Copper Alloy C95500-M02
Heat-treated state
UNS C95500 · ASTM B148 C95500 · EN CuAl10Ni5Fe4
M02 = as centrifugally cast
Choose for hollow cylindrical parts — denser, finer structure than sand cast gives slightly higher strength and hardness.
Values for the M02 condition
Other C95500 tempers and conditions
C95500 is listed in 4 conditions; see the grade overview at C95500.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
As CastDefault sand cast, no heat treatment | Default stock condition for propellers, pump/valve castings and bushings where strength ~700 MPa is sufficient. | 300 | 700 | 8 | 192 HB | 8.5 % IACS |
As continuous cast | Standard form for machined bearings, wear plates and gear blanks bought as continuous-cast bar or tube. | 310 | 700 | 10 | 195 HB | 8.5 % IACS |
M02This page As centrifugally cast | Choose for hollow cylindrical parts — denser, finer structure than sand cast gives slightly higher strength and hardness. | 315 | 725 | 10 | 200 HB | 8.5 % IACS |
Quench hardened and temper annealed | Pick when maximum strength/hardness and improved dealloying resistance are required, e.g. highly loaded gears, shafts and valve stems. | 415 | 760 | 8 | 22 HRC | 8 % IACS |
What is C95500-M02?
C95500-M02 is C95500 heat treated to M02 — choose for hollow cylindrical parts — denser, finer structure than sand cast gives slightly higher strength and hardness. C95500-M02 has a yield strength of 315 MPa (45.7 ksi) and a tensile strength of 725 MPa (105 ksi) — stronger than 67% of copper alloy grades. Elongation at break is 10% and the elastic modulus is 110 GPa (16 Msi). C95500-M02 has a density of 7.53 g/cm³ (0.272 lb/in³), lighter than 96% of copper alloy grades. It melts at 1,054°C (1,929 °F). As Cast is the default condition FabDigit quotes; M02 is available on request or by drawing note.
Advantages
- Lightweight — 7.53 g/cm³ (0.272 lb/in³), better than 96% of copper alloy grades
- Good corrosion resistance — 80/100, better than 96% of copper alloy grades
- High service temperature — 300°C (572 °F), better than 85% of copper alloy grades
- Readily welded — 60/100, better than 76% of copper alloy grades
Limitations
- Limited formability — 12/100, worse than 85% of copper alloy grades
- Poor heat conductor — 42 W/m·K (24.3 BTU/hr·ft·°F), worse than 80% of copper alloy grades
- Low electrical conductivity — 8.5 % IACS, worse than 79% of copper alloy grades
- Limited ductility — 10%, worse than 76% of copper alloy grades
C95500-M02 properties
Typical room-temperature values for C95500-M02; 21 are specific to this condition. Other listed values are C95500 reference data and may not represent this condition. Bars are the position among copper alloy grades.
Physical3
C95500-M02 has a density of 7.53 g/cm³ (0.272 lb/in³), lighter than 96% of copper alloy grades. It melts at 1,054°C (1,929 °F).
Mechanical13
C95500-M02 has a yield strength of 315 MPa (45.7 ksi) and a tensile strength of 725 MPa (105 ksi) — stronger than 67% of copper alloy grades. Elongation at break is 10% and the elastic modulus is 110 GPa (16 Msi).
Thermal6
C95500-M02 is rated for continuous service to 300°C (572 °F). It conducts heat at 42 W/m·K (24.3 BTU/hr·ft·°F), worse than 80% of copper alloy grades. Thermal expansion is 16.2 µm/m·K (9 µin/in·°F).
Electrical3
C95500-M02 conducts electricity at 8.5 % IACS, worse than 79% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is very good (80/100), better than 96% of copper alloy grades.
Sustainability4
Producing a kilogram of C95500-M02 takes about 60 MJ of energy and emits 4.2 kg of CO₂ — more than 69% of copper alloy grades. Typical recycled content is 40%.
