Copper Alloy CC753S
EN CC753S
CC753S (CuZn37Pb2Ni1AlFe-C) is a leaded cast brass from the EN cast copper-alloy family, with nickel, aluminium and iron additions that raise strength and wear resistance above plain leaded brass.
Reference datasheet — CC753S 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 GS condition
CC753S tempers and conditions
CC753S is supplied in 4 conditions, soft to hard. GS is the default FabDigit quotes; the values on this page are for it.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
GSDefault Sand cast | General-purpose route for medium and large valve/pump bodies and one-off or low-volume castings. | 150 | 320 | 18 | 80 HB | 20 % IACS |
Permanent (gravity die) cast | Choose for series production of small/medium parts needing finer grain, better surface and higher strength than sand casting. | 180 | 360 | 15 | 90 HB | 19 % IACS |
Centrifugally cast | Best for bushings, sleeves and rings where a dense, inclusion-free bore and higher wear strength are required. | 190 | 390 | 15 | 95 HB | 19 % IACS |
Continuously cast bar/tube | Stock form for machined bushings, nuts and gear blanks — most uniform structure and best machining yield. | 200 | 390 | 15 | 95 HB | 20 % IACS |
What is CC753S?
CC753S (CuZn37Pb2Ni1AlFe-C) is a leaded cast brass from the EN cast copper-alloy family, with nickel, aluminium and iron additions that raise strength and wear resistance above plain leaded brass. In the default condition it gives 150 MPa yield, 320 MPa tensile, 18 % elongation and 80 HB, with a machinability score of 80 and service to 200 °C; it is available as sand (GS), permanent-mould (GM), centrifugal (GZ) and continuous (GC) castings. The lead phase makes it free-machining but rules out structural fusion welding, and lead content limits potable-water use. Where a lead-free water-contact casting is required, CC761S silicon brass is the closer choice. CC753S has a density of 8.4 g/cm³ (0.303 lb/in³), lighter than 75% of copper alloy grades. It melts at 880°C (1,616 °F). CC753S has a yield strength of 150 MPa (21.8 ksi) and a tensile strength of 320 MPa (46.4 ksi) — weaker than 69% of copper alloy grades. Elongation at break is 18% and the elastic modulus is 95 GPa (13.8 Msi).
What is CC753S used for?
- gear housings
- marine fittings
- wear-resistant castings
Advantages
- Easy to machine — 80/100, better than 86% of copper alloy grades
Limitations
- Low stiffness — 95 GPa (13.8 Msi), worse than 93% of copper alloy grades
- Hard to polish — 65/100, worse than 87% of copper alloy grades
- Limited formability — 15/100, worse than 79% of copper alloy grades
- Difficult to weld — 25/100, worse than 78% of copper alloy grades
CC753S properties
Typical room-temperature values for CC753S-GS; bars are the position among copper alloy grades.
Physical3
CC753S has a density of 8.4 g/cm³ (0.303 lb/in³), lighter than 75% of copper alloy grades. It melts at 880°C (1,616 °F).
Mechanical15
CC753S has a yield strength of 150 MPa (21.8 ksi) and a tensile strength of 320 MPa (46.4 ksi) — weaker than 69% of copper alloy grades. Elongation at break is 18% and the elastic modulus is 95 GPa (13.8 Msi).
Thermal6
CC753S is rated for continuous service to 200°C (392 °F). It conducts heat at 100 W/m·K (57.8 BTU/hr·ft·°F), better than 54% of copper alloy grades. Thermal expansion is 21 µm/m·K (11.7 µin/in·°F).
Electrical3
CC753S conducts electricity at 20 % IACS, better than 52% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is good (55/100), worse than 86% of copper alloy grades.
Sustainability4
Producing a kilogram of CC753S takes about 55 MJ of energy and emits 3.6 kg of CO₂ — less than 72% of copper alloy grades. Typical recycled content is 80%.
Manufacturability8
CC753S's machinability is very good (80/100, better than 86% of copper alloy grades); weldability poor (25/100); formability poor (15/100).
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. CC753S is highlighted; hover a dot for its name, or open the interactive family chart.
Working with CC753S
Is CC753S easy to machine?
Machines freely with sharp carbide or HSS at high speed and light feed; Al/Fe/Ni raise cutting forces versus plain leaded brass, use 0° to slightly positive rake and emulsion coolant.
Can CC753S be welded?
Not recommended for structural welding — lead causes hot cracking and Zn fumes; repair by brazing or TIG with silicon-bronze filler on preheated, cleaned metal only.
Can CC753S be formed, bent or molded?
Casting alloy: pour 980–1050 °C with good gating and risers, degas and stir minimally to avoid Al oxide films; no cold forming.
CC753S 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 | 57 – 60 | 58.5 |
| Pbfree-machining phase | 1 – 2.5 | 2 |
| Ni | 0.5 – 1.5 | 1 |
| Alβ-stabiliser, strength | 0.3 – 1.3 | 0.8 |
| Fegrain refinement / wear | 0.3 – 1.5 | 0.8 |
| Mn | ≤ 0.5 | 0.2 |
| Snimpurity limit | ≤ 0.4 | 0.2 |
| Siimpurity limit | ≤ 0.1 | |
| Zn | balance |
What surface finishes work on CC753S?
Takes tin, nickel and chrome plating well after alkaline cleaning; polish to bright finish and lacquer or chromate-passivate to prevent tarnish; do not anodize.
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 CC753S in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- CuZn37Pb2Ni1AlFe-C
How much does CC753S cost?
CC753S is a premium-cost copper alloy ($$$), cheaper than about 51% 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.
CC753S — frequently asked
What is CC753S used for?
CC753S is typically used for gear housings, marine fittings and wear-resistant castings. In short: higher-strength leaded cast brass; wear-resistant casting grade; free-machining, not weldable.
What is the yield strength of CC753S?
CC753S has a typical yield strength of 150 MPa (21.8 ksi) and a tensile strength of 320 MPa (46.4 ksi) — weaker than 69% of copper alloy grades. Strength varies by condition: see the 4 listed tempers.
Is CC753S easy to machine?
Yes — machinability is rated very good (80/100, better than 86% of copper alloy grades). Machines freely with sharp carbide or HSS at high speed and light feed; Al/Fe/Ni raise cutting forces versus plain leaded brass, use 0° to slightly positive rake and emulsion coolant.
Can CC753S be welded?
Not readily — weldability is rated poor (25/100). Not recommended for structural welding — lead causes hot cracking and Zn fumes; repair by brazing or TIG with silicon-bronze filler on preheated, cleaned metal only.
What surface finishes work on CC753S?
Takes tin, nickel and chrome plating well after alkaline cleaning; polish to bright finish and lacquer or chromate-passivate to prevent tarnish; do not anodize.
Can CC753S be formed, bent or molded?
Casting alloy: pour 980–1050 °C with good gating and risers, degas and stir minimally to avoid Al oxide films; no cold forming.
What is the maximum service temperature of CC753S?
CC753S is rated for continuous use to about 200°C (392 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between CC753S-GS and CC753S-GC?
GS is the default condition — general-purpose route for medium and large valve/pump bodies and one-off or low-volume castings. GC: stock form for machined bushings, nuts and gear blanks — most uniform structure and best machining yield. Yield strength is 150 MPa in GS versus 200 MPa in GC.
How much does CC753S cost?
CC753S is a premium-cost copper alloy ($$$), cheaper than about 51% 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 — CEN (2017)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- CDA / copper.org cast copper alloy datasheets — Copper Development Association (2023)
- Continuous-cast brass bushing stock datasheets — European copper-alloy foundries (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.