13-8Mo Stainless Steel Powder
Stainless Steel Powders · Metal Additive Manufacturing Powder
13-8Mo (PH 13-8 Mo, UNS S13800) is a precipitation-hardening martensitic stainless steel delivering high strength, toughness and corrosion resistance, widely specified for aerospace structural AM. Its low carbon and balanced Cr-Ni-Mo-Al chemistry allow H950-H1150 ageing to tune strength from 1,200 to 1,500 MPa with excellent notch toughness. LPBF as-built 13-8Mo prints with good crack resistance; solution annealing plus ageing develops the full mechanical envelope. Gas-atomized powder in 15-45 µm and 15-53 µm cuts is standard. Aerospace buyers should request chemistry per AMS 5864 and hydrogen content control for high-strength applications.
Typical Applications
13-8Mo Stainless Steel Powder - Key Properties
| Chemical composition (wt%) | Fe bal · Cr 12.25-13.25 · Ni 7.5-8.5 · Mo 2-2.5 · Al 0.9-1.35 · C ≤0.05 |
| Density | 7.80 g/cm³ (bulk) |
| Tensile strength (aged) | 1,200-1,500 MPa depending on ageing temperature |
| Hardness | 40-47 HRC (aged) |
| Particle size | 15-45 µm / 15-53 µm |
| Production | Gas atomization (VIGA) |
| Standards | AMS 5864 · UNS S13800 · EN 1.4534 |
Frequently Asked Questions
How much does 13-8Mo powder cost?
13-8Mo AM powder typically quotes $60-120 per kg. Verified suppliers on this page provide current quotes, usually within 24 hours.
What heat treatment does printed 13-8Mo need?
Solution anneal (~927°C) followed by ageing: H950 for peak strength (~1,500 MPa), H1050/H1150 for balanced toughness. Always stress-relieve before support removal.
Why choose 13-8Mo over 17-4PH?
13-8Mo offers higher toughness at comparable strength and better transverse ductility — favored for fracture-critical aerospace components where 17-4PH toughness is insufficient.
Which particle size should I order?
15-45 µm for fine aerospace features; 15-53 µm general purpose. Specify your machine model in the inquiry.
What documentation do aerospace buyers need?
AMS 5864 chemistry certificate, particle-size distribution, oxygen/nitrogen/hydrogen analysis and full lot traceability.
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