Nickel Alloy IN-713C-F (As fabricated)
Temper · default condition
UNS N07713 · also Inconel 713C
Standard stock condition for turbocharger wheels and small blades; γ′ forms on cooling so as-cast strength is already high.
Values for the F condition
Other IN-713C tempers and conditions
IN-713C is listed in 4 conditions; see the grade overview at IN-713C.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
FDefaultThis page As fabricated | Standard stock condition for turbocharger wheels and small blades; γ′ forms on cooling so as-cast strength is already high. | 740 | 850 | 8 | 34 HRC | — |
Stress relieved | Choose when residual casting stresses or dendritic segregation must be reduced before machining of thin-wall parts. | 745 | 860 | 8 | 33 HRC | 1.3 % IACS |
Solution treated and aged | Use where a uniform, controlled γ′ size and best creep/rupture consistency are specified rather than the as-cast structure. | 780 | 900 | 6 | 36 HRC | 1.3 % IACS |
Hot isostatic pressed | Pick for fatigue-critical rotating parts: HIP closes interdendritic microporosity and markedly raises ductility and LCF life. | 780 | 910 | 10 | 35 HRC | 1.3 % IACS |
What is IN-713C-F?
IN-713C-F is IN-713C in the F temper — standard stock condition for turbocharger wheels and small blades; γ′ forms on cooling so as-cast strength is already high. IN-713C-F has a yield strength of 740 MPa (107 ksi) and a tensile strength of 850 MPa (123 ksi) — stronger than 82% of nickel alloy grades. Elongation at break is 8% and the elastic modulus is 205 GPa (29.7 Msi). IN-713C-F has a density of 7.91 g/cm³ (0.286 lb/in³), lighter than 89% of nickel alloy grades. It melts at 1,260°C (2,300 °F).
Advantages
- High strength — 740 MPa (107 ksi), better than 82% of nickel alloy grades
Limitations
- Limited formability — 3/100, worse than 97% of nickel alloy grades
- Difficult to weld — 10/100, worse than 94% of nickel alloy grades
- Difficult to machine — 10/100, worse than 93% of nickel alloy grades
- Low fracture toughness — 60 MPa·√m (54.6 ksi·√in), worse than 91% of nickel alloy grades
- Limited ductility — 8%, worse than 87% of nickel alloy grades
IN-713C-F properties
Typical room-temperature values for IN-713C-F; 10 are specific to this condition. Other listed values are IN-713C reference data and may not represent this condition. Bars are the position among nickel alloy grades.
Physical3
IN-713C-F has a density of 7.91 g/cm³ (0.286 lb/in³), lighter than 89% of nickel alloy grades. It melts at 1,260°C (2,300 °F).
Mechanical14
IN-713C-F has a yield strength of 740 MPa (107 ksi) and a tensile strength of 850 MPa (123 ksi) — stronger than 82% of nickel alloy grades. Elongation at break is 8% and the elastic modulus is 205 GPa (29.7 Msi).
Thermal6
IN-713C-F is rated for continuous service to 950°C (1,742 °F). It conducts heat at 10.9 W/m·K (6.3 BTU/hr·ft·°F), worse than 64% of nickel alloy grades. Thermal expansion is 10.6 µm/m·K (5.89 µin/in·°F).
Electrical3
IN-713C-F 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 IN-713C-F takes about 190 MJ of energy and emits 13.5 kg of CO₂ — more than 75% of nickel alloy grades. Typical recycled content is 35%.
Manufacturability8
IN-713C-F's machinability is not recommended (10/100, worse than 93% of nickel alloy grades); weldability not recommended (10/100); formability not recommended (3/100).
Common Calculations5
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with IN-713C-F
Is IN-713C easy to machine?
Very difficult: rigid setups, ceramic or whisker-reinforced/coated carbide tools, low speeds with heavy positive rake and flood coolant; grinding, EDM and ECM are common for blade/wheel features.
Can IN-713C be welded?
