Hexagonal Steel Bar

Hexagonal steel bar is six-sided cross-section shaped steel, manufactured via precision cold drawing & hot rolling process,. Featured wrench-friendly hexagonal profile, high dimensional accuracy and great machinability. We supply carbon, alloy and stainless hex bars, support custom cutting & surface treatment, widely exported for fastener, automotive and precision mechanical component manufacturing worldwide.

Available Grades

  • SS400 / Q235B Carbon Hex Bar: Economical general grade, excellent ductility and easy machining, ideal for standard fasteners, common mechanical assembly and general fixture processing.
  • C45 / 1045 Medium Carbon Hex Bar: Heat-treatable grade with upgraded hardness, perfect for high-strength bolt, shaft and wear-resistant hexagonal mechanical parts.
  • 42CrMo Alloy Hex Bar: Molybdenum alloy reinforced grade, outstanding fatigue and impact resistance, used for heavy-load automotive transmission hexagonal components.
  • 12L14 Free Cutting Hex Bar: Lead-added free machining grade, low tool loss, optimized for high-volume CNC mass production of hexagonal fittings.
  • 304 / 316 Stainless Hex Bar: Anti-corrosion premium grade, rust-proof and acid-resistant, suitable for marine, food machinery and outdoor corrosive working scenarios.

Product Features

  • Integral Hexagonal Cross Profile: Standard flat six-side surface fits standard wrench clamping, no extra edge trimming, convenient manual and mechanical assembly.
  • Ultra-high Dimensional Precision: Cold drawn finished tolerance, flat smooth surface, small size deviation, reduce workpiece secondary grinding allowance greatly.
  • Excellent CNC Machinability: Uniform internal grain structure, stable hardness, less tool abrasion, compatible with automatic lathe and CNC batch processing.
  • Dual Forming Process Option: Hot rolled black hex bar for structural use; cold drawn bright hex bar for precision finished parts, meet differentiated usage demands.

Applications

  • Industrial Fastener Manufacturing: Raw material for hexagonal bolt, nut, stud and set screw, core material for standard industrial fastening assembly parts.
  • Automotive Mechanical Parts: Make hexagonal drive shaft, adjusting rod and chassis fastener, adapt frequent torsion and vibration working conditions of vehicles.
  • Automation & CNC Equipment: Precision hexagonal locating pin, adjustment spindle and fixture core parts for automated industrial machinery assembly.
  • Marine & Corrosive Equipment: Stainless hex bar for ship pipeline fastener, valve core parts, resist seawater corrosion and outdoor humid oxidation.
  • Hardware Tool Fabrication: Process into wrench matching bar, tool handle and anti-slip connecting parts for manual and pneumatic hardware tools.
  • Petrochemical Pipeline Fitting: High-strength hexagonal connecting rod and locking fitting for pipeline valve and industrial pressure sealing equipment.

Product Advantages (Customer Value)

  • Cut Down CNC Processing Cost: Precision finished hex shape omits profile cutting process, save machining time, reduce cutter consumption and production labor cost.
  • Improve Assembly Work Efficiency: Standard hexagonal sides match universal standard tools, speed up on-site locking and disassembly, shorten project assembly cycle.
  • Lower Product Defect Rate: Homogeneous metallurgical structure, no internal crack or impurity, guarantee stable torsion performance for finished hexagonal parts.
  • Flexible Grade Cost Matching: From low-cost carbon grade to anti-corrosion stainless grade, match light-load to heavy-load, common to corrosive working environments.
  • Save Inventory Management Cost: Unified global standard hex size, interchangeable for imported equipment spare parts, simplify factory spare part stock management.

Technical Data Table

Technical Item Carbon Steel Hex Bar Alloy & Stainless Hex Bar
Material Density 7.85 g/cm³ 7.93 g/cm³
Yield Strength ≥240 MPa ≥580 MPa
Tensile Strength 410–560 MPa 800–1100 MPa
Elongation ≥24% ≥12%
Surface Hardness HB 130–200 HB 290–350
Across-flat Size Range 6mm–50mm 10mm–80mm

Why Choose Us

  • Full-series Hex Grade Stock: Stock carbon, alloy, stainless hexagonal bars, support mixed-size container shipment, small trial order and bulk FCL order flexibly.
  • Precision Cold Drawing Workshop: Independent cold drawing production line, strict size tolerance control, guarantee uniform six-side flatness for high-precision usage.
  • Full-process Quality Inspection: Conduct dimension detection, hardness test and flaw detection, provide official batch MTC report for import customs clearance.
  • One-stop Deep Processing: Support fixed-length cutting, end chamfering, thread tapping, anti-rust oil treatment and customized surface polishing service.

Packaging & Shipping

  • Standard Seaworthy Anti-rust Package: Each hex bar wrapped with anti-rust paper and PE film, bundled by steel strip, fixed on fumigated wooden pallet, anti-scratch and moisture-proof for long sea shipping.
  • Standard Batch Marking: Mark steel grade, across-flat size, batch number and heat number clearly on every bundle for easy receiving and quality tracing.
  • Customized Packing Service: Support customer brand logo printing, customized bundle weight and independent sealed packing for high-grade stainless hex bars.

FAQ

  1. Q: What is the difference between hot rolled and cold drawn hex bar?
    A: Hot rolled hex bar is low-cost for structural use; cold drawn hex bar has tighter tolerance, brighter surface, ideal for CNC fastener precision processing.
  2. Q: Can you make thread tapping on hexagonal bar end?
    A: Yes, we support custom metric and imperial thread tapping, end chamfering and hole opening per customer drawing requirements.
  3. Q: What size tolerance can your cold drawn hex bar reach?
    A: Strict h9/h11 standard tolerance, meet international fastener manufacturing precision requirements.
  4. Q: Do you provide anti-rust treatment for long overseas shipment?
    A: Yes, default anti-rust oil treatment, customized spray anti-rust paint and sealed packing are available for coastal humid countries.