Stainless Steel alloy 13-8 PH (UNS S13800) is a martensitic precipitation-hardening stainless steel alloy featuring excellent strength, high hardness, superior toughness, and good corrosion resistance. Good transverse toughness properties are achieved by tight chemical composition control, low carbon content,and vacuum melting.

The chemical composition includes Chromium (Cr) 12.25-13.25%, Nickel (Ni) 7.5-8.5%, Molybdenum (Mo) 2.0-2.5%, Aluminum (Al) 0.90-1.35% as content weight with other metals covering the balance. This alloy is double melted in a Vacuum Induction Furnace followed by Consumable Electrode Vacuum Melt (VIM-VAR). In some cases, a second melting  by Electroslag Remelting (ESR) is implemented. It is weldable (inert gas shielding with Helium is preferred). Corrosion resistance is similar to 304 Stainless, with greatest resistance in the fully hardened conditions. Stainless Steel 13-8 PH comes in different shapes mostly in bars/rods, wires, forgings, rings and extrusions but also in sheets or plates.

Stainless steel 13-8 Mo is used in a range of applications including pins, valves, shafts, screws and bolts, missile components, fittings and fasteners, injection molding equipment, nuclear and petrochemical industry equipment as well as aircraft components such as engine, landing gear and structural sections.

Stainless Steel 13-8 PH grade round bars/rods are offered as part of AVIATIONEU NEW ERA product lines. Sourced by quality producers, these bars/rods are offered in Condition A (Annealed) and in different diameters in inches and pre cut lengths in inches or feet. They meet different specifications such as AMS -5629 or ASTM -A564. For additional information, please refer to the supplied documentation or contact us.