Dimensions of HEA 220
HEA 220 belongs to the narrow-flange HEA range of European H sections. The dimensional standard EN 10365 gives a height of 210 mm, a flange width of 220 mm, a web thickness of 7 mm, a flange thickness of 11 mm and a root radius of 18 mm, with a nominal mass of 50.5 kg per metre. The shorthand 220 x 210 x 7 x 11 used in enquiry documents refers to the nominal range size and the resulting section height, so dimensional checks should always be made against EN 10365.
| Parameter | HEA 220 |
|---|---|
| Height h | 210 mm |
| Flange width b | 220 mm |
| Web thickness tw | 7 mm |
| Flange thickness tf | 11 mm |
| Root radius r | 18 mm |
| Mass | 50.5 kg/m |
| Dimensional standard | EN 10365 |
S275JR Material Data
S275JR is an EN 10025-2 structural steel with a minimum yield strength of 275 MPa for thickness up to 16 mm and a tensile range of 410-560 MPa. The chemical requirements are limited to a maximum of 0.21% carbon, 0.55% silicon, 1.50% manganese, 0.045% phosphorus and 0.045% sulphur. The JR suffix means a Charpy V-notch impact test at 20 degrees C with a minimum energy of 27 J.
S355JR Material Data
S355JR, also in EN 10025-2, raises the minimum yield strength to 355 MPa for thickness up to 16 mm with a tensile range of 470-630 MPa. Its chemistry allows up to 0.24% carbon, 0.55% silicon, 1.60% manganese, 0.045% phosphorus and 0.035% sulphur. The JR suffix again indicates a Charpy impact test at 20 degrees C with a minimum energy of 27 J, which means the two grades differ mainly in strength rather than in toughness when both carry the JR designation.
| Property | S275JR | S355JR |
|---|---|---|
| Carbon, max. | 0.21% | 0.24% |
| Manganese, max. | 1.50% | 1.60% |
| Phosphorus, max. | 0.045% | 0.045% |
| Sulphur, max. | 0.045% | 0.035% |
| Yield strength, up to 16 mm | min. 275 MPa | min. 355 MPa |
| Tensile strength | 410-560 MPa | 470-630 MPa |
Selection and Fabrication Notes
Where deflection controls the design, the higher modulus-independent geometry of the section matters more than the grade, so S275JR is often sufficient for floor beams and secondary framing. S355JR becomes economic when the section depth is constrained or when the member carries concentrated loads, because the higher yield strength reduces required flange area.
Both grades are readily welded and cold formed, and both are commonly hot-dip galvanized. Bolted connections to end plates and shear tabs need hole positions measured from the actual delivered section, since rolled tolerances on flange width and web offset accumulate over long runs.
Frequently Asked Questions
Q: What are the actual dimensions of HEA 220?
A: Height 210 mm, flange width 220 mm, web 7 mm, flange 11 mm and root radius 18 mm, as given in EN 10365.
Q: How much does HEA 220 weigh?
A: The nominal mass is 50.5 kg per metre, subject to the mass tolerance in the dimensional standard.
Q: What is the maximum manganese content of S275JR?
A: 1.50% under EN 10025-2. The 1.60% limit applies to S355JR.
Q: Do S275JR and S355JR have the same impact requirement?
A: Yes. Both carry the JR suffix, meaning 27 J Charpy V-notch energy at a test temperature of 20 degrees C.
Q: Which grade should be used for a dynamically loaded beam?
A: Where low-temperature toughness is also required, a J0 or J2 grade is preferred; JR grades are intended for ambient-temperature service.