What is S275JR carbon steel channel

Feb 06, 2026

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Looking for premium S275JR carbon steel channel directly from the manufacturer? GNEE is your trusted steel supplier, offering top-quality structural steel channels with fast delivery and reliable service.

 

S275JR carbon steel channel

S275JR carbon steel channel

 

Our S275JR carbon steel channels are widely used in construction, machinery, and industrial projects worldwide. With height up to 400mm, flange width up to 420mm, and lengths up to 18,000mm, we provide a versatile range of channels to meet your project requirements.

 

We stock thousands of tons of S275JR carbon steel channels in our warehouse, ready for shipment within 7 days. Below, you can find detailed specifications, chemical compositions, mechanical properties, and application information to help you choose the right channel for your project.

 

S275JR Carbon Steel Channel Specifications

 

Our S275JR carbon steel channels are designed for structural applications, with dimensions and processing options as follows:

Height: ≤400mm

Flange Width: ≤420mm

Length: ≤18,000mm

Density: 7.85 g/cm³

Steel Number: 1.0044

Delivery State: HR, AR, N

Deep Processing: Cutting, welding, bending, drilling

Third-Party Inspection: SGS, BV, Intertek

Key Advantages of GNEE Channels:

High weldability and formability

Suitable for structural and machinery applications

Reliable third-party testing support

Quick shipment from stocked inventory

 

Chemical Composition of S275JR Carbon Steel Channel

 

Thickness (mm) C (%) Mn (%) P (%) S (%) N (%) Cu (%)
≤16 0.21 1.50 0.035 0.035 0.012 0.55
16–40 0.21 1.50 0.035 0.035 0.012 0.55
>40 0.22 1.50 0.035 0.035 0.012 0.55

 

Mechanical Properties of S275JR Carbon Steel Channel

 

Grade Thickness (mm) Min Yield Strength Reh (MPa) Tensile Strength Rm (MPa) Min Elongation (%) Charpy Impact (J)
S275JR ≤16 275 430–580 23 27 at 20°C
  16–40 265 410–560 22 27 at 20°C
  40–100 255 400–540 21 27 at 20°C
  100–400 205–245 380–540 18–19 27 at 20°C

 

Dimensions and Wall Thickness of S275JR Carbon Steel Channel

 

GNEE S275JR channels are available in a wide range of dimensions:

Channel Height (mm) Flange Width (mm) Web Thickness (mm) Length (m)
100 50 5 6–12
120 60 6 6–12
150 75 6.5 6–12
200 100 7 6–12
250 125 8 6–12

Customization Available: OEM orders up to 12m in length and special web/flange thickness can be produced according to drawings.

 

Applications of S275JR Carbon Steel Channel

 

GNEE S275JR channels are widely used in:

  • Construction: Bridges, buildings, and frameworks
  • Machinery Manufacturing: Industrial equipment, plant machinery
  • Mining: Structural supports and equipment frames
  • Shipbuilding: Hulls and superstructures
  • General Fabrication: Bolted and welded assemblies

 

Equivalent Grades of S275JR Carbon Steel Channel

 

For reference only, S275JR carbon steel channel equivalents include:

Country Standard Equivalent Grade
Germany DIN RSt42-2
Japan JIS SS400
France AFNOR E28-2
China GB Q275
  GOST St4ps / E275B

 

For high-quality S275JR carbon steel channel, GNEE provides factory-direct supply, certified quality, and fast shipment. Our channels meet international standards, ensuring structural integrity for construction, machinery, and industrial applications.

 

 

 

Contact us for latest S275JR carbon steel channel price list

 

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What is S275JR grade steel?

S275JR grade steel is a readily weldable low carbon manganese steel with good impact resistance. This material is commonly supplied in the untreated or normalised condition. Machinability of this material is similar to that of mild steel.

 

What is S275JR steel equivalent to?

1 (American Welding Society) permits S275JR as an equivalent to A36 for welding purposes, and they are frequently interchanged in international projects. However, they are not identical: Standards: A36 is governed by ASTM (American), while S275JR follows EN (European), leading to differences in testing requirements.

 

What type of material is S235JR?

S235JR steel is a low-carbon structural alloy valued for its machinability, strength, and versatility. Perfect for complex components with tight tolerances, it is widely used in CNC machining for mechanical, structural, and industrial applications.

 

Are A36 and S275JR the same?

Both yield strength and tensile strength of S275JR carbon steel is higher than that of mild steel ASTM A36. So S275JR carbon steel can bear heavier load than mild steel ASTM A36. In other word, mild steel ASTM A36 is not equivalent to S275JR carbon steel.

 

What is the difference between S235JR and S275JR?

S235JR is used in less demanding applications, such as general construction, lightweight structures, and components where lower strength is sufficient (e.g., beams, columns, and frames). S275JR is preferred for applications requiring higher strength, such as heavier structural components, bridges, or machinery parts.