Nickel Alloy GX50NiCrCoW35-25-15-5
EN 1.4869
GX50NiCrCoW35-25-15-5 (1.4869) is a high-carbon cast Ni-Cr-Co-W heat-resistant alloy supplied as static, centrifugal, sand or investment castings in as-cast and stress-relieved conditions.
Reference datasheet — GX50NiCrCoW35-25-15-5 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 AC condition
GX50NiCrCoW35-25-15-5 tempers and conditions
GX50NiCrCoW35-25-15-5 is supplied in 2 conditions, soft to hard. AC is the default FabDigit quotes; the values on this page are for it.
Compare all 2 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Stress relieved | Optional post-casting or post-weld anneal (typically ~1050–1150 °C, air cool) to relieve casting/welding stresses in large fabricated furnace assemblies. | 270 | 470 | 8 | 195 HB | 1.8 % IACS |
ACDefault Spheroidize annealed | Default supply condition for shaped furnace fittings, trays, muffles and hangers — used as-cast without heat treatment. | 290 | 490 | 5 | 205 HB | — |
Supply forms, finishes and certifications
Ways GX50NiCrCoW35-25-15-5 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
CC | Centrifugally cast | Surface finish |
What is GX50NiCrCoW35-25-15-5?
GX50NiCrCoW35-25-15-5 (1.4869) is a high-carbon cast Ni-Cr-Co-W heat-resistant alloy supplied as static, centrifugal, sand or investment castings in as-cast and stress-relieved conditions. The cobalt and tungsten additions with a carbide network give scaling and creep resistance for furnace hardware working above 1100 °C, with a maximum service temperature of 1200 °C. Ductility is low at 5 % elongation, machinability is rated 15 and weldability is rated 25, so parts are designed as castings with generous fillets. Where carburisation resistance matters more than peak temperature, GX40NiCrNb45-35 is the alternative. GX50NiCrCoW35-25-15-5 has a density of 8 g/cm³ (0.289 lb/in³), lighter than 85% of nickel alloy grades. It melts at 1,310°C (2,390 °F). GX50NiCrCoW35-25-15-5 has a yield strength of 290 MPa (42.1 ksi) and a tensile strength of 490 MPa (71.1 ksi) — weaker than 81% of nickel alloy grades. Elongation at break is 5% and the elastic modulus is 185 GPa (26.8 Msi).
What is GX50NiCrCoW35-25-15-5 used for?
- furnace grates and grate bars
- kiln fittings
- heat-treatment fixtures
- radiant tube supports
Advantages
- High service temperature — 1,200°C (2,192 °F), better than 99% of nickel alloy grades
- High electrical conductivity — 1.7 % IACS, better than 76% of nickel alloy grades
Limitations
- Hard to polish — 45/100, worse than 99% of nickel alloy grades
- Limited ductility — 5%, worse than 93% of nickel alloy grades
- Limited formability — 5/100, worse than 91% of nickel alloy grades
- Difficult to weld — 25/100, worse than 82% of nickel alloy grades
- Low strength — 290 MPa (42.1 ksi), worse than 81% of nickel alloy grades
GX50NiCrCoW35-25-15-5 properties
Typical room-temperature values for GX50NiCrCoW35-25-15-5-AC; bars are the position among nickel alloy grades.
Physical3
GX50NiCrCoW35-25-15-5 has a density of 8 g/cm³ (0.289 lb/in³), lighter than 85% of nickel alloy grades. It melts at 1,310°C (2,390 °F).
Mechanical14
GX50NiCrCoW35-25-15-5 has a yield strength of 290 MPa (42.1 ksi) and a tensile strength of 490 MPa (71.1 ksi) — weaker than 81% of nickel alloy grades. Elongation at break is 5% and the elastic modulus is 185 GPa (26.8 Msi).
Thermal6
GX50NiCrCoW35-25-15-5 is rated for continuous service to 1,200°C (2,192 °F). It conducts heat at 12.5 W/m·K (7.22 BTU/hr·ft·°F), better than 69% of nickel alloy grades. Thermal expansion is 15.5 µm/m·K (8.61 µin/in·°F).
Electrical3
GX50NiCrCoW35-25-15-5 conducts electricity at 1.7 % IACS, better than 76% of nickel alloy grades.
Chemical & Environmental3
Corrosion resistance is very good (72/100), worse than 71% of nickel alloy grades.
Sustainability4
Producing a kilogram of GX50NiCrCoW35-25-15-5 takes about 145 MJ of energy and emits 11.5 kg of CO₂ — less than 77% of nickel alloy grades. Typical recycled content is 50%.
Manufacturability8
GX50NiCrCoW35-25-15-5's machinability is poor (15/100, worse than 76% of nickel alloy grades); weldability poor (25/100); formability not recommended (5/100).
