63×63×6mm Hot Rolled Equal Angle Bar SS400 for Solar & Construction

63×63×6mm Hot Rolled Equal Angle Bar SS400 for Solar & Construction

63×63×6mm equal 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.

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Sky Steel Group manufactures and exports prime-quality 63×63×6mm equal angle steel bars (hot-rolled L-profile angle iron) in mill-finish black and hot-dip galvanized (HDG) surface conditions. Produced to rigorous international structural steel standards (ASTM A36, JIS G3101 SS400, EN 10025 S275JR / S355JR, GB/T Q235B / Q355B), this standard 63mm × 63mm section provides symmetrical cross-sectional strength, high torsional rigidity, and reliable weldability for heavy steel building fabrication, portal framing, and high-wind structural bracing.

Symmetrical Structural Rigidity, Load-Bearing Strength & Anti-Corrosion Protection

63×63×6mm equal angle steel (MS angle bar 63×6) delivers balanced moments of inertia along both principal axes ($I_x = I_y$), making it an ideal choice for multi-directional stress distributions in truss web members, column cross-ties, and purlin bracing. The true 90-degree internal angle and uniform 6.0 mm leg thickness ensure stable joint fit-up with gusset plates, standard bolts, and automated fillet welding lines.

To counter aggressive tropical humidity, high coastal salt spray, and monsoon exposure, angle bars can be supplied batch hot-dip galvanized per ASTM A123 / ISO 1461 with zinc coatings ranging from 45 µm to 85 µm (320 – 610 g/m²). Full fabrication processing includes fixed-length precision cold sawing (5.8m / 6.0m / 11.8m / 12.0m), CNC bolt-hole punching, slotted drilling, beveling, and pre-assembly marking.

63×63×6mm Equal Angle Steel (Angle Bar) Specifications

ItemStandard Parameter / Technical Specification
ProductHot-Rolled Equal Angle Steel Bar / L-Section Structural Steel / Angle Iron
Section Dimensions63 mm × 63 mm × 6.0 mm (Leg Width A: 63mm, Leg Width B: 63mm, Thickness t: 6.0mm)
Theoretical Weight5.72 kg/m (Nominal weight per meter: ~34.32 kg per standard 6.0m bar)
Dimensional ToleranceLeg Width: ±1.0 mm / Thickness: ±0.4 mm / Angle Deviation: 90° ± 45′ / Camber: ≤ 2.0 mm/m
Steel GradesASTM A36, ASTM A572 Gr.50 / JIS G3101 SS400, SS490 / EN 10025 S275JR, S355JR / GB/T 700 Q235B, GB/T 1591 Q355B
Applicable StandardsJIS G3192, ASTM A36/A6, EN 10056-1/2, GB/T 706, ISO 657-1
Surface TreatmentHot-Rolled Black (Mill Finish) / Batch Hot-Dip Galvanized (HDG) / Shop Primer Painted / Shot Blasted SA 2.5
Galvanizing StandardASTM A123 / ISO 1461 / BS 729 / EN ISO 1461 (Zinc Mass: 45 µm – 85 µm / 320 – 610 g/m²)
Standard Lengths5.8m, 6.0m (for 20GP container) / 11.8m, 12.0m (for 40GP/40HQ container) / Custom Precision Cut-to-Length
Secondary FabricationCNC Punching, Oval Slotting, Laser Cutting, Miter Cutting, Weld Beveling, Robot Sub-Assembly
ApplicationPre-Engineered Steel Structures / Industrial Warehouse Bracing / Roof Trusses / Equipment Skids / Solar Racking
Bundle Weight1.5 – 3.0 Metric Tons per bundle (Interlocked nested packaging with high-tensile steel strapping)
Inspection & CertificateEN 10204 3.1 Mill Test Certificate (MTC) / Tensile, Yield, Bending & Impact Reports / SGS, BV, TUV Inspected
Export PackagingStandard Seaworthy Bundles, Lifting Wire Slings, Rust-Preventive Treatment & Solid Timber Dunnage

Need a Direct Factory Quote for 63×63×6mm Equal Angle Steel?

Send us your required steel grade (Q235B/Q355B/SS400/A36), surface finish (Black/HDG), cut lengths (6m/12m), hole fabrication drawings, and project tonnage for an instant FOB / CIF wholesale price.

Where Is 63×63×6mm Equal Angle Steel Used?

Featuring balanced section properties, high yield strength, and superior connection versatility, 63×63×6mm equal angle steel bars are widely utilized in heavy industrial pre-engineered buildings, wind-load cross bracing, equipment sub-frames, and containerized export projects.

