Inconel 718 Tubes Manufacturer
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Midland Alloys Inc. is a trusted Manufacturer and Supplier of Incoloy 800/800H/800HT Tubes, and we also specialize in producing and exporting Inconel 718 Tubes for critical industrial applications. Inconel 718 is a nickel-chromium alloy known for its exceptional strength, corrosion resistance, and ability to withstand extreme temperatures. The addition of niobium, molybdenum, titanium, and aluminum enhances its yield strength and toughness, making it ideal for high-stress environments like aerospace, oil & gas, and power generation. Our range includes Inconel 718 Seamless Tubes, ASTM B516 Inconel 718 Welded Tubing, DIN NR. 2.4668 Round Tubing, and 718 Inconel Heat Exchanger Tubes, all manufactured in compliance with ASTM, ASME, and DIN/EN standards. These tubes resist pitting, oxidation, and chloride-induced cracking while offering a yield strength above 1030 MPa. Available in various forms such as Electric Resistance Welded Tubing, Decorative Tubes, Oval Tubes, and Seamless Round Tubing, we stock a wide range of sizes with complete mill test certification. With ISO certification, we provide prompt, dependable Inconel 718 Tubing export services worldwide.
Benefits of Inconel 718 Tubes
Inconel Alloy 718 Seamless Tubes are designed to perform even in the most demanding circumstances. Unrivaled strength and resistance to heat, corrosion, and wear are provided with the unique chemical composition.
- Inconel 718 is perfect for gas turbines and heat exchangers as it maintains its strength at temperatures as high as 700°C.
- In harsh conditions like acids, seawater, and high-pressure steam, it doesn’t corrode.
- The alloy can be welded readily with minimal cracking due to controlled niobium levels.
- It possesses very good fatigue resistance, even for high-pressure and vibration environments.
Inconel 718 Tubes Specifications
Seamless Tube OD : 1/8 -12" NPS
Welded Tube OD : 6.00 mm OD up to 914.4 mm OD
EFW Tube Size : 3.35 mm OD To 101.6 mm OD
ASME SB163 / ASME SB167 / ASTM B163 / ASTM B167
Seamless / Welded / ERW / Fabricated / CDW / 100% X Ray Welded
Round, Square, Rectangular, Hydraulic Etc
Single Random, Double Random, Standard & Cut length Tube
Plain End, Beveled End, Treaded Tube
SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Tubes, Finish as per customer Requirements
Contact us today to discuss how Inconel 718 Tubes can benefit your application. Whether you need guidance in selecting the right Tubes or have specific requirements, our team of experts is here to help you find the optimal solution.
Technical Details & Delivery Condition
| Element | Ni | Cr | Fe (nominal) | Mo | Nb | Al | Ti | S | C | Mn | Si | P | B |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Composition (%) | 50.0–55.0 | 17.0–21.0 | 18.5 | 7.0–9.5 | 2.75–4.0 | 0.035 | 1.0–1.7 | 0.01 | 0.03 | 0.035 | 0.35 | 0.015 | 0.006 |
| Property | 1000 psi | MPa |
|---|---|---|
| Yield Strength (0.2% offset) | 159.0 | 1096 |
| Tensile Strength | 191.5 | 1320 |
| Elongation % | 20 | |
| Rockwell Hardness | 40C |
Stainless Steel Tubes Grades We Offer
Difference Between Inconel 718 Tubes vs Inconel 625 Tubes
Inconel 718 Tubes and Inconel 625 Tubes differ in both composition and application focus. Inconel 718 contains higher amounts of niobium and titanium, delivering superior strength, hardness, and high-temperature performance. It’s often used in high-pressure turbines, engine parts, and structural components that experience long-term stress and heat. On the other hand, Inconel 625 Tubes feature more molybdenum and offer better flexibility and corrosion resistance, especially in marine and chemical environments. While 625 is easier to fabricate and weld, 718 is the go-to alloy for structural performance under extreme fatigue, creep, and rupture conditions.
Round Bar
Analytic
Cut to Length
Centering
Heating
Perforation
Inspection of Size
Pickling
Inspection of Surface
Lubricating
Cold Drawing (Cold Rolling)
Degreasing
Annealing
Straightening
Cut
Pickling / Passivating
Inspection
Analytic
Marking
Packing & Shipping
Applications of Inconel 718 Tubes
Inconel 718 Tubes are widely used across high-performance sectors where heat, corrosion, and mechanical stress are constant. In the aerospace industry, they are used in jet engine casings, turbine blades, afterburners, and thrust reversers due to their strength at elevated temperatures. In oil and gas, they are used for downhole components, wellhead parts, and subsea tubing where sulfide stress cracking is a concern. In nuclear and thermal power plants, ASTM B516 Inconel 718 Welded Tubing is used for steam lines and heat exchangers. 718 Inconel Heat Exchanger Tubes and Inconel 718 Electric Resistance Welded Tubing are also suitable for high-pressure chemical reactors and industrial furnaces. These tubes are also used in automotive turbochargers and medical devices that require long-term stability and corrosion resistance.
Why Choose Midland Alloys Inc. for Inconel 718 Tubes
Midland Alloys Inc. manufactures and offers a broad range of Inconel WERKSTOFF NR. 2.4668 Tubing for demanding international industries. To ensure both structural integrity and material compliance, each tubing undergoes through a rigorous testing process that includes hydrostatic, ultrasonic, and positive material identification tests. We provide immediate delivery of Inconel 718 Seamless Tubes, Alloy 718 Seamless Tubes, and ASTM B516 Inconel 718 Tubes in various finishes and sizes. As an ISO certified company, we make sure inventory is available for export and completely adhere to ASTM B163, B516, and DIN EN standards, customers depend on us as a reliable Inconel 718 Tubing Exporter and stockholder of ASTM B163 Inconel 718 Tube in India.
FAQs
Yes, Inconel is stronger than stainless steel and resists corrosion better at high temperatures.
As inconel usually doesn’t need coating, ceramic or aluminide coatings can be applied for extra protection.
UNS N07718 and Alloy 718 are other names for Inconel 718.
