Factory-Direct Cut-to-Length Steel Sheets & Custom Corrugated Roofing Plates
Authentic Steel provides industrial-grade steel sheets and structural steel plates engineered for steel structure fabricators, roofing contractors, and machinery enclosure manufacturers worldwide. Operating from our advanced steel processing center near Tianjin Port, China, we convert prime master coils into high-precision, flat-cut sheets and engineered corrugated profiles. By delivering custom length-cut plates directly to your job site or fabrication facility, we assist global B2B buyers in eliminating secondary shearing overheads, minimizing material scrap rates, and accelerating project assembly timelines.
Cut-to-Length Precision Controls & Flatness Optimization
Processing flat steel sheets from heavy coils requires specialized uncoiling, roller leveling, and flying-shear shearing machinery to eliminate internal stress and residual coil memory. Authentic Steel operates high-speed hydraulic leveling lines that guarantee exceptional dimensional accuracy across every sheet batch:
Length & Diagonal Tolerances: Cut-to-length accuracy controlled within ±0.5 mm, with diagonal squareness deviations held under 1.0 mm to ensure rapid alignment during welding and bolting.
Leveling & Shape Control: Roller-levelers reduce cross-bow, center buckles, and wavy edges, delivering flat sheet surfaces required for automatic laser cutting, CNC punching, and bending operations.
Corrugation Profiling Options: Our cold roll-forming machines press flat galvanized and PPGI sheets into high-rib (Trapezoidal / IBR) and sinus-wave corrugated profiles optimized for structural load-bearing capacity and rapid rainwater drainage.
Material Grade Portfolio & Heavy-Duty B2B Applications
We supply cut-to-length steel sheets and corrugated plates across multiple metallic coatings and structural grades to match your precise engineering drawings:
Galvanized & Galvalume Sheets (GI / GL): Available in DX51D+Z, SGCC, and S350GD grades (Zinc Z40–Z275, Aluzinc AZ30–AZ150) for agricultural siding, HVAC duct panels, and prefabricated building panels.
Prepainted Corrugated Sheets (PPGI / PPGL): Supplied in full RAL colors with PE, HDP, or PVDF coatings for commercial roofing, wall cladding, and architectural sandwich panels.
Hot Rolled Heavy Plates (HRC / Structural): Available in Q235B, Q355B, ASTM A36, and S235JR grades for truck bed flooring, base plates, bridge structures, and industrial machinery frames.
Checkered / Diamond Pattern Sheets: Featuring raised teardrop patterns for non-slip industrial walkways, stair treads, and transport flooring.
Export Bundle Packaging & Logistics Standards
To protect cut sheets against edge deformation, surface scratching, and saltwater oxidation during transit, Authentic Steel enforces heavy-duty B2B export packaging. Flat sheets and corrugated profiles are stacked over wooden skids, wrapped in heavy-gauge VCI anti-rust paper, fully enclosed with galvanized steel protective covers, and bound with high-tensile steel straps. Contact our technical sales engineering department to request Mill Test Certificates (MTC compliant with EN 10204 3.1), section modulus tables, and direct FOB/CIF container quotes.
