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Stainless Steel 13-8 Mo (AMS 5864/ AMS 5629/ UNS S13800)
Technical Data Sheet
13-8 stainless steel alloy is a martensitic precipitation-hardening stainless steel that has excellent strength, high hardness, superior toughness, and good corrosion resistance.
Compared to other ferrous-base materials alloy 13-8 Stainless Steel offers a high level of useful mechanical properties under severe environmental conditions.
Alloy 13-8 Stainless Steel uses: Aerospace components, landing gear, nuclear reactor components, petrochemical industry, injection molding equipment etc. Alloy 13-8 Stainless Steel in the annealed condition can be strengthened further by relatively 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 |
Typical 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 |
Availability
Alloy 13-8 Stainless Steel is available in Sheet, Plate, Strip, Bars (Round, Square, Flat, Hex), Wire, Forgings, Rings, Extrusions and Welding Wire. For all stock availability contact Sales.
Specifications
| Bar | AMS 5629 Type 1, ASTM A 564 Grade XM13, ASME SA564 Grade XM13, DMS 2100, HMS 6 1105, HMS 6 1105 Exc Sonic, Sonic Per MIL STD 2154 Class A, STO 160 LBO 013 |
| Plate | AMS 5864, ASTM A 564, ASME SA693 |
| Wire | ASTM A 564, ASME SA564, AMS 5864 |
| Sheet | ASTM A693, ASME SA693, AMS 5864 |
| Strip | ASTM A693, ASME SA693 |
| Forgings | ASTM A 705, ASME SA705 |
| Rings | 13-8 AMS 5629 |
| Extrusions | 13-8 AMS 5629 |
