Profile: Southwest Steel Casting Company manufactures castings from 10 to 4,500 lbs. We offer full heat treating services, which allow for diffusion of carbon alloying elements, softening, hardenings, stress-relieving, toughening and removal of hydrogen entrapped at the surface of the casting. We also render finishing, machining, assembly and painting services. We use materials like carbon steel, low & high alloy steel and stainless steel. We serve construction, transportation, marine and mining industries. We are accredited with ISO 9001:2000 certification.