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.
PH13-8Mo Chemical Compositons
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 |
PH13-8Mo Physical Properties
Density |
Melting point |
7.76 |
1404-1471 |
PH13-8Mo Alloy Typical Mechanical Properties
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
Round bars/Flat bars/Hex bars, Size From 8.0mm-320mm, Used for bolts,fastners and other spare parts
Widths up to 1500mm and lengths up to 6000mm,Thickness from 0.1mm to 100mm.
Soft condition and hard condition with AB bright surface, width up to 1000mm
• 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.