Hastelloy C276 Round Bars
Home › Materials › Hastelloy Products > Hastelloy C276 Round Bars
Hastelloy C276 Round Bar Supplier: ASTM B574 UNS N10276 Alloy C276 Rod
The most widely used nickel alloy in the commercial production is Hastelloy C276, UNS N10276 / WNR 2.4819 / NW 0276 / Nicrofer 5716, the most universally resistant to corrosion. Its unique chemistry, Molybdenum 15 to 17%, Chromium 14.5 to 16.5% and Tungsten 3 to 4.5%, delivers outstanding resistance to hydrochloric acid (HCl) at all concentrations and temperatures, sulphuric acid (H2SO4), hydrofluoric acid (HF), ferric chloride (FeCl3), wet chlorine, seawater and phosphoric acid. Aashish Metal and Alloys manufactures round bars, hex bars, flat bars, square bars, hollow bars and PSQ (Pump Shaft Quality) bars of 5mm through 500mm diameter ASTM B574 / ASME SB574 Hastelloy C276, with EN 10204 3.1 mill test reports and third-party inspection, exported to more than 5 View all Hastelloy Products in our portfolio.
- Hastelloy C276 Round Bars Specifications
- Hastelloy C276 Round Bars Equivalent Grades
- Hastelloy C276 Round Bars Quality and Test reports
- Hastelloy C276 Round Bars Surface Finish
- Related Types Of Hastelloy C276 Round Bars
- Dimensions Of Hot Rolled Hastelloy C276 Round Bar
- Hastelloy C276 Round Bar Size Chart
- Standard Sizes ASTM B574 Hastelloy C276 Hex Bar
- Hastelloy C276 Flat Bar Size
- Size chart of Hastelloy C276 Square Bar
- Hastelloy C276 Round Bar Weight Chart
- Chemical Composition
- Mechanical Properties
- Hastelloy C276 Round Bars price list
- We supply of variety Hastelloy C276 Round Bars
- Application Of Hastelloy C276 Round Bars
ASTM B574 / ASME SB574 Hastelloy C276 Round Bar Specifications
| Parameter | Details |
|---|---|
| Standard | ASTM B574 / ASME SB574 |
| Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Round Bar Size | 5mm to 500mm diameter (up to 800mm on request) |
| Hex Bar Size | 2mm to 100mm A/F |
| Flat Bar Size | Thickness: 2mm to 100mm | Width: 10mm to 500mm |
| Square Bar Size | 4mm to 100mm |
| Hollow Bar Size | 32mm OD x 16mm ID to 250mm OD x 200mm ID |
| Threaded Bar Billet | 1/2″ to 495mm diameter |
| Tolerance | H8, H9, H10, H11, H12, H13, K9, K10, K11, K12 or as per client requirement |
| Finish | Cold drawn (bright), centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, rough turned, bright, polish, grinding, centreless ground, black |
| Surface | Hot rolled pickled, bright, sand blasting finished, cold drawn, hairline, polished |
| Condition | Annealed, solution annealed, hardened and tempered |
| Technique | Cold drawn, hot rolled, forged, cold rolled |
| Form | Round, hex, flat, square, hollow, threaded, forged, bright, PSQ (Pump Shaft Quality), rectangular, half-round, precision ground |
| Mill Test Certificate | EN 10204 3.1 / 3.2 | Third party inspection available |
Equivalent Grades of UNS N10276 / WNR 2.4819 / NW 0276 / Nicrofer 5716
| Grade | UNS | WNR | JIS | EN |
|---|---|---|---|---|
| Hastelloy C276 | N10276 | 2.4819 | NW 0276 | NiMo16Cr15W (Nicrofer 5716) |
Chemical Composition of Hastelloy C276 Round Bar
| Grade | Ni | Cr | Mo | W | Fe | Co | Mn | Si | C (max) | S (max) |
|---|---|---|---|---|---|---|---|---|---|---|
