Welcome to the Online Golf Glossary; your all-encompassing quick reference for all those golfing terms you hear out on the course or read whilst going through our site but aren’t quite sure exactly what they mean.
17-4 Stainless Steel
Stainless steel alloy used in Iron and metal wood head construction. 17-4 is no more than 0.07% Carbon, between 15 and 17% Chromium, 4% Nickel, 2.75% Copper, and 75% Iron and trace elements. Harder than 431 stainless steel.
431 Stainless Steel
Stainless steel used in Iron and putter head construction, not more than 20% carbon, 15-17% chromium, and 1.25-2.5% nickel, with the remainder being Iron and a few trace elements. The most common Iron making material in high quality Irons. Softer than 17-4 stainless steel.
6-4 Titanium
Titanium is used in wood heads manufactured with the formula 6Al-4V: these are 90% Titanium, 6% Aluminium and 4% Vanadium. Titanium is often used in oversize and larger heads.