Hardfacing - Welding Alloys Group

1 HardfacingCladding - Weld overlay - SurfacingWA Cored WiresWeldingAlloysGroupWeldingAlloysGrou p This catalogue presents a selection of standard products for Hardfacing , cladding and thermal arc spraying applications. Welding Alloys cored wires for joining applications feature in a separate catalogue. We will gladly examine any special request. Please do not hesitate to consult Welding Alloys technology and manufacturingSince its foundation in 1966, the Welding Alloys Group , an independent Group , has specialised in the manufacture of cored Welding wires for joining, cladding and Hardfacing applications 100% produced in our modern factories 100% our own and quality criteria are becoming ever more stringent and require ever more complex materials.

2 Shortages of raw materials are leading increasingly to the development of composite components, with surfacing provided by the Hardfacing method, using sophisticated Alloys . Welding Alloys Group are proud to bring ground-breaking Hardfacing technology to our Alloys performance guarantee means we will always recommend the product and service best suited to our customers technical spark solves your industrial challengesIntroduction 2 Definitions and using this catalogue 4 Welding Alloys cored wires 5 Hardfacing 6 Work-hardening manganese Alloys 6 Low and medium Alloys 8 Heat treated steels for tooling 10 Anti-abrasion 12 Ferritic and mertensitic stainless steels 16 Copper-aluminium alloy

3 18 Nickel base 20 Cobalt base 22 Cladding 24 Packaging 27 Technical information 27 Alphabetical index 27 Contents23 Product NameComposition [%]CMnSiCrHARDFACE wiresHardfacing by arc Welding is a surfacing operation to extend the service life of industrial components, preemptively on new components, or as part of a maintenance programme. The result of significant savings in machine downtime and production costs has meant that this process has been adopted across many each industrial application and wear phenomena, there is a Welding Alloys cored Welding wire to provide wear resistance.

4 Due to the unrivalled flexibility and ease of application, cored wires are used in many situations in workshops, on site, for new parts or for repair. An alloy may be deposited by various Welding methods: Open arc Welding (O) Gas shielded Welding MIG/MAG (G) Submerged arc Welding (S) thermal spraying (as shown by the symbol) Welding Alloys Quality Control teams are an integral part of the production process at all our production sites, to ensure our continued commitment to delivering high quality, standard-setting Welding wear phenomena and material attributesHardfacing - Cladding - thermal Arc Spraying45 Definitions and using this catalogueGas shielded thermal arc sprayingSurface finish required?As welded, machined, polishedDeposit thickness - number of layers?

5 Technical objectives?PerformanceReliabilityService lifetimeOpen arc Submerged arcWhich Process?WhichAlloy?Size and shape of work piece to be hardfaced?Operational difficulties?Working environment? Welding in a workshopOn siteAvailable Welding equipment?Base material - chemical composition?Working conditions?Abrasion Impact thermal fatigue CorrosionWear mechanismDescriptionMetal / metal frictionMetal surfaces in relative motion forced into contact with or without lubricant. Degradation by the formation of micro-welds between the contacting abrasionWear by relative movement of mineral particles of suitable hardness, shape and texture to remove material from the metal under pressureWear by relative movement under pressure of mineral particles of suitable hardness, shape and texture to remove material from the metal surface, leaving superficial abrasionAs above but in a high-temperature environment, leading generally to softening of the metal or its high-speed impacts between mineral particles and a material surface.

6 Local destruction by tearing out of metallic out of grains from the metal surface by the formation and implosion of bubbles in a liquid in rapid between two materials, one of which provokes deformation or rupture of the surface of the other. This phenomenon is controlled by the toughness or ductility of the two fatigueCyclic deformation not exceeding the elastic limit of the material. Degradation over time by localised stress fatigueCyclic exposure to high temperatures leading to permanent deformation by alternate expansion and contraction. Alteration of the structure and properties of the oxidationCreation of a poorly adhering oxide layer that reforms constantly. Degradation by loss of material of the material by chemical reaction with its environment. Complex phenomenon involving numerous or claddingRepair by resurfacing to the original or specified dimensions.

