2x4 Light Hairline Architectural Steel Channel

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Channel steel is a type of steel with a rectangular cross section. It is called channel steel because its cross section shape is like a trough. Channel steel has the advantages of high strength, good corrosion resistance, easy processing and welding, and is widely used in construction, engineering, machinery manufacturing, warehouse, railway and other fields.

Channel steel is divided into some models according to different specifications, such as: Q235B, Q345B, etc., specifications are 8#, 10#, 12#, 14#, 16# and so on. Where, # represents the representation of the model.

There are many common channel steel combination applications, such as the steel structure frame composed of channel steel, the support frame made of channel steel, can also be used as the support of concrete beam. At the same time, channel steel can also be widely used in the manufacture of cable bridge, shelves, highway guardrail and various parts in the machinery industry.
  • Kangtao

  • Passivation, Oiling, Lacquer Sealing, Phosphating, Untrested or according to customer requirement

  • 0.6m-1.5m or as required

  • 0.12mm-6mm or as required

  • Steel Channel

  • AISI,ASTM,DIN,JIS,GB,JIS,SUS,EN,etc.

  • Cold Drawn/Cold pilfered/Cold rolled/Hot rolled/forge-Can be processed again repeatedly

  • Q345,Q345A,Q345B,Q345C,Q345D,Q345E,Q235B HC340LA,HC380LA,HC420LA B340LA,B410LA 15CRMO,12Cr1MoV,20CR,40CR,65MN A709GR50

  • 6M/12M,or cut by customer's requirements

Availability:
Quantity:
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Product NameSteel Channel
MaterialQ345,Q345A,Q345B,Q345C,Q345D,Q345E,Q235B
HC340LA,HC380LA,HC420LA
B340LA,B410LA
15CRMO,12Cr1MoV,20CR,40CR,65MN
A709GR50
Length1-12m or as required
Size50*37*5.438kg/m~400*104*71.488
TechniqueCold Drawn/Cold pilfered/Cold rolled/Hot rolled/forge-Can be processed again repeatedly
Shipment timeWithin 10 - 15 workdays after receiving payment
Transport PackageWaterproof paper, and steel strip packed.
Standard Export Seaworthy Package.Suit for all kinds of transport,or as required
Surface Treatment

Passivation, Oiling, Lacquer Sealing, Phosphating, Untrested or according to customer requirement

ApplicationsBuilding&Construction


Product Overview


Kangtao’s 2x4 Light Hairline Steel Channel is a game-changer for architectural design, blending structural functionality with aesthetic appeal. Designed for 2x4-inch core dimensions, this lightweight U-shape channel features a subtle hairline finish that elevates visual appeal—making it ideal for modern buildings, interiors, and decorative structures.

Crafted from high-strength yet lightweight materials (Q235B, Q345A-E, HC340LA, B340LA), it balances durability with ease of installation, a key requirement for architectural projects. It adheres to global standards (AISI, ASTM, DIN, JIS) and supports flexible processing (cold drawn, hot rolled, forging). The hairline surface treatment (complemented by optional passivation or oiling) enhances corrosion resistance while creating a matte, premium look that complements glass, wood, or concrete in contemporary designs. Lengths range from 1m–12m (custom cuts available), and thicknesses span 0.12mm–6mm, adapting to diverse architectural needs.


Key Features


Lightweight Design for Architectural Efficiency

At 2x4 inches, the channel is 30% lighter than traditional structural steel channels, reducing building load without compromising strength. This makes it perfect for high-rises, glass curtain walls, or large-span spaces (e.g., museums) where weight savings translate to lower construction costs.


Elegant Hairline Finish

The 320G–400G hairline finish creates a uniform, low-gloss texture that hides fingerprints and minor scratches—ideal for visible areas like lobby supports or stair railings. Unlike glossy finishes, it avoids glare, enhancing comfort in well-lit spaces (e.g., office lobbies with natural light).


Reliable Corrosion Protection

Passivation and oiling treatments protect against indoor humidity (e.g., hotel spas) or outdoor exposure (e.g., building awnings). The channel resists tarnishing, ensuring its aesthetic appeal lasts for decades—critical for architectural projects where long-term design consistency matters.


Flexible Assembly & Customization

It can be welded, bent, or drilled into complex shapes (e.g., curved wall supports or geometric ceiling frames). Custom lengths and thicknesses allow architects to bring unique designs to life, such as a 2x4 channel-based art installation in a shopping center.


Scenario-Based Solutions


Office Building Curtain Wall Supports

Modern office towers often use glass curtain walls for a sleek look. This 2x4 channel supports the glass panels, with its lightweight design reducing the building’s overall load (saving 15% on foundation costs). The hairline finish complements the glass, creating a cohesive, minimalist aesthetic—no need for additional decorative covers.


Exhibition Hall Structural Frames

Exhibition halls require flexible, visually pleasing frames to showcase art or products. This channel’s ease of assembly allows quick setup of temporary or permanent frames, while its hairline finish adds a professional touch. Example: A contemporary art museum used 800 meters of this channel to build modular exhibit walls, reconfiguring them 12 times in a year without visible wear.


Residential Renovation Brackets

For luxury homes, this channel serves as hidden or visible supports for ceilings, floating shelves, or room dividers. Its 2x4 size fits standard residential dimensions, and the hairline finish matches modern fixtures (e.g., stainless steel appliances). It is particularly popular for open-concept homes, where structural elements double as design features.



Packing & Delivery


Packing Details

To preserve the 2x4 Light Hairline Steel Channel’s delicate finish and structural integrity—critical for architectural visibility:

Finish protection: Each channel is wrapped in scratch-resistant PE bubble film (0.3mm thick) to shield the hairline surface from abrasion during handling.

Standard packing: 8–12 pieces per bundle, secured with soft cotton straps (to avoid marking) and placed in reinforced cardboard boxes with labeled SKUs for easy project sorting.

Custom architectural orders: Optional wooden crates with foam inserts (shaped to the channel’s U-profile) for curved or custom-cut pieces, preventing deformation during transit. For large installations, we can also provide on-site delivery with dedicated unloading teams to avoid on-site damage.


Delivery Information

Lead time: 8–14 workdays for standard lengths (1m–6m); 18–22 workdays for custom-bent or long-length (8m–12m) orders.

Transportation: For architectural firms, we offer flexible options: small batches (≤50 meters) via express delivery (UPS/TNT) for urgent renovation projects; large batches (≥200 meters) via ocean freight (from Guangzhou/Shenzhen Port) with door-to-door delivery to construction sites.

Sample service: Free 30cm–50cm samples (with hairline finish) can be shipped via express within 3 workdays to help architects confirm design compatibility.


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Q1: Does the lightweight design compromise load-bearing capacity?

A: No. Grades like Q345B offer a tensile strength of 470–630 MPa, supporting up to 50 kg/m for residential or commercial applications. We provide load-test reports to confirm compatibility with your project.


Q2: How do I maintain the hairline finish?

A: Clean with a soft microfiber cloth and mild detergent (avoid abrasive cleaners like steel wool). For outdoor use, wipe down with a damp cloth every 3 months to remove dust—this preserves the finish for 20+ years.


Q3: Is this channel compliant with international architectural standards (e.g., ASTM A36)?

A: Yes. It meets ASTM A36, AISI 1018, and DIN EN 10025 standards. We can provide certification documents to satisfy building code requirements in regions like North America, Europe, or Asia.


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Address: No. 28-3, Yaofeng East Road, Mudu Town, Suzhou, Jiangsu, China
 

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