13-8Mo
The 13-8 stainless steel alloy is a precipitation-hardening stainless steel with a martensitic structure. It exhibits exceptional strength, high hardness, superior toughness, and good corrosion resistance. When compared to other ferrous materials, alloy 13-8 stainless steel stands out with its impressive mechanical properties, even in challenging environmental conditions. This alloy finds numerous applications in various industries, including aerospace for components and landing gear, nuclear reactors, the petrochemical industry, and injection molding equipment. Additionally, in its annealed condition, alloy 13-8 stainless steel can be further strengthened through low-temperature heat treatment.
Chemical Composition Limits
Weight% | C | P | Si | Ni | Al | Fe | Mn | S | Cr | Mo | N |
13-8 Mo | 0.05 max | 0.010 max | 0.10 max | 7.5-8.5 | 0.90-1.35 | Bal | 0.10 max | 0.008 max | 12.25-13.25 | 2.0-2.5 | 0.01 max |
Mechanical Properties
Material | Condition | Ultimate Tensile Strength (ksi) | 0.2 % Yield Strength (ksi) | Elongation % in 2D | % Reduction of Area | Rockwell C Hardness |
Alloy 13-8 Sheet AMS 5864 | Cond A | – | – | – | – | 38 max |
Alloy 13-8 Sheet AMS 5864 | H950 | 220 | 205 | 10 | 45 | 45 |
Alloy 13-8 Sheet AMS 5864 | H1000 | 205 | 190 | 10 | 50 | 43 |
Alloy 13-8 Sheet AMS 5864 | H1025 | 185 | 175 | 11 | 50 | 41 |
Alloy 13-8 Sheet AMS 5864 | H1050 | 175 | 165 | 12 | 50 | 40 |
Alloy 13-8 Sheet AMS 5864 | H1100 | 150 | 135 | 14 | 50 | 34 |
Alloy 13-8 Sheet AMS 5864 | H1150 | 135 | 90 | 14 | 50 | 30 |
Material | Condition | Ultimate Tensile Strength (ksi) | 0.2 % Yield Strength (ksi) | Elongation % in 2D | % Reduction of Area | Rockwell C Hardness |
Alloy 13-8 Bar AMS 5629 | Cond A | – | – | – | – | 363 HB Max |
Alloy 13-8 Bar AMS 5629 | H950 | 220 | 205 | 10 | 45 | 45 |
Alloy 13-8 Bar AMS 5629 | H1000 | 205 | 190 | 10 | 50 | 43 |
Alloy 13-8 Bar AMS 5629 | H1025 | 185 | 175 | 11 | 50 | 41 |
Alloy 13-8 Bar AMS 5629 | H1050 | 175 | 165 | 12 | 50 | 40 |
Alloy 13-8 Bar AMS 5629 | H1100 | 150 | 135 | 14 | 50 | 34 |
Alloy 13-8 Bar AMS 5629 | H1150 | 135 | 90 | 14 | 50 | 30 |