Inconel 625 Buttweld Fittings
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Midland Alloys Inc., a reputable Indian manufacturer and international supplier of inconel 625 buttweld fittings, produces high-quality parts that satisfy exacting industrial requirements. The non-magnetic nickel-based alloy used to make our Inconel 625 Buttweld Fittings is known for its remarkable strength, corrosion resistance and toughness. These fittings are adaptable to extreme enviornments because it can survive conditions from cryogenics to temperatures as high as 1093°C. One of the many types of elbows that can be used to change the direction of pipes at angles such as 45° and 90°. These fittings function dependably in high-temperature systems due to their high melting point of 1350°C. We provide fittings that meet international standard like ASTM B366 in seamless, welded and fabricated forms.
Benefits of Inconel Alloy 625 Buttweld Fittings
- High Mechanical Strength – With a tensile strength of 930 MPa and elongation of 42.5%, these fittings resist mechanical stress and deformation.
- Corrosion Resistance – Offers excellent resistance to chloride-induced pitting, crevice corrosion, and general oxidation.
- Thermal Performance – Capable of continuous operation at temperatures up to 1093°C, supported by a high melting point of 1350°C.
- Leak-Proof Joints – Provides tight, permanent, and leak-proof connections through buttweld fittings for critical piping systems.
- Non-Magnetic Properties – Suitable for sensitive aerospace and electronic applications.
- Multiple Constructions – Available in seamless and welded forms to accommodate both standard and complex installation needs.
- Low Maintenance – Resists scaling, fouling, and chemical degradation, resulting in reduced maintenance requirements.
Specification of Inconel 625 Butt Weld Pipe Fittings
All Inconel 625 Butt Weld Pipe Fittings by Midland Alloys Inc. are available in seamless, welded and fabricated forms, with dimensional standards per ASME B16.9, and B16.28.
Seamless Butt Weld Fittings: 1/2" - 10" Welded Butt Weld Fittings: 1/2" - 48"
ASTM B366 / ASME SB366
Forge, Cast, Push, Press, etc.
90 Deg. Elbow, 45 Degree Elbow, LR/SR Elbow, Reducers, Tee, Cross, Bends, U bend, 180 Deg Bend, End Cap, Lap-joint Stub End
ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1560, BS10
Plain End, Beveled End, Treaded
SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75
Seamless / Welded / Fabricated
Types of Inconel 625 Buttweld Fitting
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Elbow (90°, 45°, Long Radius, Short Radius)Modifies the pipeline's flow direction at predetermined angles with regulated radii.
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Tee (Equal Tee, Reducing Tee)Adjusts the size of the main and branch lines to split or combine flow at 90° intersections.
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A reducer (eccentric or concentric)joins pipes with varying diameters while preserving flow offset or alignment.
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stub endIn non-permanent piping configurations, the stub end (long or short) connects to lap joint flanges for disassembly.
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Return Bends (180° bend)Redirects flow by 180 degrees, allowing the pipeline to reverse direction.
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Cross (Equal Cross, Reducing Cross)Provides multidirectional flow by joining four pipes at right angles.
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pipe capTo stop flow or pressure, an end cap also known as a pipe cap, seals the pipe's open end.
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Bend (3D, 5D, Custom Radius)This tool uses predefined or custom radii to gradually change the direction of pipelines.
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nipplesShort pipe segments called "nipples" (also known as "barrel" or "swage") are used to join two fittings or pipes.
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Collar / CouplingLinks two pipe sections in a straight run with a secure and leak-free joint.
Technical Details & Delivery Condition
| Grade | C | Mn | Si | S | Al | Fe | Ti | Cr2 | Mo | Nb + Ta | Ni |
| 625 | 0.10 | 0.50 | 0.50 | 0.015 | 0.40 | 5.0 | 0.40 | 20.0-23.0 | 8.0-10.0 | 3.15–4.15 | 58.0 min |
| Grade | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 625 | 8.4 g/cm3 | 1350 °C (2460 °F) | Psi – 75,000 , MPa – 517 | Psi – 1,35,000 , MPa -930 | 42.5 % |
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN | JIS | BS | GOST | OR |
| Inconel 625 | N06625 | 2.4856 | NC22DNB4M | NiCr22Mo9Nb | NCF 625 | NA 21 | ХН75МБТЮ | ЭИ602 |
