Nickel Alloy Rene 80
also 5401
Rene 80 (AMS 5401) is a precipitation-strengthened cast nickel superalloy with roughly 45 % γ′, developed by General Electric for turbine blades and vanes needing high creep-rupture strength.
Reference datasheet — Rene 80 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the HT condition
Rene 80 tempers and conditions
Rene 80 is supplied in 5 conditions, soft to hard. HT is the default FabDigit quotes; the values on this page are for it.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Spheroidize annealed | Pick for non-critical hardware or as the intermediate state before solution/age; coarse as-cast γ′ gives lower ductility and rupture life. | 780 | 900 | 4 | 36 HRC | 1.3 % IACS |
Directionally solidified + full heat treatment | Columnar-grain casting for higher thermal-fatigue life and transverse-free creep loading in axial turbine blades. | 840 | 1,000 | 11 | 38 HRC | 1.3 % IACS |
Rene 80H | Hf-bearing modification (~0.7–1.2 % Hf) chosen for improved casting ductility, hot-tear resistance and coating adherence. | 840 | 1,010 | 9 | 38 HRC | 1.3 % IACS |
HTDefault Full heat treatment | Standard supply condition for equiaxed investment-cast blades and vanes — optimum γ′ size distribution and creep-rupture life. | 855 | 1,030 | 6 | 39 HRC | — |
Hot isostatic pressing then full heat treatment | Choose when microporosity must be closed for maximum LCF/creep-rupture scatter control in flight-critical blades. | 870 | 1,070 | 9 | 39 HRC | 1.3 % IACS |
Supply forms, finishes and certifications
Ways Rene 80 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
MA-INGOT | Master alloy ingot | Supply form |
What is Rene 80?
Rene 80 (AMS 5401) is a precipitation-strengthened cast nickel superalloy with roughly 45 % γ′, developed by General Electric for turbine blades and vanes needing high creep-rupture strength. Heat-treated castings give 855 MPa yield, 1030 MPa tensile, 6 % elongation and 39 HRC with service to 980 °C; it is produced as equiaxed and directionally solidified investment castings, in HIP plus heat-treated condition, and as the Hf-modified Rene 80H. Elongation is low, fusion welding is not practical, and machining is essentially grinding, EDM and ECM. MAR-M247 is the step up in temperature capability. Rene 80 has a density of 8.16 g/cm³ (0.295 lb/in³), lighter than 73% of nickel alloy grades. It melts at 1,260°C (2,300 °F). Rene 80 has a yield strength of 855 MPa (124 ksi) and a tensile strength of 1,030 MPa (149 ksi) — stronger than 90% of nickel alloy grades. Elongation at break is 6% and the elastic modulus is 200 GPa (29 Msi).
What is Rene 80 used for?
- Industrial gas turbine blades
- Aircraft engine vanes
- High-pressure turbine blades, equiaxed and DS
- Nozzle guide vane segments
- Blade tip shrouds
- Hot-section castings for turboshaft engines
- Coated gas-path hardware for power generation
Advantages
- High strength — 855 MPa (124 ksi), better than 90% of nickel alloy grades
Limitations
- Limited formability — 3/100, worse than 97% of nickel alloy grades
- Difficult to machine — 10/100, worse than 93% of nickel alloy grades
- Limited ductility — 6%, worse than 90% of nickel alloy grades
- Difficult to weld — 12/100, worse than 90% of nickel alloy grades
- High embodied carbon — 15 kg CO₂/kg, worse than 87% of nickel alloy grades
Rene 80 properties
Typical room-temperature values for Rene 80-HT; bars are the position among nickel alloy grades.
Physical3
Rene 80 has a density of 8.16 g/cm³ (0.295 lb/in³), lighter than 73% of nickel alloy grades. It melts at 1,260°C (2,300 °F).
Mechanical14
Rene 80 has a yield strength of 855 MPa (124 ksi) and a tensile strength of 1,030 MPa (149 ksi) — stronger than 90% of nickel alloy grades. Elongation at break is 6% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
Rene 80 is rated for continuous service to 980°C (1,796 °F). It conducts heat at 10.5 W/m·K (6.07 BTU/hr·ft·°F), worse than 73% of nickel alloy grades. Thermal expansion is 11.5 µm/m·K (6.39 µin/in·°F).
Electrical3
Rene 80 conducts electricity at 1.3 % IACS, worse than 89% of nickel alloy grades.
Chemical & Environmental3
Corrosion resistance is good (68/100), worse than 82% of nickel alloy grades.
Sustainability4
Producing a kilogram of Rene 80 takes about 230 MJ of energy and emits 15 kg of CO₂ — more than 91% of nickel alloy grades. Typical recycled content is 25%.
