Introduction
C90420 is a tin bronze sand-casting grade covered by ASTM B584. Typical family applications include gears, bushings, pump bodies, impellers and valve parts.
| Field | Value |
|---|---|
| Designation | C90420 |
| Material Type | Bronze |
| Sub Type | Tin Bronze |
| 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 | C90420 | UNS C90420 |
Related Casting Products
Physical Properties
N/A
Chemical Composition
| Element | ASTM B584Edition 14 · wt.% |
|---|---|
| Cu | 86.0–89.0 |
| Zn | 1.0–5.0 |
| Sn | 7.5–8.5 |
| Pb | ≤ 0.09 |
| Fe | ≤ 0.40 |
| Al | ≤ 0.005 |
| Mn | ≤ 0.20 |
| Si | ≤ 0.005 |
| P | ≤ 0.05 |
| Sb | ≤ 0.02 |
| S | 0.10–0.65 |
| Ni+Co | ≤ 1.0[1] |
| B | ≤ 0.10 |
| Zr | ≤ 0.10 |
| C | ≤ 0.10 |
| Ti | ≤ 0.10 |
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
For tin bronze ASTM B584 C90420, typical cast components in this material family include gears, bushings, pump bodies, impellers and valve parts. Applications include power-transmission machinery, industrial fluid-handling equipment and selected marine systems. Loading, lubrication and the actual process medium remain relevant; a steam-equipment example does not establish a general pressure or temperature rating.
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Email Us for a QuoteLast Updated: November 6, 2026