Nickel Alloy G-NiCr15
EN 2.4815
G-NiCr15 (2.4815) is a cast nickel-chromium alloy of the Alloy 600 composition type, used where moderate strength and oxidation resistance are needed up to 1050 °C.
Reference datasheet — G-NiCr15 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 F condition
G-NiCr15 tempers and conditions
G-NiCr15 is supplied in 4 conditions, soft to hard. F 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 |
|---|---|---|---|---|---|---|
Solution annealed | Choose when maximum ductility, homogenised carbide distribution and best corrosion/oxidation behaviour are needed before service or machining. | 220 | 460 | 30 | 135 HB | 1.7 % IACS |
Stress relieved | Used on welded or heavily machined castings to reduce distortion and residual stress before thermal cycling in service. | 235 | 470 | 25 | 145 HB | 1.6 % IACS |
FDefault As fabricated | Standard supply condition for furnace hardware, grids and fixtures where dimensional stability at temperature matters more than peak strength. | 250 | 480 | 22 | 150 HB | — |
Centrifugally cast | Pick for radiant tubes, rollers and rings where the denser, directionally solidified wall gives higher strength and soundness than static casting. | 270 | 520 | 25 | 160 HB | 1.6 % IACS |
What is G-NiCr15?
G-NiCr15 (2.4815) is a cast nickel-chromium alloy of the Alloy 600 composition type, used where moderate strength and oxidation resistance are needed up to 1050 °C. As-cast values are 250 MPa yield, 480 MPa tensile and 22 % elongation at 150 HB — the highest ductility in this cast Ni-Cr group — with a corrosion resistance score of 76; it is poured as sand, investment or centrifugal castings. It has no tungsten or carbide-forming additions, so creep strength and carburisation resistance are limited. Move to G-NiCr28W for carburising furnace atmospheres or service to 1150 °C. G-NiCr15 has a density of 8.4 g/cm³ (0.303 lb/in³), heavier than 57% of nickel alloy grades. It melts at 1,340°C (2,444 °F). G-NiCr15 has a yield strength of 250 MPa (36.3 ksi) and a tensile strength of 480 MPa (69.6 ksi) — weaker than 87% of nickel alloy grades. Elongation at break is 22% and the elastic modulus is 195 GPa (28.3 Msi).
What is G-NiCr15 used for?
- furnace muffles
- heating element supports
- resistor fittings
Advantages
- High service temperature — 1,050°C (1,922 °F), better than 83% of nickel alloy grades
- Conducts heat well — 14 W/m·K (8.09 BTU/hr·ft·°F), better than 77% of nickel alloy grades
Limitations
- Hard to polish — 55/100, worse than 95% of nickel alloy grades
- Low strength — 250 MPa (36.3 ksi), worse than 87% of nickel alloy grades
- Limited formability — 15/100, worse than 81% of nickel alloy grades
G-NiCr15 properties
Typical room-temperature values for G-NiCr15-F; bars are the position among nickel alloy grades.
Physical3
G-NiCr15 has a density of 8.4 g/cm³ (0.303 lb/in³), heavier than 57% of nickel alloy grades. It melts at 1,340°C (2,444 °F).
Mechanical14
G-NiCr15 has a yield strength of 250 MPa (36.3 ksi) and a tensile strength of 480 MPa (69.6 ksi) — weaker than 87% of nickel alloy grades. Elongation at break is 22% and the elastic modulus is 195 GPa (28.3 Msi).
Thermal6
G-NiCr15 is rated for continuous service to 1,050°C (1,922 °F). It conducts heat at 14 W/m·K (8.09 BTU/hr·ft·°F), better than 77% of nickel alloy grades. Thermal expansion is 13.3 µm/m·K (7.39 µin/in·°F).
Electrical3
G-NiCr15 conducts electricity at 1.6 % IACS, better than 70% of nickel alloy grades.
Chemical & Environmental3
Corrosion resistance is very good (76/100), worse than 59% of nickel alloy grades.
Sustainability4
Producing a kilogram of G-NiCr15 takes about 155 MJ of energy and emits 13 kg of CO₂ — less than 58% of nickel alloy grades. Typical recycled content is 45%.
Manufacturability8
G-NiCr15's machinability is poor (25/100, better than 76% of nickel alloy grades); weldability good (60/100); formability poor (15/100).
