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Nickel Alloy Hastelloy C276 Solution Annealed vs Hastelloy C276 Stress Relieved

Nickel Alloy · Hastelloy C276 temper comparison

Hastelloy C276 Solution Annealed and Hastelloy C276 Stress Relieved are two conditions of the same nickel alloy grade, Hastelloy C276: Solution Annealed versus Stress Relieved. The chemistry is identical, so every difference below comes from the condition. Hastelloy C276 Stress Relieved is the stronger of the two: yield strength 740 MPa (107 ksi) against 360 MPa (52.2 ksi) for Hastelloy C276 Solution Annealed, about 106% more; tensile strength follows at 970 MPa (141 ksi) vs 790 MPa (115 ksi). In exchange, Hastelloy C276 Solution Annealed is the more ductile: elongation 60% versus 28% for Hastelloy C276 Stress Relieved, and Hastelloy C276 Stress Relieved is harder (272 HB vs 194 HB). Hastelloy C276 Solution Annealed runs hotter in service (650°C vs 480°C continuous).

Hastelloy C276 Solution AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.

Hastelloy C276 Stress RelievedChoose it when strength drives the design.

Hastelloy C276 Solution Annealed vs Hastelloy C276 Stress Relieved: properties

Hastelloy C276 Solution AnnealedHastelloy C276 Stress Relieved

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

790 MPa115 ksi
970 MPa141 ksi

Yield Strength (0.2% offset)

360 MPa52.2 ksi
740 MPa107 ksi

Elongation at Break

60%
28%

Reduction in Area

65%
45%

Shear Strength

480 MPa69.6 ksi
590 MPa85.6 ksi

Fatigue Strength (Endurance Limit)

350 MPa50.8 ksi
440 MPa63.8 ksi

Fracture Toughness (K_IC)

200 MPa·√m182 ksi·√in
130 MPa·√m118 ksi·√in

Charpy V-Notch Impact (RT)

190 J140 ft·lbf
95 J70.1 ft·lbf

Hardness, Brinell

194 HB
272 HB

Same in both: Elastic (Young's) Modulus 205 GPa29.7 Msi · Shear Modulus 79 GPa11.5 Msi · Bulk Modulus 180 GPa26.1 Msi · Poisson's Ratio 0.31 · Hardness, Rockwell B 90 HRB

Physical

Density and transition temperatures.

Same in both: Density 8.89 g/cm³0.32 lb/in³ · Melting Point (Solidus) 1,323°C2,413 °F · Liquidus Temperature 1,371°C2,500 °F

Thermal

How each material carries heat and how hot it can run.

Max Service Temperature (continuous)

650°C1,202 °F
480°C896 °F

Same in both: Thermal Conductivity 10.2 W/m·K5.9 BTU/hr·ft·°F · Specific Heat Capacity 427 J/kg·K0.1 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.2 µm/m·K6.2 µin/in·°F · Latent Heat of Fusion 290 J/g125 BTU/lb · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 1.3 % IACS · Electrical Resistivity 1.3×10⁻⁶ Ω·m51.2 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

95 / 100
88 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.05 V

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

18 / 100
22 / 100

Machinability Rating (AISI 1212 = 100 %)

12%
15%

Weldability

85 / 100
78 / 100

Formability (cold)

75 / 100
40 / 100

Same in both: Castability 40 / 100 · Brazeability / Solderability 65 / 100 · Polishability 75 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 210 MJ/kg90,284 BTU/lb · Embodied Carbon (primary production) 14 kg CO₂/kg · Typical Recycled Content 40%

Strength versus weight

Yield strength against density for every nickel alloy grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

2005001,0006.577.588.59Density (g/cm³)Yield strength (MPa) — log scaleHastelloy C276

Hastelloy C276 Solution Annealed vs Hastelloy C276 Stress Relieved — frequently asked

Is Hastelloy C276 Stress Relieved stronger than Hastelloy C276 Solution Annealed?

Yes. Hastelloy C276 Stress Relieved has a typical yield strength of 740 MPa (107 ksi) against 360 MPa (52.2 ksi) for Hastelloy C276 Solution Annealed — about 106% more. Tensile strength is 970 MPa (141 ksi) vs 790 MPa (115 ksi).

Which condition does FabDigit quote by default, Solution Annealed or Stress Relieved?

Solution Annealed is the default Hastelloy C276 condition in the FabDigit quote flow. The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.

Which welds better, Hastelloy C276 Solution Annealed or Hastelloy C276 Stress Relieved?

Hastelloy C276 Solution Annealed. Its weldability rates excellent (85/100) against very good (78/100) for Hastelloy C276 Stress Relieved.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Hastelloy C276 Solution Annealed and Hastelloy C276 Stress Relieved side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.

Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.