Products Description
SPA-C steel plate is a type of atmospheric corrosion-resistant steel, where the letter "C" stands for Cold-rolled. SPA-C steel plate belongs to cold-rolled steel with a thickness range of 0.6mm - 2.3mm. Its strength is lower than that of SPA-H.

SPA-C weathering steel plate is commonly used in engineering machinery, towers, containers, and vehicle manufacturing.
specifications
Thickness: 3mm--150mm
Width: 30mm--4000mm
Length: 1000mm--12000mm
Standard: ASTM EN10025 JIS GB
Mechanical properties
| Grade | SPA-C |
|---|---|
| Yieldstrength | ≥325MPa |
| Tensilestrength | ≥450MPa |
| Elongation | ≥26 |
Chemical composition
| Grade | SPA-C |
| C≤ | 0.12 |
| Si | 0.25~0.75 |
| Mn | 0.20~0.50 |
| P | 0.070~0.150 |
| S≤ | 0.04 |
| Cu | 0.25~0.60 |
| Cr | 0.30~1.25 |
| Ni≤ | 0.65 |
Features

High Atmospheric Corrosion Resistance – Self-protective rust layer extends service life
Excellent Mechanical Strength – Maintains stability under high loads
Good Weldability & Formability – Suitable for complex fabrication projects
Low Maintenance – Minimal need for painting or coatings in most environments
Applications
SPA-C Weathering Steel Plate is widely used in structures requiring both strength and resistance to atmospheric corrosion, such as:

- Bridges and overpasses
- Building facades and roofing
- Railway rolling stock
- Shipping containers
- Towers, poles, and outdoor sculptures
- Industrial machinery housings
As our business is getting larger and larger in the world, JIS G3125 SPA-C High strength weathering steel plate can be seen everywhere.If you had any question at JIS G3125 SPA-C steel sheet or service. Please contact our after service department to get faster reply.



















