Key markets include:
China:
Largest consumer, using GB/T 9787 angles for rural housing. Q235 ∠63×63×5 is standard for roof trusses in national construction programs.
US:
Relies on ASTM A36 angles for commercial buildings and A572 for bridges, driven by AISC codes.
Germany/EU:
EN 10056 angles (S235/S355) dominate automotive factories and wind farms (e.g., L80×80×7).
Japan:
JIS G3192 angles (SS400) enhance seismic resilience in wooden homes as bracings.
India:
IS 808 angles (Fe410) support smart cities and rural electrification projects.