T400 powder resistant to high temperatures and strong corrosion

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T400 Alloy Powder – Detailed Technical Description
1. Composition (wt%)
Co (Cobalt): Balance (Ensures high-temperature strength & corrosion stability)
Mo (Molybdenum): 28.5% (Primary hardening phase; resists reducing acids & wear)
Cr (Chromium): 8.5% (Forms Cr₂O₃ passive layer for oxidation resistance)
Si (Silicon): 2.6% (Improves fluidity in molten state; enhances scale resistance)
C (Carbon): 0.08% (Controls carbide formation for balanced hardness/toughness)
Fe (Iron): 1.5%, Ni (Nickel): 1.5% (Trace elements for cost optimization)


2. Key Properties

Corrosion Resistance: Outstanding in H₂SO₄, HCl, and chloride-rich media (e.g., seawater, brine). Mo-rich matrix resists pitting even at elevated temperatures.
Wear Resistance: High hardness (HRC 45–55) from Co-Mo carbides; ideal for abrasive/erosive environments.
Thermal Stability: Retains strength up to 1000°C; resists thermal fatigue and oxidation (Si/Cr synergy).
Process Compatibility: Optimized for laser cladding (low dilution), HVOF coatings, and PTA welding.


3. Customization Options

Particle Size Ranges:
10–45 μm: Fine powder for laser powder bed fusion (LPBF) 3D printing.
45–75 μm: Standard size for HVOF/plasma spray coatings.
75–150 μm: Coarse granules for PTA welding and hardfacing.

Microstructure Control: Adjust C/Si ratios to tailor carbide distribution (e.g., higher C for increased abrasion resistance).


Note: T400’s ultra-high Mo content makes it a niche solution for severe chemical and mechanical wear. We offer tailored compositions and particle distributions to fit your specific application (e.g., thicker coatings for slurry pumps or precision AM parts).


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