittings); ASTM B637, AMS 5698, AMS 5699 (alloy specifications)

Dimensions

Size Range

15 NB to 600 NB (1/2" to 24") buttweld; forged types up to 100 NB

Tolerance

Wall Thickness

Per ASME B36.19M and ASME B36.10M pipe dimensions

Bars

Schedule

SCH 10S to SCH XXS

testing

Pressure Rating

2000#, 3000#, 6000#, 9000# forged classes

Dimensions

End Connections

Bevelled buttweld, socket weld, threaded NPT

Tolerance

Dimensional Standards

ASME B16.9, ASME B16.28, MSS SP-43, ASME B16.11

testing

Inspection & Testing

Chemical analysis, tensile and hardness testing, PMI, dye penetrant; radiography on request

certification

Certifications

EN 10204 3.1 Mill Test CertificateEN 10204 3.1 Mill Test Certificate

Product Types of Inconel X-750 Pipe Fittings

Eleven configurations form our standard range: Inconel X-750 Buttweld Pipe Fittings from elbows through return bends, plus Inconel X-750 Forged Pipe Fittings shaped for socket weld duty.
90° Elbow

90° Elbow

45° Elbow

45° Elbow

Equal Tee

Equal Tee

Reducing Tee

Reducing Tee

Concentric Reducer

Concentric Reducer

Eccentric Reducer

Eccentric Reducer

Pipe Cap

Pipe Cap

Stub End

Stub End

Cross

Cross

Return Bend

Return Bend

Reach out to Metracore Alloys for Inconel X-750 Pipe Fittings

Technical Details of Inconel X-750 Pipe Fittings

Chemical Composition of Inconel X-750 Pipe Fittings

Chemistry for UNS N07750 Pipe Fittings is controlled to the limits below. Aluminium, titanium, and niobium govern the age-hardening response of the alloy.
Element Nickel Cobalt Chromium Iron Titanium Aluminium Niobium (+ Tantalum) Carbon Manganese Silicon Sulphur
% by weight 70.0 min 1.00 max 14.0 – 17.0 5.0 – 9.0 2.25 – 2.75 0.40 – 1.00 0.70 – 1.20 0.08 max 1.00 max 0.50 max 0.01 max
The table below specifies baseline room-temperature mechanical properties following precipitation hardening. Certified test results for each production heat are provided via EN 10204 3.1 mill certification.
Property Tensile Strength Yield Strength (0.2% offset) Elongation Hardness Density Melting Range
Value 1100 MPa (160 ksi) min 690 MPa (100 ksi) min 20% min 302 – 363 HB 8.28 g/cm³ 1393 – 1427°C

Key Features of Inconel X-750 Pipe Fittings

Eight characteristics separate this grade from solid-solution nickel alloys, each tied to the aged gamma prime microstructure.

  • Superior oxidation resistance is provided by a protective chromium oxide film that shields surfaces during thermal cycling.
  • High tensile and creep strength carries all the way to the 704°C service ceiling.
  • Fatigue resistance under vibration suits rotating equipment pipework.
  • Corrosion attack from organic acids and alkalis stays minimal.
  • Performance holds steady at elevated temperatures because the aged structure resists coarsening in service.
  • Thermal fatigue cracking from alternate heating and quenching is limited.
  • Operational life spans years between scheduled replacements.
  • Structural stability under pressure holds through combined mechanical and thermal load.

Standards & Quality Compliance

Our production follows the specifications governing wrought nickel alloy fittings. ASTM B366 Inconel X-750 Pipe Fittings carry heat traceability and marking to that standard, with ASTM A960 covering the shared requirements for wrought fittings. Dimensional control rests on ASME B16.9 buttweld geometry, ASME B16.28 short radius patterns, and MSS SP-43 light-wall designs. A 3.1 certificate to EN 10204 documents chemistry and mechanical results for each order gives proof of quality.

Benefits of Inconel X-750 Pipe Fittings

Six commercial gains justify this grade’s price in critical service.

  • Performance in high-temperature environments allows engineers to remove cooling provisions from around pipe joints.
  • Oxidation and corrosion resistance together cut wall-thinning allowances.
  • Mechanical strength permits thinner sections and lighter assemblies.
  • Cyclic loading doesn’t shorten joint life as it does with standard fittings.
  • Maintenance spend falls as inspection intervals stretch.
  • Extended service life pushes replacement past normal plant turnaround windows.

Manufacturing Process of Inconel X-750 Pipe Fittings

Pipe Firtting Manufacturing Process

Typical Industrial Applications

Inconel X-750 pipe fittings serve 8 sectors where heat, pressure, or radiation rules out conventional alloys.

Exporter, Manufacturer & Supplier of Inconel X-750 Pipe Fittings in various material and sizes.

FAQs

What are Inconel X-750 Pipe Fittings?

Inconel X-750 Pipe Fittings are high-temperature piping connectors manufactured in precipitation-hardenable alloy UNS N07750, rated for duty at temperatures reaching 704°C.

The advantages are greater hot strength, longer creep and fatigue life, and stability where stainless softens.
Manufacturing is governed by ASTM B366, with general requirements covered under ASTM A960. Dimensions comply with ASME B16.9, B16.11, B16.28 and MSS SP-43.
Yes. The alloy holds mechanical strength to 704°C and resists oxidation up to roughly 980°C where stress stays low.
Aerospace, gas turbine, nuclear, chemical, offshore energy, and heat treatment sectors order these fittings.
We manufacture both types: buttweld elbows, tees, caps, and reducers, plus forged socket weld and threaded patterns.
Custom sizes, non-standard schedules, and fittings machined to drawing are produced on order; share dimensional details at enquiry.
Yes, mill test certification per EN 10204 3.1 comes with every order, and third-party agencies can witness testing on request.
Forged fittings come in 2000#, 3000#, 6000#, and 9000# classes; buttweld types take the connected pipe schedule’s rating.
Yes, we ship INconel pipe fittings globally; Gulf, European, and Southeast Asian projects account for most export volume, all fully documented.
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