焊接材料-DIN-8555-标准

v1.0可编辑可修改v1.0可编辑可修改PAGEPAGE4v1.0可编辑可修改PAGEExampleFidur23/250

E23UM250CKNPTZ12345

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Shortsymbolformanualarcwelding

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symbolAlloygroupandapplication1Unalloyedupto%Corlow-alloyedupto%Canduptomax.5%alloyconstituentsCr,Mn,Mo,Niintotal;softsurfacing,e.g.fill-upwelding,bufferinglayers2Unalloyedwithmorethan%Corlow-alloyedwithmorethan%Canduptomax.5%alloyconsitutentsCr,Mn,Mo,Niintotal;runningwheels3Alloyed,withthepropertiesofhotworkingsteel,hotworkingtools4Alloyed,withthepropertiesofhigh-speedsteel,cuttingtools,mandrels,shearblades,cutters,drillbits5Alloyedwithmorethan5%CrandlowC-content(uptoapprox.%C)forscale-resistant(alsoagainstsulphurousgases)andfrom12%Cr-contentcorrosion-resistantsurfacings,e.g.valveparts,plungers,furnaceparts6Alloyedwithmorethan5%CrandhigherC-content(approx.-%C)cuttingtools,shearblades,rollersforcoldrollingmills7Mnaustenitewith11to18%Mnandmorethan%Candupto3%Nisurfacingsonlargesurfaces,e.g.wearplates,jawplates,diggingteeth,bolts8Cr-Ni-Mn-austenitecrusherpartsformediumstress,switchtongue,rails,waterturbineparts9Cr-Ni-steel(corrosionandheatresistant)corrosionandheatresistantsurfacings10HighC-contentandhighCr-alloyedwithandwithoutadditionalcarbideformer,repairsonminingandsteelplantequipment,surfacingonmachinepartsintheconstructionindustryandagriculture,overburdenexcavators,sintercrushers220Co-based,Cr-W-alloyed,withorwithoutNiandMofittingsofalltpyes,valveseatsofexhaustvalvesincombustionengines,valveseatsofsteamengines,pumpshaftsandsimilarpartswhichareexposedtoheavycorrosionanderosion21Carbide-based(sintered,castorfolled)toolsandmachinepartsforworkinginstonyearth,drillsandsimilartools,pressschrewsintheceramicindustry22Ni-based,Cr-alloyed,Cr-B-alloyedvalves,screws,shafts,.forconcretepumps23Ni-based,Mo-alloyedwithorwithoutCrhotworkingtools,contactsurfacesofvalvesinchemicalapparatuses,claddingsatworkingedgesofcuttingsfromNi-Cr-Mo-alloyswhichareusedforworkathightemperatures30Cu-based,Sn-alloyedbearingshell,slides,shafts,valves,housings,snailandhelicalgearwheels,guideandrunningwheels,fittings31Cu-based,Al-alloyedmachinepartsandfittingsinthechemicalindustry,food,paperandelectricalindustry32Cu-based,Ni-alloyeddistillators,seawaterpipes,condensers,coolers,chemicalapparatuses,heatexchangers3SymbolTypeGWrolledGOcastGZdrawnGSsinteredGFfilledUMcoated4ClassificationofhardnessHardnessclassHardnessdegree4037–42HRC45>42–47HRC50>47–52HRC55>52–57HRC60>57–62HRC65>62–67HRC70>67HRC150125–175HB200>175–225HB250>225–275HB300>275–325HB350>325–375HB400>375–450HB

5SymbolPropertiesofweldmetalCcorrosion-resistantGabrasion-resistantKwork-hardenable*1Nnon-magnetizablePimpact-resistantRstainlessSedge-holding(high-speedsteel)Tcreep-resistant(high-speedsteel)Zheat-resistant(temp.>600C)*1Thewearpropertiesoftheweldmetaldependonawork-hardeningafter-treatment.Itcanbeachieve