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Copper Alloy C95400 · finish state

Copper Alloy C95400 Cont Cast

Properties of the Cont Cast condition, compared with the other C95400 tempers.

Choose for machined bushings and sleeves cut from bar/tube stock: finer, denser structure than sand cast with slightly higher strength and better machined-surface quality.

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Request a quote in C95400 Cont CastC95400 overview

What is C95400 Cont Cast?

C95400 Cont Cast is C95400 supplied in the Cont Cast condition — choose for machined bushings and sleeves cut from bar/tube stock: finer, denser structure than sand cast with slightly higher strength and better machined-surface quality. C95400 Cont Cast has a yield strength of 262 MPa (38 ksi) and a tensile strength of 620 MPa (89.9 ksi) — stronger than 56% of copper alloy grades. Elongation at break is 12% and the elastic modulus is 110 GPa (16 Msi). C95400 Cont Cast has a density of 7.45 g/cm³ (0.269 lb/in³), lighter than 99% of copper alloy grades. It melts at 1,038°C (1,900 °F). As Cast is the default condition FabDigit quotes; Cont Cast is available on request or by drawing note.

Advantages

  • Lightweight — 7.45 g/cm³ (0.269 lb/in³), better than 99% of copper alloy grades
  • Good corrosion resistance — 74/100, better than 88% of copper alloy grades
  • High service temperature — 300°C (572 °F), better than 84% of copper alloy grades
  • Readily welded — 60/100, better than 75% of copper alloy grades

C95400 Cont Cast properties

Typical room-temperature values for C95400 Cont Cast — 8 properties are specific to this condition; the rest are grade-level values shared by every C95400 temper. Each bar shows where the value sits among the copper alloy grades in FabDigit's library — further right is higher.

Physical3

C95400 Cont Cast has a density of 7.45 g/cm³ (0.269 lb/in³), lighter than 99% of copper alloy grades. It melts at 1,038°C (1,900 °F).

Density7.45 g/cm³0.27 lb/in³
Melting Point (Solidus)1,038°C1,900 °F
Liquidus Temperature1,054°C1,929 °F

Mechanical12

C95400 Cont Cast has a yield strength of 262 MPa (38 ksi) and a tensile strength of 620 MPa (89.9 ksi) — stronger than 56% of copper alloy grades. Elongation at break is 12% and the elastic modulus is 110 GPa (16 Msi).

Elastic (Young's) Modulus110 GPa16 Msi
Shear Modulus42 GPa6.1 Msi
Bulk Modulus105 GPa15.2 Msi
Poisson's Ratio0.32
Tensile Strength (Ultimate)620 MPa89.9 ksi
Yield Strength (0.2% offset)262 MPa38 ksi
Elongation at Break12%
Shear Strength380 MPa55.1 ksi
Fatigue Strength (Endurance Limit)200 MPa29 ksi
Charpy V-Notch Impact (RT)20 J14.8 ft·lbf
Hardness, Brinell175 HB
Hardness, Rockwell B87 HRB

Thermal6

C95400 Cont Cast is rated for continuous service to 300°C (572 °F). It conducts heat at 58.6 W/m·K (33.9 BTU/hr·ft·°F), worse than 63% of copper alloy grades. Thermal expansion is 16.2 µm/m·K (9 µin/in·°F).

Thermal Conductivity58.6 W/m·K33.9 BTU/hr·ft·°F
Specific Heat Capacity418 J/kg·K0.1 BTU/lb·°F
Thermal Expansion (CTE, 20–100 °C)16.2 µm/m·K9 µin/in·°F
Latent Heat of Fusion220 J/g94.6 BTU/lb
Max Service Temperature (continuous)300°C572 °F
Min Service Temperature-196°C-321 °F

Electrical3

C95400 Cont Cast conducts electricity at 13 % IACS, worse than 58% of copper alloy grades.

Electrical Conductivity13 % IACS
Electrical Resistivity1.33×10⁻⁷ Ω·m5.24 µΩ·in
Magnetic Responseweakly magnetic — the iron-rich κ phases give a slight ferromagnetic response; not usable where full non-magnetic behaviour is required

Chemical & Environmental3

Corrosion resistance is very good (74/100), better than 88% of copper alloy grades.

Galvanic Potential (seawater, vs SCE)-0.31 V
Corrosion ResistanceVery good74/100
Chemical Resistance SummaryVery good in seawater, brines, non-oxidising acids, alkalis and steam; resists cavitation and erosion. Attacked by oxidising acids (nitric), ammonia and strongly aerated chlorides; slow-cooled castings can suffer selective (de-aluminification) attack unless heat treated.

Sustainability4

Producing a kilogram of C95400 Cont Cast takes about 55 MJ of energy and emits 3.6 kg of CO₂ — less than 72% of copper alloy grades. Typical recycled content is 50%.