Manufacturability8
Rene 80's machinability is not recommended (10/100, worse than 93% of nickel alloy grades); weldability not recommended (12/100); formability not recommended (3/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the nickel alloy family
Yield strength against density for every nickel alloy grade FabDigit runs. Rene 80 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with Rene 80
Is Rene 80 easy to machine?
Very difficult — creep-feed grinding, EDM and ECM dominate; if turning/milling, use rigid setups, ceramic or coated carbide at low speed with heavy flood coolant.
Can Rene 80 be welded?
Poor fusion weldability due to ~45 % γ′; repair only by pre-heat/hot-box GTAW with ductile Ni fillers, laser cladding or wide-gap TLP brazing, followed by full re-heat treatment.
Can Rene 80 be formed, bent or molded?
Not forgeable or formable — vacuum investment casting (equiaxed or DS) with controlled shell preheat and grain refinement; HIP recommended to close microporosity.
Rene 80 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 |
|---|---|---|
| Cr | 13.7 – 14.3 | 14 |
| Co | 9 – 10 | 9.5 |
| Mo | 3.7 – 4.3 | 4 |
| W | 3.7 – 4.3 | 4 |
| Ti | 4.7 – 5.3 | 5 |
| Al | 2.8 – 3.2 | 3 |
| C | 0.15 – 0.19 | 0.17 |
| B | 0.01 – 0.02 | 0.02 |
| Zr | 0.02 – 0.1 | 0.03 |
| Hf0.7–1.2 % only in the Rene 80H modification | 0 – 1.2 | 0 |
| Feimpurity limit | ≤ 0.35 | |
| Siimpurity limit | ≤ 0.2 | |
| Mnimpurity limit | ≤ 0.2 | |
| Simpurity limit | ≤ 0.02 | |
| Nibalance, approx. 60 % | balance |
What surface finishes work on Rene 80?
Grit blast plus chemical/abrasive-flow deburring; service parts receive aluminide or Pt-aluminide diffusion coatings, MCrAlY overlays and thermal barrier ceramic topcoats — no anodizing.
Surface treatments FabDigit runs on nickel alloy parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Plating
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Nickel Alloy Rene 80 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- Trade names
- 5401
How much does Rene 80 cost?
Rene 80 is a high-cost nickel alloy ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Rene 80 — frequently asked
What is Rene 80 used for?
Rene 80 is typically used for industrial gas turbine blades, aircraft engine vanes, high-pressure turbine blades, equiaxed and DS, nozzle guide vane segments, blade tip shrouds and hot-section castings for turboshaft engines. In short: high creep-rupture cast alloy; 45 % γ′ blade grade; repair by braze only.
What is the yield strength of Rene 80?
Rene 80 has a typical yield strength of 855 MPa (124 ksi) and a tensile strength of 1,030 MPa (149 ksi) — stronger than 90% of nickel alloy grades. Strength varies by condition: see the 5 listed tempers.
Is Rene 80 easy to machine?
Not especially — machinability is rated not recommended (10/100, worse than 93% of nickel alloy grades). Very difficult — creep-feed grinding, EDM and ECM dominate; if turning/milling, use rigid setups, ceramic or coated carbide at low speed with heavy flood coolant.
Can Rene 80 be welded?
Not readily — weldability is rated not recommended (12/100). Poor fusion weldability due to ~45 % γ′; repair only by pre-heat/hot-box GTAW with ductile Ni fillers, laser cladding or wide-gap TLP brazing, followed by full re-heat treatment.
What surface finishes work on Rene 80?
Grit blast plus chemical/abrasive-flow deburring; service parts receive aluminide or Pt-aluminide diffusion coatings, MCrAlY overlays and thermal barrier ceramic topcoats — no anodizing.
Can Rene 80 be formed, bent or molded?
Not forgeable or formable — vacuum investment casting (equiaxed or DS) with controlled shell preheat and grain refinement; HIP recommended to close microporosity.
What is the maximum service temperature of Rene 80?
Rene 80 is rated for continuous use to about 980°C (1,796 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between Rene 80-HT and Rene 80-AC?
HT is the default condition — standard supply condition for equiaxed investment-cast blades and vanes — optimum γ′ size distribution and creep-rupture life. AC: pick for non-critical hardware or as the intermediate state before solution/age; coarse as-cast γ′ gives lower ductility and rupture life. Yield strength is 855 MPa in HT versus 780 MPa in AC.
How much does Rene 80 cost?
Rene 80 is a high-cost nickel alloy ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- AMS 5401 — Nickel Alloy, Corrosion and Heat Resistant, Investment Castings (Rene 80) — SAE International (2018)
- Superalloys II: High-Temperature Materials for Aerospace and Industrial Power — Wiley (1987)
- ASM Handbook Vol. 1 — Properties and Selection: Irons, Steels, and High-Performance Alloys — ASM International (1990)
- ASM Specialty Handbook: Heat-Resistant Materials — ASM International (1997)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.