Copper Alloy C82510
UNS C82510 · ASTM B824
C82510 is a silicon-modified version of C82500 cast beryllium copper to ASTM B824, with the silicon addition improving fluidity and castability.
Reference datasheet — C82510 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 TF00 condition
C82510 tempers and conditions
C82510 is supplied in 5 conditions, soft to hard. TF00 is the default FabDigit quotes; the values on this page are for it.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Solution heat treated | Softest, most ductile condition — pick it for heavy machining, straightening or welding before ageing. | 205 | 450 | 30 | 140 HB | 17 % IACS |
As sand cast | Untreated sand-cast condition; use only as a stock condition before solution treating and ageing. | 275 | 515 | 15 | 170 HB | 18 % IACS |
As centrifugally cast | Centrifugal-cast bushings/rings in the untreated state, normally heat treated afterwards. | 290 | 530 | 15 | 180 HB | 18 % IACS |
As pressure die cast | Continuous-cast bar/tube stock, dense and low-porosity, supplied for subsequent heat treatment. | 300 | 550 | 14 | 190 HB | 18 % IACS |
TF00Default Solution heat treated and precipitation hardened | Standard service condition: maximum strength and hardness with ~20 % IACS conductivity for mould inserts, tooling and non-sparking parts. | 1,035 | 1,105 | 1 | 43 HRC | 20 % IACS |
What is C82510?
C82510 is a silicon-modified version of C82500 cast beryllium copper to ASTM B824, with the silicon addition improving fluidity and castability. After solution treatment and ageing it reaches 1035 MPa yield, 1105 MPa tensile, 400 HB (43 HRC) and 105 W/m·K with 20% IACS, so it is used where a casting must combine high hardness, wear resistance and heat extraction, such as mould and die inserts. Elongation is only 1%, service is limited to about 220 °C, machinability is rated 35, and beryllium dust and fume require controlled handling. C82100 is the lower-strength, higher-conductivity alternative in the same family. C82510 has a density of 8.26 g/cm³ (0.298 lb/in³), lighter than 83% of copper alloy grades. It melts at 866°C (1,591 °F). C82510 has a yield strength of 1,035 MPa (150 ksi) and a tensile strength of 1,105 MPa (160 ksi) — stronger than 100% of copper alloy grades. Elongation at break is 1% and the elastic modulus is 131 GPa (19 Msi).
What is C82510 used for?
- Mold and die inserts
- Wear-resistant bushings
- Non-sparking tool castings
Advantages
- High strength — 1,035 MPa (150 ksi), better than 100% of copper alloy grades
- Stiff — 131 GPa (19 Msi), better than 91% of copper alloy grades
Limitations
- Limited ductility — 1%, worse than 99% of copper alloy grades
- High embodied carbon — 11 kg CO₂/kg, worse than 99% of copper alloy grades
- Limited formability — 10/100, worse than 89% of copper alloy grades
C82510 properties
Typical room-temperature values for C82510-TF00; bars are the position among copper alloy grades.
Physical3
C82510 has a density of 8.26 g/cm³ (0.298 lb/in³), lighter than 83% of copper alloy grades. It melts at 866°C (1,591 °F).
Mechanical13
C82510 has a yield strength of 1,035 MPa (150 ksi) and a tensile strength of 1,105 MPa (160 ksi) — stronger than 100% of copper alloy grades. Elongation at break is 1% and the elastic modulus is 131 GPa (19 Msi).
Thermal5
C82510 is rated for continuous service to 220°C (428 °F). It conducts heat at 105 W/m·K (60.7 BTU/hr·ft·°F), better than 56% of copper alloy grades. Thermal expansion is 17 µm/m·K (9.44 µin/in·°F).
Electrical3
C82510 conducts electricity at 20 % IACS, better than 52% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is good (62/100), worse than 57% of copper alloy grades.
Sustainability4
Producing a kilogram of C82510 takes about 160 MJ of energy and emits 11 kg of CO₂ — more than 100% of copper alloy grades. Typical recycled content is 35%.
