- Have good sealing capability
- Are non-magnetic
- Are good electrical conductors
- Are good heat conductors
- May be anodized to increase corrosion resistance
- Are available in a wide variety of colors for instant and accurate thickness identification.
- AS9100:2016/ISO9001:2015 Certified
- DTCC Registration # is M28972
- US/Canada Defense Logistics Joint Registration #DD2345
- DFARS 252.225-7009 Compliant Metals
- Cage Code: 08555
Precision Round Copper Sealing and Crush Washers Manufactured by Brewster
The industrial sector uses copper where there is a need for ductility (plumbing or roofing) or electrical conductivity (electromagnets, electrical motors, or wave guides).
Copper washers are also used as crush washers to provide seals, primarily in the automotive industry.
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Our Copper Washers:
Brewster stocks pure copper also known as Electrolytic Tough Pitch (ETP) in 101 & 110 sheets.
The following are the types of Copper, tensile, yield and Rockwell Hardness we have readily available:
| Material | Condition | Tensile | Yield | Rockwell Hardness |
|---|---|---|---|---|
| MaterialC101 | ConditionH02 = Half Hard | Tensile43,500 | Yield36,300 | Rockwell HardnessB40 |
| MaterialC101 | ConditionH04 = Full Hard | Tensile50,000 | Yield45,000 | Rockwell HardnessB50 |
| MaterialC110 | ConditionO60 - Soft/Annealed | Tensile31,900 | Yield10,000 | Rockwell HardnessF40 |
| MaterialC110 | ConditionH02 = Half Hard | Tensile42,100 | Yield36,300 | Rockwell HardnessB40 |
| MaterialC110 | ConditionH04 = Full Hard | Tensile50,000 | Yield45,000 | Rockwell HardnessB50 |