Nickel Alloy Hastelloy C276 · heat-treated state · default condition
Nickel Alloy Hastelloy C276 Solution Annealed
Properties of the Solution Annealed condition, compared with the other Hastelloy C276 tempers.
Standard stocked condition for plate, sheet, tube and bar — maximum corrosion resistance and ductility for forming and welding.
What is Hastelloy C276 Solution Annealed?
Hastelloy C276 Solution Annealed is Hastelloy C276 heat treated to Solution Annealed — standard stocked condition for plate, sheet, tube and bar — maximum corrosion resistance and ductility for forming and welding. Hastelloy C276 Solution Annealed has a yield strength of 360 MPa (52.2 ksi) and a tensile strength of 790 MPa (115 ksi) — weaker than 55% of nickel alloy grades. Elongation at break is 60% and the elastic modulus is 205 GPa (29.7 Msi). Hastelloy C276 Solution Annealed has a density of 8.89 g/cm³ (0.321 lb/in³), heavier than 88% of nickel alloy grades. It melts at 1,323°C (2,413 °F).
Advantages
- Ductile — tolerates forming and impact — 60%, better than 98% of nickel alloy grades
- Tough — resists crack growth — 200 MPa·√m (182 ksi·√in), better than 97% of nickel alloy grades
- Good corrosion resistance — 95/100, better than 97% of nickel alloy grades
- Readily welded — 85/100, better than 84% of nickel alloy grades
- Forms and bends easily — 75/100, better than 81% of nickel alloy grades
Hastelloy C276 Solution Annealed properties
Typical room-temperature values for Hastelloy C276 Solution Annealed — 13 properties are specific to this condition; the rest are grade-level values shared by every Hastelloy C276 temper. Each bar shows where the value sits among the nickel alloy grades in FabDigit's library — further right is higher.
Physical3
Hastelloy C276 Solution Annealed has a density of 8.89 g/cm³ (0.321 lb/in³), heavier than 88% of nickel alloy grades. It melts at 1,323°C (2,413 °F).
Mechanical14
Hastelloy C276 Solution Annealed has a yield strength of 360 MPa (52.2 ksi) and a tensile strength of 790 MPa (115 ksi) — weaker than 55% of nickel alloy grades. Elongation at break is 60% and the elastic modulus is 205 GPa (29.7 Msi).
Thermal6
Hastelloy C276 Solution Annealed is rated for continuous service to 650°C (1,202 °F). It conducts heat at 10.2 W/m·K (5.89 BTU/hr·ft·°F), worse than 79% of nickel alloy grades. Thermal expansion is 11.2 µm/m·K (6.22 µin/in·°F).
Electrical3
Hastelloy C276 Solution Annealed conducts electricity at 1.3 % IACS, worse than 83% of nickel alloy grades.
Chemical & Environmental3
Corrosion resistance is excellent (95/100), better than 97% of nickel alloy grades.
Sustainability3
Producing a kilogram of Hastelloy C276 Solution Annealed takes about 210 MJ of energy and emits 14 kg of CO₂ — more than 81% of nickel alloy grades. Typical recycled content is 40%.
Manufacturability8
Hastelloy C276 Solution Annealed's machinability is poor (18/100, worse than 62% of nickel alloy grades); weldability excellent (85/100); formability very good (75/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Other Hastelloy C276 tempers and conditions
Hastelloy C276 is also supplied in 4 other conditions. The full side-by-side table is on the Hastelloy C276 overview.
- Solution AnnealedDefaultStandard stocked condition for plate, sheet, tube and bar — maximum corrosion resistance and ductility for forming and welding.360 MPa yield · 194 HB
- Cold WorkedChoose when higher strength and hardness are needed (springs, fasteners, precision tube) and heavy forming or maximum SCC margin is not required.800 MPa yield · 30 HRC
Working with Hastelloy C276 Solution Annealed
Is Hastelloy C276 easy to machine?
Low speed, heavy positive-rake carbide or ceramic tooling, rigid setup, generous flood coolant and constant feed — the alloy work-hardens fast and will glaze if the tool dwells.
