с низким содержанием

Low-iron bauxite.

Medium-carbon steel nuts low (or poor, or deficient) in manganese (or with a low content of manganese) are hard to tap.

The lunar rocks are waterless and hydrogen poor [or poor (or low) in hydrogen].

The silicothermic reaction is generally employed to produce ferrochromium of low-carbon content (or low-carbon ferrochromium).

Источник: Русско-английский научно-технический словарь на Gufo.me