What is the size range of JIS G3106 welded structural steel

JIS G3106 welded structural steel has good welding performance. It is suitable for bridges, ships, oil storage tanks, containers and other structures.

The size range of JIS G3106 welded structural steel:
SM400A, SM400B: suitable for steel plate, steel strip, section steel and flat steel, thickness ≤200 mm;
SM400C: suitable for steel plate, steel strip and section steel, thickness ≤100 mm; flat steel thickness ≤50 mm;
SM490A, SM490B: suitable for steel plate, steel strip, section steel, flat steel, thickness ≤200 mm; SM490C structural steel: suitable for steel plate, steel strip and section steel, thickness ≤100 mm; flat steel thickness ≤50 mm;

SM490YA, SM490YB: suitable for steel plate, steel strip, section steel, flat steel, thickness ≤100 mm;
SM520B structural steel: suitable for steel plate, steel strip, section steel, flat steel. Thickness ≤100 mm;
SM520C steel: suitable for steel plate, steel strip, section steel, thickness ≤100 mm; flat steel thickness ≤40 mm;
SM570 steel: suitable for steel plates, steel strips, section steels, thickness ≤100 mm, flat steel thickness ≤40 mm.