Description
CDA 693 High-Performance Lead-Free Brass Alloy Certified Reference Material (CRM)
This CDA C693 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 693 Brass Chemical Composition:
| Element | Composition |
| Cu | 75.4% |
| Sb | 0.014% |
| Ar | 0.0010% |
| B | 0.0008% |
| Fe | 0.011% |
| Pb | 0.042% |
| Ni | 0.002% |
| P | 0.09% |
| Si | 3.09% |
| Ag | 0.0017% |
| S | 0.0016% |
| Sn | 0.006% |
| Zn | 21.3% |
CDA 673 Pb-Free Brass Chemical Range:
| Element | Composition |
| Cu | 73-77% |
| Pb | 0.09% max |
| Sn | 0.20% max |
| Zn | Remainder |
| Fe | 0.10% max |
| P | 0.04-0.15% |
| Ni | 0.10% max |
| Mn | 0.10% max |
| Si | 2.7-3.4% |
Other Names:
Brass 693, UNS C69300, ECO BRASS, C693 Lead-Free Brass, C693 Silicon Brass, ASTM B371/B371M, ASTM B124/B124M, ASTM283/283M, NSF/ANSI/CAN 61-2022
Available material forms:
- XRF: ~1/8" thick disc, ~1.5" diameter
- OES: unavailable
- Chips: 50g of chips
Reference Material (RM):
A reference material, or RM, is a material with a known grade and/or chemical composition that is typically used for alloy or grade identification.
Certified Reference Material (CRM):
A certified reference material, or CRM, is a material that has been thoroughly analyzed and characterized using multiple validated methods to determine its chemical composition. The results of these analyses are then used to establish certified values, along with associated uncertainties. CRMs are produced and certified by accredited organizations or laboratories following internationally recognized standards, such as ISO Guide 34 (ISO 17034).
Please Contact Us if you would like to know the specific dimensions of a sample.