Hot Selling Unequal Angle Bar 63*40*6mm SS400/S235JR Hot Rolled L-Shape Steel Profile for Engineering
Hot Selling Unequal Angle Bar 63*40*6mm SS400/S235JR Hot Rolled L-Shape Steel Profile for Engineering
63×40×6mm unequal angle steel, commonly used for building structures, support frames, and general steel fabrication. Available in various lengths and steel grades to suit different project requirements. Suitable for structural welding, frame fabrication, and general steelwork. Contact us for available specifications, stock, and pricing.
- Mill Test Certificate Provided
- Strict Quality Inspection
- Custom Sizes Available
- On-Time Global Delivery
Sky Steel Group manufactures and exports prime-grade 63×40×6mm unequal angle steel bars (L-profile steel) in hot-rolled black finish and hot-dip galvanized (HDG) condition. Produced strictly to international structural steel standards (ASTM A36, EN 10025 S275JR / S355JR, JIS G3101 SS400, GB/T Q235B / Q355B), this asymmetrical 63mm × 40mm section provides optimized directional load-bearing, excellent rigidity, and superior weldability for heavy industrial and transmission engineering.
Directional Load Bearing, Asymmetric Rigidity & Corrosion Protection
63×40×6mm unequal angle steel is engineered for structural applications where bending moments or connection clearances differ between principal axes. The 63 mm long leg provides enhanced cross-sectional inertia along the primary stress axis, while the 40 mm short leg minimizes dead weight and optimizes bolt-hole spacing in compact joints.
Available in standard mill-finish black steel or batch hot-dip galvanized with a heavy zinc coating mass (up to 85 µm / 600 g/m² per ASTM A123 / ISO 1461), our unequal angle bars withstand extreme weathering, coastal marine humidity, and industrial chemical environments. In-house processing services include fixed-length precision cutting (5.8m / 6m / 11.8m / 12m), CNC hole punching, slotted drilling, miter cutting, and pre-assembly marking.
63×40×6mm Unequal Angle Steel Specifications
| Item | Available Range / Specification |
|---|---|
| Product | Hot-Rolled Unequal Angle Steel Bar / L-Section Asymmetric Profile |
| Standard Dimensions | 63 mm × 40 mm × 6.0 mm (Long Leg A: 63mm, Short Leg B: 40mm, Thickness t: 6.0mm) |
| Theoretical Weight | 4.638 kg/m (Nominal weight per meter compliant with standard corner radiuses) |
| Dimensional Tolerance | Leg Widths: ±1.0 mm / Thickness: ±0.4 mm / Straightness: ≤ 2 mm/m (Compliant with EN 10056-2 / ASTM A6) |
| Steel Grades | ASTM A36, ASTM A572 Gr.50 / EN 10025 S275JR, S355JR, S355J2 / JIS G3101 SS400 / GB/T Q235B, Q355B |
| Applicable Standards | EN 10056, ASTM A36/A36M, JIS G3192, JIS G3101, GB/T 706, ISO 657-2 |
| Surface Finish | Hot-Rolled Mill Finish (Black) / Hot-Dip Galvanized (HDG) / Painted / Oiled / Shot Blasted (SA 2.5) |
| Galvanizing Standard | ASTM A123 / ISO 1461 / BS 729 (Zinc Coating: 45 µm – 85 µm / 320 – 610 g/m²) |
| Standard Lengths | 5.8m, 6.0m (for 20GP container) / 11.8m, 12.0m (for 40GP/40HQ container) / Custom Cut-to-Length |
| Fabrication Services | CNC Punching, Slotted Drilling, Laser/Plasma Cutting, Miter Sawing, Beveling, Robot Welding |
| Application | Power Transmission Towers / Substation Gantries / Bridge Truss Cross-Bracing / Ship Framing / Machinery Base Skid |
| Bundle Weight | 1.5 – 3.0 Metric Tons per bundle (Secured with heavy-gauge steel strapping and lifting slings) |
| Inspection & Certificate | EN 10204 3.1 Mill Test Certificate (MTC) / ISO 9001 / CE / SGS, BV, TUV Inspection Supported |
| Packaging | Seaworthy Export Bundles with Interlocked Stacking, Steel Strapping, Traceability Tags & Timber Dunnage |
Need a Direct Mill Quote for 63×40×6mm Unequal Angle Steel?
Send us your required steel grade, surface finish (Black / HDG), customized cut lengths, hole drilling drawings, and quantity for an instant FOB / CIF wholesale price.
Where Is 63×40×6mm Unequal Angle Steel Used?
Owing to its asymmetric geometric properties, high section modulus along the major axis, and high fabrication flexibility, 63×40×6mm unequal angle steel is widely utilized in high-voltage power transmission structures, structural warehouse cross-ties, equipment skids, and international containerized projects.
Power Transmission Towers & Substation Gantries
63×40×6mm hot-dip galvanized unequal angle steel is widely specified as diagonal bracing, horizontal diaphragm members, and redundant ties in high-voltage lattice transmission towers. The longer 63 mm leg accommodates standard multi-bolt connection patterns to transfer high axial tension and wind shear loads, while the thick zinc coating prevents rust over a 30+ year outdoor service life.
Mill Inventory Stock & Standardized Interlocked Bundles
Hot-rolled on continuous automated profile rolling mills to guarantee uniform corner radiuses, clean leg edges, and consistent 6.0 mm wall thickness. Finished unequal angle bars are nested tightly in interlocked rectangular bundles, strapped with high-tensile steel bands, and marked with full heat traceability tags for rapid warehouse handling.
Fixed-Length Container Loading & Export Logistics
To maximize container weight limits and ensure safe maritime transit, angle bars are precision cold-saw cut to standard 5.8m (for 20GP) or 11.8m (for 40GP/40HQ). Bundles are mechanically forklift-loaded, cross-chocked with solid timber dunnage, and secured with heavy-duty lashing straps to prevent transit shifting, bending deformation, or container wall damage at sea.
63×40×6mm Unequal Angle Steel FAQ
Answers to technical questions regarding asymmetric section properties, theoretical weights, galvanizing specifications, pre-punching fabrication, and global container shipping.