| C276 | Balance | 14.5-16.5 | 15-17 | 3-4.5 | 4-7 | 2.5 max | 1.0 max | 0.08 max | 0.01 | 0.03 |
Mechanical Properties ASTM B574 Hastelloy C276 Bar
| Grade | Tensile Strength (min) | 0.2% Yield Strength (min) | Elongation (%) | Hardness |
|---|---|---|---|---|
| Hastelloy C276 | 790 MPa (115 ksi) | 355 MPa (52 ksi) | 40% min | Rb 100 max |
Physical Properties of Hastelloy C276
| Property | Value |
|---|---|
| Density | 8.89 g/cm3 |
| Melting Point | 1370 degrees C (2500 degrees F) |
| Thermal Conductivity | 10.2 W/m-K at 100 degrees C |
| Electrical Resistivity | 1.30 microhm-m |
| Magnetic Permeability | 1.0002 (non-magnetic in annealed condition) |
| Specific Heat Capacity | 427 J/kg-K |
| Modulus of Elasticity | 205 GPa |
Hastelloy C276 Round Bar Product Forms Available
| Product Form | Description |
|---|---|
| Round Bar | Standard round cross-section; most common form for machined components |
| Hex Bar | Hexagonal cross-section; for valve stems, fittings, instrumentation bodies |
| Flat Bar | Rectangular section in standard widths; for brackets, flanges, structural uses |
| Square Bar | Square cross-section; for keyways, structural and machined parts |
| Hollow Bar | Tubular bar for machining into sleeves, bushings and hollow shafts |
| PSQ Bar (Pump Shaft Quality) | Centreless-ground, tight-tolerance bar for agitator and pump shaft applications; straightness and surface finish held to precision standards |
| Bright Bar | Cold-drawn and polished; superior surface finish for instrumentation and precision machining |
| Forged Bar | For large diameters requiring improved grain structure and mechanical integrity |
| Precision Ground Bar | Ground to H8/h9 tolerance for critical-clearance assemblies |
Corrosion Resistance Hastelloy C276 Bar Performance in Aggressive Media
The most frequently asked question when specifying Hastelloy bar is whether to select C276 or Hastelloy C22 Round Bar. The table below clarifies the key differences:
| Property | Hastelloy C276 (UNS N10276) | Hastelloy C22 (UNS N06022) |
|---|---|---|
| Nickel Content | Balance (~57%) | Balance (~56%) |
| Chromium (Cr) | 14.5 to 16.5% | 20 to 22.5% |
| Molybdenum (Mo) | 15 to 17% | 12.5 to 14.5% |
| Tungsten (W) | 3 to 4.5% | 2.5 to 3.5% |
| Density | 8.89 g/cm3 | 8.69 g/cm3 |
| Tensile Strength (min) | 790 MPa | 690 MPa |
| Best Corrosion Resistance | Reducing media: HCl, HF, H2SO4 at all concentrations | Mixed oxidising and reducing media; best pitting and crevice resistance |
| Pitting / Crevice Resistance | Excellent | Superior (higher Cr content) |
| High Temp Service Limit | Up to 1038 degrees C | Up to 1038 degrees C |
| ASTM Standard (Bar) | ASTM B574 | ASTM B574 |
| Recommended For | Severe reducing acid service, HCl at all concentrations, sour gas | Mixed acid service, FGD environments, chlorine bleach |
Selection guidance: Choose Hastelloy C276 when the primary concern is resistance to reducing acids — particularly HCl, HF and H2SO4 at elevated concentrations and temperatures. Choose Hastelloy C22 where the service environment contains a mixture of oxidising and reducing media, or where superior pitting and crevice corrosion resistance is the priority.