Industrial Steel Building Frames & Diagonal Cross-Bracing

63×63×6mm angle steel is widely fabricated into diagonal knee braces, portal frame ties, and roof truss struts for industrial warehouses and commercial workshops. The symmetrical profile resists high lateral wind shear forces and seismic vibration, while pre-punched bolt holes ensure fast, accurate on-site erection.

Installation of 63x63x6mm Equal Angle Steel Diagonal Bracing in Pre-Engineered Steel Building

Container Loading Operations & Protected Ocean Logistics

Angle bars are cut to fixed export lengths (5.8m for 20GP or 11.8m for 40GP/40HQ) to maximize payload efficiency (25–27 MT per container). Bundles are lifted via double-hook overhead cranes using protective nylon slings, positioned on solid timber dunnage, and firmly braced with cross-lashing to eliminate transit shifting and bending during sea voyages.

Overhead Crane Loading Bundled 63x63x6mm Equal Angle Steel into Shipping Container

Mill Inventory Stock & Standardized Interlocked Bundles

Continuous hot-rolling lines ensure uniform 90° internal corners, clean edges, and strict dimensional tolerances (±1.0mm). Finished angle bars are interlocked in compact rectangular bundles, bound with multi-point high-tensile steel strapping, and tagged with complete heat-number identification for rapid warehouse dispatch.

Neatly Stacked and Strapped 63x63x6mm Equal Angle Steel Bundles in Mill Storage Warehouse

63×63×6mm Equal Angle Steel FAQ

Answers to technical inquiries regarding theoretical weight calculation, dimensional tolerances, steel grades, hot-dip galvanizing protection, CNC fabrication, and containerized sea freight.

What is the theoretical weight and dimensional tolerance of 63×63×6mm equal angle steel?

The standard theoretical weight of 63×63×6mm equal angle steel is 5.72 kg/m (approximately 34.32 kg per standard 6.0-meter length and 68.64 kg per 12.0-meter bar). Dimensional tolerances comply with JIS G3192 / EN 10056-2 / ASTM A6: leg width tolerance is maintained within ±1.0 mm, thickness tolerance within ±0.4 mm, and camber/straightness does not exceed 2.0 mm per linear meter.

Which steel grades and mill certificates are available for structural projects?

We provide certified structural steel grades across all major international standards:

• Japanese Standard: JIS G3101 SS400, SS490 (standard yield strength ≥ 245 MPa / ≥ 285 MPa).
• Chinese Standard: GB/T 700 Q235B, GB/T 1591 Q355B / Q355D (high-strength low-alloy).
• American Standard: ASTM A36, ASTM A572 Grade 50.
• European Standard: EN 10025-2 S275JR, S355JR, S355J2.
All deliveries include an official EN 10204 3.1 Mill Test Certificate (MTC) verifying chemical heat analysis, yield point, tensile strength, and elongation.

What are the hot-dip galvanizing specifications for high-humidity and coastal environments?

For structures exposed to high ambient humidity, heavy monsoon rains, or coastal maritime air, angle bars are batch hot-dip galvanized strictly in accordance with ASTM A123 / ISO 1461. The zinc coating thickness ranges from 45 µm to 85 µm (320 – 610 g/m²), providing complete metallurgical cathodic protection against rust and corrosion for over 25–30 years of maintenance-free service.

Can you perform customized cutting, CNC hole punching, and miter beveling?

Yes. We offer turnkey steel processing services including precision cold saw cut-to-length (tolerances ±2 mm), single/double-row CNC bolt hole punching, slotted hole drilling, 45° miter angle cutting, weld edge preparation, and piece-marking stamping. Galvanizing or shop priming can be performed post-punching to ensure complete corrosion sealing around all cut edges and hole perimeters.

What are the standard export lengths and container loading capacities?

Standard export length specifications include:

• 20GP Containers: Cut to 5.80m / 5.85m / 6.00m lengths; payload ranges from 25 to 27 Metric Tons.
• 40GP / 40HQ Containers: Cut to 11.80m / 12.00m lengths; payload ranges from 26 to 28 Metric Tons.
Angle bars are packed into tightly nested bundles (1.5–2.5 MT each), strapped with high-tensile steel bands, and loaded with heavy timber chocking to prevent shifting during sea freight.

What quality control testing and third-party inspection options are supported?

Every production heat undergoes comprehensive quality assurance: chemical spectrographic analysis, tensile and yield strength verification, 180° cold bending testing, dimensional micrometer checks, and zinc coating thickness gauge measurement. We fully support international third-party inspections (SGS, BV, Intertek, TUV) prior to container stuffing and ocean dispatch.