Embodied Energy (primary production)55 MJ/kg23,646 BTU/lb
Embodied Carbon (primary production)3.6 kg CO₂/kg
Embodied Water250 L/kg30 gal/lb
Typical Recycled Content50%

Manufacturability8

C95400 Cont Cast's machinability is fair (50/100, better than 69% of copper alloy grades); weldability good (60/100); formability poor (20/100).

MachinabilityFair50/100
Machinability Rating (AISI 1212 = 100 %)60%
WeldabilityGood60/100
Formability (cold)Poor20/100
CastabilityVery good78/100
Brazeability / SolderabilityFair35/100
PolishabilityVery good70/100
Anodizing Responsen/a — copper alloy; use passivation or protective coatings instead of anodizing

Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.

Other C95400 tempers and conditions

C95400 is also supplied in 2 other conditions. The full side-by-side table is on the C95400 overview.

Working with C95400 Cont Cast

Is C95400 easy to machine?

Machines at about 60 % of free-cutting brass: tough, gummy chips need sharp positive-rake carbide, rigid setup, moderate speed and generous coolant; HT material is harder and abrasive on tooling.

Can C95400 be welded?

GTAW/GMAW with matching aluminium-bronze filler (ERCuAl-A2) works well with 150–250 °C preheat and clean oxide removal; avoid oxyfuel and soldering because of the tenacious alumina film.

Can C95400 be formed, bent or molded?

Casting alloy — sand, centrifugal and continuous cast; use bottom gating and good filtering to keep alumina dross out, feed heavily due to high solidification shrinkage; not cold formable.

What surface finishes work on C95400?

Takes a good mechanical polish and develops a stable olive-brown patina; not anodizable — use passivation, lacquer or paint for appearance, and electroless nickel/chrome where extra wear resistance is needed.

C95400 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.

ElementSpec limit (wt %)Nominal
Alprimary strengthening element10 – 11.511
Fegrain refiner, forms κ phases3 – 54
Mn≤ 0.50.2
NiNi + Co≤ 1.50.3
Si≤ 0.25—
Zn≤ 0.5—
Cu≥ 83 (balance)—

C95400 Cont Cast — frequently asked

What is C95400 Cont Cast used for?

C95400 Cont Cast is typically used for aluminum bronze gears and worm wheels, heavy-duty bushings and bearing sleeves, valve seats and valve components, wear plates and gib strips, forming die and press inserts and pump casings and impellers. In short: shock-load bearing bronze.

What is the yield strength of C95400 Cont Cast?

C95400 Cont Cast has a typical yield strength of 262 MPa (38 ksi) and a tensile strength of 620 MPa (89.9 ksi) — stronger than 56% of copper alloy grades. Strength varies by condition: see the 3 listed tempers.

Is C95400 Cont Cast easy to machine?

Reasonably — machinability is rated fair (50/100, better than 69% of copper alloy grades). Machines at about 60 % of free-cutting brass: tough, gummy chips need sharp positive-rake carbide, rigid setup, moderate speed and generous coolant; HT material is harder and abrasive on tooling.

Can C95400 Cont Cast be welded?

Yes — weldability is rated good (60/100). GTAW/GMAW with matching aluminium-bronze filler (ERCuAl-A2) works well with 150–250 °C preheat and clean oxide removal; avoid oxyfuel and soldering because of the tenacious alumina film.

What surface finishes work on C95400 Cont Cast?

Takes a good mechanical polish and develops a stable olive-brown patina; not anodizable — use passivation, lacquer or paint for appearance, and electroless nickel/chrome where extra wear resistance is needed.

Can C95400 Cont Cast be formed, bent or molded?

Casting alloy — sand, centrifugal and continuous cast; use bottom gating and good filtering to keep alumina dross out, feed heavily due to high solidification shrinkage; not cold formable.

What is the maximum service temperature of C95400 Cont Cast?

C95400 Cont Cast 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 C95400 As Cast and C95400-HT?

As Cast is the default condition — default stocked condition for gears, bushings and valve components where 586 MPa UTS and ~170 HB are sufficient. HT: pick when maximum strength, hardness and wear resistance are needed (heavily loaded worm gears, dies, bearing sleeves) and when de-aluminification resistance must be improved. Yield strength is 241 MPa in As Cast versus 372 MPa in HT.

Can FabDigit make parts in C95400 Cont Cast?

Yes — C95400 Cont Cast is available for CNC machining with instant online pricing. Upload a STEP file to get a price and a DFM check.

Sources

  1. ASTM B148 — Aluminum-Bronze Sand Castings — ASTM (2019)
  2. ASTM B505/B505M — Continuous Cast Copper Alloy Castings — ASTM (2018)
  3. CDA Alloy Datasheet C95400 (copper.org) — Copper Development Association (2023)
  4. ASM Handbook Vol. 2 — Properties of Nonferrous Alloys — ASM International (1990)
  5. ASM Handbook Vol. 13B — Corrosion: Materials — ASM International (2005)
  6. GB/T 1176 (ZCuAl10Fe3) — SAC (2013)
  7. AMPCO 18 / aluminium bronze product data — AMPCO Metal (2022)

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.