The core performance of SUS630 laminated steel plates is “high strength + corrosion resistance + excellent processing adaptability.” Details include:
1. Outstanding Mechanical Properties
* After precipitation-hardening treatment, yield strength reaches 1000–1100 MPa, tensile strength 1100–1300 MPa, far exceeding ordinary stainless steel.
* Hardness HRC28–38, excellent wear resistance, capable of withstanding high-frequency friction and impact loads.
* Laminated structure ensures dense microstructure, reduces stress concentration, and maintains good toughness at room temperature (impact energy ≥40J).

2. Excellent Corrosion Resistance
* Composition: 15.5–17.5% Cr and 3–5% Cu, forming a dense passive layer resistant to atmospheric, freshwater, and neutral salt solution corrosion.
* Stable in mild acidic/alkaline and marine salt environments, superior to ordinary martensitic stainless steels.
* Laminated surfaces are smoother, reducing adhesion points for corrosive media.

3. Strong Processing and Application Adaptability
* Good weldability; strength can be restored via post-weld aging.
* Cold working (bending, stamping, cutting) is feasible with slight process adjustments.
* High dimensional stability after lamination and heat treatment ensures precision in assembly.

4. Balance of Lightweight and Economy
* High strength allows thinner plates for lightweight design.
* Long service life and strong corrosion resistance reduce maintenance and replacement costs, improving long-term economic efficiency.