CARPENTER PROJECT 70+ CUSTOM 630 (17CR-4NI) is a high-performance stainless steel alloy developed by Carpenter Technology Corporation.

630 stainless steel, also known as 17-4PH or SUS630, is a martensitic precipitation-hardening stainless steel. It combines high strength, good toughness and excellent corrosion resistance, making it an ideal choice for demanding applications; this stainless steel stands out for its exceptional high strength and excellent corrosion resistance, making it the material of choice for many surgical instruments in the medical industry.

CARPENTER PROJECT 70+ CUSTOM 630 (17CR-4NI) stainless steel, 0.75 inch (19.05 mm) diameter round rods are widely used in the manufacture of various orthopedic and minimally invasive surgical instruments, such as: orthopedic knives, orthopedic scissors, orthopedic forceps, orthopedic hooks, orthopedic needles, orthopedic scrapers, orthopedic awls, orthopedic drills, orthopedic saws, orthopedic chisels, orthopedic files/shovels, rigid tube endoscopes, laparoscopic forceps, laparoscopic instruments, needle holders and other surgical instruments.