Copper and copper alloy plates, sheets and strips for general applications
MECHANICAL PROPERTIES OF BRASS PLATES, SHEETS AND STRIPS
EN 1652 "Copper and copper alloys – Plate, sheet, strip and circles for general purposes"
EN 1653 "Copper and copper alloys – Plate, sheet and circles for boilers, pressure vessels and hot water storage units"
| Alloy designation | Description | Typical mechanical properties | Remarks | ||||
|---|---|---|---|---|---|---|---|
| Chemical symbol | Numerical designation | Yield strength Rp0.2% (N/mm²) | Tensile strength (N/mm²) | Elongation % | Hardness (HV) | ||
| COLD ROLLED BRASS SHEETS AND STRIPS | (a) (h) | (a) (h) | (a) (h) | (a) (h) | |||
| CuZn5 | CW500L | Cartridge primer brass | 100 370 | 250 420 | 50 4 | 60 130 | Limited industrial use for ammunition primers |
| CuZn10 | CW501L | Decorative gilding brass | 100 385 | 265 450 | 55 8 | 60 140 | Alloys used for architectural metalwork and jewellery due to their golden colour and their suitability for brazing and enamelling. |
| CuZn15 | CW502L | 100 400 | 290 465 | 60 10 | 65 150 | ||
| CuZn20 | CW503L | 110 450 | 310 540 | 65 12 | 70 160 | ||
| CuZn30 | CW505L | 70/30 Brass (Cartridge Brass) | 125 450 | 325 540 | 70 15 | 70 170 | Brass for deep drawing with maximum ductility among Cu-Zn alloys. |
| CuZn36 | CW507L | 2/1 Brass | 124 450 | 325 540 | 65 10 | 70 170 | Brass with good cold working properties. |
| CuZn37 | CW508L | Common Brass (Base Brass) | 125 550 | 355 585 | 55 7 | 80 180 | General-purpose alloy suitable for standard processing. |
| CuZn39Pb0.5 | CW610N | 60/40 Brass | 180 350 | 355 465 | 45 25 | 90 140 | Brass with good cold working properties. |
| CuZn40 | CW509L | Lead-free 60/40 Brass | 355 465 | 45 25 | 90 140 | Brass with good hot working properties, which can also be cold worked to a limited extent. | |
| CuZn20Al2As | CW702R | Aluminium Brass | 340 390 | 60 50 | 75 100 | The addition of aluminium and tin provides improved corrosion resistance compared to unalloyed brass. | |
| CuZn36Sn1Pb | CW712R | Naval Brass | 370 525 | 45 20 | 95 160 | ||
| CuZn38Pb2 and CuZn39Pb2 | CW608N and CW612N | Leaded Brass for Watchmaking | 170 495 170 495 | 420 590 420 590 | 30 5 30 5 | 110 185 110 185 | In the hard condition, these brasses can be precision blanked with minimal burr formation, making them ideal for watch gears, clock mechanisms and musical instruments. Also suitable for engraving. |
| CuZn35Pb2 | CW601N | 125 465 | 340 540 | 50 7 | 75 175 | ||
| CuZn35Pb1 | CW600N | 108 325 | 325 525 | 50 7 | 70 170 | ||
| HOT ROLLED BRASS PLATES | |||||||
| CuZn39Pb0.5 | CW610N | 60/40 Brass | 170 | 385 | 40 | 110 | Used for precision components, valve parts, fittings and condenser plates due to its excellent machinability, moderate corrosion resistance and good cold forming properties. |
| CuZn40 | CW509L | Lead-free 60/40 Brass | 170 | 385 | 40 | 110 | |
| CuZn20Al2As | CW702R | Aluminium Brass | 170 | 403 | 35 | 110 | These brasses offer higher corrosion resistance (especially in seawater) than 60/40 brass. |
| CuZn36Sn1Pb | CW712R | Naval Brass | 120 | 340 | 55 | 85 | |
| CuZn30As | CW707R | Arsenical 70/30 Brass | 110 | 325 | 55 | 85 | |
| CuZn30 | CW505L | 70/30 Brass (Cartridge Brass) | 110 | 325 | 55 | 85 | |
Notes:
(1) Intermediate tempers between annealed and hard are available and, for some materials, up to extra hard and extra hard spring temper.
(A) – annealed (H) – hard