Q355 S355 H Shaped Steel
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Products description
Q355 H-shaped steel is a new Chinese steel grade designed to replace Q345. The material density is 7.85g/cm23. There are five quality grades: Q355B, Q355C, Q355D, Q355E, and Q355GNH. The cross-section of steel H beam usually includes two parts: web plate and flange plate, also called waist plate and side plate.
EN 10025-2 S355JR H-beam is a European standard structural steel widely used in construction and engineering applications. The minimum yield strength is 355mpa and the weldability is excellent. H section steel is an economical steel with a cross-sectional shape similar to the capital Latin letter H. It is also called general steel beam, wide-edge (side) I-beam or parallel flange I-beam.
Products details
| Product Name | Q355 S355 h shaped steel |
| Shape | H |
| Length |
as your requested |
| Standards | JIS, ASTM, GB, EN,etc. |
| Packing | in bundle, packed with steel belts tightly |
| Surface | Painted; Galvanized; Weld |
| Origin | China |
| Delivery Time | 3-30 days,according to your quantity |
Q355 metal H beam chemical composition
| Steel Grade | Quality Grade | C % (≤) | Si % (≤) | Mn (≤) | P (≤) | S (≤) | Cr (≤) | Ni (≤) | Cu (≤) | N (≤) |
| Q355 | Q355B | 0.24 | 0.55 | 1.6 | 0.035 | 0.035 | 0.30 | 0.30 | 0.40 | 0.012 |
| Q355C | 0.20 | 0.030 | 0.030 | 0.012 | ||||||
| Q355D | 0.20 | 0.025 | 0.025 | – |
S355 H column steel chemical composition
| C | Si | Mn | S | P | Cr | Ni | Mo | |
|---|---|---|---|---|---|---|---|---|
| Min | ||||||||
| Max | 0.22 | 0.55 | 1.6 | 0.03 | 0.03 |
Q355 H profile steel mechanical property
| Yield Strength (≥N/mm2), Thickness or Dia. (d) in mm | ||||||||||
| Steel Grade | Quality Level | d≤16 | 16< d ≤40 | 40 < d ≤63 | 63 < d ≤ 80 | 80< d ≤ 100 | 100< d≤ 150 | 150 < d≤ 200 | 200 < d ≤ 250 | 250 < d ≤ 400 |
| Q355 | Q355B | 355 | 345 | 335 | 325 | 315 | 295 | 285 | 275 | – |
| Q355C | – | |||||||||
| Q355D | 265 | |||||||||
| Tensile Strength (N/mm2), Dia. (d) mm | |||||
| Steel Grade | Quality Level | d≤100 | 100 < d ≤ 150 | 150 < d ≤ 250 | 250 < d ≤ 400 |
| Q355 | Q355B | 470 – 630 | 450 – 600 | 450 – 600 | – |
| Q355C | – | ||||
| Q355D | 450 – 600 | ||||
S355 structural steel beams mechanical property
| Unit | Size Range mm |
Yield N/mm2 |
0.2% proof N/mm2 |
UTS (Rm) N/mm2 |
Elong (A) % |
Red of Area (Z) % |
Hardness HB |
Impact test (KV) J |
|---|---|---|---|---|---|---|---|---|
| Normalised (min) | S355J2+N 16mm dia | 345 | 470 | 22 | 27 | |||
| Normalised (max) | S355J2+N 40mm dia | 630 | ||||||
| Normalised (min) | S355J2+N 100mm dia | 295 | 450 | 18 | 27 | |||
| Normalised (max) | S355J2+N 150mm dia | 600 | ||||||
| Normalised (min) | S355J2G3 250mm dia | 265 | 400 | 23 | 25 | |||
| Normalised (max) | S355J2G3 500mm dia |
Beam steel structure image


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