Manufacturability8
C95500-M02's machinability is fair (40/100, better than 57% of copper alloy grades); weldability good (60/100); formability not recommended (12/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with C95500-M02
Is C95500 easy to machine?
Machines like a tough steel at ~50 % of AISI 1212 — use rigid setups, positive-rake carbide, moderate speed with heavy feed and flood coolant; avoid dwelling to prevent work hardening.
Can C95500 be welded?
Weldable by GTAW/GMAW with matching NiAl-bronze filler (ERCuNiAl); preheat 150–250 °C for heavy sections, control interpass temperature and avoid dilution with steel.
Can C95500 be formed, bent or molded?
Cast product — sand, centrifugal and continuous casting all standard; needs chilled/directional solidification and good feeding, cold forming not practical.
What surface finishes work on C95500?
Not anodizable; polish or shot-blast, pickle to remove alumina/oxide skin, and take a stable brown-green patina in seawater — plating requires activated pretreatment.
C95500 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 |
|---|---|---|
| Al | 10 – 11.5 | 10.7 |
| Fe | 3 – 5 | 4 |
| NiNi + Co | 3 – 5.5 | 4.5 |
| Mn | ≤ 3.5 | 0.5 |
| Siwhere specified | ≤ 0.1 | — |
| Cu78.0 % min per ASTM B148 | ≥ 78 (balance) | — |
C95500-M02 — frequently asked
What is C95500-M02 used for?
C95500-M02 is typically used for valve guides, aircraft bushings and gears. In short: premium marine propeller alloy.
What is the yield strength of C95500-M02?
C95500-M02 has a typical yield strength of 315 MPa (45.7 ksi) and a tensile strength of 725 MPa (105 ksi) — stronger than 67% of copper alloy grades. Strength varies by condition: see the 4 listed tempers.
Is C95500-M02 easy to machine?
Not especially — machinability is rated fair (40/100, better than 57% of copper alloy grades). Machines like a tough steel at ~50 % of AISI 1212 — use rigid setups, positive-rake carbide, moderate speed with heavy feed and flood coolant; avoid dwelling to prevent work hardening.
Can C95500-M02 be welded?
Yes — weldability is rated good (60/100). Weldable by GTAW/GMAW with matching NiAl-bronze filler (ERCuNiAl); preheat 150–250 °C for heavy sections, control interpass temperature and avoid dilution with steel.
What surface finishes work on C95500-M02?
Not anodizable; polish or shot-blast, pickle to remove alumina/oxide skin, and take a stable brown-green patina in seawater — plating requires activated pretreatment.
Can C95500-M02 be formed, bent or molded?
Cast product — sand, centrifugal and continuous casting all standard; needs chilled/directional solidification and good feeding, cold forming not practical.
What is the maximum service temperature of C95500-M02?
C95500-M02 is rated for continuous use to about 300°C (572 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between C95500 As Cast and C95500-TQ50?
As Cast is the default condition — default stock condition for propellers, pump/valve castings and bushings where strength ~700 MPa is sufficient. TQ50: pick when maximum strength/hardness and improved dealloying resistance are required, e.g. highly loaded gears, shafts and valve stems. Yield strength is 300 MPa in As Cast versus 415 MPa in TQ50.
Can FabDigit make parts in C95500-M02?
Yes — C95500-M02 is available for CNC machining; every part is priced by an engineer rather than instantly. Upload a STEP file to get a price and a DFM check.
Sources
- ASTM B148 — Standard Specification for Aluminum-Bronze Sand Castings — ASTM International (2019)
- ASTM B505/B505M — Copper Alloy Continuous Castings — ASTM International (2018)
- C95500 alloy datasheet — Copper Development Association (copper.org) (2023)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- DIN EN 1982 / CuAl10Ni5Fe4 (CC333G) cast copper alloys — CEN / DIN (2017)
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.