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Technical information sheets
- 1.0338 - DC04
- 1.1248 - C75S soft
- 1.1274 - C100S
- 1.2003 - 75Cr1
- 1.2379
- 1.3912 - Alloy I
- 1.3981 - Alloy K
- 1.4031Mo
- 1.4021 – 1.4034 – 1.4037
- 1.4310
- 1.4404
- 1.4529
- 1.4767 - heat resistant
- 1.4828 - heat resistant
- 2.0070 - Copper
- 2.0321 - Brass
- 2.1020 - Bronze
- 2.4068 - Nickel
- 2.4545 - Alloy Mu
- 2.4668 - Alloy 718
- 3.0205 - Alu
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Cold-rolled, spring-hard brass foil and brass band W.-Nr. 2.0321
1. Application examples
With a composition of 63% copper and 37% zinc, this material is the standard grade for spring-hard rolled brass for leaf springs, connectors and stamped parts.
This material is not magnetizable.
Further application examples:
Components of electrical engineering and precision mechanics (watch industry)
With a composition of 63% copper and 37% zinc, this material is the standard grade for spring-hard rolled brass for leaf springs, connectors and stamped parts.
This material is not magnetizable.
Further application examples:
Components of electrical engineering and precision mechanics (watch industry)
2. Material codes
German Norm: 2.0321, CuZn37
AISI:
UNS: C 27200
English Norm: CW508L
Frech Norm:
Japanese Norm:
3. Alloy Composition *
Cu: 62,0-65,5%
Zn: balance
Ni: max. 0,30%
Pb: max. 0,10%
Fe: max. 0,10%
Sn: max. 0,10%
Al: max. 0,05%
others: max. 0,10%
* the exact composition of each batch can be documented by a material certificate 2.2 or 3.1 according to DIN EN 10 204.
4. Delivery condition
Condition: cold rolled, not hardenable
Surface: not data available
Ultimate tensile strength: 370-650 N/mm² (depending on the thicknesses)
Further mechanical data: see chapter 7 and 8.
5. Sizes
thicknesses: 0,006-1,00 mm
raw material width: depending on the thicknesses 150 or 305 mm
Standardbreite: 150,0 and 305 mm (not in all thicknesses)
Lenghts: individual lengths from 5 to 10 000mm or as coil
German Norm: 2.0321, CuZn37
AISI:
UNS: C 27200
English Norm: CW508L
Frech Norm:
Japanese Norm:
3. Alloy Composition *
Cu: 62,0-65,5%
Zn: balance
Ni: max. 0,30%
Pb: max. 0,10%
Fe: max. 0,10%
Sn: max. 0,10%
Al: max. 0,05%
others: max. 0,10%
* the exact composition of each batch can be documented by a material certificate 2.2 or 3.1 according to DIN EN 10 204.
4. Delivery condition
Condition: cold rolled, not hardenable
Surface: not data available
Ultimate tensile strength: 370-650 N/mm² (depending on the thicknesses)
Further mechanical data: see chapter 7 and 8.
5. Sizes
thicknesses: 0,006-1,00 mm
raw material width: depending on the thicknesses 150 or 305 mm
Standardbreite: 150,0 and 305 mm (not in all thicknesses)
Lenghts: individual lengths from 5 to 10 000mm or as coil
6. Tolerances
thickness tolerace: T3
width tolerance: DIN EN 1791
straightness: normal
flatness: DIN EN 1791
7. Further mechanical data
Yield strength Rp0,2 : >500 N/mm² bei R550
Elongation A80: not specified at R550
If good tumbling is done, the following values can be achieved:
Reversed bending stress (Mean stress = 0):
The maximum value is approx. 1/3 of the tensile strength for brass if bending direction is at a 90° angle to the rolling direction
Fluctuating bending stress (Minimum stress = 0):
no data available, but the maximum value is lower than for the reversed bending stress.
As the fatigue strength depends on different factors like the corrosive conditions and the edge treatment, no definitive endurance limit values can be guaranteed.
At high forces or bending not in the right angle to the rolling direction the alloy CuBe2 is recommended (or hardened steels like 1.1274 or 1.4031Mo).
The highest application temperature is around 100° Celsius, depending on the load. Please note that Young's modulus values drop as temperature increases.
8. Physical properties
Density: 8,44 g/cm³
Thermal conductivity: 120 W/(m °C) depending on the temperature
Heat capacity: 377 J/(kg °C) medium value at 50 – 100 °C
Thermal expansion: 20,2 x 10 -6 (between 20 - 200 °C)
Electric resistance: 15µOhmcm
Modus of elasticity: 110 000 MPa at 20 °C
9. Blanking
We recommend a punch-to-die clearance of 4-10 % of the strip thickness.
