N-A-X Finegrain is a low-alloy, high strength, structural steel possessing high strength with a high degree of malleability and toughness. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: CS-18. Producer or source: Great Lakes Steel Corporation.