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Inconel 718 Round Bar Manufacturer

Siddhagiri Metals and Tubes is a Global supplier and Exporter of Inconel 718 Round bar. The materials conform ASTM B637 UNS N07718 standards and specifications.
Other Names: ASTM B637 UNS N07718, Inconel Bars, Inconel 718 Bars, Inconel Round Bar, Inconel Hex Bar, Inconel Square Bar, Inconel Flat Bar, ASTM B637 Bar, UNS N07718 BAR
Material: Inconel 718
Brand: Siddhagiri Metals and Tubes
Manufacturer: Siddhagiri Metals and Tubes
Rating: 4.5/5 based on 83 customer reviews

ASTM B637 UNS N07718 • Inconel Round Bar • Inconel Hex Bar • Inconel Flat Bar • Inconel Bar

Siddhagiri Metals and Tubes has been in the metal indurstry from decades, always with an eye on serving our customers’ needs in the most cost-effective ways possible. Inconel 718 Round Bar is one of the products supplied by us. Our ASTM B637 UNS N07718 Bars are available in many sizes, dimensions and configurations. Having established ourselves and set up in the heart of India's commercial center Mumbai, we have built up adequate stock levels of all essential items within our scope of supply and are in position to offer immediate deliveries.

Round bars are most frequently used to make parts such as gears, shafts, axles, and flywheels for rotating machinery applications. Round Bars can also be engineered and used for manufacturing of seamless pipe and tubing used in oil drilling, military, and other applications. Inconel 718 Round bars conform to ASTM, UNS, ASME, UNS, ANSI, EN standards and specifications. Round Bar is available in a wide variety of sizes ranging from 10 mm to 125 mm. Inconel Bar available in following forms Round Bar, Hex Bars, Flat Bar, Square Bar. Round bars are typically used in Engineering Construction, Residential Construction, Non-Residential Construction, Mining Infrastructure, Transport and Storage Manufacturing.

Siddhagiri Metals and Tubes offers a comprehensive range of Inconel Bar which is available in Alloy and Stainless Steel grades. We pride ourselves on supplying Round Bar products to suit your exact requirements. Our Round bars are finished according to, En, BS, ANSI, ASME specifications. The length of the round bar is 50 mm to 6000 mm long and it can be Single Random, Double Random and Cut Length. The characteristics of high resistance to thermal oxidation, corrosion resistance and high strength in our round bar meet the requirements for use in numerous applications within the aerospace, chemical processing, thermal processing, oil & gas, pharmaceutical and bio synthetic and motorsport industries. We supply ASTM B637 round bars with diameters between 0.5 mm to 500 mm.

Our company has been exporting Inconel 718 Round bars Globally and has attained a recognition in many countries. We have exported to countries like Europe, Australia, Japan, Indonesia, South Africa, Thailand, UAE, Qatar, etc.

  • Bar Specification: ASTM B637 UNS N07718 & ASME SB637 UNS N07718
  • Thickness: 50 mm to 6000 mm Long
  • Type: Inconel Bar
  • Form: Inconel 718 Round Bar, Inconel 718 Hex Bars, Inconel 718 Flat Bar, Inconel 718 Square Bar
  • Length: Single Random, Double Random & Cut Length
  • Finish: Bright and Black Finish
  • Origin: Indian Origin, European Origin, Japanese Origin
  • Testing and Documents: Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, Destructive Test Report, Non Destructive Test Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports
  • Packing: Packed in Wooden Boxes, Bubble wraps, Steel Strips Bundled, or as per Customers Requests

Inconel 718 Alloy Bar Sizes in Stock

Material Diameter Length Make
Inconel 718 Round Bar, Inconel 718 Flat Bar, Inconel 718 Hex Bar 0.5 mm to 500 mm 50 mm to 6000 mm Long Indian, European and Japanese origin

