Gnee Steel (Tianjin) Co., Ltd. is one of the most professional wide parallel flange beam a36 w21x147 manufacturers and suppliers in China, also supports customized service. If you're going to buy wide parallel flange beam a36 w21x147 made in China, welcome to get free sample from our factory. Quality products and low price are available.
wide parallel flange beam A36 W21x147
Material characteristics of A36 steel h beam
Chemical composition: A36 is an American standard carbon structural steel, with carbon content ≤0.28%, manganese 0.80%-1.20%, silicon ≤0.40%, sulfur and phosphorus impurities ≤0.05%, and copper content ≥0.20% (if it is copper-containing steel).
Mechanical properties: yield strength ≥250MPa (up to 345MPa in some scenarios), tensile strength 400-550MPa, elongation ≥20%; low-temperature impact toughness (≥27J at -40℃) and moderate hardness (Brinell hardness HB 137-180), suitable for dynamic load scenarios.
Corrosion resistance: The grain structure is optimized through the normalizing process, and the corrosion resistance to salt spray and humid environment is better than that of ordinary carbon steel.
Specifications of W21x147 h section steel
Sectional dimensions: nominal height 21 inches (533mm), flange width about 8.25 inches (210mm), flange thickness ≥35mm, web thickness ≥20mm; section modulus (Sx) ≥3400cm³, moment of inertia (Ix) ≥180000cm⁴, outstanding bending and shear resistance.
Weight: Theoretical weight is about 147 pounds/foot (218.6kg/m), the unit weight is relatively high, suitable for large-span load-bearing structures.
A36 W21x147 h shaped steel application areas
Super high-rise buildings: used for core tube support columns and transfer layer main beams, bearing vertical loads and wind vibration loads.
Heavy bridges: large-span bridge main beams and pier structures, fatigue resistance meets long-term dynamic load requirements.
Industrial facilities: heavy-duty plant trusses, port crane rail beams, adapt to high impact and complex load environments.
Energy equipment: oil drilling platform frames, wind power tower connectors, corrosion resistance to extend service life.
