Introduction
C87850 is a brass sand-casting grade covered by ASTM B584. Typical applications include plumbing fittings and water-meter cases, with technical guidance also identifying marine and industrial applications.
| Field | Value |
|---|---|
| Designation | C87850 |
| Material Type | Copper Alloy |
| Sub Type | Brass |
| Product Form | casting |
Manufacturing Process
Sand Casting
Equivalent Materials
N/A
Similar Materials
N/A
Reference Standards
| Standard | Standard Title | Edition | Specification | Identifier |
|---|---|---|---|---|
| ASTM B584 | Standard Specification for Copper Alloy Sand Castings for General Applications | 14 | C87850 | UNS C87850, source_designation silicon brass |
Related Casting Products
Physical Properties
N/A
Chemical Composition
| Element | ASTM B584Edition 14 · wt.% |
|---|---|
| Cu | 75.0–78.0 |
| Zn | remainder |
| Sn | ≤ 0.30 |
| Pb | ≤ 0.09 |
| Fe | ≤ 0.10 |
| Mn | ≤ 0.10 |
| Si | 2.7–3.4 |
| P | 0.05–0.20 |
| Sb | ≤ 0.10 |
| Ni+Co | ≤ 0.20[1] |
Notes
ASTM B584 · Edition 14
[1] Ni+Co: Nickel including cobalt; combined limit
Heat Treatment
ASTM B584–14
N/A
Mechanical Properties
Core Mechanical Properties
Notes
ASTM B584 · Edition 14
[1] Tensile Strength: inch-pound
[2] Yield Strength: inch-pound; 0.5% extension under load
Welding Conditions
N/A
Applications
Brass ASTM B584 C87850 is used for plumbing fittings and water-meter cases, with technical guidance also identifying marine and industrial applications. Other cast components used in this material family include valve bodies, pump-related parts, shaped connections and hardware and enclosure components. Applications include plumbing, water-handling equipment, building services and industrial fluid-control assemblies.
A plumbing use does not itself establish drinking-water certification or a finished component pressure rating.
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Email Us for a QuoteLast Updated: November 6, 2026