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Home /CuZn 30
| Alloy Name | |
|---|---|
| UNS | C26000 |
| IS/ISO | CuZn30 |
| AMW-25 | CuZn30 |
| DIN CEN/TS 13388 | CW505L |
| JIS | C2600 |
70/30 Characteristics
CuZn30 Brass has outstanding deep drawing properties and hence is called deep-drawing or cartridge brass. It has good forming properties & mechanical strength.
This alloy is as per the RoHS specification.Thickness Range : 0.05mm to 4.00mm Width Range : 8mm to 400mm Surface Roughness: 0.15 to 0.25 Ra Scale Grain Size : Fine i.e. No Orange Peel effect on deep drawing. Coil Weight : 8Kgs/mm width .
| Chemical Composition | Weight percentage |
|---|---|
| Cu | 68.50-71.50 % |
| Pb | 0.05Max |
| Fe | 0.05 % Max |
| Zn | Reminder% |
| Total Impurity | 0.30 % Max |
| Main Applications |
|---|
| Electrical : Terminal Connectors,Flashlight Shells,Lamp Fixtures, Reflectors, Shells |
| Consumer : Snaps,Chain Links,Watch Parts, |
| Building Hardware : Locks,Push Plates,Finish hardware,Door Knobs. |
| Physical Properties Typical values in annealed temper at 20 °C |
| Physical Properties Typical values in annealed temper at 20 °C | ||
|---|---|---|
| Density | 8.53 | g/cm3 |
| Thermal expansion coefficient -191 .. 16 | 9.0 | 10-6/K |
| Specific heat capacity - 0 .. 300°C | 19.7 | 10-6/K |
| Thermal conductivity | 0.377 | J/(g•K) |
| Electrical conductivity (1 MS/m = 1 m/(O mm²)) | 126 | W/(m•K) |
| Electrical conductivity (IACS) | 16 | MS/m % |
| Thermal coefficient of electrical resistance (0 .. 200 C) | 1.5 | 10-3/K |
| Modulus of elasticity ( 1 GPa = 1 kN/mm²) cold formed | 99....115 | GPA |
| Mechanical Properties (EN 1652) | ||||
|---|---|---|---|---|
| Temper | Tensile Strength Rm MPa (N/mm2) | Yield Strength Rp0.2 MPa (N/mm2) | Elongation A50mm % | Hardness HV |
| O (SOFT) | 275 Min | 160 | 50 Min | 80 Max |
| HB (Half Hard) | 320 Min | 170 | 35min | 75 min |
| HB (Hard) | 345 Min | 200 | 20 min | 100 min |
| HD (Hard) | 405 Min | 260 | 5 min | 125 min |