Nickel Alloy IN-100
UNS N13100, N13017 · also Inconel 100, 5397
IN-100 (UNS N13100, AMS 5397) is a γ′-strengthened nickel superalloy for vacuum investment casting, with about 10 wt % combined Al+Ti providing high-temperature strength and creep resistance.
Reference datasheet — IN-100 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
IN-100 tempers and conditions
IN-100 is supplied in 4 conditions, soft to hard. HT is the default FabDigit quotes; the values on this page are for it.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
As fabricated | Pick for parts where the casting γ′ distribution from controlled cooling is acceptable and cost/lead time matters. | 815 | 960 | 8 | 38 HRC | 1.2 % IACS |
HTDefault Solution treated ~1080 °C/4 h + aged ~870 °C/32 h, air cooled | Standard fully heat-treated condition supplied for turbine blades and vanes — best balance of tensile, creep-rupture and structural stability. | 855 | 1,020 | 9 | 40 HRC | — |
hot isostatically pressed (~1190 °C/100–170 MPa) then solution + age | Choose when casting microporosity must be closed for maximum LCF life and rupture ductility in flight-critical blades. | 870 | 1,080 | 12 | 41 HRC | 1.2 % IACS |
Powder metallurgy | Wrought PM ('Gatorized') form for turbine disks — much higher yield strength and ductility than the cast alloy at sub-760 °C disk temperatures. | 1,050 | 1,500 | 18 | 45 HRC | — |
What is IN-100?
IN-100 (UNS N13100, AMS 5397) is a γ′-strengthened nickel superalloy for vacuum investment casting, with about 10 wt % combined Al+Ti providing high-temperature strength and creep resistance. Heat-treated castings reach 855 MPa yield, 1020 MPa tensile, 9 % elongation and 375 HB (40 HRC), with service to 980 °C; it is supplied as equiaxed castings, HIP plus heat-treated castings and a powder-metallurgy variant for disks. The high γ′ content makes it effectively non-weldable and very hard to machine, with machinability about 8 % of AISI 1212, so features are ground, EDMed or ECMed. MAR-M247 and Rene 80 are the nearest cast alternatives. IN-100 has a density of 7.75 g/cm³ (0.28 lb/in³), lighter than 97% of nickel alloy grades. It melts at 1,265°C (2,309 °F). IN-100 has a yield strength of 855 MPa (124 ksi) and a tensile strength of 1,020 MPa (148 ksi) — stronger than 90% of nickel alloy grades. Elongation at break is 9% and the elastic modulus is 215 GPa (31.2 Msi).
What is IN-100 used for?
- Gas turbine blades
- Turbine disks
- Aircraft engine hot-section parts
Advantages
- High strength — 855 MPa (124 ksi), better than 90% of nickel alloy grades
Limitations
- Low electrical conductivity — 1.2 % IACS, worse than 100% of nickel alloy grades
- Difficult to weld — 5/100, worse than 99% of nickel alloy grades
- Limited formability — 3/100, worse than 97% of nickel alloy grades
- Difficult to machine — 10/100, worse than 93% of nickel alloy grades
- High embodied carbon — 16 kg CO₂/kg, worse than 93% of nickel alloy grades
IN-100 properties
Typical room-temperature values for IN-100-HT; bars are the position among nickel alloy grades.
Physical3
IN-100 has a density of 7.75 g/cm³ (0.28 lb/in³), lighter than 97% of nickel alloy grades. It melts at 1,265°C (2,309 °F).
Mechanical15
IN-100 has a yield strength of 855 MPa (124 ksi) and a tensile strength of 1,020 MPa (148 ksi) — stronger than 90% of nickel alloy grades. Elongation at break is 9% and the elastic modulus is 215 GPa (31.2 Msi).
Thermal6
IN-100 is rated for continuous service to 980°C (1,796 °F). It conducts heat at 11 W/m·K (6.36 BTU/hr·ft·°F), worse than 60% of nickel alloy grades. Thermal expansion is 12.3 µm/m·K (6.83 µin/in·°F).
Electrical3
IN-100 conducts electricity at 1.2 % IACS, worse than 100% of nickel alloy grades.
Chemical & Environmental3
Corrosion resistance is good (58/100), worse than 91% of nickel alloy grades.
Sustainability4
Producing a kilogram of IN-100 takes about 225 MJ of energy and emits 16 kg of CO₂ — more than 87% of nickel alloy grades. Typical recycled content is 30%.