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. GX50NiCrCoW35-25-15-5 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with GX50NiCrCoW35-25-15-5
Is GX50NiCrCoW35-25-15-5 easy to machine?
Very difficult: rigid setups, negative-rake carbide or ceramic inserts, low speed with heavy positive feed, flood coolant; grinding is often preferred for finish surfaces.
Can GX50NiCrCoW35-25-15-5 be welded?
Weld only with preheat 200–300 °C, low heat input and matching Ni-Cr-Co-W or 25-35 Nb filler; high carbon makes it hot-crack sensitive, and re-weld of long-serviced parts usually needs solution annealing first.
Can GX50NiCrCoW35-25-15-5 be formed, bent or molded?
Cast-only alloy — sand/investment casting for shaped fittings, centrifugal casting for tubes; use generous fillets, controlled section changes and slow cooling to avoid hot tears.
GX50NiCrCoW35-25-15-5 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 |
|---|---|---|
| Chigh C for carbide strengthening / creep resistance | 0.4 – 0.6 | 0.5 |
| Siaids scaling resistance and casting fluidity | ≤ 2 | 1.2 |
| Mn | ≤ 2 | 1 |
| Cr | 24 – 26 | 25 |
| Ni | 33 – 37 | 35 |
| Co | 14 – 16 | 15 |
| Wsolid-solution and carbide strengthener | 4 – 6 | 5 |
| P | ≤ 0.04 | |
| S | ≤ 0.03 | |
| Febalance, ≈17–20 % | balance |
What surface finishes work on GX50NiCrCoW35-25-15-5?
Normally supplied shot-blasted or pickled with the as-cast scale removed; no anodising or decorative plating — a protective Cr₂O₃ scale forms in service and should not be removed between campaigns.
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 GX50NiCrCoW35-25-15-5 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- 1.4869
How much does GX50NiCrCoW35-25-15-5 cost?
GX50NiCrCoW35-25-15-5 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.
GX50NiCrCoW35-25-15-5 — frequently asked
What is GX50NiCrCoW35-25-15-5 used for?
GX50NiCrCoW35-25-15-5 is typically used for furnace grates and grate bars, kiln fittings, heat-treatment fixtures and radiant tube supports. In short: 1200 °C cast heat-resistant grade; co and W strengthened; cast-only, low ductility.
What is the yield strength of GX50NiCrCoW35-25-15-5?
GX50NiCrCoW35-25-15-5 has a typical yield strength of 290 MPa (42.1 ksi) and a tensile strength of 490 MPa (71.1 ksi) — weaker than 81% of nickel alloy grades. Strength varies by condition: see the 2 listed tempers.
Is GX50NiCrCoW35-25-15-5 easy to machine?
Not especially — machinability is rated poor (15/100, worse than 76% of nickel alloy grades). Very difficult: rigid setups, negative-rake carbide or ceramic inserts, low speed with heavy positive feed, flood coolant; grinding is often preferred for finish surfaces.
Can GX50NiCrCoW35-25-15-5 be welded?
Not readily — weldability is rated poor (25/100). Weld only with preheat 200–300 °C, low heat input and matching Ni-Cr-Co-W or 25-35 Nb filler; high carbon makes it hot-crack sensitive, and re-weld of long-serviced parts usually needs solution annealing first.
What surface finishes work on GX50NiCrCoW35-25-15-5?
Normally supplied shot-blasted or pickled with the as-cast scale removed; no anodising or decorative plating — a protective Cr₂O₃ scale forms in service and should not be removed between campaigns.
Can GX50NiCrCoW35-25-15-5 be formed, bent or molded?
Cast-only alloy — sand/investment casting for shaped fittings, centrifugal casting for tubes; use generous fillets, controlled section changes and slow cooling to avoid hot tears.
What is the maximum service temperature of GX50NiCrCoW35-25-15-5?
GX50NiCrCoW35-25-15-5 is rated for continuous use to about 1,200°C (2,192 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between GX50NiCrCoW35-25-15-5-AC and GX50NiCrCoW35-25-15-5-SR?
AC is the default condition — default supply condition for shaped furnace fittings, trays, muffles and hangers — used as-cast without heat treatment. SR: optional post-casting or post-weld anneal (typically ~1050–1150 °C, air cool) to relieve casting/welding stresses in large fabricated furnace assemblies. Yield strength is 290 MPa in AC versus 270 MPa in SR.
How much does GX50NiCrCoW35-25-15-5 cost?
GX50NiCrCoW35-25-15-5 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
- EN 10295 — Heat resistant steel castings — CEN (2002)
- ASM Handbook Vol. 1 — Properties and Selection: Irons, Steels and High-Performance Alloys (heat-resistant castings) — ASM International (1990)
- Heat-resistant cast alloys for furnace fittings and radiant tubes — Cronite / Wolfensberger-type foundry datasheets (2022)
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.