Introduction
C90420 is a tin bronze sand-casting grade specified in ASTM B584. The standard specifies composition and applicable mechanical requirements for general applications. Casting process options include Sand Casting, subject to the applicable specification and component requirements.
| Field | Value |
|---|---|
| Designation | C90420 |
| Material Type | Bronze |
| Sub Type | Tin Bronze |
| Product Form | casting |
Manufacturing Process
Sand Casting
Equivalent Grades
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 |
Heat Treatment
NO HEAT TREATMENT
Mechanical Properties
| Property | ASTM B584Edition 14[1] |
|---|---|
| Elongation | ≥ 17 % |
| Tensile Strength | ≥ 41 ksi / 283 MPa (reference)[2] |
| Yield Strength | ≥ 22 ksi / 152 MPa (reference)[3] |
Notes
ASTM B584 · Edition 14
[1] All properties in this column: separately cast test bar; 2 in. or 50 mm; 8.1
[2] Tensile Strength: inch-pound
[3] Yield Strength: inch-pound; 0.5% extension under load
Welding Conditions
N/A
Applications
At the material-family level, typical applications include custom tin bronze sand-cast components for general industrial use. Selection for a particular application depends on the specified alloy and component requirements.
Last Updated: October 13, 2026