Inconel Alloy Buttweld Fittings Grades We Offer
Inconel 625 Alloy Pipe Fittings Price List
| Size Chart of Inconel Forged Fittings | Equivalent Decimal | Nominal Diameter | Typical Threads In Inch |
| 5/16 | 0.313 | 1/16 | 27 |
| 13/32 | 0.405 | 1/8 | 27 |
| 35/64 | 0.540 | 1/4 | 18 |
| 43/64 | 0.675 | 3/8 | 18 |
| 27/32 | 0.840 | 1/2 | 14 |
| 1-3/64 | 1.050 | 3/4 | 14 |
| 1-5/16 | 1.315 | 1 | 11-1/2 |
1-21/32 | 1.660 | 1-1/4 | 11-1/2 |
| 1-29/32 | 1.900 | 1-1/2 | 11-1/2 |
| 2-3/8 | 2.375 | 2 | 11-1/2 |
| 2-7/8 | 2.875 | 2-1/2 | 8 |
| 3-1/2 | 3.500 | 3 | 8 |
| 4 | 4.000 | 3-1/2 | 8 |
| 4-1/2 | 4.500 | 4 | 8 |
Tolerance of Inconel 625 Buttweld Fittings
| Inconel Pipe Fittings Tolerance | 90 Deg And 45 Deg Elbows And Pipe Tee | Reducer (Concentric/ Eccentric) & Lap Joint Stub End (Long / Short) | Pipe End Caps | |||
| Normal Pipe Size (NPS) Of ASME B16.9 | O. (Outside) D. (Daimeter) at Bevel | I. (Inside) D.(Daimeter) at End | Wall Thickness Of T | Center-to-End Dimension A ,C ,B | Over-all Length Of H | Over-all Length Of F |
| 1/2 to 2-1/2 | +0.06 | Not less than 87.5% of nominal thickness | +/- 0.06 | +/- 0.06 | +/- 0.12 | |
| -0.03 | ||||||
| 3 to 3-1/2 | +/- 0.06 | +/- 0.06 | +/- 0.06 | +/- 0.06 | +/- 0.12 | |
| 4 | +/- 0.06 | +/- 0.06 | +/- 0.06 | +/- 0.06 | +/- 0.12 | |
| 5 to 8 | +/- 0.06 | +/- 0.06 | +/- 0.06 | +/- 0.06 | +/- 0.25 | |
| 10 to 18 | +0.16 | +/- 0.12 | +/- 0.09 | +/- 0.09 | +/- 0.25 | |
| -0.12 | ||||||
| 20 to 24 | +0.25 | +/- 0.19 | +/- 0.09 | +/- 0.09 | +/- 0.25 | |
| -0.19 | ||||||
| 26 to 30 | +0.25 | +/- 0.19 | +/- 0.12 | +/- 0.19 | +/- 0.38 | |
| -0.19 | ||||||
| 32 to 48 | +0.25 | +/- 0.19 | +/- 0.19 | +/- 0.19 | +/- 0.38 | |
| -0.19 | ||||||
Difference Between Inconel 625 Buttweld Fittings and Inconel 718 Buttweld Fittings
While both Inconel 625 and Inconel 718 are nickel-based superalloys, they differ significantly in composition and mechanical performance.Because of their higher nickel and chromium content, Inconel 625 Buttweld Fittings provide exceptional corrosion resistance, particularly in chemical and marine environments. On the other hand, Inconel 718 Fittings have higher tensile and yield strengths due to their precipitation-hardening ability, which makes them more appropriate for high-load applications such as turbines and aerospace structures. However, 625 fittings outperform 718 in terms of weldability and cryogenic temperature stability.
Manufacturing Process of Inconel 625 Buttweld Fitting
Pipe
Cutting
Forming
Sizing
Heat Treatment
Pickling
Beveling
Polishing
Sand Blasting
Elbow
Inspection
Analytic
Marking
Packing & Shipping
Applications of ASTM B366 Inconel 625 Buttweld Fittings
ASTM B366 Inconel 625 Buttweld Fittings serve a wide spectrum of industries where high mechanical strength and resistance to aggressive environments are essential. In construction and bridge infrastructure, they offer dependable structural support. In the petrochemical and oil & gas industries, they handle corrosive fluids and gases under extreme pressures. Their use in shipbuilding ensures saltwater resistance, while in power generation and offshore services, they maintain stability under high thermal loads. These fittings also find critical roles in engineering systems, food processing plants, and sugar industries, thanks to their hygiene compliance and long lifecycle.
Why Choose Us for B366 Inconel 625 Seamless Buttweld Fittings
Midland Alloys Inc. is a leading Indian manufacturer and exporter of high-quality Inconel 625 Buttweld Fittings engineered to match the toughest project specifications. Our team delivers fittings manufactured with precision machining, adhering to ASTM B366, EN standards, and ISO 9001:2015 quality processes. We offer tailored options such as custom lengths, special end finishes, wall thickness variations, and surface treatments for specific industrial environments. Backed by a strong global presence across Gulf nations, Europe, Africa, and Southeast Asia, we meet bulk and small orders with equal commitment. All products undergo in-house mechanical and chemical testing, mill certifications, and third-party inspections upon request. Our robust packaging—using wooden boxes, shrink wrap, and pallets—ensures safe delivery. Each fitting is clearly marked with grade, size, and heat number. We aim to build lasting relationships based on consistency, compliance, and dependable supply.
FAQs – Inconel 625 Buttweld Fittings
Prices vary by size and type—contact us for the latest Inconel 625 Fittings price list.
They meet ASTM B366 / ASME SB366, UNS N06625, and DIN 2.4856 standards.
Seamless fittings offer higher strength; welded are more cost-effective for standard use.
