INTERNATIONAL REFERENCES
Egm
OT80
En
CuZn20
DIN CEN
CW503L
ASTM(CDA)
C24000
AFNOR
CuZn20
BS
CZ103
JIS
C2400
MAIN CHARACTERISTICS
CuZn20 has excellent cold forming, good hot forming properties and is well suited for e.g. coinage, beating, embossing. This alloy has a higher strength than pure copper. It is principally used in jewellery, metal goods, watch industry and in electronic industry for installation parts.
It has a good resistance to fresh water, neutral or alkaline saline solutions, organic compounds as well as land, sea, and industrial atmosphere. Not particularly resistant to acids, hydrous sulphur compounds, hydrous ammonia in the non-stress-relieved condition. Low sensitivity to stress corrosion cracking. CuZn20 is not sensitive to dezincification, that could occur in water with high clorine content and low carbonat-hardness. Not resistant to oxidizing acids, hydrous sulphur components.
CHEMICAL COMPOSITION
Cu
[%]
79 ,0 - 81,0
Al
[%]
≤ 0,02
Fe
[%]
≤ 0,05
Ni
[%]
≤ 0,3
P
[%]
-
Pb
[%]
≤ 0,05
Sn
[%]
≤ 0,1
Zn
[%]
Rest
Σ other
[%]
≤ 0,1
FABRICATION PROPERTIES
COMPLIANCE
PHYSICAL PROPERTIES
| Density | 8.67 g/cm3 |
| Electrical Conducivity | 19 MS/m |
| Electrical Conducivity | 33 IACS % |
| Thermal Conducivity | 142 W/mK |
MECHANICAL PROPERTIES
| Temper | Tensile Strength Rm [N/mm2] |
Yeld Strength Rp0.2 [N/mm2] |
Elongation A50 [%] |
Hardness HV10 |
Grain size [mm] |
|---|---|---|---|---|---|
| R270 | 270-320 | ≤ 150 | ≥ 38 | - | - |
| H055 | - | - | - | 55-85 | - |
| G010 | - | - | - | ≤ 105 | ≤ 0.015 |
| G020 | - | - | - | ≤ 85 | 0.015-0,030 |
| G035 | - | - | - | ≤ 75 | 0,025-0,050 |
| R320 | 320-400 | ≥ 200 | ≥ 20 | - | - |
| H085 | - | - | - | 85-120 | - |
| R400 | 400-480 | ≥ 320 | ≥ 5 | - | - |
| H120 | - | - | - | 120-155 | - |
| R480 | ≥ 480 | ≥ 440 | - | - | - |
| H155 | - | - | - | ≥ 155 | - |
Please note: the above values are to be considered in compliance with UNI-EN 1652.
TYPES AND FORMAT AVAILABILITY
| Horizontal axis | |
|---|---|
| Thickness | da 0,2 a 3,00 mm |
| Widht | da 340 a 1050 mm |
| Internal diameter | 300 / 400 / 500 mm |
| External diameter | <1500 mm |
| Vertical axis | |
|---|---|
| Thickness | da 0,2 a 3,00 mm |
| Widht | da 4 a 500 mm |
| Internal diameter | 100 / 140 /300 / 400 / 500 mm |
| External diameter | <1500 mm |
| Drums | |
|---|---|
| Thickness | da 0,2 a 2,00 mm |
| Widht | da 4 a 60 mm |
| Internal diameter | 300 / 400 / 500 mm |
| External diameter | <1000 mm |
| Multistrips | |
|---|---|
| Thickness | da 0,2 a 1,5 mm |
| Widht | da 4 a 60 mm |
| Internal diameter | 300 / 400 / 500 mm |
| External diameter | <1500 mm |
Please note: The dimensions indicated are to be considered purely indicative. Specific requirements regarding width, thickness, internal and / or external diameter, must be evaluated and agreed upon when ordering.
OTHER SERVICES
Our Company offers a wide range of additional services, helping to satisfy the most varied needs. Surface treatments, like galvanic tinning, silvering, gold plating, as well selective plating, in order to improve the electrical and surface behavior in critical component conditions.