Nickel Alloy IN-100-PM (Powder metallurgy)
Finish state
UNS N13100, N13017 · also Inconel 100, 5397
Wrought PM ('Gatorized') form for turbine disks — much higher yield strength and ductility than the cast alloy at sub-760 °C disk temperatures.
Values for the PM condition
Other IN-100 tempers and conditions
IN-100 is listed in 4 conditions; see the grade overview at IN-100.
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 |
PMThis page 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-PM?
IN-100-PM is IN-100 supplied in the PM condition — wrought PM ('Gatorized') form for turbine disks — much higher yield strength and ductility than the cast alloy at sub-760 °C disk temperatures. IN-100-PM has a yield strength of 1,050 MPa (152 ksi) and a tensile strength of 1,500 MPa (218 ksi) — stronger than 97% of nickel alloy grades. Elongation at break is 18% and the elastic modulus is 215 GPa (31.2 Msi). IN-100-PM 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). HT is the default condition FabDigit quotes; PM is available on request or by drawing note.
Advantages
- High strength — 1,050 MPa (152 ksi), better than 97% 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
- High embodied carbon — 16 kg CO₂/kg, worse than 93% of nickel alloy grades
- Needs corrosion protection — 58/100, worse than 91% of nickel alloy grades
IN-100-PM properties
Typical room-temperature values for IN-100-PM; 10 are specific to this condition. Other listed values are IN-100 reference data and may not represent this condition. Bars are the position among nickel alloy grades.
Physical3
IN-100-PM 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-PM has a yield strength of 1,050 MPa (152 ksi) and a tensile strength of 1,500 MPa (218 ksi) — stronger than 97% of nickel alloy grades. Elongation at break is 18% and the elastic modulus is 215 GPa (31.2 Msi).
Thermal6
IN-100-PM is rated for continuous service to 760°C (1,400 °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-PM 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-PM 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-PM's machinability is not recommended (12/100, worse than 86% of nickel alloy grades); weldability not recommended (5/100); formability not recommended (3/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with IN-100-PM
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.
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.
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 | — |
IN-100-PM — frequently asked
What is IN-100-PM used for?
IN-100-PM 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-PM?
IN-100-PM has a typical yield strength of 1,050 MPa (152 ksi) and a tensile strength of 1,500 MPa (218 ksi) — stronger than 97% of nickel alloy grades. Strength varies by condition: see the 4 listed tempers.
Is IN-100-PM easy to machine?
Not especially — machinability is rated not recommended (12/100, worse than 86% 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-PM 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-PM?
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-PM 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-PM?
IN-100-PM is rated for continuous use to about 760°C (1,400 °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.
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. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.