SPA-H is a high-strength low-alloy weathering steel produced in accordance with multiple international standards, including AISI, ASTM, BS, DIN, and JIS.
Manufactured mainly by hot rolling, SPA-H corten steel plate and coil are specifically designed for structural applications exposed to harsh atmospheric environments.
JIS G3125 SPA-C material specifications
| JIS G3125 SPA-C material thickness | SPA-C weathering steel sheet oiling | JIS G3125 SPA-C meaning |
|---|---|---|
| 0.6 or more and 2.3 or less (in mm) | SPA-C are oil coated |
JIS G3125 is a Japanese standard C means Cold Rolled |
| Yeild strength | Elongation | JIS G3125 SPA-C steel surface |
| ≥ 450 MPa | ≥ 26 |
Clean Blasting Painting |
| Temperature Range | Life | Workability |
| 2400 to 3000 mm | Up to 25 Years |
Hot working Gas cutting Cold working |
| Certification of JIS G3125 SPA-C steel sheet | Advantages | Density |
|
100% radiography test report Raw materials certificate Third party inspection report Certificate of origin legalized EN 10204/3.1B |
Higher mechanical strength Higher tensile strength |
7.8 g/cm³ |
| Melting point | JIS SPA-C heavy plates welding required | JIS G3125 SPA-C Corten steel strips properties |
|
1460 °C 2650 °F |
Gloves Wire brushes Welding machine (MIG, TIG, or stick) Welding helmet Chipping hammer Jacket or apron Respirator mask Clamps |
Versatility Low maintenance Weldability Weather resistance High strength
|
| Applications | Thermal Expansion | Thermal Conductivity |
|
Nuclear industries Power generation Infrastructure projects Gas and oil industries Petrochemical Chemical industries Fertilizers |
13 µm/m-K |
42 W/m-K 24 BTU/h-ft-°F |
Mechanical properties of CNS SPA-C heavy plates
| Grade | SPA-C |
|---|---|
| Yieldstrength | ≥325MPa |
| Tensilestrength | ≥450MPa |
| Elongation | ≥26 |
Chemical composition of JIS SPA-C cold rolled plate
| 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 |
Tensile properties of JIS G3125 SPA-C Corten steel plate
| Grade | JIS G3125 Grade SPA-C | |||
|---|---|---|---|---|
| Elastic modulus | Elongation A5 | Poisson's ratio | Tensile strength | Yield strength |
| 190 – 210 GPa at 20 °C | 26 % at 20 °C | 0.3 [-] at 20 °C | 450 MPa at 20 °C | 315 MPa at 20 °C |
What is SPA-C corten weathering steel plate equivalent grades
The equivalent grades of SPA-C corten weathering steel plate include HW350, SPA-H JIS G3125, ASTM A242 (COR-TEN A), ASTM A588 (COR-TEN B), S355J2WP+N, S355J2W+N, S355JOWP, S355JOW, S355J2W, 1.8946, 1.8965, SAILCOR IRSM41-97.
What is SPA-C weathering steel?
SPA-C is a type of atmospheric corrosion-resistant steel (Corten steel) designed for long-term outdoor exposure. It forms a stable, protective rust layer that prevents further corrosion, reducing maintenance needs.
What are the main applications of SPA-C steel?
SPA-C is commonly used for architectural facades, outdoor sculptures, bridges, retaining walls, garden landscapes, and industrial equipment where durability and aesthetics are important.
Can SPA-C steel be welded or processed?
Yes. SPA-C can be cut, welded, bent, and formed using standard steel processing methods. Preheating may be recommended for thick plates to avoid welding cracks.
Where can I buy SPA-C steel?
SPA-C steel is available from specialized steel suppliers and distributors. GNEE offers a wide range of SPA-C products in various sizes and forms.
