[ Stud Bolts ]
Inconel 600 Stud Bolts
Patriot Bolt machines Inconel 600 stud bolts from certified ASTM B166 round bar. Alloy 600 (UNS N06600) is a nickel-chromium-iron alloy with at least 72% nickel. It resists oxidation at high temperature, caustic alkalis and chloride stress corrosion cracking, and it keeps its toughness down to cryogenic temperatures.
We make Inconel 600 studs to the specification on your purchase order or to your drawing. Every order ships with mill test reports traceable to the heat.
[ Quick Specs ]
Inconel 600 Stud Bolts at a Glance
- Also called
- Alloy 600 · UNS N06600 · W.Nr. 2.4816
- Material specs
- ASTM B166 / ASME SB166 bar
- Strength
- 80 ksi min tensile, 35 ksi min yield (ASTM B166, annealed)
- Key elements
- 72% Ni min, 14–17% Cr, 6–10% Fe
- Configurations
- Fully threaded, double-end and tap-end
Why Engineers Specify Inconel 600 Stud Bolts
- High-temperature oxidation. Chromium forms a protective oxide, so 600 holds up in hot air and furnace atmospheres.
- Caustic service. The high nickel content resists sodium hydroxide and other alkalis.
- Chloride stress corrosion cracking. Alloy 600 is far more resistant than austenitic stainless steel.
- Strength by condition. Alloy 600 is not age hardenable. Hot-worked or cold-worked bar gives higher minimums than annealed bar.
Inconel 600 Stud Bolt Specifications
ASTM B166 sets minimum properties for Alloy 600 rod and bar by condition and diameter.
| ASTM B166 condition and size | Tensile, min | Yield (0.2%), min | Elongation, min |
|---|---|---|---|
| Annealed (hot or cold worked), all sizes | 80 ksi | 35 ksi | 30% |
| Hot worked, rounds over 1/2 to 3 in | 90 ksi | 40 ksi | 25% |
| Hot worked, rounds over 3 in | 85 ksi | 35 ksi | 30% |
| Cold worked, rounds 1/2 to 1 in | 110 ksi | 85 ksi | 10% |
| Cold worked, rounds over 1 to 2-1/2 in | 105 ksi | 80 ksi | 12% |
Specify the bar condition on your purchase order. Confirm the stud size and preload with your engineer.
Inconel 600 Chemical Composition
| Element | Weight % |
|---|---|
| Nickel (+ cobalt) | 72.0 min |
| Chromium | 14.0–17.0 |
| Iron | 6.0–10.0 |
| Carbon | 0.15 max |
| Manganese | 1.00 max |
| Silicon | 0.50 max |
| Copper | 0.50 max |
| Sulfur | 0.015 max |
Limits per the current edition of the specification. The mill test report for your heat is the controlling document.
Stud Configurations
- Fully threaded studs, threaded end to end, for flange bolting where grip length varies.
- Double-end studs, threaded on both ends with an unthreaded center.
- Tap-end studs, with one end made to thread into a tapped hole.
Nickel alloys can gall. Use a compatible thread lubricant or anti-seize on assembly.
Applications and Industries
- Heat treating and furnaces: Furnace fixtures, retorts and hot flanges. See Industrial Manufacturing.
- Chemical processing: Caustic soda, chlorinated organics and other alkaline service. See Petrochemical & Refining.
- Power generation: High-temperature joints and steam-side hardware. See Power Generation.
Certification and Traceability
Patriot Bolt is ISO 9001:2015 certified. Each Inconel 600 order includes mill test reports traceable to the heat, along with a certificate of conformance to the specification on your purchase order.
Studs are marked with the material and our identification.
Compare Inconel 600 with other bolting grades in our Fastener Materials Matrix.
Inconel 600 Stud Bolts FAQ
What is Inconel 600 used for?
High-temperature oxidizing environments, caustic and alkaline service, and applications where chloride stress corrosion cracking rules out stainless steel.
How strong are Inconel 600 studs?
ASTM B166 annealed bar has an 80 ksi minimum tensile and 35 ksi minimum yield. Hot-worked and cold-worked bar have higher minimums.
How is Inconel 600 different from Inconel 625?
625 adds molybdenum and niobium, giving more strength and better resistance to pitting and seawater. 600 is a simpler nickel-chromium-iron alloy suited to heat and caustic service.
Can you make Inconel 600 studs to my drawing?
Yes. We machine Inconel 600 studs in the diameter, length and thread on your drawing or purchase order.
Request a Quote
Send us the stud configuration, diameter, length, thread, specification and quantity, or upload your drawing. Our team will confirm the material and lead time. Call (281) 581-0176 or request a quote.