S355JR Channel Structural Steel is a high-strength, non-alloy European standard steel section manufactured under EN 10025-2. It is widely used in construction, steel fabrication, machinery frames, platforms, warehouses, bridges, and structural support systems.
S355JR Channel Structural Steel
The grade designation means:
- S = Structural Steel
- 355 = Minimum yield strength of 355 MPa
- JR = Minimum 27 Joules impact energy tested at +20°C
This makes S355JR steel channel an excellent balance of strength, weldability, machinability, and cost efficiency for general engineering projects.
Why Choose S355JR Channel Structural Steel?
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High Strength Performance
Compared with standard mild steel, S355JR channel steel offers higher yield strength, allowing lighter structures while maintaining load-bearing capacity.
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Excellent Weldability
Low carbon content ensures smooth welding performance, making S355JR U channel steel ideal for fabrication, cutting, drilling, and assembly.
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Cost-Effective Structural Material
For projects that do not require sub-zero impact resistance, S355JR structural channel steel is more economical than low-temperature grades such as S355J2.
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Wide Application Range
Suitable for:
- Steel buildings
- Warehouse frames
- Mezzanine floors
- Agricultural machinery
- Truck chassis
- Equipment supports
- General construction beams
S355JR Channel Steel Chemical Composition (Max %)
| Grade | C | Mn | P | S | Si | Cu | N |
|---|---|---|---|---|---|---|---|
| S355JR | 0.24 | 1.60 | 0.035 | 0.035 | 0.55 | 0.55 | 0.012 |
Mechanical Properties of S355JR Channel Structural Steel
| Grade | Yield Strength | Tensile Strength | Impact Test | Impact Energy |
|---|---|---|---|---|
| S355JR | ≥355 MPa | 470–630 MPa | +20°C | 27 J |
Available Types of S355JR Steel Channels
We supply a full range of S355JR channel section steel, including:
- UPN Channel Steel
- UPE Channel Steel
- Parallel flange channels
- Mild taper channels
- Custom-fabricated channel profiles
Available in custom lengths, cut-to-size options, and export packaging.
Why Buy S355JR Channel Structural Steel From Us?
Large Ready Stock
Fast delivery of standard and custom sizes of S355JR channel steel beams for urgent projects.
Full Quality Certification
- Every shipment can be supplied with:
- EN 10204 3.1 / 3.2 MTC
- SGS / BV / TUV inspection
- Dimensional reports
- Chemical & mechanical test reports
Processing Services
One-stop steel processing for S355JR steel channel suppliers:
- CNC cutting
- Drilling
- Welding
- Bending
- Shot blasting
- Primer painting
S355JR vs S355J2 Channel Steel
If your project is in normal temperature environments, S355JR channel structural steel is the ideal economical solution. For cold climate or offshore structures requiring -20°C impact toughness, S355J2 may be required.
For most commercial buildings, factory structures, and fabrication works, S355JR steel channel remains the most popular choice.
We are professional suppliers of S355JR Channel Structural Steel, offering competitive prices, fast shipment, and custom processing services worldwide.
Contact us now for the latest quote, stock list, and technical support for your next project.
Contact now to get S355JR channel structural steel Quote
What is the US equivalent of S355JR?
Both grades are often interchanged in international projects, but equivalence is not absolute. According to industry sources, A36 is frequently cited as the closest American equivalent to S235JR (a lower grade), while S355JR is more comparable to ASTM A572 Grade 50 due to higher strength.
What does S355JR mean?
Steel grade S355JR is used to manufacture hot-rolled flat and long products, which are subsequently used when producing steel building structures. Classification: Non-alloy structural steel. Products: Flat and long products, semi-finished products.
What is the difference between S355JR and A36?
EN 10025-2 S355JR and ASTM A36 are both fundamental structural steels, but they are not direct equivalents. S355JR offers significantly higher yield strength (355 MPa vs. 250 MPa) and guaranteed impact toughness, aligning it more closely with ASTM A572 Grade 50.
What is the ASTM equivalent of s335jr?
The most widely accepted and functionally equivalent ASTM equivalent to S355JR is ASTM A572 Grade 50. Both are high-strength, low-alloy (HSLA) structural steels used extensively in construction, bridges, and general fabrication.
What is the difference between S355JR and S355MC?
Strength level: S355JR steel usually has a minimum yield strength of 355MPa, and its tensile strength is 470-630MPa when the thickness is less than 16 mm. In comparison, S355MC steel has a higher yield strength, usually 355-510MPa, and a tensile strength of 430-550MPa.