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. G-NiCr15 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with G-NiCr15
Is G-NiCr15 easy to machine?
Machine like Alloy 600 castings: rigid setup, sharp positive-rake carbide, low speed (15–30 m/min) with heavy constant feed and flood coolant to avoid work hardening and glazing.
Can G-NiCr15 be welded?
GTAW/SMAW with matching Ni-Cr or ERNiCr-3/ENiCrFe-3 filler; preheat is unnecessary but keep interpass low, minimise heat input and grind out casting skin to avoid porosity and hot cracking.
Can G-NiCr15 be formed, bent or molded?
Supplied as sand, investment or centrifugal castings; needs generous fillets, controlled Si for fluidity and adequate risering because of the long freezing range — not a cold-forming alloy.
G-NiCr15 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 |
|---|---|---|
| Crprovides oxidation and carburisation resistance | 14 – 17 | 15.5 |
| Fe | 5 – 10 | 8 |
| Chigher than wrought NiCr15Fe to aid castability | 0.05 – 0.2 | 0.12 |
| Siimproves fluidity and oxidation resistance | 0.5 – 2 | 1.2 |
| Mn | ≤ 1.5 | 0.7 |
| Cu | ≤ 0.5 | 0.1 |
| S | ≤ 0.02 | 0.01 |
| P | ≤ 0.03 | 0.01 |
| Nitypically ≥ 72 % | balance |
What surface finishes work on G-NiCr15?
Grit blast and pickle to remove casting scale, then passivate; anodising does not apply, aluminising or ceramic wash coats can extend life above 1000 °C.
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 G-NiCr15 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- 2.4815
How much does G-NiCr15 cost?
G-NiCr15 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.
G-NiCr15 — frequently asked
What is G-NiCr15 used for?
G-NiCr15 is typically used for furnace muffles, heating element supports and resistor fittings. In short: most ductile cast Ni-Cr; best-machining of the family; furnace hardware standard.
What is the yield strength of G-NiCr15?
G-NiCr15 has a typical yield strength of 250 MPa (36.3 ksi) and a tensile strength of 480 MPa (69.6 ksi) — weaker than 87% of nickel alloy grades. Strength varies by condition: see the 4 listed tempers.
Is G-NiCr15 easy to machine?
Not especially — machinability is rated poor (25/100, better than 76% of nickel alloy grades). Machine like Alloy 600 castings: rigid setup, sharp positive-rake carbide, low speed (15–30 m/min) with heavy constant feed and flood coolant to avoid work hardening and glazing.
Can G-NiCr15 be welded?
Yes — weldability is rated good (60/100). GTAW/SMAW with matching Ni-Cr or ERNiCr-3/ENiCrFe-3 filler; preheat is unnecessary but keep interpass low, minimise heat input and grind out casting skin to avoid porosity and hot cracking.
What surface finishes work on G-NiCr15?
Grit blast and pickle to remove casting scale, then passivate; anodising does not apply, aluminising or ceramic wash coats can extend life above 1000 °C.
Can G-NiCr15 be formed, bent or molded?
Supplied as sand, investment or centrifugal castings; needs generous fillets, controlled Si for fluidity and adequate risering because of the long freezing range — not a cold-forming alloy.
What is the maximum service temperature of G-NiCr15?
G-NiCr15 is rated for continuous use to about 1,050°C (1,922 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between G-NiCr15-F and G-NiCr15-SA?
F is the default condition — standard supply condition for furnace hardware, grids and fixtures where dimensional stability at temperature matters more than peak strength. SA: choose when maximum ductility, homogenised carbide distribution and best corrosion/oxidation behaviour are needed before service or machining. Yield strength is 250 MPa in F versus 220 MPa in SA.
How much does G-NiCr15 cost?
G-NiCr15 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
- DIN 17745 — Wrought and cast nickel-chromium materials, material No. 2.4815 — DIN (2002)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- ASM Handbook Vol. 13B — Corrosion: Materials (High-temperature nickel alloys) — ASM International (2005)
- ASM Handbook Vol. 15 — Casting (Nickel-alloy foundry practice) — ASM International (2008)
- Heat-resistant Ni-Cr furnace casting alloy datasheets — Various foundries (EU/CN) (2023)
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.