PH13-8Mo stainless is a martensitic precipitation hardening stainless steel that has 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. Typical applications are large airframe structural components and injection molding equipment.
C |
Cr |
Ni |
Mo |
Si |
Mn |
P |
S |
Al |
N |
Fe |
≤ 0.05 |
12.25 13.25 |
7.5 8.5 |
2.0 2.5 |
≤ 0.1 |
≤ 0.2 |
≤ 0.01 |
≤ 0.008 |
0.9 1.35 |
≤ 0.01 |
Bal |
Density |
Melting point |
7.76 |
1404-1471 |
Strength varies with heat treatment condition. The following table shows minimum mechanical properties for the various aged conditions, per AMS 5864
H950 | H1000 | H1025 | H1050 | H1100 | H1150 | |
0.2 Offset Yield Strength, ksi | 205 | 190 | 175 | 165 | 135 | 90 |
Ultimate Tensile Strength, ksi | 220 | 205 | 185 | 175 | 150 | 135 |
Elongation in 2", % | 10 | 10 | 11 | 12 | 14 | 14 |
Reduction of Area, % (Longitudinal) | 45 | 50 | 50 | 50 | 50 | 50 |
Reduction of Area, % (Transverse) | 45 | 50 | 50 | 50 | 50 | 50 |
Reduction of Area, % (Short-Transverse) | 35 | 40 | 45 | 45 | 50 | 50 |
Min Hardness, Rockwell | 45 | 43 | - | 40 | 34 | 30 |
AMS 5629,ASTM A 564,EN 1.4548,UNS S13800,Werkstoff 1.4548
• High strength, good fracture toughness, transverse mechanical properties and stress corrosion resistance in Marine environment.
• Weldability:By an inert gas protection welding, also using most of the other welding process, including plasma welding, electron beam welding, And argon shielding gas is preferred.
Widely used in aerospace, nuclear reactors and petrochemical and other fields, such as cold heading fasteners and
machining, aircraft components, reactor components and petrochemical equipment.