Information about high tensile copper
Lagermetall AB have during year 2004, been given the possibility to offer our clients and the market, a large program of high tensile copper alloys ( W-alloys). These W-alloys have the following characteristica:
W-alloys - A large series of high tensile copper alloys, well suited for applications where demands are materials with excellent abilities when it comes to thermal- and electrical- conductivity, and also high mechanical properties.
Ex. on areas of use are e.g. various sorts of welding-rods and -electrodes, parts for press-casting aluminum, moulds for casting brass and various parts in the tooling for injection moulding of plastic alloys etc.
Sprayforming and other low alloyed coppers
(limited stock, alt. 1-2 weeks deliverytime)
| Alloy name | Content (nom.values) |
Compareable alloys | Can be supplied as (shape/form) |
||
|---|---|---|---|---|---|
| Forged materl. | Castings | Extruded | |||
| BC-8 Spray- forming |
Cu Rest Sn 13.5 Pb 0.5 Max. |
Unnormed special-alloy. Can replace Beryllium- copper from a hardness point of view |
X |
X |
|
| LV 7 Spray- forming |
Cu Rest Mn 20 Ni 20 |
Unnormed special-alloy. Can replace Beryllium- copper from a hardness point of view |
X |
X |
|
| W130 | Cu Rest Be 2,0 Övr. 0.5 Max. |
EN CW 101 C Cu Be2, Type A 4/2 |
X | X |
X |
| W200 | Cu Rest Ni > 2.5 Si 1.0 Cr < 0.6 |
EN CW 112 C Similar conductive abilities as Beryllium-copper |
X | X |
X |
| W240 normal W260 extrahård |
Cu Rest Co 1.0 Ni 1.0 Be 0.5 |
EN CW 103 C Cu Co1 Ni1 Be, Typ A 3/1 |
X X |
X X |
|
| W340 | Cu Rest Cr 0.4-1.0 Zr 0.15 Övr. 0.4 Max. |
EN CW 106 C CuCrZr Typ A 2/2 |
X | X |
X |
continue
| Alloy name | Hardness Brinell HB |
Tensile strength Rm N/ mm² |
Yield strength Rp 0.2 N/ mm² |
Elong. in % A5 | Density g/cm3 |
Melting temp. °C Liq. |
Anne- aling temp. °C |
Modulus of elast. KN/ mm² |
|---|---|---|---|---|---|---|---|---|
| BC-8 Spray- forming |
250 | > 950 | > 900 | 5 | 8.95 | 85 | ||
| LV 7 Spray- forming |
400 | > 1200 | > 1100 | < 1.0 | 8.2 | 650-750 | 125 | |
| W130 | 360 | 1150 | 1000 | 3 | 8.25 | 950 | 300 | 133 |
| W200 | 170-220 | > 600 | 500 | > 10 | 8.7 | 1150 | 480 | 137 |
| W240 normal W260 extrahård |
250 270 |
780 820 |
700 730 |
10-15 10-15 |
8.8 8.8 |
1050 1050 |
480 480 |
135 135 |
| W340 | 105-170 | 400 | 350 | 15 | 8.9 | 1080 | 500 | 138 |
continue
| Alloy name | Thermal cond. at 20°C W/m•k |
Coeff. of thermal expansion 10•6/K |
Electrical cond. m/ohm • mm2 |
Machine- ability (Free cutting brass = Index 100/100) |
Description of the alloy Areas of use |
|---|---|---|---|---|---|
| BC-8 Spray- forming |
41 | 5 | 70/100 | Sprayformed tinbronze alloy with high mechanical values. Easy to machine. Low conductivity (thermal-/electric-) Springs, kopplingsdetaljer etc. | |
| LV 7 Spray- forming |
10 | 1.3 | 40/100 | Very good corrosion resistance. Non-magnetic material. Springmaterial, drilling equipm. within off-shore, fine mechanical details. | |
| W130 | 120 | 17 | 12-15 | Very wear-resistant material w. very good conductivity (thermal-/electric-) Welding-electrodes, membranes, dies for plastic ind., non-magnetic, sparkfree. |
|
| W200 | 200 | 16 | 26-28 | Very wear-resistant materiasl w. very good conductivity (thermal/electric-) All alloys can be used in similar fields. Injection moulding details for plastic ind., moulds for press/die-casting aluminum, dies for brass casting, welding-electrodes for resistance-welding of mainly stainless steel. Machined parts were good/high thermal- and electrical- conductivity is needed. |
|
| W240 normal W260 extra hard |
250 260 |
17 17 |
26-30 26-30 |
see above | |
| W340 | 330 | 17 | 44-49 | Medium- to high- strength material. Very high conductivity. A common material for welding electrodes, also used in manuf. dies for continous casting etc. |
