HEB240X240X10X17 S275JR S355JR material h beam
Model parameters
| Parameters | HEB 240×240×10×17 steel h profile |
|---|---|
| Section height | 240 mm |
| Flange Width | 240 mm |
| Weir thickness | 10 mm |
| Flange thickness | 17 mm |
| Rice weight | About 106 kg/m |
| Standard length | 12 meters fixed length |
Chemical composition comparison
| element | S275JR h beam section | S355JR H-section steel beam |
|---|---|---|
| C | ≤0.22% | ≤0.24% |
| Mn | ≤1.50% | ≤1.60% |
| Si | ≤0.55% | ≤0.55% |
| S | ≤0.035% | ≤0.025% |
| P | ≤0.035% | ≤0.025% |
| Alloying elements | Aluminum deoxidation process optimizes grain structure | Contains trace amounts of niobium (Nb)/vanadium (V) |
Mechanical properties comparison
| Performance Items | S275JR h steel profile | S355JR structural steel beam |
|---|---|---|
| Yield Strength | ≥275 MPa (thickness ≤16mm) | ≥355 MPa (thickness ≤16mm) |
| tensile strength | 430~580 MPa | 450~680 MPa |
| Low temperature toughness | -20℃ impact energy ≥27 J | -20℃ impact energy ≥27 J |
| Elongation | ≥20% | ≥21% |
Application field comparison
| Material | Typical application scenarios |
|---|---|
| S275JR steel beam | - Light industrial plant frame - Non-load-bearing building decoration structure - Ordinary mechanical support (scenarios with high welding process requirements) |
| S355JR h section steel | - Heavy bridge support beams (dynamic load bearing capacity increased by 25%) - Port crane rail beams - Infrastructure in cold regions (excellent low temperature stability) |
Which of these two materials is more commonly used?
S275JR material h beam: Mainly used in scenarios with moderate strength requirements and cost control, such as light factory frames, general mechanical equipment brackets, etc.; widely used in medium and low load building structures due to its excellent welding performance and 5%~10% lower cost than S355JR.
S355JR steel beam h: Dominates in heavy engineering, such as bridge main beams, port machinery, high-rise building frames and other fields that require high-strength support; market usage is significantly higher than S275JR, especially in projects with frequent dynamic loads or requiring long-term durability (such as energy infrastructure).
