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3J53 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 | Russia designation |
3J53 | 3J53 | ЭИ702,36HXTЮ |
C | ≤0.05 | Ni | 41.50～43.00 |
Si | ≤0.80 | Cr | 5.20～5.80 |
Mn | ≤0.80 | Ti | 2.30～2.70 |
P | ≤0.02 | Al | 0.50～0.80 |
S | ≤0.02 | Fe | Bal. |
(1) Strip
Soft | Hard | |
Yield Strength | ≥686 MPa (99.42 ksi) | ≥882 MPa (127.83 ksi) |
Tensile Strength | ≥1078 MPa (156.23 ksi) | ≥1225 MPa (177.54 ksi) |
Elongation | ≥8% | ≥5% |
(2) Wire
Hard | |
Tensile Strength | ≥1372 MPa (213.04 ksi) |
Elongation | 5% |
(3) Bar (Cold Drawn)
Hard | |
Tensile Strength | ≥1215MPa (176.07 ksi) |
Elongation | ≥5% |
(4) Bar, Plate (Hot-rolled, Hot forging)
Hard | |
Tensile Strength | ≥1078MPa (156.23 ksi) |
Elongation | ≥10% |
Density | 8.0 g/cm3 (0.29 lb/in3) |
Vickers hardness | 350～450 |
Resistivity | 1.1 µΩ•m |
(1) Bar, Plate (Hot-rolled, Hot forging)
Solution process: Heating temperature 970℃; Holding 15min; Water quenched.
Aging process: Heating temperature 730℃; Holding 240min; Furnace cooling below 300℃ and discharge.
(2) Strip
Aging process: Heating temperature 700℃; Holding 240min; Push the furnace cooled quickly; Long average temperature furnace cooling.
(3) Wire
Aging process: Heating temperature 630℃; Holding 240min; Push the furnace cooled quickly; Long average temperature furnace cooling.
