"iron of" is not a correct phrase in written English.
It is not used in any context.
The roughly hewn iron of this restraint emphasizes the harsh realities of the slave trade.
Catalan forge, medieval Spanish forge that yielded malleable iron of excellent quality.
He says he pays 12 cents a pound for iron of the kind in gates.
She is grateful for "the cool stone of her mother's face and hands," "the iron of her arm".
The scientists also collected old iron of the era — including some from the Brooklyn Bridge — to make comparisons.
Nutritionally, it boasts twice the protein, four times the fiber and three times the iron of regular pasta.
They had little coal or iron of their own, and the railroads had largely passed them by.
Innokentii lowered his brow onto the dull-red painted iron of the safe and rested there with closed eyes.
The rapid reduction of the heme iron of the fused enzyme by NADPH was observed.
The screws on band iron of openings are very easy to loosen.
