Copper Alloy C93600 · finish state · default condition
Copper Alloy C93600 As Cast
Properties of the As Cast condition, compared with the other C93600 tempers.
Default supply condition for all C93600 castings and cast bar; no heat treatment is used for this alloy.
What is C93600 As Cast?
C93600 As Cast is C93600 supplied in the As Cast condition — default supply condition for all C93600 castings and cast bar; no heat treatment is used for this alloy. C93600 As Cast has a yield strength of 110 MPa (16 ksi) and a tensile strength of 207 MPa (30 ksi) — weaker than 81% of copper alloy grades. Elongation at break is 15% and the elastic modulus is 76 GPa (11 Msi). C93600 As Cast has a density of 8.94 g/cm³ (0.323 lb/in³), heavier than 90% of copper alloy grades. It melts at 762°C (1,404 °F).
Advantages
- Easy to machine — 85/100, better than 93% of copper alloy grades
Limitations
- Low stiffness — 76 GPa (11 Msi), worse than 98% of copper alloy grades
- Difficult to weld — 10/100, worse than 98% of copper alloy grades
- Hard to polish — 55/100, worse than 97% of copper alloy grades
- Limited formability — 10/100, worse than 91% of copper alloy grades
- Low strength — 110 MPa (16 ksi), worse than 81% of copper alloy grades
C93600 As Cast properties
Typical room-temperature values for C93600 As Cast — 6 properties are specific to this condition; the rest are grade-level values shared by every C93600 temper. Each bar shows where the value sits among the copper alloy grades in FabDigit's library — further right is higher.
Physical3
C93600 As Cast has a density of 8.94 g/cm³ (0.323 lb/in³), heavier than 90% of copper alloy grades. It melts at 762°C (1,404 °F).
Mechanical10
C93600 As Cast has a yield strength of 110 MPa (16 ksi) and a tensile strength of 207 MPa (30 ksi) — weaker than 81% of copper alloy grades. Elongation at break is 15% and the elastic modulus is 76 GPa (11 Msi).
Thermal6
C93600 As Cast is rated for continuous service to 230°C (446 °F). It conducts heat at 47 W/m·K (27.2 BTU/hr·ft·°F), worse than 70% of copper alloy grades. Thermal expansion is 18.5 µm/m·K (10.3 µin/in·°F).
Electrical3
C93600 As Cast conducts electricity at 11 % IACS, worse than 69% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is good (55/100), worse than 86% of copper alloy grades.
Sustainability4
Producing a kilogram of C93600 As 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 75%.
Manufacturability8
C93600 As Cast's machinability is excellent (85/100, better than 93% of copper alloy grades); weldability not recommended (10/100); 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.
Other C93600 tempers and conditions
C93600 is also supplied in 4 other conditions. The full side-by-side table is on the C93600 overview.
- As CastDefaultDefault supply condition for all C93600 castings and cast bar; no heat treatment is used for this alloy.110 MPa yield · 60 HB
Working with C93600 As Cast
Is C93600 easy to machine?
Excellent free-machining behaviour (≈80% of AISI 1212): use sharp positive-rake tools, light feeds and generous coolant; lead smearing can dull surface finish on final bores.
Can C93600 be welded?
Essentially unweldable — lead causes severe hot cracking and porosity; join by mechanical fit, soft soldering or shrink/press fitting instead.
Can C93600 be formed, bent or molded?
Casting alloy only (sand, permanent-mould, centrifugal, continuous); pour ~1090–1150 °C with good degassing and chills to avoid lead segregation and gravity settling in thick walls.
What surface finishes work on C93600?
Not anodizable; leave as-machined, or tin/nickel plate, chemically blacken, or lap/burnish bearing bores — avoid abrasive polishing that smears the lead phase.
C93600 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 |
|---|---|---|
| Cu | 79 – 83 | 81 |
| Sn | 6 – 8 | 7 |
| Pbfree lead phase for lubricity | 11 – 13 | 12 |
| Zn | ≤ 1 | — |
| Niincl. Co | ≤ 1 | — |
| Sb | ≤ 0.55 | — |
| Fe | ≤ 0.2 | — |
| P | ≤ 0.15 | — |
| S | ≤ 0.08 | — |
| Al | ≤ 0.01 | — |
| Si | ≤ 0.01 | — |
C93600 As Cast — frequently asked
What is C93600 As Cast used for?
C93600 As Cast is typically used for bearings, bushings and piston pin bushings. In short: self-lubricating high-lead.
What is the yield strength of C93600 As Cast?
C93600 As Cast has a typical yield strength of 110 MPa (16 ksi) and a tensile strength of 207 MPa (30 ksi) — weaker than 81% of copper alloy grades. Strength varies by condition: see the 5 listed tempers.
Is C93600 As Cast easy to machine?
Yes — machinability is rated excellent (85/100, better than 93% of copper alloy grades). Excellent free-machining behaviour (≈80% of AISI 1212): use sharp positive-rake tools, light feeds and generous coolant; lead smearing can dull surface finish on final bores.
Can C93600 As Cast be welded?
Not readily — weldability is rated not recommended (10/100). Essentially unweldable — lead causes severe hot cracking and porosity; join by mechanical fit, soft soldering or shrink/press fitting instead.
What surface finishes work on C93600 As Cast?
Not anodizable; leave as-machined, or tin/nickel plate, chemically blacken, or lap/burnish bearing bores — avoid abrasive polishing that smears the lead phase.
Can C93600 As Cast be formed, bent or molded?
Casting alloy only (sand, permanent-mould, centrifugal, continuous); pour ~1090–1150 °C with good degassing and chills to avoid lead segregation and gravity settling in thick walls.
What is the maximum service temperature of C93600 As Cast?
C93600 As Cast is rated for continuous use to about 230°C (446 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Can FabDigit make parts in C93600 As Cast?
Yes — C93600 As Cast is available for CNC machining with instant online pricing. Upload a STEP file to get a price and a DFM check.
Sources
- ASTM B505/B505M — Copper Alloy Continuous Castings — ASTM International (2018)
- ASTM B22 — Bronze Castings for Bridges and Turntables — ASTM International (2017)
- CDA Standard Designation C93600 alloy datasheet (copper.org) — Copper Development Association (2023)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- GB/T 1176 (ZCuPb10Sn10 ) — SAC (2013)
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.