Plasma spraying and laser welding powder
Powder Technical Parameter Specification Application
Cobalt-based alloy powder
(St1)		 HRC¡«48-55
Working Temperature: Max. 900¡æ
Cr31.5 W12.5 C2.5 Ni3 Si1.4 Co£ºBal.		 Typical CoCrW alloy powder. Good wear resistance, high temperature resistance, shock resistance and adhesion resistance below 800¡æ. Plasma surfacing
Good for valve seat, shaft bearing, knife-edge etc.
Cobalt-based alloy powder
(St6)		 HRC¡«40-45
Working Temperature: Max. 900¡æ
Cr30 W4.5 C1 Ni3 Si1.4 B Co£ºBal.		 Typical CoCrW alloy powder. High temperature wear resistance. Plasma surfacing
Good for engine wave, high temperature high pressure valve, turbomachine blade.
Cobalt-based alloy powder
(St12)		 HRC¡«46
Working Temperature: Max. 900¡æ
Cr30 W8 C1.6 Ni3 Si1.4 Co£ºBal.		 Typical CoCrW alloy powder. High temperature wear resistance. Plasma surfacing
Good for engine valve, high temperature high pressure valve, sawtooth, screw gill.
Cobalt-based alloy powder
(St21)		 HRC¡«30
Working Temperature: Max. 900¡æ
Cr28 C0.25 Ni3 Si1 Mo5.5 Co£ºBal.		 Typical CoCrW alloy powder. High temperature wear resistance. Plasma surfacing
Good for turbomachine blade, fluid valve, valve seat etc.
Cobalt-based alloy powder
(St31)		 HRC¡«48-55
Working Temperature: Max. 900¡æ
Cr25.5 W7.5 C0.5 Ni10.5 Si1.0 Co£ºBal.		 Typical CoCrW alloy powder. High temperature wear resistance. Plasma surfacing
Good for turbomachine blade, extruding mode.
Cobalt-based alloy powder
(KF-Co50)		 HRC¡«50-53
Working Temperature: Max. 800¡æ
Cr21 W5 C0.1 Ni1 Si1.6 B2.4 Co£ºBal.		 Typical CoCrW alloy powder. High temperature wear resistance. Have certain self-fluxing properties. Plasma surfacing
Good for motorcycle valve.
Iron-based alloy powder
(Fe33-37)		 HRC¡«33-37
Working Temperature: Max. 500¡æ
Cr21 B1.5 Ni10 Si3.5 Mo2 Mn0.8 V0.7 Fe£ºBal.		 Moderate hardness. Good crack resistance and bead smooth. Plasma surfacing
Good for valve, thermal resistance idler roller.
Iron-based alloy powder
(Fe37-43)		 HRC¡«37-43
Working Temperature: Max. 500¡æ
Cr21 B1.7 Si3.5 Ni10 Mo2 Mn0.8 V0.7 Fe£ºBal.		 Better used mating with Fe33-37. Plasma surfacing
Good for valve sealing.
Iron-based alloy powder
(D507)		 HRC¡«30-35
Working Temperature: Max. 450¡æ
Equivalent composition GB D507 electrode. Conformity with GB EDCr-Al-15
Cr13 Fe: Bal.		 A general bead welding powder. The organization of welded layer is 1Cr13 ferrite steel. Bead welding for carbon steel and alloyed steel surface. Plasma surfacing
Good for shaft and moderate temperature high pressure valve.
The welded layer has air quenching properties.
Iron-based alloy powder
(D507Mo)		 EDCr-A2-15
Working Temperature: Max. 450¡æ
Ni6 W2 Cr13 Mo2.5 Fe£ºBal.		 The organization of welded layer is 1Cr13 ferrite steel. Good thermal stability and abrasion resistance. Good anti-scuffing properties mating with D577. Simple welding technology. Don¡¯t need preheating or postweld treatment. Plasma surfacing
The welded layer has air quenching properties. Good for moderate temperature high pressure valve.
Iron-based alloy powder
(D547Mo)		 HRC¡«37
Working Temperature: Max.650¡æ
Mn5 Si5 Ni10 Cr13 Fe£ºBal.
Conformity with GB EDCrNi-B-15		 CrNiSiMo type of valve deposited welding. Welded layer has good properties of high temperature anti- scuffing and abrasion resistance. High hardness at the high temperature, good thermal stability and fatigue resistance. Plasma surfacing
High temperature high pressure valve.
Aging hardening effect is obviously.
Iron-based alloy powder
(D577)		 HRC¡«¡Ý28
Working Temperature: Max. 600¡æ
Mn13 Si2 Ni6 Cr13 Fe Bal.
Conformity with GB EDCrMn-C-15		 High Chromium manganese austenitic steels. Good thermal stability. Good anti-scuffing properties mating with D507Mo. Simple welding technology. Don¡¯t need preheating or postweld treatment. Plasma surfacing
Good for moderate temperature high pressure valve.
Iron-based alloy powder
(KF310)		 HRC¡«55
Working Temperature: Max.600¡æ
Cr15 C0.14 B1 Fe Bal.		 Good shaping of welding patch. Used for laser cladding high hardness coating. The welded layer is air-hardening. Laser cladding
Surfacing welding for shaft.
Iron-based alloy powder
(KF314)		 HRC¡«20
Working Temperature: Max.650¡æ
Cr15 C0.1 B1 Si1 Ni10 Fe Bal.		 Good shaping of welding patch. Good toughness. Applied for laser cladding and plasma surfacing. Laser cladding, Plasma surfacing
Surfacing welding for shaft and priming coat for surfacing¡¯s working lining .
Iron-based alloy powder
(Fe901)		 HRC¡«55
Working Temperature: Max.650¡æ
Cr15 B1.6 Si1.2 Mo0.8 Fe Bal.
 High hardness of welding patch. High toughness. Good crack resistance property. Applied for laser cladding and plasma surfacing. Laser cladding, Plasma surfacing
Surfacing welding for shaft.
Iron-based alloy powder
(Fe62)		 HRC¡«62-67
Working Temperature: Max.540¡æ
C5 Si1 B1.8 Cr43 Fe Bal.		 High hardness of welded layer. Good wear resistance. Can be used as wear resistance and corrosion resistance coating under the working condition of room or elevated temperature. Deposited welding the joint of petroleum rods, water turbine blade, blast furnace top bell, mud pump, breaking machine, backing block etc.
Iron-based alloy powder
(KF-Ni60)		 HRC¡«58-62
Working Temperature: Max.650¡æ
Ni Cr B Si Fe		 Low friction ratio, excellent anti-metal hard surface wearing. Good for farm parts, extruder screw.
Iron-based alloy powder
(GH01)		 HRC¡«32(800¡æ)
HRC¡«16(950¡æ)
Co6 Cr6 Ti1 Mo3 Al4 W30 Fe3 Ni Bal. 		Good high temperature red-hardness, shock resistance and high temperature wear resistance. Good for big seamless steel pipe head, continuous caster blade. Used as hard surface of metallurgical hot rolling tool.
Copyright:SMM,Beijing General Research Institute of Mining & Metallurgy
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