Description
CDA C937 Leaded Tin Bronze Certified Reference Material (CRM)
This CDA C937 certified reference material is a copper alloy widely used as a standard for calibrating and verifying your spectrometer (XRF, ICP-OES, Spark-OES, etc.). This material is precisely manufactured and certified to have traceable measurements and specified impurity levels, ensuring reliable results for laboratories performing calibration, quality control, and materials testing.
Certified C937 Bronze Chemical Composition:
| Element | Composition |
| Ag | 0.05% |
| Al | 0.0013% |
| Sb | 0.078% |
| As | 0.005% |
| Bi | 0.011% |
| Cu | 80.35% |
| Fe | 0.008% |
| Pb | 9.42% |
| Mn | 0.0016% |
| Ni | 0.170% |
| P | 0.073% |
| S | 0.026% |
| Si | 0.0019% |
| Sn | 9.65% |
| Zn | 0.146% |
CDA 937/C93700 Bearing Bronze Chemical Range:
| Element | Composition |
| Cu | 78-82% |
| Pb | 8-11% |
| Sn | 9-11% |
| Zn | 0.8% max |
| Fe | 0.7% max |
| P | 0.10% max |
| Ni | 0.5% max |
| Al | 0.005% max |
| S | 0.08% max |
| Sb | 0.50% max |
| Si | 0.005% max |
Other Names:
SAE 64 Bearing Bronze, High-Leaded Tin Bronze 937, UNS C93700, CDA 937, SAE 64, ASTM B271, ASTM B505, ASTM B584, Federal QQ-C-390, MIL-B-11553 Comp 23
Available material forms:
- XRF: ~1/8" thick disc, ~1.5" diameter
- OES: ~0.75" thick disc, ~1.5" diameter
- Chips: 50g of chips
Please Contact Us if you would like to know the specific dimensions of a sample.

