13-8 Stainless Steel | 13-8 PH Mo

Shapes Available

  • Flat Bar
  • Hex Bar
  • Round Bar
  • Square Bar


  • Aerospace
  • Manufacturing
  • Nuclear

Industry Names

  • 13-8 Stainless
  • 13-8 PH
  • 13-8 MO
  • 13-8


  • Stainless Steel


  • AMS 5629
  • ASTM A564
  • UNS S13800


  • Aircraft Applications
  • Fasteners
  • Food Processing Equipment
  • Gears
  • Shafts


  • Martensitic
  • Precipitation Hardening Stainless Steel

13-8 Stainless Steel is a martensitic, high strength stainless steel with good corrosion resistance, toughness that is capable of achieving high hardness levels.

13-8PH MO shows good ductility and resistance to stress-corrosion cracking.

13-8 Has excellent properties which are obtained through close control of microstructure and chemical composition. In addition, 13-8 has excellent properties due in part to specialized melting which reduces the amount of impurities. 13-8 can be age hardened in a single low temp heat treatment. In addition, 13-8PH also good fabrication characteristics. The controlled chemical composition and microstructure in addition to the special melting practices during manufacturing allows 13-8 to uphold very good mechanical properties when applied in harsh environments.

It can be age-hardened through low temperature treatment and cold worked prior to increase the aging, especially when aging occurs at lower temperatures. 13-8PH is capable of high strength and hardness alongside strong levels of resistance to corrosion and stress corrosion cracking.

13 -8 can be furnished in many different heat treated conditions: H900, H950, H1000, H1050, and H1100.

13-8 is available in flat bar, round bar, square bar, hex bar and plate. Looking for where to buy 13 8 or need to know about how to heat treat 13-8? Michlin can help supply whatever condition needed. Michlin can supply material that meets AMS 5629 and is available for immediate delivery. For more information on 13-8 and other PH grades, click here.

Michlin recently created a video on 13-8, check out transcript here. Feel free to watch the video below:

Please contact us to request a quote. We specialize in hard to find material.

We work closely with many manufacturers in the aerospace & defense industry. We work with NADCAP approved heat treaters and testing laboratories. We can supply DFARS compliant material.

Metal Properties
Electrical Resistivity 613 Ohms (circ mil./ft.)
Melting Range 2560-2680 °F
Density 0.279 lb/inch³
Chemical Composition
Al.90 1.35
C- .05
Cr12.25 20.00
Mn- .2
Mo2.0 2.5
N- .1
Ni7.5 8.5
P- .01
S- .008
Si- .1
Go to Top