Hastelloy C276 Round Bar Specifications, Sizes and ASTM B574 – UNS N10276
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Meta Description: Explore Hastelloy C276 round bar specifications, ASTM B574, UNS N10276, dimensions and procurement requirements. Contact Manan Steel & Metals for enquiries.
Table of Contents
- What Is Hastelloy C276 Round Bar?
- ASTM B574 and UNS N10276
- Hastelloy C276 Round Bar Specifications
- Available Dimensions and Finishes
- Chemical Composition
- Applications of C276 Round Bar
- How to Select the Right Round Bar
- Frequently Asked Questions
- Request a Quotation
1. What Is Hastelloy C276 Round Bar?
Hastelloy C276 round bar, also known as Alloy C-276 or UNS N10276 round bar, is a nickel-based alloy product used to manufacture components for demanding corrosive environments.
Its alloying elements include nickel, chromium, molybdenum and tungsten. These contribute to its resistance to many aggressive chemical environments, making the material relevant to selected chemical-processing, pollution-control and industrial applications.
Round bar is commonly considered when manufacturers need solid stock for machining shafts, pins, fittings, precision components and other engineered parts.
When sourcing this material, buyers should specify the complete designation, applicable product standard, diameter, length, material condition and documentation requirements.
2. ASTM B574 and UNS N10276
Understanding the material designation is important when preparing purchase orders and technical enquiries.
| Designation | Meaning |
|---|---|
| Hastelloy C276 | Common alloy name |
| Alloy C-276 | Alternative alloy designation |
| UNS N10276 | Material identification number |
| ASTM B574 | Specification for applicable nickel-alloy rod and bar products |
| ASME SB-574 | Corresponding ASME specification reference, where applicable |
| Werkstoff 2.4819 | European material-number designation associated with C-276 |
ASTM B574 is relevant to specified nickel-molybdenum-chromium and related alloy rod and bar products. The applicable standard should be confirmed against the purchase order and the required product form.
A material name alone does not establish compliance. Ask the supplier to confirm that the material, product form, dimensions and documentation meet your specified requirements.
For technical reference, consult the ASTM B574 material overview and the Hastelloy C276 technical datasheet.
3. Hastelloy C276 Round Bar Specifications
The following table summarises the key details buyers should confirm before purchasing.
| Parameter | Specification details |
|---|---|
| Material | Hastelloy C276 |
| Alternative designation | Alloy C-276 |
| UNS number | N10276 |
| Material family | Nickel-based corrosion-resistant alloy |
| Common bar standard | ASTM B574, where applicable |
| Product form | Round bar or rod |
| Diameter | As required and available |
| Length | Standard, random or cut-to-length, subject to availability |
| Surface finish | Confirm required finish with supplier |
| Inspection | As specified in the purchase order |
| Documentation | Material test certificate or other agreed records |
Important: The exact size range, finish, tolerances and delivery condition must be confirmed for the particular product and supplier. Do not assume that every diameter or length is available from stock.
4. Hastelloy C276 Round Bar Dimensions and Finishes
Industrial buyers may require different dimensions depending on the component design, machining allowance and final application.
Diameter and length
Before requesting a quotation, specify:
- Required diameter in millimetres or inches.
- Overall length or cut-piece length.
- Dimensional tolerance.
- Required quantity or total weight.
- Whether machining allowance is required.
For example, a procurement enquiry should state the exact diameter and length instead of simply requesting “Hastelloy C276 round bar.”
Surface finish
Depending on the applicable product specification and supplier capability, bar products may be supplied with different finishes, such as hot-finished, cold-finished, turned or ground surfaces.
Confirm the required finish before ordering, especially for precision machining or components with tight dimensional tolerances.
Material condition
The required heat-treatment or supply condition should be stated in the purchase specification. Do not assume that all bars are supplied in the same condition.
Where the component will operate in a corrosive environment, ensure that the specified material condition is suitable for the intended service.