Hastelloy C276 vs C22 Round Bar Comparison Table
| Property | Hastelloy C276 (UNS N10276) | Hastelloy C22 (UNS N06022) |
|---|---|---|
| Nickel Content | Balance (~57%) | Balance (~56%) |
| Chromium (Cr) | 14.5 to 16.5% | 20 to 22.5% |
| Molybdenum (Mo) | 15 to 17% | 12.5 to 14.5% |
| Tungsten (W) | 3 to 4.5% | 2.5 to 3.5% |
| Density | 8.89 g/cm3 | 8.69 g/cm3 |
| Tensile Strength (min) | 790 MPa | 690 MPa |
| Best Corrosion Resistance | Reducing media: HCl, HF, H2SO4 at all concentrations | Mixed oxidising and reducing media; best pitting and crevice resistance |
| Pitting / Crevice Resistance | Excellent | Superior (higher Cr content) |
| High Temp Service Limit | Up to 1038 degrees C | Up to 1038 degrees C |
| ASTM Standard (Bar) | ASTM B574 | ASTM B574 |
| Recommended For | Severe reducing acid service, HCl at all concentrations, sour gas | Mixed acid service, FGD environments, chlorine bleach |
Hastelloy C276 Round Bar Size Range and Weight Charts
| Dia/Width (mm) | Sq Wt/m (kg) | Rd Wt/m (kg) | Sq Area (cm2) | Rd Area (cm2) | Sq Perim (cm) | Rd Perim (cm) |
|---|---|---|---|---|---|---|
| 5 | 0.2 | 0.15 | 0.25 | 0.2 | 2 | 1.57 |
| 6 | 0.28 | 0.22 | 0.36 | 0.28 | 2.4 | 1.88 |
| 8 | 0.5 | 0.39 | 0.64 | 0.5 | 3.2 | 2.51 |
| 10 | 0.73 | 0.63 | 1 | 0.79 | 4 | 3.14 |
| 12 | 1.13 | 0.89 | 1.44 | 1.13 | 4.8 | 3.77 |
| 14 | 1.54 | 1.21 | 1.96 | 1.54 | 5.6 | 4.4 |
| 16 | 2.01 | 1.58 | 2.56 | 2.01 | 6.4 | 5.03 |
| 18 | 2.54 | 2 | 3.24 | 2.54 | 7.2 | 5.65 |
| 20 | 3.14 | 2.47 | 4 | 3.14 | 8 | 6.28 |
| 22 | 3.8 | 2.98 | 4.84 | 3.8 | 8.8 | 6.91 |
| 25 | 4.91 | 3.85 | 6.25 | 4.91 | 10 | 7.85 |
| 28 | 6.15 | 4.83 | 7.84 | 6.16 | 11.2 | 8.8 |
| 32 | 8.04 | 6.31 | 10.24 | 8.04 | 12.8 | 10.05 |
| 36 | 10.17 | 7.99 | 12.96 | 10.18 | 14.4 | 11.31 |
| 40 | 12.56 | 9.86 | 16 | 12.57 | 16 | 12.57 |
| 45 | 15.9 | 12.49 | 20.25 | 15.9 | 18 | 14.14 |
| 50 | 19.62 | 15.41 | 25 | 19.64 | 20 | 15.71 |
| 63 | 31.16 | 24.47 | 36.69 | 31.17 | 25.2 | 19.79 |
| 80 | 50.24 | 39.46 | 64 | 50.27 | 32 | 25.13 |
| Diameter (mm) | Weight per metre (kg) | Diameter (in) | Weight per metre (kg) |
|---|---|---|---|
| 4mm | 0.10 | 3/16″ | 0.14 |
| 5mm | 0.16 | 1/4″ | 0.25 |
| 6mm | 0.22 | 5/16″ | 0.39 |
| 7mm | 0.30 | 3/8″ | 0.56 |
| 8mm | 0.40 | 7/16″ | 0.77 |
| 10mm | 0.62 | 1/2″ | 1.00 |
| 12mm | 0.89 | 9/16″ | 1.22 |
| 14mm | 1.22 | 5/8″ | 1.56 |
| 15mm | 1.40 | 11/16″ | 1.89 |
| 16mm | 1.59 | 3/4″ | 2.25 |
| 18mm | 2.01 | 7/8″ | 3.07 |
| 20mm | 2.48 | 1″ | 4.03 |
| 22mm | 3.00 | ||
| 24mm | 3.57 | ||
| 25mm | 3.88 |
| Size (Inches) | Weight per Foot (lb) | Weight per 12 ft (lb) |
|---|---|---|
| 3/16″ | 0.104 | 1.248 |
| 1/4″ | 0.180 | 2.160 |
| 5/16″ | 0.290 | 3.480 |
| 3/8″ | 0.420 | 4.920 |
| 1/2″ | 0.740 | 8.880 |
| 5/8″ | 1.150 | 13.80 |
| 3/4″ | 1.660 | 19.92 |
| 7/8″ | 2.300 | 27.60 |
