Copper Alloy C92200
UNS C92200
C92200 is a leaded tin bronze of the 85Cu-5Sn-5Zn-5Pb type in the C90000–C95999 cast family, also listed as SAE 4A and CB498K, with lead added for machinability and pressure tightness.
Reference datasheet — C92200 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 M01 condition
C92200 tempers and conditions
C92200 is supplied in 4 conditions, soft to hard. M01 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 |
|---|---|---|---|---|---|---|
M01Default As sand cast | Standard ASTM B61 sand-cast valve and fitting bodies; best all-round ductility and pressure tightness. | 138 | 276 | 30 | 65 HB | 14.3 % IACS |
As centrifugally cast | Pick for rings, bushings, sleeves and large-diameter tubular blanks needing a dense, oxide-free wall (ASTM B271). | 145 | 290 | 28 | 68 HB | 14.3 % IACS |
As continuous cast | Continuous-cast bar and tube (ASTM B505) for machined bushings and fittings — finer, more uniform structure and slightly higher yield than sand cast. | 152 | 276 | 22 | 70 HB | 14.3 % IACS |
As plaster cast | Permanent-mould castings for repeat small fittings; faster solidification gives slightly higher hardness with lower elongation. | 152 | 283 | 24 | 70 HB | 14.3 % IACS |
What is C92200?
C92200 is a leaded tin bronze of the 85Cu-5Sn-5Zn-5Pb type in the C90000–C95999 cast family, also listed as SAE 4A and CB498K, with lead added for machinability and pressure tightness. It is the standard choice for valve bodies, pump housings and fittings, poured as sand, permanent-mold, centrifugal and continuous castings, and gives 276 MPa tensile, 138 MPa yield and 30 % elongation at 65 HB. Service is limited to 260 °C and electrical conductivity is 14.3 % IACS; the lead content makes arc welding unreliable and may restrict use where low-lead potable-water alloys are mandated. C92300 is the nearest alternative. C92200 has a density of 8.64 g/cm³ (0.312 lb/in³), lighter than 57% of copper alloy grades. It melts at 825°C (1,517 °F). C92200 has a yield strength of 138 MPa (20 ksi) and a tensile strength of 276 MPa (40 ksi) — weaker than 76% of copper alloy grades. Elongation at break is 30% and the elastic modulus is 100 GPa (14.5 Msi).
What is C92200 used for?
- valve bodies
- pump housings
- fittings
- marine hardware
Advantages
- Ductile — tolerates forming and impact — 30%, better than 75% of copper alloy grades
- High service temperature — 260°C (500 °F), better than 75% of copper alloy grades
Limitations
- Hard to polish — 60/100, worse than 92% of copper alloy grades
- Low stiffness — 100 GPa (14.5 Msi), worse than 82% of copper alloy grades
- Poor heat conductor — 41 W/m·K (23.7 BTU/hr·ft·°F), worse than 81% 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
C92200 properties
Typical room-temperature values for C92200-M01; bars are the position among copper alloy grades.
Physical3
C92200 has a density of 8.64 g/cm³ (0.312 lb/in³), lighter than 57% of copper alloy grades. It melts at 825°C (1,517 °F).
Mechanical15
C92200 has a yield strength of 138 MPa (20 ksi) and a tensile strength of 276 MPa (40 ksi) — weaker than 76% of copper alloy grades. Elongation at break is 30% and the elastic modulus is 100 GPa (14.5 Msi).
Thermal6
C92200 is rated for continuous service to 260°C (500 °F). It conducts heat at 41 W/m·K (23.7 BTU/hr·ft·°F), worse than 81% of copper alloy grades. Thermal expansion is 18 µm/m·K (10 µin/in·°F).
Electrical3
C92200 conducts electricity at 14.3 % IACS, worse than 56% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is good (68/100), better than 69% of copper alloy grades.
Sustainability4
Producing a kilogram of C92200 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
C92200's machinability is fair (50/100, better than 69% 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. C92200 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with C92200
Is C92200 easy to machine?