7 Application of a corrosion-resistant protective layer or assemblyLayer of weld metal providing a good metallurgical transition between the base metal and the coating. For welded joints between similar or dissimilar abilityAbility of the material to resist impact, heat, friction and abrasion simultaneously for edge retention of cutting of a material to increase its surface hardness under the effect of impact or high pressure. In general, this increases wear for machining by removal of metal shavings, turning, milling or drilling. Chemical compositionEach alloy is composed of elements expressed as percentages by weight. The values of those elements essential to the physical, chemical and mechanical properties of the deposit are highlighted in the composition :The go-to provider of advanced Welding consumablesShielding Gas and Flux Recommendations - HARDFACE (a cored wire with a seam) the recommended shielding gas is M21: Argon + 15-25% CO2 - ROBODUR / ROBOTOOL (a seamless cored wire) the recommended shielding gases are M12: Argon + CO2 M13: Argon + O2 M21: Argon + 15-25% CO2 -A neutral flux is required for submerged arc weldingProduct NameProcessO: open arcG: gas-shieldedS.

8 Sub-arcStandard diameters [mm]EN 14700 standardMetal / Metal frictionMineral abrasionAbrasion under pressureHot abrasionErosionCavitationImpactMechanica l fatigueThermal fatigueHot oxidationCorrosionRebuilding or claddingBuffer layer or assemblyCutting abilityWork-hardeningMachinabilityDescri ption and applicationsHARDFACE 19 9 to uuuuu uu uu Highly resistant to cracking - austenitic structure that work-hardens strongly Wide field of application: buffer layer before Hardfacing , assembly of wear plates and armouring, and of manganese steels and dissimilar joints to to to Fe9u uu uu uu uu High rate of work-hardening Non-magnetic deposit strongly resistant to impact and high pressure Rebuilding, buffer layers and assembly of manganese steels Buffer layer before Hardfacing with chromium cast iron Applications: repair work on railway frogs and crossings, hammers, bars, cones and jaws for crushers to to to Fe9u uuu uuu uuu uu Colour and structure of the deposit similar to Hadfield type manganese steel Applications.

9 For retouching of casting to NameComposition [%] - Fe balanceHardness - 3 layersCMnSiCrNias weldedwork hardenedHARDFACE 19 9 HB47 HRCHARDFACE HB48 HRCHARDFACE HB46 HRCS uited to thermal arc sprayingu Suitable u u Highly suitableHardfacing - Cladding - thermal Arc spraying 67 Hardfacing - Work-hardening manganese alloysSuited to thermal arc spraying u Suitable u u Highly suitableProduct NameProcessO: open arcG: gas-shieldedS: sub-arcStandard diameters [mm]EN 14700 standardMetal / Metal frictionMineral abrasionAbrasion under pressureHot abrasionErosionCavitationImpactMechanica l fatigueThermal fatigueHot oxidationCorrosionRebuilding or claddingBuffer layer or assemblyCutting abilityWork-hardeningMachinabilityDescri ption and applicationsHARDFACE to Fe1uuu uu uu u Crack-resistant deposit Repair, rebuilding and buffering of castings Automated Welding of large parts, semi-automated Welding for outdoor use Applications: shafts, rollers, wheels, etc.

10 In the mining and civil engineering to to Fe1uuu uu uu to to Fe1uuu uu uu to to Fe8uuuu Self-tempering deposit for Hardfacing Wide field of application in the mining and civil engineering industries: bucket teeth and blades, slides, conveyor screws, to K to Fe1uu uu uu uu u Seamless copper coated tubular wires for gas-shielded Welding Excellent weldability Rebuilding and buffering of forged or rolled mechanical components: transmission shafts, rolls or chocks for steel making, roller bearing seats, rollers for gantry cranes, gear teeth, forging tools and diesROBODUR K to Fe1uu uu uu uu uROBODUR K to Fe2uu uu uu uu uROBODUR K to Fe2uuuuu Seamless copper coated tubular wires for gas-shielded Welding Retains a high hardness level to 400 C Excellent weldability Hardfacing applications for all industries: seats, cams, raceways, press and transport screws ROBODUR K CERAMIC is particularly suited for Hardfacing new or worn ceramic molds thanks to the higher hardness level achieved from the first layerROBODUR K to Fe8uuuuROBODUR K to Fe8uuuuHARDFACE ROBODUR.