Manufacturability8
IN-100's machinability is not recommended (10/100, worse than 93% of nickel alloy grades); weldability not recommended (5/100); 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. IN-100 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with IN-100
Is IN-100 easy to machine?
Very difficult (≈8% of AISI 1212): use rigid setups, low speeds with ceramic/SiAlON or coated carbide, heavy flood coolant; grinding, EDM and ECM are the normal finishing routes for blade features.
Can IN-100 be welded?
Effectively non-weldable by fusion — 10 wt% Al+Ti causes strain-age and liquation cracking; repairs use pre-heated/controlled EB or laser cladding with ductile filler, or wide-gap brazing plus post-braze heat treatment.
Can IN-100 be formed, bent or molded?
Supplied as vacuum investment castings (equiaxed, optionally HIPed); the PM variant is consolidated by HIP/extrusion and isothermally forged in the superplastic regime — no cold forming.
IN-100 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 |
|---|---|---|
| C | 0.15 – 0.2 | 0.18 |
| Cr | 8 – 11 | 10 |
| Co | 13 – 17 | 15 |
| Mo | 2 – 4 | 3 |
| Alγ′ former | 5 – 6 | 5.5 |
| Tiγ′ former | 4.5 – 5 | 4.7 |
| V | 0.7 – 1.2 | 1 |
| Bgrain-boundary strengthener | 0.01 – 0.02 | 0.01 |
| Zr | 0.03 – 0.09 | 0.06 |
| Fe | ≤ 1 | |
| Mn | ≤ 0.2 | |
| Si | ≤ 0.2 | |
| S | ≤ 0.02 | |
| Nibalance ≈60% | balance |
What surface finishes work on IN-100?
Grit blast, chemical/abrasive-flow deburr, then diffusion aluminide, Pt-aluminide or MCrAlY overlay plus thermal barrier coating for gas-path service; 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 IN-100 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- N13100N13017
- Trade names
- Inconel 1005397
How much does IN-100 cost?
IN-100 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.
IN-100 — frequently asked
What is IN-100 used for?
IN-100 is typically used for gas turbine blades, turbine disks and aircraft engine hot-section parts. In short: high-strength cast superalloy; non-weldable turbine alloy; 980 °C service capability.
What is the yield strength of IN-100?
IN-100 has a typical yield strength of 855 MPa (124 ksi) and a tensile strength of 1,020 MPa (148 ksi) — stronger than 90% of nickel alloy grades. Strength varies by condition: see the 4 listed tempers.
Is IN-100 easy to machine?
Not especially — machinability is rated not recommended (10/100, worse than 93% of nickel alloy grades). Very difficult (≈8% of AISI 1212): use rigid setups, low speeds with ceramic/SiAlON or coated carbide, heavy flood coolant; grinding, EDM and ECM are the normal finishing routes for blade features.
Can IN-100 be welded?
Not readily — weldability is rated not recommended (5/100). Effectively non-weldable by fusion — 10 wt% Al+Ti causes strain-age and liquation cracking; repairs use pre-heated/controlled EB or laser cladding with ductile filler, or wide-gap brazing plus post-braze heat treatment.
What surface finishes work on IN-100?
Grit blast, chemical/abrasive-flow deburr, then diffusion aluminide, Pt-aluminide or MCrAlY overlay plus thermal barrier coating for gas-path service; no anodizing.
Can IN-100 be formed, bent or molded?
Supplied as vacuum investment castings (equiaxed, optionally HIPed); the PM variant is consolidated by HIP/extrusion and isothermally forged in the superplastic regime — no cold forming.
What is the maximum service temperature of IN-100?
IN-100 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 IN-100-HT and IN-100-PM?
HT is the default condition — standard fully heat-treated condition supplied for turbine blades and vanes — best balance of tensile, creep-rupture and structural stability. PM: wrought PM ('Gatorized') form for turbine disks — much higher yield strength and ductility than the cast alloy at sub-760 °C disk temperatures. Yield strength is 855 MPa in HT versus 1,050 MPa in PM.
How much does IN-100 cost?
IN-100 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 5397 — Nickel Alloy Castings, Investment, Corrosion and Heat Resistant (IN-100) — SAE International (2017)
- ASM Specialty Handbook: Heat-Resistant Materials / Superalloys Source Book — ASM International (1997)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels and High-Performance Alloys — ASM International (1990)
- Superalloys II (Sims, Stoloff, Hagel) — Wiley (1987)
- Machining Data Handbook, 3rd ed. — Metcut Research Associates (1980)
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.