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Designation |
Process
O : Open-arc
G : Gas shielded
S : Submerged arc
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Standards DIN 8555
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Hardness
3 layers as welded
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Description and applications
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MF 8-GF-200/50-CKPRZ
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MSG 8-GF-200/50-CKPRZ
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UP 8-GF-200/50-CKPRZ
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180 HB
47 HRC
work hardened
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Corrosion and cavitation-resistant weld metal.The deposit work-hardens when subjected to impact or rolling loads.Suitable for rebuilding or as buffer layer before hardfacing. Used for welding of manganese steels and for welding dissimilar metals. |
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MF 7-GF-250/50-CKNPR
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MSG 7-GF-250/50-CKNPR
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UP 7-GF-250/50-CKNPR
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240 HB
48 HR
work hardened
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Highly resistant to impact and high pressures. Used for welding of manganese steels.Non magnetic deposit used for repair work on railway frags and crossings. Buffer layer prior to hardfacing with high chromium cast iron. |
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MF 7-GF-200/45-KNP
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MSG 7-GF-200/45-KNP
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210 HB
46 HRC
work hardened
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Surfacing of Hadfield manganese steels undergoing severe impact. Reclaiming crusher jaws and rolls, gyratory mantles, blow bars, swing hammers and other equipment subjected to high pressure and crushing. Not suitable for ferritic steels. Manganese steels should be welded as cold as possible. |
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200 HB
46 HR
work hardened
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Cr and Ni free variant of NM. For rebuilding and repair of cast manganese steels. The deposit has the same colour as the base material. Good resistance to both impact and wear. |
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MF 1-GF-250-P
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MSG 1-GF-250-P
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UP 1-GF-250-P
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260 HB
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Low priced rebuilding wires used for surfacing of castings, particularly for civil engineering applications, mining and quarrying. These products form series with increasing hardness. Typical applications : rollers, caterpillar track pads, bucket teeth |
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MF 1-GF-350-P
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MSG 1-GF-350-P
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UP 1-GF-350-P
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360 HB
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MF 3-GF-40/50-SPT
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MSG 3-GF-40/50-SPT
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UP 3-GF-40/50-SPT
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400 HB
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MF 6-GF-65-GP
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MSG 6-GF-65-GP
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UP 6-GF-65-GP
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650 HB
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MF 1-GF-250-P
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UP 1-GF-250-P
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250 HB
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Rebuilding wires for forged or rolled machine parts subjected to mechanical stresses. Weldable witout gas protection or submerged-arc. Theese products form a series with increasing hardness. |
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MF 1-GF-350-P
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UP 1-GF-350-P
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350 HB
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MF 2-GF-45-GP
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UP 2-GF-45-GP
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450 HB
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MF 6-GF-60-GP
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UP 6-GF-60-GP
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600 HB
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250 HB
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Seamless copper coated tubular wires for the same applications as theHARDFACE 250-350-450 and 600 series but for gas-shielded welding. |
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350 HB
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450 HB
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600 HB
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MF 6-GF-45-GPS
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MSG 6-GF-45-GPS
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UP 6-GF-45-GPS
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44 HRC
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For rebuilding thick layers on heavy parts subjected to high pressures and abrasion. Used for the rebuilding of blast furnace hoppers(burden area) and mill rolls on account of its low risk of cracking. |
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MF 6-GF-55-GPST
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MSG 6-GF-55-GPST
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UP 6-GF-55-GPST
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55 HRC
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High hardness up to 500°C. Avoid excessive build-up thickness. Preheat is necessary to avoid cracking. Good resistance to abrasive wear and erosion at high temperature. On heavy parts, use WLC for rebuilding or for buffer-layers and W for the capping layer. |
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60 HRC
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Seamless copper coated tubular wires. High speed steel that maintains its hardness up to 600°C. Used for the production or repair of high speed steel tooling and the rebuilding of cutting edges on carbon or low-alloy steel tooling. Typical applications: rebuilding parts subjected to metal / metal wear with no heavy impcact, such as machining tools, cold shearing blades. milling cutters, knives, wire guides, etc. |
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MF 3-GF-50-CGRT
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MSG 3-GF-50-CGRT
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UP 3-GF-50-CGRT
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47 HRC
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Surfacing of hot-working steels. Suitable for withstanding corrosion and metal / metal wear at high temperature. Surfacing of hot working stamping punches and dies, and continuous casting rollers. An economical alternative to stelliting. |
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43 HRC
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Products specially designed for repairing forging dies. Large surfaces are hardfaced with the softer deposit to avoid cracking. The areas subjected to the heaviest pressure and abrasion are built with the harder deposit. Each choice is a compromise between fatigue, abrasion resistance, hardness and the risk of cracking.
The following precautions should be taken: removal of fatigue zones, preheating, maintaining the temperature during welding, peening of each layer, heat treatment after welding. |
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52 HRC
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