Manufacturability8
C82510's machinability is fair (35/100, better than 51% of copper alloy grades); weldability fair (40/100); formability not recommended (10/100).
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 copper alloy family
Yield strength against density for every copper alloy grade FabDigit runs. C82510 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with C82510
Is C82510 easy to machine?
Rough machine in TB00 and finish after ageing; use sharp carbide tools, positive rake, flood coolant and HEPA-filtered extraction — beryllium-bearing dust and fume require controlled handling.
Can C82510 be welded?
GTAW/EB/laser repair welding is possible with matching BeCu filler in the solution-treated state; re-solution treat and re-age to restore properties, and never grind or weld without local exhaust.
Can C82510 be formed, bent or molded?
Foundry alloy only: pour at ~1050–1100 °C in sand, centrifugal, investment or continuous casting; the silicon addition improves fluidity and reduces misruns compared with C82500.
C82510 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 |
|---|---|---|
| Beprimary hardening element | 1.9 – 2.15 | 2 |
| Cograin refiner, raises Co+Ni+Fe total vs C82500 | 0.9 – 1.1 | 1 |
| Siimproves casting fluidity | 0.2 – 0.35 | 0.25 |
| Al | ≤ 0.15 | |
| Fe | ≤ 0.2 | |
| Curemainder, ≈96.5 % | balance |
What surface finishes work on C82510?
Takes a mirror polish in the hardened state; electroless nickel or hard chrome plating is common for mould inserts, and no anodising is applicable.
Surface treatments FabDigit runs on copper 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).
Equivalent designations
Standards and trade names that resolve to Copper Alloy C82510 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- ASTM
- B824
How much does C82510 cost?
C82510 is a high-cost copper 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.
C82510 — frequently asked
What is C82510 used for?
C82510 is typically used for mold and die inserts, wear-resistant bushings and non-sparking tool castings. In short: hardest cast BeCu; improved-castability C82500 variant; 400 HB with 105 W/m·K.
What is the yield strength of C82510?
C82510 has a typical yield strength of 1,035 MPa (150 ksi) and a tensile strength of 1,105 MPa (160 ksi) — stronger than 100% of copper alloy grades. Strength varies by condition: see the 5 listed tempers.
Is C82510 easy to machine?
Not especially — machinability is rated fair (35/100, better than 51% of copper alloy grades). Rough machine in TB00 and finish after ageing; use sharp carbide tools, positive rake, flood coolant and HEPA-filtered extraction — beryllium-bearing dust and fume require controlled handling.
Can C82510 be welded?
With care — weldability is rated fair (40/100). GTAW/EB/laser repair welding is possible with matching BeCu filler in the solution-treated state; re-solution treat and re-age to restore properties, and never grind or weld without local exhaust.
What surface finishes work on C82510?
Takes a mirror polish in the hardened state; electroless nickel or hard chrome plating is common for mould inserts, and no anodising is applicable.
Can C82510 be formed, bent or molded?
Foundry alloy only: pour at ~1050–1100 °C in sand, centrifugal, investment or continuous casting; the silicon addition improves fluidity and reduces misruns compared with C82500.
What is the maximum service temperature of C82510?
C82510 is rated for continuous use to about 220°C (428 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between C82510-TF00 and C82510-TB00?
TF00 is the default condition — standard service condition: maximum strength and hardness with ~20 % IACS conductivity for mould inserts, tooling and non-sparking parts. TB00: softest, most ductile condition — pick it for heavy machining, straightening or welding before ageing. Yield strength is 1,035 MPa in TF00 versus 205 MPa in TB00.
How much does C82510 cost?
C82510 is a high-cost copper 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
- ASTM B824 — Standard Specification for General Requirements for Copper Alloy Castings — ASTM International (2022)
- ASTM B770 — Copper-Beryllium Alloy Sand Castings for General Applications — ASTM International (2019)
- CDA/UNS alloy datasheet C82510 — Copper Development Association (copper.org) (2023)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- Cast beryllium copper mould alloy technical data — Materion Brush Performance Alloys (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.