1-1/2" x 1-1/2" Hot Rolled Steel Square Tube with a 0.18" wall thickness, supplied in 20-foot (240") lengths. This tubing conforms to ASTM A500 Grade B, offering a minimum yield strength of 46,000 PSI and excellent weldability. Its medium size is ideal for constructing durable structural frames, equipment bases, and support columns where strength and cost-effectiveness are key. In stock Los Angeles.