GNEE recently completed an export order of 69.85 tons of SPA-C Cold Rolled Weathering Steel Coils for a customer in Australia. This shipment included two specifications, both with a thickness of 0.7 mm, and different widths of 940 mm and 990 mm.
Before delivery, the materials underwent dimensional inspection, surface inspection, and product identification checks to verify their condition against the order requirements.
Shipment Details
| Item | Specification | Quantity |
|---|---|---|
| SPA-C Cold Rolled Weathering Steel Coil | 0.7 × 940 mm | 28.66 tons |
| SPA-C Cold Rolled Weathering Steel Coil | 0.7 × 990 mm | 41.19 tons |
| Total | Two specifications | 69.85 tons |
Destination: Australia
Material Grade: SPA-C
Product Form: Cold Rolled Steel Coil
Inspection Report Date: October 29, 2026
Quality Certificate Standard: MTS12702004-2018
The two coil specifications were supplied according to the customer's order requirements. As a professional steel supplier, GNEE can support customers with different coil widths, thicknesses, and supply requirements according to project specifications.
What Is SPA-C Cold Rolled Weathering Steel?
SPA-C Cold Rolled Weathering Steel is an atmospheric corrosion-resistant steel grade used in thin-gauge steel products. SPA-C is commonly associated with JIS G 3125 weathering steel, where it is classified as cold-rolled steel sheet and strip. Its alloy design uses elements such as copper, chromium, and phosphorus to improve resistance to atmospheric corrosion.
Unlike ordinary carbon steel, weathering steel can gradually develop a more protective rust layer under suitable atmospheric exposure conditions.
This layer can slow down further corrosion, helping reduce the need for frequent repainting in appropriate applications. However, its performance depends on the actual environment, including wet-dry cycles, air pollution, salt exposure, and drainage conditions.
Actual Inspection Data of SPA-C Cold Rolled Steel Coils
For this Australian order, GNEE arranged dimensional and surface inspections before delivery. The inspection report dated October 29, 2026, recorded the measured thickness and width of the supplied coils, together with their surface condition and identification status.
Dimensional Inspection
| Inspection Item | Order Specification | Measured Result |
|---|---|---|
| Thickness | 0.70 mm | 0.699 mm / 0.704 mm |
| Width | 940 mm | 940 mm |
| Width | 990 mm | 992 mm |
Mechanical Properties
The quality certificate provided mechanical property data for the 0.7 × 940 mm SPA-C coil specification. The recorded values were as follows:
| Mechanical Property | Recorded Value |
|---|---|
| Yield Strength | 424 MPa |
| Tensile Strength | 543 MPa |
| Elongation | 28.0% |
Surface and Appearance Inspection
The inspection report recorded that the coil surfaces had no dents or scratches. Slight surface rust was observed and accepted according to the inspection result. Product identification was also checked and recorded as qualified.
Surface Finish: D Matte
Oiling Amount: 500 mg/m² on each surface
The recorded surface finish and oiling information are important when evaluating the material for subsequent storage, forming, surface treatment, or other manufacturing processes. Customers should confirm the required surface condition and oiling level according to their own production requirements.
Applications of SPA-C Cold Rolled Weathering Steel
Due to its atmospheric corrosion resistance and cold-rolled product form, SPA-C Cold Rolled Weathering Steel can be considered for various thin-gauge steel applications. The actual suitability depends on the working environment, design requirements, forming method, and applicable material specifications.
1 Railway Rolling Stock and Vehicle Components
SPA-C weathering steel is associated with railway rolling stock applications. Cold-rolled steel products can be considered for selected vehicle body panels and formed components where the required thickness, strength, and corrosion resistance are suitable.
2 Architectural Cladding and Building Components
SPA-C Cold Rolled Weathering Steel can be considered for selected exterior building components, decorative metal panels, and architectural elements. Its cold-rolled surface and thin-gauge supply form can be useful for projects requiring relatively precise sheet dimensions and formed metal parts.
3 Outdoor Metal Enclosures and Equipment Components
For equipment and structures exposed to outdoor atmospheric conditions, weathering steel may offer advantages where its corrosion resistance matches the service environment. SPA-C can be evaluated for selected metal enclosures, covers, and formed components based on the required design and exposure conditions.
4 Industrial Sheet Metal Products
Cold-rolled SPA-C steel coils can also be considered for selected industrial sheet metal products that require thin-gauge material, a relatively uniform surface, and atmospheric corrosion resistance. Before production, the forming process and service conditions should be evaluated to ensure the material is suitable.
SPA-C Steel Coil Supply and Processing Services from GNEE
As a steel supplier serving international customers, GNEE provides weathering steel products in different forms and specifications. For customers sourcing SPA-C Cold Rolled Weathering Steel, we can discuss the required thickness, width, coil weight, surface condition, and inspection requirements before arranging supply. Our available services can include:
1. Customized Coil Specifications
Supply according to requested thickness, width, and coil weight, subject to production and availability.
2. Slitting and Cutting
Arrange coil slitting or cutting services according to the required dimensions and downstream production needs.
3. Surface and Dimensional Inspection
Provide dimensional checks, surface inspections, and relevant quality documentation according to the order requirements.
4. Quality Documentation
Provide available quality certificates and inspection records to help customers verify the material grade, specifications, and recorded test results.
5. Export Order Coordination
Support communication on product specifications, inspection requirements, delivery arrangements, and export documentation.
Why Choose GNEE for SPA-C Cold Rolled Weathering Steel?
Choosing the right SPA-C Steel Supplier is important for maintaining material consistency and meeting project requirements. GNEE focuses on steel product supply and international order coordination, helping customers manage the process from specification confirmation to quality documentation and delivery arrangements.
Contact GNEE For SPA-C Cold Rolled Weathering Steel Coils
Are you looking for a reliable supplier of SPA-C Cold Rolled Weathering Steel for your next project? GNEE can help you review material specifications, confirm coil dimensions, provide available quality documentation, and discuss customized processing requirements.
Whether you need SPA-C Weathering Steel Coil, SPA-C Cold Rolled Steel Sheet, or other atmospheric corrosion-resistant steel products, our team is ready to discuss your requirements and provide a suitable supply proposal.
Contact GNEE Today for SPA-C Steel Coil Specifications and a Competitive Quotation!
