316L Stainless Steel Hex Bar

Flat-to-Flat 4–50mm, Electro-Polished

The 316L stainless steel hex bar offers ultra-low carbon, corrosion-resistant performance, ASTM F138 and ISO 5832-1 compliance, and a polished surface ideal for medical and marine use.

  • Biocompatibility

    Certified through cytotoxicity and sensitization tests, this hex bar can be used in implants such as orthopedic bone plates.

  • Superior Corrosion Resistance

    With 2–3% Mo content, it offers double the chloride ion resistance of 304 stainless steel, ideal for marine and medical environments.

  • High Dimensional Precision

    Cold-drawn process ensures across-flat tolerance of ±0.02 mm, enabling reliable assembly for precision medical instruments.

Product Specifications

Chemical Composition (GB/T 1220-2007)
Element Content (%)
C ≤0.03
Cr 16.0–18.0
Ni 10.0–14.0
Mo 2.0–3.0
Physical & Mechanical Properties
  • Density: 7.98 g/cm³

  • Melting Point: 1320–1370℃

  • Yield Strength: ≥175 MPa

  • Brinell Hardness: ≤200 HB

  • Chloride Stress Corrosion Resistance: No cracking in 3.5% NaCl solution

Specifications
  • Flat-to-Flat Size: 4–50mm (tolerance ±0.02mm)

  • Length: 3–6m (custom cut ±3mm)

  • Surface Treatment: Electro-polished + passivated

Pricing Calculation

Workshop & Manufacturing Machine

Stainless Steel Bar Inventory Racking System

Spectrometer for Alloy Composition Analysis

Finished Stainless Steel Bars on Storage Racks

Palletized Stainless Steel Bars on Workshop Floor

Secured Stainless Steel Bar Bundles for Shipment

Forklift Loading Bundled Stainless Steel Bars into Freight Truck

Product Applications

  • Orthopedic Implants

    Specification: 10×10 mm

    Case:Titanium alloy bone plate connector

  • Dental Instruments

    Specification: 6×6 mm

    Case: Orthodontic bracket base

  • Medical Equipment

    Specification: 20×20 mm

    Case: Non-magnetic bracket for MRI equipment

Value-Added Services

  • Cut-to-Size Service: Custom lengths available on request

  • Precision Machining: Cold-drawing and CNC machining for exact tolerance control

  • Surface Finishing: Electro-polishing, passivation, grinding upon request

  • Certification: Full mill test reports (MTR), ASTM/ISO compliance documents

FAQs

What is a stainless steel hex bar used for?
Stainless steel hex bars are widely used for fasteners, connectors, orthopedic implants, and precision machining components due to their excellent machinability and dimensional accuracy.
Why choose 316L stainless steel hex bar over 304?
316L contains 2–3% molybdenum, which provides superior chloride ion corrosion resistance, especially in medical and marine environments.
Can the hex bar be supplied in custom cut lengths?
Yes, we offer cut-to-size stainless steel hex bars with tight tolerances to meet your project requirements.
Does 316L stainless steel hex bar meet medical standards?
Yes, it conforms to ASTM F138 and ISO 5832-1, ensuring it is safe for medical implants and cleanroom equipment.
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