Forms of ASTM B637 UNS N07718 in Stock

In Stock Inconel Round Bar Supplier

Round Bar

Inconel 718 Round Bars available in 0.5 mm to 500 mm Diameter

In Stock Inconel 718 Hex Bar Supplier

Hex Bar

Inconel 718 Hex Bar ASTM B637 UNS N07718

In Stock Inconel Flat Bar Supplier

Flat Bar

Inconel 718 Flat Bar Supplier and Manufacturer ASTM B637 UNS N07718

  • Chemical Properties
  • Mechanical Properties
  • Physical Properties
  • C. S. Si Ti. Mn P. Nb. Al. Co. B. Mo. Ni. Fe. Cr. Cu.
    - - - 0.650 - - 4.750 0.200 - - 2.800 50.000 Bal 17.000
    0.080 0.015 0.350 1.150 0.350 0.015 5.500 0.800 1.000 0.006 3.300 55.000 21.000 0.300
  • Yield Str0.2% Proof(MPa) Tensile Str(MPa) Elong(% in 50mm) Hardness HBW
    827 1034 20.00 298
    - - - 363
  • Density, lb/in3 lb/in³  
      Annealed 0.296 0.296
      Annealed and Aged 0.297
    Melting Range °F 2300-2437
      °C 1260-1336
    Specific Heat at 70°F 0.104 (435) 0.104 (435)
      Btu/lb °F (at 21°C, J/kg °C)  
    Curie Temperature,   °F (°C)
      Annealed Material <-320 ( <-196)
      Annealed and Aged Material -170 (-112)
    Permeability at 200 oersted and 70°F  
      Annealed Material 1.0013
      Annealed and Aged Material 1.0011

Properties of Inconel 718 alloy

Inconel 718 Cold Forming

Cold forming may be done using standard tooling although plain carbon tool steels are not recommended for forming as they tend to produce galling. Soft die materials (bronze, zinc alloys, etc.) minimize galling and produce good finishes, but die life is somewhat short. For long production runs the alloy tool steels ( D-2, D-3) and high-speed steels (T-1, M-2, M-10) give good results especially if hard chromium plated to reduce galling. Tooling should be such as to allow for liberal clearances and radii. Heavy duty lubricants should be used to minimize galling in all forming operations. Bending of sheet or plate through 180 degrees is generally limited to a bend radius of 1 T for material up to 1/8" thick and 2 T for material thicker than 1/8"..

Inconel 718 Hot Forming

Inconel alloy 718 is more resistant than most materials to deformation during hot forming. Its relative resistance is shown by pressures developed in the roll gap at 20% reduction (Table 47). It is readily hot-worked if sufficiently powerful equipment is used. Hot forming is performed in the 1650°-2050°F temperature range. In the last operation, the metal should be worked uniformly with a gradually decreasing temperature, finishing with some light reduction in the 1650°-1750°F range. This procedure is necessary to ensure notch ductility in stress-rupture applications when material has been annealed and aged. (See below). In heating for hot working, the material should be brought up to temperature, allowed to soak a short time to ensure uniformity, and withdrawn

Inconel 718 Machining

Inconel alloy 718 can be readily machined, but its high strength and work-hardening characteristics must be considered in the selection and use of proper tool materials and design, operating speeds, and coolants. When machined in the age-hardened condition the alloy will have a slightly better finish; chip action on chipbreaker tools will be better. The use of annealed material, however, provides easier machining and longer tool life.

Inconel 718 Welding

Inconel 718 can be welded either in the annealed condition. Welding in the heat conditions will cause the formation of softened heat-affected zone.

Inconel 718 Heat Treatment

Two heat treatments are generally utilized for Inconel alloy 718:

  • —Solution anneal at 1700-1850°F followed by rapid cooling, usually in water, plus precipitation hardening at 1325°F for 8 hours, furnace cool to 1150°F, hold at 1150°F for a total aging time of 18 hours, followed by air cooling.
  • —Solution anneal at 1900-1950°F followed by rapid cooling, usually in water, plus precipitation hardening at 1400°F for 10 hours, furnace cool to 1200°F, hold at 1200°F for a total aging time of 20 hours, followed by air cooling. If the material is to be machined, formed, or welded, it typically is purchased in the mill annealed or stress relieved condition. The material is then fabricated in its most malleable condition. After fabrication, it can be heat treated as required per the applicable specification.

Services We Offer


Documentation is a very important part of the products we supply, and we work continuously to enhance the efficiency of the document-handling process without compromising quality of the product. Documents provided along with the shipment include Certificate of Origin, Material Test Certificate as per EN 10204 3.1 and 10204 3.2, NACE MR10103 and NACE MR0175 certified Test Certificates.

Quality Assurance

Inconel Bars are manufactured and controlled to international standards such as ASTM, ASME, BS, MSS, EN, DIN or WERKSTOFFE. Our products undergo stringent quality tests before they are dispatched.

Material Testing

PMI Testing, Ultrasonic Test, Mechanical Testing, Spectro Tests for Chemical Analysis of the grade, Flaring Test, IGC, etc. are some of the tests conducted at our facility. We welcome stage wise inspection from any of your representative or third party inspection agencies.

Packing and Delivery

The product is wrapped and packed in wooden crates or carton boxes. Our primary goal is to deliver quality products in time, no matter where the client is located.

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