HEB300x300x11x19 Q355D/S355J2 steel beam h

HEB steel is a wide flange H-shaped steel under European standards, suitable for a variety of buildings and engineering structures.

Dimensions

Model: HEB300x300x11x19 h steel profile
Height (h): 300 mm
Width (b): 300 mm
Web thickness (tw): 11 mm
Flange thickness (tf): 19 mm

Q355D h beam profile material characteristics
Applicable standards: China's low-alloy high-strength structural steel standard GB/T 1591.
Chemical composition: Contains elements such as carbon (C), silicon (Si), manganese (Mn), and contains trace amounts of vanadium (V), niobium (Nb), etc. to improve strength and toughness.

Mechanical properties
Yield strength (ReL) ≥ 345 MPa
Tensile strength (Rm) between 470~630 MPa
Elongation after fracture (A) ≥ 22%
Impact absorption energy KV2 (-20°C) ≥ 27 J
Application temperature range: Especially suitable for low temperature environment, the lowest working temperature can reach -20°C.

S355J2 h profile steel material characteristics
Applicable standard: European standard EN 10025-2.
Chemical composition: Similar to Q355D, mainly composed of iron (Fe), containing carbon (C), silicon (Si), manganese (Mn) and other elements.
Yield strength (ReH) ≥ 355 MPa
Tensile strength (Rm) between 470~630 MPa
Elongation after fracture (A) ≥ 21%
Impact absorption energy KV2 (-20°C) ≥ 27 J
Application temperature range: Designed for use at lower temperatures, as low as -20°C, ensuring the material's good toughness and reliability under such conditions.

HEB300x300x11x19 h type steel beam Application field comparison
Q355D material h beam: Due to its good mechanical properties and ability to adapt to low temperatures, it is widely used in bridges, ships, offshore platforms, heavy machinery manufacturing and other fields, especially in China and its surrounding countries and regions.

S355J2 steel beam h material: Due to its excellent comprehensive performance, it is widely used in various building structures, bridge engineering and machinery manufacturing that require higher strength and low temperature resistance.