The corner radius should be at least 0.25 mm and the punching die should be at least twice the strip thickness.
The pieces should then be tumbled to receive a good edge roundness.
10. Laser cutting
This alloy can be laser cut by solid state lasers.
11. Photo etching
This alloy is very easy to etch.
12. Bending
As this material is supplied in the temper rolled condition, the rolling direction is important regarding the bending. The suggested minimum bending radius depends on the tensile strength of the material.
Bending at right angle (90°) to the rolling direction:
t = strip thickness
Bending parallel to the rolling direction:
t = strip thickness
13. Flat grinding
Brass is not magnetic and can not be hold by magnetic clamping devices of flat grinding machines.
14. Welding
Brass is not suitable for welding due to a low evaporating temperature of zinc at 906°C.
Hard and soft soldering can be done easily.
15. Corrosion resistance
Brass has a good resistance against most organic fluids, water and water steam and different salt solutions, but at high chloride contents a corrosion due to “dezincification” can occur.
Important Annotation
The specifications which are given in this technical information sheet about the condition and application of the alloys are only for reference and are no confirmation about certain performances and characteristics.
The information correspond to our own experiences and experiences of our suppliers.
We can not guarantee for the results during processing and utilisation.
thickness tolerace: T3
width tolerance: DIN EN 1791
straightness: normal
flatness: DIN EN 1791
7. Further mechanical data
Yield strength Rp0,2 : >500 N/mm² bei R550
Elongation A80: not specified at R550
If good tumbling is done, the following values can be achieved:
Reversed bending stress (Mean stress = 0):
The maximum value is approx. 1/3 of the tensile strength for brass if bending direction is at a 90° angle to the rolling direction
Fluctuating bending stress (Minimum stress = 0):
no data available, but the maximum value is lower than for the reversed bending stress.
As the fatigue strength depends on different factors like the corrosive conditions and the edge treatment, no definitive endurance limit values can be guaranteed.
At high forces or bending not in the right angle to the rolling direction the alloy CuBe2 is recommended (or hardened steels like 1.1274 or 1.4031Mo).
The highest application temperature is around 100° Celsius, depending on the load. Please note that Young's modulus values drop as temperature increases.
8. Physical properties
Density: 8,44 g/cm³
Thermal conductivity: 120 W/(m °C) depending on the temperature
Heat capacity: 377 J/(kg °C) medium value at 50 – 100 °C
Thermal expansion: 20,2 x 10 -6 (between 20 - 200 °C)
Electric resistance: 15µOhmcm
Modus of elasticity: 110 000 MPa at 20 °C
9. Blanking
We recommend a punch-to-die clearance of 4-10 % of the strip thickness.
The corner radius should be at least 0.25 mm and the punching die should be at least twice the strip thickness.
The pieces should then be tumbled to receive a good edge roundness.
10. Laser cutting
This alloy can be laser cut by solid state lasers.
11. Photo etching
This alloy is very easy to etch.
12. Bending
As this material is supplied in the temper rolled condition, the rolling direction is important regarding the bending. The suggested minimum bending radius depends on the tensile strength of the material.
Bending at right angle (90°) to the rolling direction:
410-490 | 480-560 | 550-640 | >630 N/mm² | |
Up to 0,50 mm | ca. 0,5 x t | ca. 0,75 x t | ca. 1,0 x t | ca. 2,0 x t |
0,50-1,00 mm | No data
available | No data
available | No data
available | No data
available |
Bending parallel to the rolling direction:
410-490 | 480-560 | 550-640 | >630 N/mm² | |
Up to 0,50 mm | ca. 0,5 x t | ca. 0,5 x t | ca. 2,0 x t | ca. 6,0 x t |
0,50-1,00 mm | No data
available | No data
available | No data
available | No data
available |
13. Flat grinding
Brass is not magnetic and can not be hold by magnetic clamping devices of flat grinding machines.
14. Welding
Brass is not suitable for welding due to a low evaporating temperature of zinc at 906°C.
Hard and soft soldering can be done easily.
15. Corrosion resistance
Brass has a good resistance against most organic fluids, water and water steam and different salt solutions, but at high chloride contents a corrosion due to “dezincification” can occur.
Important Annotation
The specifications which are given in this technical information sheet about the condition and application of the alloys are only for reference and are no confirmation about certain performances and characteristics.
The information correspond to our own experiences and experiences of our suppliers.
We can not guarantee for the results during processing and utilisation.