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AGA CW Handbook A4_32130-UK
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shielding
gases for other metals 9.3 shielding gases for nickel-based alloys the corrosion resistance of stainless steels is insufficient for many ap- plications. the corrosion resistance properties of stainless steel can be further improved by adding alloys (e.g. nickel, chromium and molybde- num). if the total share of alloys exceeds 50%, the metal is no longer referred to as steel; it is now a nickel-based alloy. some of these alloys do not contain iron at all. nickel-based alloys are used when excellent corrosi- on resistance is required of the material. we recommend mison
® ar or mison ® h2 shielding gas for the tig wel- ding of nickel-based alloys. the hydrogen added to the shielding gas reduces the amount of surface oxides and increases the welding speed. inert shielding gases must be used in mig welding, too. the most recommended alternative is mison ® ar. the small amount of nitrogen monoxide (no) added to it makes the arc more stable, resul- ting in only minor surface oxidation and spatter-free welding. the use of argon
-helium mixtures is also possible, when you wish to improve the fluidity of the molten pool. process filler shielding gas properties argon with or without filler material. argon 4.6 for demanding applications. provides a clean, metallic weld surface. a welding shoe is often necessary. mison ® ar for less demanding applications. provides a more stable arc than argon. arc is easy to ignite. root protection argon 4.6 inert all mison ® shielding gases remove ozone generated during welding and improve the welder’s work environment. process filler shielding gas properties mig solid wire mison ® ar for less demanding applications. provides a more stable arc than argon or argon-helium mixtures. arc is easy to ignite. tig with or without filler material mison ® ar for less demanding applications. provides a more stable arc than argon or argon-helium mixtures. arc is easy to ignite. mison ® h2 the added hydrogen provides a higher welding speed, better penetration and reduced oxidation. root protection formier ® 10 reducing. flammable gas mixture argon inert all mison ® shielding gases remove ozone generated during welding and improve the welder’s work environment.
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