W21x201 h beam wide flange A36/A572GR50/A992 material difference
W21x201 beam steel general specifications
Nominal height: 21 inches (533mm)
Flange width: about 8.25 inches (210mm)
Web thickness: ≥25mm, flange thickness: ≥40mm
Theoretical weight: about 201 pounds/foot (299.3kg/m)
Section modulus (Sx): ≥4800cm³ (A992 material can reach 5200cm³)
Steel H Column Performance and Application Scenarios
A36 h beam material: Highly economical, suitable for conventional static loads, general corrosion resistance (surface coating required); used in industrial plant main beams and general equipment brackets.
A572GR50 structural steel h beam material: High strength and light weight (15% lighter than A36), 30% higher resistance to salt spray corrosion; used in cross-sea bridge main beams and port crane track beams.
A992 structural h beam material: Outstanding fatigue resistance (cyclic load life is 20% higher than A572GR50), excellent seismic performance; used in super high-rise building core tubes and space launch platform support frames.
