"square steel" is a correct and usable phrase in written English.
It is an expression used to refer to an object or material that is square shaped and made of steel. For example, "The artist shaped the sculpture out of a solid piece of square steel."
In 1968 she began using one-foot square steel plates as the basic module for her paintings.
He did research online and concluded that a square steel frame with a hydraulic system — essentially, a box on wheels — would work.
The crate contained a frame, made of square steel tubing, fiberglass and aluminum panels, the seats and the wheels (but not the tires, because of federal regulations).
Investigators believe the accident occurred as workers were trying to install a massive square steel collar around the crane's tower, at the 18th floor of the construction site.
In 1915 he saw a pile of snow shovels with big square steel scoops lined up in a shop for the New York winter.
For nearly nine hours, the group had struggled to assemble a two-and-a-half-ton tractor, Erector-set style, from piles of square steel tubes punched on all sides with holes, using dozens of ten-inch bolts.
It is protected from the elements by an aluminum roof, which also shields three square steel-and-glass cocktail tables designed by Mr. Yip that when placed together form a dining table.
Influenced by Minimalism and Conceptual Art, she decided at 27, by then living in New York, to work exclusively on one-foot-square steel panels.
Inspired by subway signs, she fabricated 12-inch-square steel plates coated with baked white enamel and silkscreened with a pale grid on which she could paint with Testor enamels.
Jennifer Bartlett, to cite another of the show's omissions, was still painting on 12-inch-square steel plates; her 987-plate extravaganza, "Rhapsody," would be shown in May 1976.
The materials tested include: a cellular ceramic substrate with regular square channels; steel "scourers"; and stainless steel "wool".