Effectively non-weldable by fusion (≈6 % Al + Ti causes strain-age and liquation cracking); repairs use vacuum brazing or specialized low-heat-input laser/EB cladding with pre-/post-heat.
Can IN-713C be formed, bent or molded?
Cast-only alloy — vacuum investment casting with excellent fluidity and low hot-tearing tendency; HIP after casting to close interdendritic porosity for rotating parts.
What surface finishes work on IN-713C?
Grit blast plus chemical/abrasive-flow cleaning; hot-corrosion protection by pack/CVD aluminide or MCrAlY plus optional TBC; not anodizable, electroplating rarely used.
IN-713C 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 |
|---|---|---|
| Clow-carbon variant IN-713LC: 0.03–0.07 | 0.08 – 0.2 | 0.12 |
| Cr | 12 – 14 | 12.5 |
| Mo | 3.8 – 5.2 | 4.2 |
| NbNb+Ta | 1.8 – 2.8 | 2 |
| Alγ′ former | 5.5 – 6.5 | 6 |
| Ti | 0.5 – 1 | 0.8 |
| Zr | 0.05 – 0.15 | 0.1 |
| Bgrain-boundary strengthener | 0.01 – 0.02 | 0.01 |
| Fe | ≤ 2.5 | — |
| Si | ≤ 0.5 | — |
| Mn | ≤ 0.25 | — |
| Coresidual, max | ≤ 1 | — |
| S | ≤ 0.02 | — |
| Ni≈74 % | balance | — |
IN-713C-F — frequently asked
What is IN-713C-F used for?
IN-713C-F is typically used for turbocharger turbine wheels, gas turbine blades and aerospace turbine vanes. In short: best-casting turbine superalloy; turbocharger wheel standard; cast only, non-weldable.
What is the yield strength of IN-713C-F?
IN-713C-F has a typical yield strength of 740 MPa (107 ksi) and a tensile strength of 850 MPa (123 ksi) — stronger than 82% of nickel alloy grades. Strength varies by condition: see the 4 listed tempers.
Is IN-713C-F easy to machine?
Not especially — machinability is rated not recommended (10/100, worse than 93% of nickel alloy grades). Very difficult: rigid setups, ceramic or whisker-reinforced/coated carbide tools, low speeds with heavy positive rake and flood coolant; grinding, EDM and ECM are common for blade/wheel features.
Can IN-713C-F be welded?
Not readily — weldability is rated not recommended (10/100). Effectively non-weldable by fusion (≈6 % Al + Ti causes strain-age and liquation cracking); repairs use vacuum brazing or specialized low-heat-input laser/EB cladding with pre-/post-heat.
What surface finishes work on IN-713C-F?
Grit blast plus chemical/abrasive-flow cleaning; hot-corrosion protection by pack/CVD aluminide or MCrAlY plus optional TBC; not anodizable, electroplating rarely used.
Can IN-713C-F be formed, bent or molded?
Cast-only alloy — vacuum investment casting with excellent fluidity and low hot-tearing tendency; HIP after casting to close interdendritic porosity for rotating parts.
What is the maximum service temperature of IN-713C-F?
IN-713C-F is rated for continuous use to about 950°C (1,742 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between IN-713C-F and IN-713C-STA?
F is the default condition — standard stock condition for turbocharger wheels and small blades; γ′ forms on cooling so as-cast strength is already high. STA: use where a uniform, controlled γ′ size and best creep/rupture consistency are specified rather than the as-cast structure. Yield strength is 740 MPa in F versus 780 MPa in STA.
Sources
- AMS 5391 — Nickel Alloy Castings, Investment, 73Ni-13Cr-4.5Mo-6Al-2Nb (IN-713C) — SAE International (2017)
- ASM Handbook Vol.1: Properties and Selection — Superalloys — ASM International (1990)
- Superalloys: A Technical Guide, 2nd ed. — ASM International (2002)
- ASM Specialty Handbook: Heat-Resistant Materials — ASM International (1997)
- Cast nickel superalloy grade data (IN-713C / IN-713LC) for turbocharger and turbine castings — investment casting foundries (2023)
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.