Cobalt Based Alloy Powder

Ultra Fine Co1/2/3/5/6/12/20/21/158/f/400 Complete Series Cobalt Based Alloy Powder

Chemical composition and hardness:

Specifications	C	Si	Cr	Fe	Ni	W	Mo	Mn	Rare earth	Co	HRC
Co-06	1.0～1.2	1.0～2.0	28.0～32.0	≤3	2.0～3.0	4.0～6.0	0.5～1.5	0.4～0.8	—	Allowance	38～46
Co-06A	1.0～1.2	1.0～2.0	28.0～32.0	≤3	2.0～3.0	4.0～6.0	1.0～2.0	0.4～0.6	Micro scale	Allowance	38～46

Co-10 cobalt based alloy powder:

This powder is a Co-Cr-W-C-B-Si type self melting alloy powder, which has comprehensive properties of heat resistance, wear resistance, corrosion resistance, and good spray welding process performance. It can be used in high-temperature wear resistance, gas corrosion resistance, and impact resistance under alternating cold and hot conditions. However, the substrate must be preheated to around 500 ℃ during spray welding to reduce its crack sensitivity.

Main uses and processes:

Recommended for pre protection of high-pressure exhaust valve sealing surfaces, internal combustion engine exhaust valves, etc. Suitable for plasma spray welding and high-frequency remelting processes.

Chemical composition and hardness:

Specifications	C	B	Si	Cr	Fe	Mo	Ni	W	Mn	Co	HRC
Co-10	0.7～0.9	0.5～1.0	1.5～2.5	24.0～28.0	≤3	0.4～0.6	2.0～3.0	5.0～7.0	Micro scale	Allowance	40～46

Co-08 cobalt based alloy powder:

The powder has increased its tungsten and carbon content based on Co-06 powder, thereby enhancing its high-temperature red hardness and wear resistance. The weld overlay has good corrosion resistance, heat resistance, and wear resistance, and can still be used normally up to 800 ℃, making it suitable for machining. The powder is an improved powder of rare earth niobium trace element added on the basis of Co-08 powder, which refines the grain size and reduces the sensitivity of weld layer cracks. The inherent nitrogen fixation property of niobium element makes this powder suitable for welding 21-4N substrate valves.

Main uses and processes:

Suggested for welding on the conical surface of internal combustion engine exhaust valves. Suitable for plasma spray welding process.

Chemical composition and hardness:

Specifications	C	Si	Cr	Fe	Ni	W	Mo	Mn	Rare earth	Co	HRC
Co-08	1.2～1.5	1.0～2.0	28.0～32.0	≤3	2.0～3.0	8.0～10.0	0.5～1.5	0.4～0.8	—	Allowance	42～46
Co-08A	1.2～1.5	1.0～2.0	28.0～32.0	≤3	2.0～3.0	8.0～10.0	0.5～1.5	0.4～0.8	Micro scale	Allowance	42～46

Co-11 cobalt based alloy powder:

This powder is an improved powder suitable for oxygen acetylene flame spray welding process, which increases the content of B and Si elements on the basis of Co-03 powder. The spray welding process performance of the powder has been significantly improved, and the various properties of the weld layer are comparable to those of Co-03 powder.

Main uses and processes:

Recommended for welding on sealing surfaces of valves, valve seats, and shaft work pieces. Suitable for oxygen acetylene flame spray welding process and plasma spray welding process.

Chemical composition and hardness:

Specifications	C	B	Si	Cr	Fe	W	Ni	Co	HRC
Co-11	0.6～0.8	1.5～2.0	2.0～3.0	18.0～20.0	≤3	6.0～8.0	12.0～14.0	Allowance	40～45

CO55 cobalt based self melting alloy powder/CO55 cobalt based alloy powder: Cobalt based self melting alloy powders are usually developed on the basis of cobalt chromium tungsten alloys, which have better thermal strength and high-temperature oxidation resistance than nickel based alloys, as well as good corrosion resistance and wear resistance.

Chemical composition C/o.3   .Si/1.5  .Cr28.  Mn/1.  .Mo/1.  Ni/3  W/17.  Fe＜5   Bal Co

Co-02 cobalt based alloy powder:

Co-02 powder is the most widely used type of Co-Cr-W-C-B-Si alloy powder. The carbon and tungsten content is moderate, with good toughness and excellent corrosion resistance, high temperature resistance, impact resistance, and adhesive wear resistance. It can be used in a wide temperature range below 800 ℃. Co-02A powder is an improved version of Co-02 alloy powder. The added rare earth niobium trace element can refine the grain size, reduce the sensitivity of weld layer cracks, and the inherent nitrogen fixation property of niobium element makes this powder. Suitable for welding valves with 21-4N substrate.

Main uses and processes:

Suggested for welding on the conical surface of internal combustion engine exhaust valves. Suitable for high-frequency remelting process and plasma welding process.

Chemical composition and hardness:

Specifications	C	B	Si	Cr	Fe	W	Ni	Rare earth	Co	HRC
Co-02	0.8～1.2	0.5～1.2	1.0～2.0	28.0～32.0	≤3	4.0～6.0	2.0～3.0	—	Allowance	42～48
Co-02A	0.8～1.2	0.5～1.2	1.0～2.0	28.0～32.0