Copper Alloy CC480K
EN CC480K
CC480K (CuSn10-C, equivalent to C90700 and ZCuSn10Pb1) is a classic 10 % tin cast bronze from the C90000–C95999 family, strengthened by the tin-rich matrix rather than by heat treatment.
Reference datasheet — CC480K 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 GC condition
CC480K tempers and conditions
CC480K is supplied in 5 conditions, soft to hard. GC 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 |
|---|---|---|---|---|---|---|
Sand cast | Choose for one-off or large complex housings, valve bodies and worm wheels where section thickness varies. | 150 | 290 | 10 | 85 HB | 11.5 % IACS |
Investment / precision cast | Choose for small, thin-walled or intricate near-net-shape parts where machining allowance must be minimal. | 160 | 295 | 8 | 88 HB | 12 % IACS |
Permanent (chill/gravity die) cast | Choose for medium-volume small parts where a finer, denser chill structure and closer dimensions are wanted. | 165 | 300 | 7 | 90 HB | 12 % IACS |
Centrifugal cast | Choose for large-diameter bushings, sleeves and worm-wheel rims needing dense, inclusion-free wall sections. | 170 | 310 | 10 | 90 HB | 12 % IACS |
GCDefault Continuous cast bar / tube | Default stock form: continuous-cast rounds, hollows and tubes for machined bearings, bushings and gear blanks — highest strength and best soundness. | 190 | 330 | 8 | 95 HB | — |
What is CC480K?
CC480K (CuSn10-C, equivalent to C90700 and ZCuSn10Pb1) is a classic 10 % tin cast bronze from the C90000–C95999 family, strengthened by the tin-rich matrix rather than by heat treatment. It is specified for heavily loaded sliding parts and pressure-tight castings, offering 330 MPa tensile, 190 MPa yield, 8 % elongation, 95 HB and service to 250 °C. Sand, continuous, centrifugal and permanent-mold castings are all available. Limits are low elongation, a machinability rating of 45 with stringy chips, poor fusion weldability and a wide freezing range that demands careful feeding; for higher strength choose cast aluminum bronze CC331G. CC480K has a density of 8.8 g/cm³ (0.318 lb/in³), heavier than 58% of copper alloy grades. It melts at 830°C (1,526 °F). CC480K has a yield strength of 190 MPa (27.6 ksi) and a tensile strength of 330 MPa (47.9 ksi) — weaker than 57% of copper alloy grades. Elongation at break is 8% and the elastic modulus is 103 GPa (14.9 Msi).
What is CC480K used for?
- worm gears
- heavy-duty bushings
- bearings
- pressure-tight valve bodies
Limitations
- Limited formability — 5/100, worse than 98% of copper alloy grades
- Limited ductility — 8%, worse than 83% of copper alloy grades
- Difficult to weld — 25/100, worse than 78% of copper alloy grades
CC480K properties
Typical room-temperature values for CC480K-GC; bars are the position among copper alloy grades.
Physical3
CC480K has a density of 8.8 g/cm³ (0.318 lb/in³), heavier than 58% of copper alloy grades. It melts at 830°C (1,526 °F).
Mechanical13
CC480K has a yield strength of 190 MPa (27.6 ksi) and a tensile strength of 330 MPa (47.9 ksi) — weaker than 57% of copper alloy grades. Elongation at break is 8% and the elastic modulus is 103 GPa (14.9 Msi).
Thermal6
CC480K is rated for continuous service to 250°C (482 °F). It conducts heat at 60 W/m·K (34.7 BTU/hr·ft·°F), worse than 59% of copper alloy grades. Thermal expansion is 18.5 µm/m·K (10.3 µin/in·°F).
Electrical3
CC480K conducts electricity at 12 % IACS, worse than 62% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is very good (70/100), better than 76% of copper alloy grades.
Sustainability4
Producing a kilogram of CC480K takes about 60 MJ of energy and emits 4.2 kg of CO₂ — more than 69% of copper alloy grades. Typical recycled content is 60%.
Manufacturability8
CC480K's machinability is fair (45/100, better than 64% of copper 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 copper alloy family
Yield strength against density for every copper alloy grade FabDigit runs. CC480K is highlighted; hover a dot for its name, or open the interactive family chart.
