Refractory Metals Physical Properties Class B and C
Copper Alloy Physical Properties Refractory Metals
Minimum Physical Properties for Copper Alloys Group B & C
| GROUP B REFRACTORY METALS | HARDNESS ROCKWELL (HRB) ** |
CONDUCTIVITY % I.A.C.S. *** |
ULTIMATE COMPRESSIVE STRENGTH ksi |
|
|---|---|---|---|---|
| CLASS 10 | ROD, BAR, INSERTS | 72 HRB | 45% | 135 |
| CLASS 11 | ROD, BAR, INSERTS | 94 HRB | 40% | 160 |
| CLASS 12 | ROD, BAR, INSERTS | 98 HRB | 35% | 170 |
| CLASS 13 | ROD, BAR, PLATE, INSERTS | 69 HRB | 30% | 200 |
| CLASS 14 | ROD, BAR, PLATE, INSERTS, TUBE | 85 HRB | 30% | 88 |
| GROUP C DISPERSION STRENGTHENED COPPER | HARDNESS ROCKWELL (HRB) ** |
CONDUCTIVITY % I.A.C.S. *** |
YIELD STRENGTH ksi Typical (0.2% Offset) |
ULTIMATE TENSILE STRENGTH ksi |
ELONGATION % IN 1” GAUGE (Typical) |
|
|---|---|---|---|---|---|---|
| CLASS 20 | ROD, BAR, PLATE | 75 HRB | 75% | 75 | 80 | 20 |
* Conductivity = 1/.0058 (Resistivity) where: Conductivity is expressed in the units % IACS and resistivity is expressed in the units mWcm.
RWMA Table 1.8.4