High-Strength 18% Nickel-Silver Commercial Key Blanks (720 MPa Yield)
Engineering Overview: Metallurgical comparison of 18% nickel-silver alloys evaluating flexural fatigue life and cyclic bending resistance in commercial keys.
Technical & Engineering Specifications
| Alloy Grade | CuNi18Zn20 (18% Nickel-Silver / German Silver) |
|---|---|
| Application | Master Keys, Emergency Keys, Grade 1 Hardware |
| Tensile Strength | 720 MPa Ultra-High Yield |
| Fatigue Resistance | Withstands 100,000+ heavy torque cycles without bending |
Cyclic Key Blade Bending Fatigue
Commercial keys experience repeated twisting and bending forces when opening heavy mortise doors with stiff weatherstripping.
18% Nickel-Silver Performance
- Tensile Strength $>700\text{ MPa}$: Delivers 3x the flexural fatigue life of standard brass keys, preventing key blade snapping.
Frequently Asked Engineering & Selection Questions
Q1: How does this keying system optimize facility access?
Metallurgical comparison of 18% nickel-silver alloys evaluating flexural fatigue life and cyclic bending resistance in commercial keys.