13-8 PH STAINLESS STEEL AMS 5629 UNS S13800
13-8 PH is a martensitic precipitation-hardening stainless steel. This alloy is double melted in a Vacuum Induction Furnace (VIM) followed by Consumable Electrode Vacuum Melt (CEVM or VAR); or in some cases, 2nd melt is by Electroslag Remelting (ESR) as specified by consumer. It exhibits 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.
13-8 PH steel provides a wide range of properties through a single precipitation hardening heat treatment. It is weldable; inert gas shielding with Helium is preferred. Corrosion resistance is similar to 304 Stainless, with greatest resistance in the fully hardened conditions.
<<13-8 PH STAINLESS STEEL AMS 5629 UNS S13800 DATA SHEET>>
Chemical Composition:
| Symbol | Element | Min % | Max % |
| C | Carbon | 0.05% | |
| Mn | Manganese | 0.10% | |
| Si | Silicon | 0.10% | |
| P | Phosphorus | 0.010% | |
| S | Sulfur | 0.008% | |
| Cr | Chromium | 12.25% | 13.25% |
| Ni | Nickel | 7.50% | 8.50% |
| Mo | Molybdenum | 2.00% | 2.50% |
| N | Nitrogen | 0.010% | |
| Al | Aluminum | 0.90% | 1.35% |
| Fe | Iron | Balance |
Common Trade Names:
PH13-8Mo
XM-13
UNS S13800
DMS 2100 Grade
HMS 6-1105 REV A AMD 3
ST0160LB0013 REV E
ASTM F899-12B
RMS-150 REV N for sizes 3.625” Max
SAE 13-8
ATI 13-8 Supertough® Alloy
Common Specifications:
AMS 5629 Bars, Forgings, Wire, Extrusions
– Rounds 12″ max diameter
– Hexagons 12″ max across flat sides
– 12″ max least distance parallel sides
– Stock of any size for forgings, flash welded rings, or extrusion
AMS 5629/H1000 (produced & precipitation hardened to H1000 condition)
AMS 5864 (Plate)
ASTM A564 (Type XM-13 Bars, Wires, Shapes)
ASTM A693 (Sheet, Plate, Strip)
ASTM A705 (Forgings)
AMS 5934 ATI 13-8 Supertough® Alloy Bars, Forgings, Rings, Extrusions
Heat Treatment:
| Condition | Temperature |
| H950 | 950°F ± 10°F (510°C ± 6°C) |
| H1000 | 1000°F ± 10°F (538°C ± 6°C) |
| H1025 | 1025°F ± 10°F (552°C ± 6°C) |
| H1050 | 1050°F ± 10°F (566°C ± 6°C) |
| H1100 | 1100°F ± 10°F (593°C ± 6°C) |
| H1150 | 1150°F ± 10°F (621°C ± 6°C) |
Physical Properties:
Density: 0.2836 #/in3
Melting Range 2560° – 2680°F
Mechanical Properties:
| Condition | Tensile | Yield 0.2% offset | Elongation (%in 2″) | Reduction of Area | Brinell Hardness | Rockwell Hardness |
| Ann | 175 ksi max | 363 max | ||||
| H950 | 220 ksi | 205 ksi | 10% | 45% | C45 min | |
| H1000 | 205 ksi | 190 ksi | 10% | 50% | C45 min | |
| H1025 | 185 ksi | 175 ksi | 11% | 50% | ||
| H1050 | 175 ksi | 165 ksi | 12% | 50% | C40 min | |
| H1100 | 150 ksi | 135 ksi | 14% | 50% | C34 min | |
| H1150 | 135 ksi | 90 ksi | 14% | 50% | C30 min |
Applications:
Used primarily for parts requiring corrosion resistance, stress-corrosion, and high strength 600°F (316°C), with good ductility and strength in transverse direction for
Aerospace components
Injection molding equipment
Waterjet cutting equipment
Petrochemical industries
Nuclear industries
