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Hunan Mana Materials Technology Co.,Ltd. is located in Changsha city,Hunan province,China ,which is the hometown of non-ferrous metals.Mana is a technology enterprise focusing on the research and development,production and sales of new materials.At present, the main products on sale include electronic paste, metal powders, brazing materials,3D printing/VIGA equipment,R&D production and sales of customized products. With more than ten years of metal powder manufaturing technology and experience, we provide highly competitive high-quality products.
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High Quality
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T-400 (UNS R30400) is a cobalt-based, self-fluxing, wear-resistant alloy powder containing molybdenum, chromium, and silicon.
Its microstructure features a significant volume of Laves-type intermetallic compounds (Co₃Mo₂Si phase), which provide excellent resistance to galling, abrasive wear, and scuffing under dry-friction or unlubricated operating conditions. It also offers good high-temperature strength and corrosion resistance.
Compared to the T-800 alloy in the same series, T-400 has a lower chromium content and superior toughness, making it well-suited for the repair and surface reinforcement of wear-prone components in low-to-medium temperature corrosive environments. T-400 is a classic cobalt-based powder for applications involving dry friction and a risk of galling; its higher toughness-relative to T-800-makes it ideal for components such as valves, pumps, and extrusion screws that operate under moderate temperature and moisture conditions.
Chemical Composition(wt%)
|
Element |
Co |
Cr |
Mo |
Si |
C |
Ni |
Fe |
|
Content(wt%) |
Bal. |
8.0–9.5 |
26–29 |
2.0–3.5 |
≤0.08 |
≤1.5 |
≤1.5 |
PTA Surfacing Hardness:50-60HRC
Performance Characteristics
Excellent galling resistance: Under unlubricated dry-friction conditions, the Laves phase effectively prevents metal-on-metal seizing.
·Resistance to abrasive wear: High-hardness intermetallic phases provide resistance against erosion by hard particles.
·Corrosion resistance: The cobalt-based matrix, combined with its molybdenum content, offers resistance to corrosion from weak acids, weak alkalis, and seawater.
·Superior toughness compared to T-800: Exhibits lower crack sensitivity, making it suitable for components with complex geometries.
Recommended Process
|
Process |
Particle Size |
|
HVOF (High-Velocity Oxy-Fuel) thermal spraying |
15–45 μm |
|
Plasma spraying (APS) |
45–105 μm |
|
PTA Plasma Surfacing |
45–150 μm |
|
Laser Cladding |
45–150 μm |
Atomization process: Nitrogen atomization
Typical Application Areas
-
Valve Industry: Sealing surfaces for gate valves, globe valves, and butterfly valves (erosion resistance + galling resistance)
-
Petrochemical Industry: Pump shafts, plungers, and mechanical seal rings
-
Extrusion Machinery: Screws and barrels for plastic extruders (wear resistance + dry friction without lubrication)
-
Energy and Power: Boiler valves and steam turbine blade repair
-
General Machinery: Bushings, sliding blocks, guide rails, and plunger pump components
Compare with T-800
|
Item |
T 400 |
T 800 |
|
Cr |
8.5% |
17.5% |
|
Mo |
28.0% |
28.5% |
|
HRC |
51–58 HRC |
54–62 HRC |
|
Toughness |
better |
brittle |
|
Applicable Scenarios |
Medium temperature, corrosion + dry grinding |
High temperature oxidation resistance, high hardness and wear resistance |
|
|
|
Cobalt Alloy Powder Grade |
|
||||||||
|
Model |
HRC |
Wt% |
Typical uses |
||||||||
|
C |
Cr |
Si |
W |
Ni |
Fe |
Mn |
Mo |
Co |
|||
|
Co1 |
48-54 |
2.5 |
30 |
1 |
12 |
≤3 |
≤3 |
≤1 |
≤1 |
Bal |
Valve seats, bearings, knife edges, etc. |
|
Co3 |
48-54 |
2.3 |
30 |
1 |
12 |
≤3 |
≤3 |
|
|
Bal |
Needle valve seat, valve seat, rolling mill guide roll |
|
Co6 |
38-44 |
1.2 |
30 |
1 |
4.5 |
≤3 |
≤3 |
≤1 |
≤1 |
Bal |
Engine valves, high-temperature and high-pressure valves, turbine blades |
|
Co12 |
42-48 |
1.4 |
30 |
1.4 |
8.5 |
≤3 |
≤3 |
≤1 |
≤1 |
Bal |
High-temperature and high-pressure valves, saw teeth, spiral push rods, etc. |
|
Co20 |
52-57 |
2.5 |
32 |
1 |
18 |
≤3 |
≤3 |
≤1 |
≤1 |
Bal |
Bearing sleeve, wear-resistant plate |
|
Co21 |
20 |
0.2 |
28 |
2 |
0.15 |
≤3 |
2 |
≤1 |
5.5 |
Bal |
Turbine blades, various liquid valves, valve seats |
|
Co25 |
≤24 |
0.1 |
20 |
1 |
15 |
10 |
≤3 |
≤2 |
|
Bal |
Stamping and extrusion dies |
|
Co31 |
28-34 |
0.5 |
26 |
1 |
8 |
10.5 |
2 |
≤1 |
|
Bal |
Extrusion die, gas turbine blade |
|
Co156 |
43 |
1.6 |
28 |
1.15 |
4.5 |
3 |
0.05 |
1 |
1 |
Bal |
High-temperature and high-pressure valves, hot forging dies |
|
Co157 |
50-56 |
0.1 |
22 |
1.5 |
5 |
≤3 |
≤3 |
≤0.5 |
≤1 |
B:2.5 |
Motorcycle valve top |
|
Co158 |
40-46 |
0.8 |
29 |
1.5 |
5.5 |
≤3 |
≤3 |
≤1 |
≤1 |
B:0.8 Bal |
High-temperature and high-pressure valves, saw teeth, spiral push rods, etc. |
|
CoX40 |
34 |
0.85 |
25 |
0.3 |
7.5 |
10 |
1 |
0.3 |
|
Bal |
Stamping and extrusion dies for gas turbines |
|
CoT400 |
50-60 |
0.08 |
8.5 |
2.6 |
|
1.5 |
1.5 |
|
28.5 |
Bal |
Gate valves used in high-temperature and highly corrosive media, extruders |
|
CoT800 |
52-58 |
0.08 |
18 |
3.4 |
|
1.5 |
1.5 |
|
28.5 |
Bal |
Gate valves used in high-temperature and highly corrosive media, extruders |
|
CoF |
38-44 |
1.7 |
26 |
1.2 |
12 |
22 |
≤3 |
≤1 |
≤1 |
Bal |
Engine intake and exhaust valves |
Application
Additive manufacturing
Powder metallurgy(PM)
Metal injection moldinb(MIM)
Our Testing Equipment
Our factory & quipment
Our factory & Office
Certifications
Our Packing
FAQ
Q: What is MIM feedstock?
A: MIM feedstock is compound of metal powder + polymer binder. It is the raw pellet material fed directly into injection molding machine for MIM production.
Q: What debinding type should I choose for 316L MIM feedstock?
A: Catalytic debind is preferred for mass production. Thermal debind is better for small batches. We can adjust formula based on your furnace.
Q: Can I get free sample?
A: We offer trial samples for process evaluation. Please contact our sales team for sample quotation.
Q: Is 316L MIM material corrosion resistant?
A: Yes. Sintered 316L MIM parts have excellent resistance against salt water, acid and humid environment.
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