Free-machining with the lead phase: use positive-rake carbide or HSS, high speed, light feed, soluble-oil coolant; chips are short and holes hold size well.
Can C92200 be welded?
Arc/gas welding is not recommended (lead causes hot cracking and porosity); repair by braze or soft solder, or use mechanical joints.
Can C92200 be formed, bent or molded?
A foundry alloy only — excellent fluidity and pressure tightness in sand, centrifugal and continuous casting; feed heavy sections to avoid tin sweat and interdendritic shrinkage.
C92200 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 |
|---|---|---|
| Sn | 5.5 – 6.5 | 6 |
| Pb | 1 – 2 | 1.5 |
| Zn | 3 – 5 | 4.5 |
| Niincl. Co | ≤ 1 | |
| Fe | ≤ 0.25 | |
| Sb | ≤ 0.25 | |
| P | ≤ 0.05 | |
| S | ≤ 0.05 | |
| Al | ≤ 0.01 | |
| Si | ≤ 0.01 | |
| CuCu + named elements ≥ 99.5 % | ≥ 86 (balance) |
What surface finishes work on C92200?
Not anodizable; take a bright turned or buffed finish, or apply tin, nickel or chrome plating; passivating/pickling in dilute sulphuric acid removes casting scale.
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 C92200 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- Trade names
- CB498K4A
- Also called
- Navy-M Bronze
How much does C92200 cost?
C92200 is a high-cost copper alloy ($$$$), pricier than about 78% 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.
C92200 — frequently asked
What is C92200 used for?
C92200 is typically used for valve bodies, pump housings, fittings and marine hardware. In short: standard valve-body bronze; pressure-tight and free-machining; lead blocks fusion welding.
What is the yield strength of C92200?
C92200 has a typical yield strength of 138 MPa (20 ksi) and a tensile strength of 276 MPa (40 ksi) — weaker than 76% of copper alloy grades. Strength varies by condition: see the 4 listed tempers.
Is C92200 easy to machine?
Reasonably — machinability is rated fair (50/100, better than 69% of copper alloy grades). Free-machining with the lead phase: use positive-rake carbide or HSS, high speed, light feed, soluble-oil coolant; chips are short and holes hold size well.
Can C92200 be welded?
Not readily — weldability is rated poor (25/100). Arc/gas welding is not recommended (lead causes hot cracking and porosity); repair by braze or soft solder, or use mechanical joints.
What surface finishes work on C92200?
Not anodizable; take a bright turned or buffed finish, or apply tin, nickel or chrome plating; passivating/pickling in dilute sulphuric acid removes casting scale.
Can C92200 be formed, bent or molded?
A foundry alloy only — excellent fluidity and pressure tightness in sand, centrifugal and continuous casting; feed heavy sections to avoid tin sweat and interdendritic shrinkage.
What is the maximum service temperature of C92200?
C92200 is rated for continuous use to about 260°C (500 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between C92200-M01 and C92200-M07?
M01 is the default condition — standard ASTM B61 sand-cast valve and fitting bodies; best all-round ductility and pressure tightness. M07: continuous-cast bar and tube (ASTM B505) for machined bushings and fittings — finer, more uniform structure and slightly higher yield than sand cast. Yield strength is 138 MPa in M01 versus 152 MPa in M07.
How much does C92200 cost?
C92200 is a high-cost copper alloy ($$$$), pricier than about 78% 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
- ASTM B61 — Steam or Valve Bronze Castings — ASTM International (2021)
- ASTM B505/B505M — Continuous Cast Copper Alloy Rod, Bar and Shapes — ASTM International (2018)
- ASTM B271 — Copper-Base Alloy Centrifugal Castings — ASTM International (2020)
- Copper Alloy C92200 property sheet — Copper Development Association (copper.org) (2023)
- ASM Handbook Vol. 2 — Properties of Nonferrous Alloys (Cast Copper Alloys) — ASM International (1990)
- SAE J461/J462 — Cast Copper Alloys (SAE 4A) — SAE International (2012)
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.