Can Hastelloy C276 be welded?
Excellent with GTAW/GMAW/SMAW using matching ERNiCrMo-4; keep heat input and interpass temperature low, no preheat, no PWHT required, and clean off all oxide/sulfur contamination first.
Can Hastelloy C276 be formed, bent or molded?
Very ductile but roughly twice the forming load of 304 stainless; cold form with generous radii and interstage anneal at 1120–1175 °C followed by rapid cooling for heavy work.
What surface finishes work on Hastelloy C276?
Pickle/passivate or electropolish for maximum corrosion performance; no anodizing — mechanical polishing and glass-bead blasting are common, and any weld heat tint should be removed.
Hastelloy C276 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Mo | 15 – 17 | 16 |
| Cr | 14.5 – 16.5 | 15.5 |
| Fe | 4 – 7 | 5.5 |
| W | 3 – 4.5 | 3.8 |
| Co | ≤ 2.5 | 1 |
| Mn | ≤ 1 | 0.5 |
| V | ≤ 0.35 | 0.1 |
| Si | ≤ 0.08 | 0.04 |
| C | ≤ 0.01 | 0.01 |
| P | ≤ 0.04 | 0.01 |
| S | ≤ 0.03 | 0.01 |
| Nibalance, typically 55–59 % | balance | — |
Hastelloy C276 Solution Annealed — frequently asked
What is Hastelloy C276 Solution Annealed used for?
Hastelloy C276 Solution Annealed is typically used for hot hydrochloric acid piping, FGD scrubbers and ducting, pulp and paper bleach plant equipment, sulfuric acid heat exchangers, pharmaceutical reactor internals and sour gas wellhead components. In short: severe-corrosion nickel alloy.
What is the yield strength of Hastelloy C276 Solution Annealed?
Hastelloy C276 Solution Annealed has a typical yield strength of 360 MPa (52.2 ksi) and a tensile strength of 790 MPa (115 ksi) — weaker than 55% of nickel alloy grades. Strength varies by condition: see the 5 listed tempers.
Is Hastelloy C276 Solution Annealed easy to machine?
Not especially — machinability is rated poor (18/100, worse than 62% of nickel alloy grades). Low speed, heavy positive-rake carbide or ceramic tooling, rigid setup, generous flood coolant and constant feed — the alloy work-hardens fast and will glaze if the tool dwells.
Can Hastelloy C276 Solution Annealed be welded?
Yes — weldability is rated excellent (85/100). Excellent with GTAW/GMAW/SMAW using matching ERNiCrMo-4; keep heat input and interpass temperature low, no preheat, no PWHT required, and clean off all oxide/sulfur contamination first.
What surface finishes work on Hastelloy C276 Solution Annealed?
Pickle/passivate or electropolish for maximum corrosion performance; no anodizing — mechanical polishing and glass-bead blasting are common, and any weld heat tint should be removed.
Can Hastelloy C276 Solution Annealed be formed, bent or molded?
Very ductile but roughly twice the forming load of 304 stainless; cold form with generous radii and interstage anneal at 1120–1175 °C followed by rapid cooling for heavy work.
What is the maximum service temperature of Hastelloy C276 Solution Annealed?
Hastelloy C276 Solution Annealed is rated for continuous use to about 650°C (1,202 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Can FabDigit make parts in Hastelloy C276 Solution Annealed?
Yes — Hastelloy C276 Solution Annealed is available for CNC machining and sheet metal with instant online pricing. Upload a STEP file to get a price and a DFM check.
Sources
- ASTM B575 — Ni-Cr-Mo alloy plate, sheet and strip — ASTM International (2022)
- ASTM B574 — Ni-Mo-Cr alloy rod, bar and wire — ASTM International (2021)
- ASTM B622 / B619 — Ni-Cr-Mo alloy seamless and welded pipe & tube — ASTM International (2021)
- HASTELLOY C-276 alloy principal features and properties — Haynes International (2020)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- ASM Handbook Vol. 13B — Corrosion: Materials — ASM International (2005)
- GB/T 15007 / NS334 — SAC (2017)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.