Overview
| Product characteristics | Good elasticity | Product name | Nickel cobalt alloy |
| Grade | 3j21 | producing area | Changzhou |
| Nickel content | 14%~16% | Impurity content | 0.001% |
Product Details
Changzhou Brilliance Special Steel Co.,Ltd
3J21 elastic alloy
Alloy 3J21 for elastic components（YB/T5253-1993）
(1) The brand and chemical composition are shown in Table 1.
Table 1 Grades and Chemical Composition of Alloy 3J21 for Elastic Components
Note: The size and appearance should comply with the relevant provisions of GB/T15006 "Elastic Alloys".
(2) The mechanical properties are shown in Table 2.
Table 2 Mechanical Properties of Alloy Materials in Delivery State
(3) The physical properties are shown in Table 3.
Table 3 3J21 alloy material in cold worked and aged conditionmaterialPhysical performance of
Note: The magnetic susceptibility K value is a numerical value under the electromagnetic unit system.
(4) Characteristics and Application: Non magnetic, high elasticity, high strength, and good fatigue resistance. Various instrument springs and other components working below 400 degrees Celsius.