Choosing the wrong alloy for a high-stress application costs time, money, and sometimes the entire component. At O’Hare Precision Metals, we supply both Inconel and Hastelloy bar stock to engineers and procurement teams who need the right material from the start.
Both alloys fall under our nickel and high-temperature alloy categories. They serve different threats, and knowing which one fits your application makes the sourcing decision much simpler.
Which Nickel Alloy Bar Belongs in Your Application
Inconel and Hastelloy are both nickel-based alloys, but they solve different problems. Inconel handles extreme heat. Hastelloy handles chemical aggression. Picking between them comes down to what your component faces in service.
We carry both in bar form, ground and ready for critical applications. Our team in Arlington Heights, IL, works with aerospace, chemical processing, oil and gas, and other industries that depend on these materials every day.
Inconel: When Extreme Heat Is the Problem
Inconel is a nickel-chromium superalloy built for extreme heat resistance. It appears in aerospace engine components and other high-temperature applications where sustained thermal load would degrade most other materials.
If your part lives near a heat source and needs to hold dimension and strength under those conditions, Inconel is the alloy to specify. It performs where others fail, and that’s the reason it remains a standard choice in aerospace and high-temperature manufacturing.
Hastelloy: When Corrosive Environments Are the Threat
Hastelloy is a nickel-molybdenum alloy built for chemical resistance. We carry Hastelloy Bar, Hastelloy C276 as a nickel-molybdenum-chromium alloy, and Hastelloy C22 as a corrosion-resistant nickel alloy across our product pages.
All three point to the same environment: reactors, heat exchangers, piping, and process systems where aggressive fluids are present. If chemical exposure is the primary threat to your component, Hastelloy is where you start.
Welding and Fabrication Considerations
Both alloy families support TIG, MIG, and submerged arc welding. The requirement for both is controlled heat input during welding to preserve the material properties you’re specifying in the first place.
Plan that requirement into your fabrication process before the material arrives. It’s easier to account for at the sourcing stage than to work around after the fact on material that isn’t easy to replace.
Why Ground Bar Stock Changes Your Machining Equation
Both Inconel and Hastelloy are tough by design. That toughness makes in-house machining time-consuming and costly. Receiving bar already ground to your dimensional requirements reduces that burden directly.
Our centerless grinding holds tolerances up to .0001 inches with a surface finish of 8 micro inches or better. We run in-process gauging during every grinding cycle. Capability extends up to 9 inches in diameter and 50 feet in length, with our specialized division covering up to 7 inches in diameter at 24 feet.
Companion Services Available With Your Order
Saw cutting is available with CNC automated saws up to 7 inches in diameter, using cold saw blades that produce clean cuts with tight tolerances. Turning reduces the workpiece diameter to a specified dimension with a smooth finish. Burnishing creates compressive residual stress that resists fatigue failure on cylindrical and conical parts.
Packaging is handled per your preference, with options including individually wrapped tubes and collars, custom wood boxes, and paper wrap in bundles. Quality control inspections run at each phase of our operation, and we are ISO 9001:2015 certified.
Other Nickel Alloys in Our Inventory
Our nickel and high-temperature alloy category goes beyond Inconel and Hastelloy. A286 round bar is an iron-nickel-chromium alloy used in high-temperature fasteners and jet engine parts. Monel bar stock is a nickel-copper alloy suited for marine and chemical environments.
Nitronic 60 round bar is an austenitic option known for wear and galling resistance. If your application sits outside the Inconel and Hastelloy comparison, there’s a strong chance another grade in our inventory fits.
Request a Quote From O’Hare Precision Metals
We’ve supplied precision-ground and cold-finished round bar stock since 1970, and our approach hasn’t changed: superior service, high-quality materials, and the in-house capabilities to deliver both. That’s the standard behind every order we ship, and it’s why we carry a 5.0-star rating on Google. “Superior in Steel Production and Machining Operations” isn’t just a tagline. It’s what we’re held to every day.
Our team is ready to help you confirm the right alloy, specify the correct dimensions, and deliver bar stock ground to your requirements. Submit your requirements through our quote form at ohareprecision.com/request-a-quote, call us at (847) 640-6050, or email sales@ohareprecision.com. We’re available Monday through Friday, 9:00 am to 5:00 pm CST, from our facility in Arlington Heights, IL.
FAQs
What is the main difference between Inconel and Hastelloy bars?
Inconel is a nickel-chromium superalloy built for extreme heat resistance. Hastelloy is a nickel-molybdenum alloy built for chemical resistance in corrosive process environments.
Can O’Hare supply Inconel or Hastelloy bar already ground to tolerance?
Yes. We grind to .0001 inch tolerance with a surface finish of 8 micro inches or better, on bars up to 9 inches in diameter and 50 feet in length.
What welding processes work with these alloys?
TIG, MIG, and submerged arc welding are all compatible. Controlled heat input is required to preserve material properties during fabrication.
What other nickel alloys does O’Hare Precision Metals carry?
We also stock A286 round bar, Monel bar stock, Nitronic 60 round bar, Hastelloy C276, and Hastelloy C22 under our nickel and high temperature alloy category.