OEM high precision stainless steel investment casting water pump impeller parts water pump impeller water pump impeller parts casting water pump impeller parts Material Austenitic Staniless Steel: 201,303,304,316,316L,1.4581,SCS14,SCS16 Hardening Stainless Steel: 17-4PH,410,420,440C Alloy Cast Steel: 4140,4150,4340,8620,GS-25CrMo4 Cast Alloy Tool Steel: CS-2,CS-7,CrWMn Carbon Steel: 1020,1025(WCB),1030,1040,1045,1050 Weight 2g-50kg Accuracy Class CT4-CT7 Surface roughness up to Ra1.6~Ra6.3 Mnimum thickness 2mm(1mm for small area) Tolerance Outer radius≥0.3mm,inner fillet≥0.5mm Longest blind hole(diameter 10mm) 30mm Machining turning,milling,drilling,boring,threading,grinding machine,CNC/NC machining and test facilities. Heat treatment anneal,quenching,normalizing,carburizing,solution. Surface treatment zinc coating,black oxide,black painting,power painting,mirror polish,satin polish etc. Stardard applied ASTM,ICI,BS,DIN,JIS,ISO Drawings software Pro-E,Solidworks,AutoCAD etc. File format avaliable Igs,Stp,X-T,PDF,Jepg,Jpg
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