Nominal composition

EN numerical
Cu % Zn % Other % Application
CW502L 85 rest Decorative golden colour. Good corrosion resistance. Jewellery, coin, medals, screws, rivets, etc.
CW503L 80 rest Tombak. Sheet/strip products Decorative golden colour. Good formability and resistance to stress and zinc corrosion. Cladding, Medals, etc.
CW505L 70 rest Better than the EN CW508L in difficult deep drawing. Car coolers, lighting fixtures, buttons etc.
CW508L 63 rest Plain sheet metal alloy, suitable for normal deep drawing and punching. Containers, bowls, lighting fixtures, fittings, screws, rivets, etc.
CW610N 60 rest Pb0,5 Sheet metal for end covers for condensers and other heat exchangers.
CW607N 61 rest Pb1 Common pipe alloy, for fittings that require good cold formability and good machinability. Lighting fixtures, welding torches, paraffin stoves etc.
CW602N 62 Pb2As0,08 Machined and forged brass for water-related fitting components with high demands for zinc-corrosion resistance. Approved by the Swedish National Board of Housing, Building and Planning
CW612N 58 rest Pb1,75 Forged brass with good machinability, core-forged fittings.
CW614N 58 rest Pb3 Most common bar alloy – machined and forged brass. Screws, bolts, nuts, lock parts, electric fittings, washers, gears, etc.
CW622N 56 rest Pb0,5Al 0,5 Profile Alloy.
CW403J 64 rest Ni12Mn0,2 Contact springs, tableware, ornaments, signs, zippers, instruments, interior details etc.

Comparison with previous Swedish and foreign standards

European standard Sverige SS Iso
EN Chemical symbols
Sverige SS
CW502L CuZn15 5112 CuZn15
CW503L CuZn20 5114 CuZn20
CW505L CuZn30 5122 CuZn30
CW508L CuZn37 5150 CuZn37
CW610N CuZn39Pb0,5 5163 CuZn40Pb
CW607N CuZn38Pb1 5163 CuZn37Pb1
CW602N CuZn36Pb2As CuZn36Pb2AS
CW612N CuZn40Pb2 5168 CuZn40Pb2
CW614N CuZn39Pb3 5170 CuZn39Pb3
CW622N CuZn43Pb1Al 5272 CuZn43Pb1Al
CW403J CuNi12Zn24 Nickel brass (nickel silver) 5253 CuNi12ZN24

Physical properties – heat treatment

EN numerical
Density g/cm3 Melting temperature °C Length-expansion coefficient 20-300 °C (25-100 ° C) Thermal capacity at 20 °C kJ (kg °C) Resistivity at 20 °C for annealed material n Ωm Thermal conductivity at 20 °CW/(m•°C) Modulus of elasticity for annealed material N/mm2 Heat forming °C Soft annealing °C Thermal stress relieving °C
CW502L 8,75 1000-1025 19×10-6 0,38 47 160 122 000 750-900 425-600 250-300
CW503L 8,7 950-1000
CW505L 8,55 910-960 20×10-6 0,38 62 120 115 000 750-875 450-675 275-325
CW508L 8,45 900-920 21×10-6 0,38 66 125 109 000 725-825 450-600 275-325
CW610N 8,4 885-900 21×10-6 0,38 64 120 98 000 650-775 425-650 275-325
CW607N 8,4 885-900 21×10-6 0,38 64 120 97 000 650-775 425-650 275-325
CW602N 8,43
CW612N 8,5 875-890 21×10-6 0,38 62 120 96 000 650-775 425-650 275-325
CW614N 8,5 875-890 21×10-6 0,38 62 120 96 000 650-775 425-650 275-325
CW622N 8,4 870-885 21×10-6 0,38 55 110 83 000 575-675 425-650 275-325
CW403J 8,65 1000-1040 16×10-6 0,38 220 40 125 000 800-900 600-750 300-350

Strength

Sheet metal product

Round bar and round wire

EN Numerical
Grade Thickness

  

Yield point Rp0.2 Tensile strength Rm A50 mm HV Grade Dia-
meter
Rp0,2 Rm A HV
CW502L -02 (0,2)-1,5 70-140 270-310 25-50 55-80
-04 (0,2)-2,5 200-290 310-370 10-35 90-115
CW503L -04 (0,2)-2,5 240-360 360-440 15-40 95-130
CW505L -02 (0,2)-1,5 90-150 300-350 30-55 65-90
-04 (0,2)-2,5 220-340 350-420 15-45 95-125
CW508L -02 (0,2)-1,5 100-160 310-370 25-55 65-90 -02 1,5-2,5 100-160 310-390 30-55
-04 (0,2)-2,5 240-360 350-430 15-40 95-130 -04 1,5-2,5 360-490 440-540 3-20
CW610N -04 2,5- 200-390 350-470 20-50 100-140
CW607N -04 (5)-10 270-470 420-540 10-25 125-165
CW602N -00 ca 120 ca 330 ca 40 ca 75
-04 5-25 250-400 370-470 12-35 120-160
CW612N -00 ca 150 ca 410 ca 30 ca 100
CW614N -00 ca 150 ca 410 ca 30 ca 100
-04 (10)-25 310-490 460-560 12-25 125-170
CW403J -02 (0,2)-1,5 120-220 340-410 25-55 80-110 -02 1-2,5 120-220 340-410 25-50
-04 (0,2)-2,5 270-430 420-510 8-30 125-155 -04 0,4-2,5 390-560 490-590 3-8
-06 (0,5)-1,5 440-610 520-630 2-6 165-205

Round pipe

Extruded profile

EN Numerical Grade Thickness

  

Rp0,2 Rm A5 HV Grade Thickness Rp0,2 Rm A5 HV
CW508L -04 (1)-5 360-490 440-540 12-30 135-165
CW610N
CW607N (1)-5 240-490 410-550 15-35 120-170 -00 ca 130 ca 370 ca 35 ca 85
CW602N -10 160- 350- 15- 90-
CW612N -00 ca 150 ca 410 ca 30 ca 100
CW614N ca 150 ca 410 ca 30 ca 100 -00 ca 150 ca 410 ca 30 ca 100
180- 390- 10- 105- -10 180- 390- 10- 105-
CW622N -00 ca 160 ca 490 ca 20 ca 130

Explanation
Rp 0.2 = 0.2 boundary N/mm2
Rm = tensile strength N/mm2
HV = Vickers hardness
A5 = Elongation % gauge length 5.65 area
A50 mm ≈ Elongation %
A100 mm gauge length 50 each 100 mm