Copper Alloy C95600-TQ50
Supply condition
UNS C95600
TQ50 = quench hardened and tempered
Rarely supplied for this alloy; specify only when a foundry offers a heat-treated variant for higher strength and hardness.
Values for the TQ50 condition
Other C95600 tempers and conditions
C95600 is listed in 4 conditions; see the grade overview at C95600.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
M01Default As sand cast | Standard commercial condition for pump housings, valve bodies and marine fittings poured in sand moulds. | 193 | 414 | 18 | 140 HB | 7.5 % IACS |
As centrifugally cast | Choose for rings, sleeves, bushings and flanges where the finer chilled structure gives slightly higher strength and soundness. | 207 | 448 | 16 | 145 HB | 7.5 % IACS |
As continuous cast | Continuous-cast bar and tube for machined valve stems, bushings and marine hardware bought as stock shapes. | 214 | 448 | 15 | 150 HB | 7.5 % IACS |
TQ50This page Quench hardened and tempered | Rarely supplied for this alloy; specify only when a foundry offers a heat-treated variant for higher strength and hardness. | 240 | 480 | 12 | 165 HB | 7.5 % IACS |
What is C95600-TQ50?
C95600-TQ50 is C95600 supplied in the TQ50 condition — rarely supplied for this alloy; specify only when a foundry offers a heat-treated variant for higher strength and hardness. C95600-TQ50 has a yield strength of 240 MPa (34.8 ksi) and a tensile strength of 480 MPa (69.6 ksi) — stronger than 52% of copper alloy grades. Elongation at break is 12% and the elastic modulus is 117 GPa (17 Msi). C95600-TQ50 has a density of 7.53 g/cm³ (0.272 lb/in³), lighter than 96% of copper alloy grades. It melts at 980°C (1,796 °F). M01 is the default condition FabDigit quotes; TQ50 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
- Low embodied carbon — 3.2 kg CO₂/kg, better than 92% of copper alloy grades
- Good corrosion resistance — 73/100, better than 87% of copper alloy grades
- High service temperature — 300°C (572 °F), better than 85% of copper alloy grades
Limitations
- Limited formability — 12/100, worse than 85% of copper alloy grades
- Low electrical conductivity — 7.5 % IACS, worse than 84% of copper alloy grades
- Poor heat conductor — 45 W/m·K (26 BTU/hr·ft·°F), worse than 76% of copper alloy grades
C95600-TQ50 properties
Typical room-temperature values for C95600-TQ50; 20 are specific to this condition. Other listed values are C95600 reference data and may not represent this condition. Bars are the position among copper alloy grades.
Physical3
C95600-TQ50 has a density of 7.53 g/cm³ (0.272 lb/in³), lighter than 96% of copper alloy grades. It melts at 980°C (1,796 °F).
Mechanical13
C95600-TQ50 has a yield strength of 240 MPa (34.8 ksi) and a tensile strength of 480 MPa (69.6 ksi) — stronger than 52% of copper alloy grades. Elongation at break is 12% and the elastic modulus is 117 GPa (17 Msi).
Thermal6
C95600-TQ50 is rated for continuous service to 300°C (572 °F). It conducts heat at 45 W/m·K (26 BTU/hr·ft·°F), worse than 76% of copper alloy grades. Thermal expansion is 16.2 µm/m·K (9 µin/in·°F).
Electrical3
C95600-TQ50 conducts electricity at 7.5 % IACS, worse than 84% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is very good (73/100), better than 87% of copper alloy grades.
Sustainability4
Producing a kilogram of C95600-TQ50 takes about 48 MJ of energy and emits 3.2 kg of CO₂ — less than 92% of copper alloy grades. Typical recycled content is 45%.
Manufacturability7
C95600-TQ50's machinability is fair (48/100, better than 68% of copper alloy grades); weldability fair (50/100); formability not recommended (12/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with C95600-TQ50
Is C95600 easy to machine?
Machines noticeably better than iron-bearing aluminium bronzes — use rigid setups, positive-rake carbide, moderate speed with generous coolant to avoid work-hardening and built-up edge.
Can C95600 be welded?
GTAW/GMAW with matching aluminium-bronze filler (ERCuAl-A2) works well; remove the tenacious Al₂O₃ film, keep interpass temperature moderate and avoid high heat input to limit hot cracking.
Can C95600 be formed, bent or molded?
Foundry alloy: silicon gives good fluidity and reduced hot-tear sensitivity, but design for directional solidification with chills/risers and degas the melt; not intended for cold forming.
What surface finishes work on C95600?
Takes a bright mechanical polish and develops a protective brown patina; not anodizable — use passivation, lacquer, or electroless nickel/chrome plating for appearance or wear duty.
C95600 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 |
|---|---|---|
| Alprimary strengthening addition | 6 – 8 | 7 |
| Siimproves fluidity and machinability | 1.8 – 3.2 | 2.5 |
| CuCu 88.0 % min per ASTM B148/B505 | ≥ 88 (balance) | — |
C95600-TQ50 — frequently asked
What is C95600-TQ50 used for?
C95600-TQ50 is typically used for valve bodies, marine hardware and corrosion-resistant fittings. In short: easiest-machining aluminum bronze; silicon improves castability; good seawater corrosion resistance.
What is the yield strength of C95600-TQ50?
C95600-TQ50 has a typical yield strength of 240 MPa (34.8 ksi) and a tensile strength of 480 MPa (69.6 ksi) — stronger than 52% of copper alloy grades. Strength varies by condition: see the 4 listed tempers.
Is C95600-TQ50 easy to machine?
Reasonably — machinability is rated fair (48/100, better than 68% of copper alloy grades). Machines noticeably better than iron-bearing aluminium bronzes — use rigid setups, positive-rake carbide, moderate speed with generous coolant to avoid work-hardening and built-up edge.
Can C95600-TQ50 be welded?
With care — weldability is rated fair (50/100). GTAW/GMAW with matching aluminium-bronze filler (ERCuAl-A2) works well; remove the tenacious Al₂O₃ film, keep interpass temperature moderate and avoid high heat input to limit hot cracking.
What surface finishes work on C95600-TQ50?
Takes a bright mechanical polish and develops a protective brown patina; not anodizable — use passivation, lacquer, or electroless nickel/chrome plating for appearance or wear duty.
Can C95600-TQ50 be formed, bent or molded?
Foundry alloy: silicon gives good fluidity and reduced hot-tear sensitivity, but design for directional solidification with chills/risers and degas the melt; not intended for cold forming.
What is the maximum service temperature of C95600-TQ50?
C95600-TQ50 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 C95600-M01 and C95600-TQ50?
M01 is the default condition — standard commercial condition for pump housings, valve bodies and marine fittings poured in sand moulds. TQ50: rarely supplied for this alloy; specify only when a foundry offers a heat-treated variant for higher strength and hardness. Yield strength is 193 MPa in M01 versus 240 MPa in TQ50.
Sources
- ASTM B148 — Aluminum-Bronze Sand Castings — ASTM International (2019)
- ASTM B505/B505M — Copper Alloy Continuous Castings — ASTM International (2018)
- CDA Alloy Datasheet C95600 — Copper Development Association (copper.org) (2023)
- ASM Handbook Vol.2 — Properties of Nonferrous Alloys — ASM International (1990)
- ASM Handbook Vol.13B — Corrosion: Materials — ASM International (2005)
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.