5. Hastelloy C276 Chemical Composition
Hastelloy C276 is a nickel-based alloy containing chromium, molybdenum and tungsten.
| Element | Typical specification limits, weight % |
|---|---|
| Nickel | Balance |
| Chromium | 14.5–16.5 |
| Molybdenum | 15.0–17.0 |
| Tungsten | 3.0–4.5 |
| Iron | 4.0–7.0 |
| Cobalt | 2.5 maximum |
| Manganese | 1.0 maximum |
| Silicon | 0.08 maximum |
| Carbon | 0.01 maximum |
| Vanadium | 0.35 maximum |
These are commonly published composition limits for C-276. Verify the applicable standard and material test certificate for the specific supply.
Why composition matters
The alloy’s chemistry contributes to resistance against many corrosive media. However, actual performance depends on the chemical environment, temperature, concentration, impurities and operating conditions.
Engineers should use appropriate corrosion data when selecting C276 for critical service.
6. Applications of Hastelloy C276 Round Bar
Hastelloy C276 round bar may be selected as machining stock for components used in demanding environments.
Chemical-processing equipment: Suitable specified components for reactors, process equipment and chemical-handling systems.
Machined industrial components: Shafts, pins, spacers and precision parts where the engineering design calls for C-276.
Pumps and valves: Selected components exposed to corrosive process fluids.
Pollution-control systems: Parts used in appropriate scrubber and gas-treatment equipment.
Petrochemical equipment: Components for specific process conditions where C276 has been technically qualified.
The suitability of C276 depends on the component design and operating environment. Confirm the material selection with the responsible engineer before procurement.
7. How to Select the Right Hastelloy C276 Round Bar
Use this checklist before sending your enquiry.
- Confirm the grade: Specify Hastelloy C276 / Alloy C-276 / UNS N10276.
- State the standard: Mention ASTM B574 where applicable and required by the project.
- Provide dimensions: Include diameter, length and tolerances.
- Specify the condition: State the required material or heat-treatment condition.
- Confirm documentation: Identify material certificates, inspection or testing requirements.
- Mention quantity: Provide the number of pieces or total weight.
- Confirm delivery: Include the destination and required delivery schedule.
A clear specification helps reduce procurement errors and allows suppliers to respond with a more relevant quotation.
8. Frequently Asked Questions
What is the UNS number for Hastelloy C276 round bar?
The UNS designation for Hastelloy C276 is N10276.
Which ASTM standard applies to Hastelloy C276 round bar?
ASTM B574 is commonly applicable to specified nickel-alloy bar and rod products. Confirm the exact requirements and current applicable edition before placing an order.
Is Alloy C-276 the same as UNS N10276?
These names commonly refer to the same alloy designation. The purchase order should identify UNS N10276 and the required product standard to avoid ambiguity.
Which diameters are available?
Availability varies by supplier, product condition and market stock. Provide your required diameter and length to obtain a confirmed offer.
Can Hastelloy C276 round bar be machined?
Yes, it can be machined using suitable methods and tooling. Machining procedures should account for the alloy’s work-hardening behaviour and the component’s dimensional requirements.
What documents should I request?
Depending on the order and project requirements, request a material test certificate, traceability details and any agreed inspection documentation. Verify that the documents correspond to the supplied material.
9. Request a Hastelloy C276 Round Bar Quotation
Manan Steel & Metals welcomes enquiries for industrial metal and specialty-alloy requirements.
For a Hastelloy C276 / UNS N10276 round bar enquiry, please share the required diameter, length, quantity, applicable standard, material condition and delivery location.
Manan Steel & Metals
- Website: https://www.manansteel.com/
- Email: manansteel@gmail.com
- Phone: +91 79773 69869
- Address: Shop No. 2, Hira Building, 97 Khetwadi Main Road, Girgaon, Mumbai – 400004, Maharashtra, India.
Send your specifications to request a quotation for your industrial requirement.
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