| 1″ | 2.90 | 34.80 |
| 1-1/4″ | 4.600 | 55.20 |
| 1-1/2″ | 6.600 | 79.20 |
| 2″ | 11.80 | 141.60 |
| 2-1/2″ | 18.42 | 221.04 |
| 3″ | 26.53 | 318.36 |
| Width (mm) | Width (inch) | Thickness (mm) | Thickness (inch) |
|---|---|---|---|
| 25 | 1 | 5 to 20 | 3/16 to 4/5 |
| 30 | 1-3/16 | 5 to 20 | 3/16 to 4/5 |
| 35 | 1-3/8 | 5 to 20 | 3/16 to 3/16 |
| 40 | 1-4/7 | 5 to 25 | 3/16 to 1 |
| 50 | 2 | 5 to 32 | 3/16 to 1-1/4 |
| 60 | 2-3/8 | 5 to 35 | 3/16 to 1-3/8 |
| 75 | 3 | 8 to 25 | 5/16 to 1 |
| 100 | 4 | 8, 10, 12 | 5/16, 3/8, 1/2 |
| Square Bar Size | kg per Metre | Standard Length (m) | Colour Code |
|---|---|---|---|
| 10 x 10 mm | 0.81 | 6.0 | Yellow |
| 12 x 12 mm | 1.16 | 6.0 | Pink |
| 16 x 16 mm | 2.06 | 6.0 | Grey |
| 20 x 20 mm | 3.22 | 6.0 | Green |
| 25 x 25 mm | 5.03 | 6.0 | Purple |
| 32 x 32 mm | 8.24 | 6.0 | Orange |
| 40 x 40 mm | 12.8 | 6.0 | Yellow |
| 50 x 50 mm | 20.12 | 6.0 | Green |
Surface Finish Options of Hastelloy C276 Bar
| Code | Description | Code | Description |
|---|---|---|---|
| CD | Cold Drawn | P | Polished |
| BD | Bright Drawn | SRE | Slit Rolled Edge |
| CG | Centreless Ground | HF | Hot Finished |
| CF | Cold Finished | HRAP | Hot Rolled Annealed and Pickled |
| P&T | Peeled and Turned | RT | Rough Turned / Peeled |
| ST | Smooth Turned | PR | Peeled and Reeled |
Supply Condition and Quality Documents
Hastelloy C276 round bars are supplied in the following conditions:
- Annealed (solution annealed and water quenched) — standard supply condition per ASTM B574
- Cold drawn bright bar — tighter tolerances with improved surface finish
- PSQ (Pump Shaft Quality) — centreless ground, precision straightness and roundness
- Forged bar — for large diameters requiring improved grain structure
Quality documents available with every supply:
- EN 10204 3.1 Mill Test Report (chemical composition and mechanical properties certified by mill)
- EN 10204 3.2 on request (third-party witnessed testing)
- 100% radiography on request for critical forgings
- NACE MR0175 compliance documentation on request
- Raw materials traceability certificate
Applications of Hastelloy C276 Round Bars
Component-Level Applications
Agitator shafts: PSQ bar is the standard specification for agitator shaft applications in chemical reactors handling HCl, H2SO4, HF and mixed acid environments, where dimensional precision and corrosion resistance must be maintained simultaneously.
Pump shafts: The combination of tensile strength (790 MPa min), corrosion resistance and machinability makes C276 PSQ bar the preferred choice for centrifugal and reciprocating pump shafts in chemical process industries.
Valve stems and spindles: Hex bar and round bar in C276 are used for valve stems and spindles in severe service valves handling chlorine, HCl and mixed acid streams.
