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3J58 has high modulus of elasticity and strength, low temperature coefficient of elastic modulus, good velocity consistency. It applies to a variety of diaphragm, diaphragm, bellows, springs and other elastic element in instrument industry. Similar alloy's names in different standards:
Beiye designation | China Standard designation | International designation |
3J58 | 3J58 |
C | ≤0.05 | Ni | 43～43.6 |
Si | ≤0.80 | Cr | 5.2～5.60 |
Mn | ≤0.80 | Ti | 2.3～2.70 |
P | ≤0.02 | Al | 0.5～0.80 |
S | ≤0.02 | Fe | Bal. |
Temperature coefficient of frequency (βf) | -5～+5 (10-6/℃) |
Density | 8.0 g/cm3 (0.29 lb/in3) |
Vickers hardness | 350～450 |
Resistivity | 1.1 µΩ•m |
Solution Process: Heating temperature 1050℃; Holding 20 min; Water quenched.
Aging Process: Heating temperature 530℃; Holding 120 min; Furnace cooling to below 200℃and discharge.
