non-magnetic Alloy
X55Ni40-Ultra
For Precision Components
- HRC 52+
- >1,600 MPa
- >800°C
| X55Ni40-Ultra |
|---|---|
| Relative Magnetic Permeability | < 1.001 |
| Residual Magnetism (nT) | ≤1 |
| Mean Coefficient of Linear Thermal Expansion ā(10-6/℃) | 20 ~ 100 ℃ 11.9 - 12.0 |
| Elastic Modulus (GPa) | 220–240 |
| Tensile Strength (MPa) | >1600 |
| Yield Strength (MPa) | >1200 |
| Hardness | >HRC52 |
| Density (g/cm3) | 7.6 |
| Poisson's Ratio | 0.31 |
| Salt Spray Test | >1200h |
Metallographic Structure
ferrite content: 0.01%
Relative Magnetic Permeability: 1.002 Non-Magnetic Steel
ferrite content: 6%
Relative Magnetic Permeability: 1.205
304 Stainless Steel
ferrite content: 1%
Relative Magnetic Permeability: 1.026
316L Stainless Steel
What makes it unique?
- Ultra-low magnetism: Residual magnetism ≤ 1 nT in the unmagnetized condition, relative permeability μr < 1.002
- High strength + high ductility: Up to 1200 MPa yield strength with ≥1600 MPa tensile strength and > HRC52
- Full product range: Rebar, plates, pipes, fasteners, welding wire, springs — complete non-magnetic solutions from a single source
Application Cases
- Quantum Sensing Platform — National Weak-Field Measurement Facility
- Pulsed High Magnetic Field Lab — HUST
- Medical Research Platform — Shandong University
- BEST Fusion Facility
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