Working with CC480K
Is CC480K easy to machine?
Machines cleanly but with tough, stringy chips (≈20–30 % of AISI 1212); use sharp positive-rake carbide, moderate speed, generous feed and light coolant to avoid smearing the soft matrix.
Can CC480K be welded?
Poor fusion weldability — hot-short and tin-oxide prone; repair by braze welding or TIG with matching Cu-Sn/phosphor-bronze filler and 150–250 °C preheat, then stress relieve.
Can CC480K be formed, bent or molded?
Cast-only alloy: wide freezing range needs chills, generous risers and directional solidification to avoid interdendritic shrink; no cold forming, hot working not practiced.
CC480K 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 |
|---|---|---|
| Snprincipal solid-solution/δ-phase former | 9 – 11 | 10 |
| Pdeoxidiser residual; higher P grades are CuSn11P-C | ≤ 0.05 | 0.03 |
| Pb | ≤ 0.25 | 0.1 |
| Zn | ≤ 0.5 | 0.2 |
| Ni | ≤ 2 | 0.3 |
| Fe | ≤ 0.2 | 0.1 |
| Sb | ≤ 0.3 | 0.1 |
| Mn | ≤ 0.2 | 0.05 |
| S | ≤ 0.05 | 0.02 |
| Alkept very low to avoid dross/oxide films | ≤ 0.01 | 0.01 |
| Si | ≤ 0.01 | 0.01 |
| Curemainder, nominally 88–90 % | balance |
What surface finishes work on CC480K?
Not anodizable; take a good mechanical polish, accepts tin, nickel or chrome plating, and can be chemically patinated or lacquered for architectural work.
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 CC480K in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- CuSn10-C
- Similar grades
- C90700ZCuSn10Pb1
How much does CC480K cost?
CC480K 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.
CC480K — frequently asked
What is CC480K used for?
CC480K is typically used for worm gears, heavy-duty bushings, bearings and pressure-tight valve bodies. In short: classic high-tin bearing bronze; good pressure tightness; poor fusion weldability.
What is the yield strength of CC480K?
CC480K has a typical yield strength of 190 MPa (27.6 ksi) and a tensile strength of 330 MPa (47.9 ksi) — weaker than 57% of copper alloy grades. Strength varies by condition: see the 5 listed tempers.
Is CC480K easy to machine?
Reasonably — machinability is rated fair (45/100, better than 64% of copper alloy grades). Machines cleanly but with tough, stringy chips (≈20–30 % of AISI 1212); use sharp positive-rake carbide, moderate speed, generous feed and light coolant to avoid smearing the soft matrix.
Can CC480K be welded?
Not readily — weldability is rated poor (25/100). Poor fusion weldability — hot-short and tin-oxide prone; repair by braze welding or TIG with matching Cu-Sn/phosphor-bronze filler and 150–250 °C preheat, then stress relieve.
What surface finishes work on CC480K?
Not anodizable; take a good mechanical polish, accepts tin, nickel or chrome plating, and can be chemically patinated or lacquered for architectural work.
Can CC480K be formed, bent or molded?
Cast-only alloy: wide freezing range needs chills, generous risers and directional solidification to avoid interdendritic shrink; no cold forming, hot working not practiced.
What is the maximum service temperature of CC480K?
CC480K is rated for continuous use to about 250°C (482 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between CC480K-GC and CC480K-GS?
GC is the default condition — default stock form: continuous-cast rounds, hollows and tubes for machined bearings, bushings and gear blanks — highest strength and best soundness. GS: choose for one-off or large complex housings, valve bodies and worm wheels where section thickness varies. Yield strength is 190 MPa in GC versus 150 MPa in GS.
How much does CC480K cost?
CC480K 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
- EN 1982 — Copper and copper alloys: ingots and castings (CuSn10-C / CC480K) — CEN (2017)
- ASTM B505/B505M — Copper alloy continuous castings (C90700) — ASTM (2018)
- CDA alloy datasheet C90700 — Copper Development Association (2023)
- ASM Handbook Vol.2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- ASM Handbook Vol.13B — Corrosion: Materials (copper alloys) — ASM International (2005)
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.