Heat exchanger tube sheets: C276 forged bar and plate are machined into tube sheets for heat exchangers in chloride-rich and acid service.
Reactor internals: Baffles, supports, thermowell bars and instrumentation components machined from C276 round bar for chemical and pharmaceutical reactors.
Industry Applications
Chemical Processing Industry: Primary industry for C276 bar; used in acid pickling tanks, chemical reactors, and agitator shafts handling HCl, H2SO4 and HF.
Pollution Control / Flue Gas Desulphurisation (FGD): C276 bar and fittings for absorber vessels and rotating equipment in coal-fired power plant scrubber systems.
Pulp and Paper Industry: Bleach plant equipment, digesters and handling systems where chlorine compounds and acids are present.
Offshore Oil and Gas: Downhole tools, wellhead components and subsea equipment in sour gas (H2S + CO2 + chloride) service per NACE MR0175.
Pharmaceutical Manufacturing: Reactor shafts, agitators and vessel internals where both acid resistance and cleanliness are required.
Waste Treatment and Incineration: Components handling aggressive leachates, scrubber liquids and chloride-contaminated waste streams.
Marine and Desalination: Pump shafts, impellers and fasteners in seawater and brine handling systems.
Related Hastelloy C276 Products from Aashish Metals
As a dedicated supplier of the complete Hastelloy C276 product ecosystem, Aashish Metals stocks the following related products:
Hastelloy C276 Round Bar Frequently Asked Questions
ASTM B574 is a standard specification published by ASTM International of wrought Hastelloy C276 (UNS N10276) bar. The same standard that is used by ASME Boiler and Pressure Vessel Code is ASME SB574 that is used in the construction of pressure vessels and piping. The technical specifications – composition, mechanical properties and testing are the same. ASME SB574 must be used in ASME-coded construction when the material is utilized.
No. Hastelloy C276 cannot be hardened by heat treatment. Cold working is the only way to increase strength. After welding or forming, solution annealing (usually 1121 degrees C followed by water quench) is used to reestablish the optimum corrosion resistance. The alloy is more work hardening than conventional austenitic stainless steels.
PSQ (Pump Shaft Quality) bar is centreless-ground bar made of Hastelloy C276 in a tight tolerance of diameter, straightness and finish. These accuracy parameters play a pivotal role in rotating equipment tasks whereby shaft deflection and surface roughness influence mechanical seal operation and equipment dependability. PSQ bar Precludes second grinding processes in most pump shaft applications.
Hastelloy C276 may be utilized as continuous service at temperatures as high as about 1038 degrees C (1900 degrees F). However, corrosion resistance in aqueous media is optimised in the solution-annealed condition. At higher temperatures (above 650 degrees C), aqueous corrosion is replaced by thermal oxidation as the dominant mode of degradation.
Yes. One of the main distinctions of Hastelloy C276 in comparison with other nickel alloys and stainless steels is its great resistance to hydrochloric acid (HCl) in all concentrations and temperatures. This causes it to be the standard material in HCl pickling equipment, acid reactors and their related agitator and pump shafts.
Aashish Metals provides EN 10204 3.1 mill test reports, certifying the chemical composition and mechanical properties. EN 10204 3.2 (third-party witnessed) can be requested. Oil and gas applications can use compliance documentation of NACE MR0175 and have raw material traceability certificates.
Request a Quote for Hastelloy C276 Round Bar
Hastelloy C276 round bar prices vary with diameter, condition (annealed, cold drawn, PSQ), order quantity and global nickel market rates.
Contact Aashish Metal and Alloys for the latest Hastelloy C276 round bar price list and available stock. Call: +91-22-66362223 / 66394926 | Email: export@aashishmetal.com
We maintain bulk stock of all standard sizes and export to 52+ countries worldwide with short lead times.
Export Country
MIDDLE EAST Saudi Arabia | AFRICA Nigeria NORTH AMERICA Usa | EUROPE Russia | ASIA India SOUTH AMERICA Argentina |
Products
Special Products
PRODUCT RANGE
Please feel free to contact us. We will get back to you with 2 business days. Or just call us now.
