Hastelloy C-276 round bar
ASTM B574
Hastelloy C-276 round bar supplies resistance to chemically aggressive, mixed process streams to machined shafts, retainers and fastening parts. Diameter allowance and delivery condition determine the route from stock to the final loaded section.
- MOQ
- 100 kg
- Samples · typical
- ~20 days
- Production · typical
- 25–35 days
- Heat treatment
- Solution annealed
EN 10204 3.1 MTC + heat-number traceability
Which standard is on your order?
Raw Material Specifications
Heat Treatment
Solution annealedSolution annealing dissolves detrimental precipitates, followed by rapid cooling to preserve corrosion resistance.
What we can make in Hastelloy C-276
Full-length bar
Use for repeated turning of shafts, studs and valve components from one heat-traceable stock length. Bar diameter must include machining allowance for the finished surface and straightness.
Cut blank
Use saw-cut blanks for short-run machining or forging starts. Cutting allowance and end squareness affect how much usable length remains after facing.
- Section
- Solid round
- Size
- Diameter × length
- Surface
- Turned · Ground · Drawn
- Supply form
- Bars · Cut pieces
- Final condition
- Solution annealed
- Inspection
- Cross-section · Surface · Delivery condition · Heat identity
Supply & preparation
Cut lengths preserve the heat identity of the original bar. Turning or grinding allowance follows the required finished diameter.
Material condition
The final annealed or specified strengthened condition is linked to the lot; an aging treatment is not assumed for a solid-solution alloy.
Finished geometry
Diameter, straightness, surface condition and cut length are checked against the stock order.
Where C-276 fits — and what matters
Chemical Processing
Pump shafts and mixer-drive partsHastelloy C-276 round bar provides machining stock for pump shafts and mixer-drive parts, including turned shoulders, bearing seats and threaded ends. Bar diameter includes the allowance for finishing the final part. Process liquid can remain at the contact after the exposed surface drains.
Pumps, Valves & OEM
Valve stems and pump-drive collarsHastelloy C-276 round bar provides machining stock for valve stems and pump-drive collars, including turned shoulders, bearing seats and threaded ends. Bar diameter includes the allowance for finishing the final part. Repeated maintenance makes fit, engagement and access part of the component specification.
Mining & Mineral Processing
Dosing-pump shafts and agitator-drive partsHastelloy C-276 round bar provides machining stock for dosing-pump shafts and agitator-drive parts, including turned shoulders, bearing seats and threaded ends. Bar diameter includes the allowance for finishing the final part. Leach solution and deposits act on the installed part; corrosion duty is separate from abrasive wear.
Same round bar. Different material priorities.
Hastelloy C-276 material dataInconel 625
Solid-solution strength and resistance to aggressive process liquids.
- Connection priority
- The mechanical requirement of the machined section
- Annealed or solution-annealed 625
- The delivery condition affects strength and high-temperature response. Keep the specified condition with the component’s mechanical acceptance; 718-style aging is not the strengthening route for 625. Include liquid retained at the machined diameter and cut surfaces of the future part in the exposure description.
Hastelloy C-22
Corrosion resistance across oxidising and reducing process exposures.
- Connection priority
- The mechanical requirement of the machined section
- Production and cleaning cycles
- C-22’s chromium-bearing chemistry is relevant when chemical exposure changes between operating and cleaning cycles. Include both liquids when comparing it with C-276 or a B-type nickel alloy. Include liquid retained at the machined diameter and cut surfaces of the future part in the exposure description.
Titanium Grade 2
Low mass, corrosion resistance and commercially pure titanium formability.
- Connection priority
- The mechanical requirement of the machined section
- Commercially pure titanium
- Grade 2 favours corrosion resistance and forming characteristics over the higher strength of Grade 5. Mating-metal contact, surface condition and assembly friction remain part of the connection design. Include liquid retained at the machined diameter and cut surfaces of the future part in the exposure description.
From drawing to documented delivery
- 01Drawing & BOMForm, dimensions and quantity
- 02Material & formingGrade, heat and manufacturing route
- 03Final inspectionGeometry, threads and ordered tests
- 04Documents & dispatchLot records and identified packing
Order documents
- Material identity
- UNS N10276 · heat number · ordered condition
- Stock acceptance
- Grade chemistry, supplied condition and ordered mechanical requirements.
- Dimensional record
- Cross-section · Surface · Delivery condition · Heat identity
- Traceability
- EN 10204 3.1 material certificate · production lot · identified packing
Build your C-276 round bar enquiry
Questions about C-276 round bar
Is the bar condition the same as the finished-part condition?
Not necessarily. A solution-treated or annealed blank may be selected for machining before a specified final treatment. Stock and finished-part mechanical records need to identify the conditions they represent.