Volfram legering ringen

Type	Density (g/cm3)	Tensile strength (MPa)	Elongation	Hardness (HRC)
85W-10.5Ni-4.5Fe	15.8-16.0	700-1000	20-33	20-30
90W-7Ni-3Fe	16.9-17.1	700-1000	20-33	24-32
90W-6Ni-4Fe	16.7-17.0	700-1000	20-33	24-32
91W-6Ni-3Fe	17.1-17.3	700-1000	15-28	25-30
92W-5Ni-3Fe	17.3-17.5	700-1000	18-28	25-30
92.5W-5Ni-2.5Fe	17.4-17.6	700-1000	25-30	25-30
93W-4Ni-3Fe	17.5-17.6	700-1000	15-25	26-30
93W-4.9Ni-2.1Fe	17.5-17.6	700-1000	15-25	26-30
93W-5Ni-2Fe	17.5-17.6	700-1000	15-25	26-30
95W-3Ni-2Fe	17.9-18.1	700-900	8-15	25-35
95W-3.5Ni-1.5Fe	17.9-18.1	700-900	8-15	25-35
96W-3Ni-1Fe	18.2-18.3	600-800	6-10	30-35
97W-2Ni-1Fe	18.4-18.5	600-800	8-14	30-35
98W-1Ni-1Fe	18.4-18.6	500-800	5-10	30-35
90W-6Ni-4Cu	17.0-17.2	600-800	4-8	25-35
93W-5Ni-2Cu	17.5-17.6	500-600	3-5	25-35