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316L Stainless Steel Channel

Manufactured according to GB/T 706-2016, corresponding to 022Cr17Ni14Mo2 austenitic stainless steel

Its ultra-low carbon content (C ≤ 0.03%) prevents intergranular corrosion. The addition of molybdenum (2.0–3.0%) enhances its resistance to chloride corrosion. It is ideal for marine engineering, chemical equipment, and structural components in humid environments.

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  • Excellent Resistance to Seawater and Chemical Corrosion

    Pitting potential ≥ +300 mV in 3.5% NaCl solution; 50% higher resistance to crevice corrosion compared to 304L.

  • Ultra-Low Carbon for Intergranular Corrosion Resistance

    With C ≤ 0.03%, the heat-affected zone of welds is free from intergranular corrosion risk, suitable for fully welded structures.

  • Outstanding Low-Temperature Toughness

    Impact energy ≥27 J at −40 °C, suitable for polar engineering and low-temperature equipment supports.

Product Specifications

Chemical Composition (GB/T 1220-2007)
     
Element C≤ Si≤ Mn≤ P≤ S≤ Cr Ni Mo
Content (%) 0.03 1 2 0.035 0.03 16.0-18.0 12.0-15.0 2.0-3.0
Physical and Chemical Properties
  Physical Properties
Density Melting Point Thermal Conductivity
7.98 g/cm³ 1375–1450 °C 15.2 W/(m·K) at 20 °C
Mechanical Properties (Annealed)
Tensile Strength Yield Strength Elongation Hardness
≥480 MPa ≥170 MPa ≥40% ≤187 HB
Chemical Properties
  • Corrosion rate ≤0.01 mm/year in 65% nitric acid at 25 °C
  • Superior seawater erosion resistance compared to 304L
Specifications and Supply Dimensions
       
Cross Section Dimensions (per GB/T 706-2016):
Model (h×b×d) Height h (mm) Leg Width b (mm) Web Thickness d (mm) Theoretical Weight (kg/m)
10# 100 48 5.3  10.007
20# 200 73 7  22.637
32a# 320 88 8 38.083
  • Length: Standard 6 m per piece, custom lengths up to 12 m (±5 mm tolerance)
  • Minimum Order Quantity: 100 kg
  • Surface Finishes: Hot Rolled Black, Pickled & Passivated (improved corrosion resistance), Cold Drawn Bright (Ra ≤1.6 μm)

Pricing Calculation

Workshop & Manufacturing Machine

Stainless Steel Profiles on Storage Racks

Spectrometer for Alloy Composition Analysis

Profile Weighing with Crane Scale

Factory Stacking of Stainless Steel Profiles

Packaged Stainless Steel Profiles for Shipment

Worker Loading Profiles onto Truck

Product Applications

  • Marine Engineering

    Support structures for a port dock (20a# channel bar, resistant to seawater spray corrosion, service life exceeding 10 years)

  • Chemical Equipment

    Support frame for citric acid storage tank (32a# channel bar, pickled & passivated to resist organic acid corrosion)

  • Food Machinery

    Support for fermentation tanks in a brewery (10# channel bar with BA finish, compliant with food contact standards)

FAQ

What are the key properties of 316L stainless steel channels?

Excellent corrosion resistance, especially in marine and chemical environments, with good structural strength.

Where are 316L stainless steel channels commonly used?

Structural frames, industrial platforms, marine facilities, and chemical processing plants.

How does 316L channel differ from 304 channel?

316L offers improved resistance to chlorides and harsh environments.

Is 316L stainless steel channel suitable for welding?

Yes. Low carbon content ensures good weldability without post-weld heat treatment.

Can channels be supplied to custom specifications?

Yes. Size, length, and inspection options can be customized.

Need more details on stainless steel products? Feel free to contact Walmay anytime.

Walmay will help match the right stainless product form and specification for your application, confirm quantities and packing needs, and provide requested documents based on order requirements.

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