QuMed4122 Bobbin – Laser Welding Wire 1.4122 / ER430 mod. – 17 % Cr, 47–52 HRC

QuMed4122 is the identical-type filler for 1.4122 and other stainless 17 % chromium steels: EN ISO 14343-A G/W Z 17MoH · AWS A5.9 ER430 mod. · material no. 1.4122. At 0.40 % carbon it sits well above the related QuMed4115 — and that is exactly where the higher hardness of 47–52 HRC comes from.The classic application is sealing faces of gas, water and steam fittings: there the deposit has to be hard enough to seal permanently and stay corrosion-resistant at the same time. Service temperature up to 450 °C.Recommended base materials1.4122 — identical-typeOther identical-type 17 % chromium steels and cast steel gradesSealing faces on unalloyed steels (build-up)Typical applicationsSealing faces of gas, water and steam fittingsJoint and build-up welding on stainless Cr steelsComponents up to 450 °C service temperatureRepairs on 1.4122 componentsProperties and advantages47–52 HRC — the hardest deposit of the QuMed rangeIdentical-type to 1.4122 — same behaviour in heat treatment and finishingStainless, for sealing faces in contact with mediaWeld metal after heat treatment (760 °C / 2 h): Re 550 MPa · Rm 750 MPa · A 12 %Rod form advantage: Ideal for manual build-up welding with constant wire feed — also on sealing edges that are hard to access.Rod form: Rod lengths 1000 mm and 333 mm, Ø 0,2 mm – 0,8 mm. Material analysis (wt.-%)C 0.40 | Si 0.50 | Mn 0.45 | Mo 1.1 | Cr 16.5 | Ni 0.5 | Fe balance

QuFe53 is the hardest martensitic Cr wire in the quada range: 1.4122 · ER430 mod. · 17 % chromium · 47–52 HRC.Its classic use is the sealing faces of gas, water and steam valves — wherever hardness and corrosion resistance are needed at once, up to 450 °C. With 0.40 % carbon, however, the wire is crack-sensitive: preheating to 200–300 °C is not a recommendation but a requirement.Recommended base materials1.4122 — identical-typeOther identical-type 17 % chromium steels and cast steel gradesSealing faces on unalloyed steels (build-up)Typical applicationsSealing faces of gas, water and steam valvesValve seats and shut-off elements up to 450 °CHard, corrosion-resistant functional surfacesRepairs on 17 % Cr steelsProperties and advantages47–52 HRC — the hardest deposit of the QuMed rangeIdentical-type to 1.4122 — same behaviour in heat treatment and finishingStainless, for sealing faces in contact with mediaWeld metal after heat treatment (760 °C / 2 h): Re 550 MPa · Rm 750 MPa · A 12 %Bobbin form: K125, K250, K80, MA125, SH253 — wire weight 100 g–500 g, Ø 0,2 mm – 0,8 mm. Material analysis (wt.-%)C 0.40 | Si 0.50 | Mn 0.45 | Mo 1.1 | Cr 16.5 | Ni 0.5 | Fe balance

QuNi41 is a NiFe filler metal (approx. 59 % nickel, balance iron) for welding and repairing cast iron — to EN ISO 1071: S C NiFe (material ~2.4560). It suits ferritic and austenitic ductile cast iron (GJS / GGG, nodular iron) as well as build-up welding on grey iron (GJL / GG). Decisive in practice: the weld metal is work-hardening, machinable, polishable and chrome-platable — the repaired area can be finished just like the base material.Recommended base materialsGJS (GGG) — ductile / nodular cast iron, ferritic and austeniticGJL (GG) — grey cast iron (build-up welding)Other common cast iron gradesDissimilar joints with unalloyed and high-alloy steel, copper and nickel alloysTypical applicationsTool and mould repair — finishing by machining, polishing and chrome plating possibleGGG valves and pump housings — repair of cast componentsBuild-up and joining welds on ductile cast iron (GJS/GGG)Build-up welding on grey iron grades (GJL/GG)Dissimilar joints cast iron ↔ steel, copper, nickel alloysCorrosion-resistant claddingProperties and advantagesFinishable: work-hardening, machinable, polishable, chrome-platableNiFe weld metal absorbs carbon from the cast iron without becoming brittleSuitable for ferritic and austenitic nodular ironAlso for dissimilar joints to steel, copper and nickel alloysMechanical properties (pure weld metal, 20 °C): Re 300 MPa | Rm 500 MPaBobbin form: K125, K250, K80, MA125, SH253 — wire weight 100 g–500 g, Ø 0,3 mm – 0,8 mm. Material analysis (wt.-%)Ni 59.0 | Fe balance | Mn 1.00 | C 0.1 | Si 0.1

QuMed4115 is a martensitic 17 % Cr wire with molybdenum: EN ISO 14343-A G/W 17Mo · AWS A5.9 ~ER430 · material no. 1.4115. It is a hardfacing wire: the weld metal reaches 39–45 HRC straight from the welding process, without heat treatment.It is explicitly designed for single-layer welds. The molybdenum content of 1.2 % keeps the wear resistance intact at elevated temperatures — that is the difference from a plain Cr hardfacing wire. Added to this is resistance to water, sea water, steam and dilute organic acids.Recommended base materials1.2085, 1.4057Similar martensitic base materialsHardfacing on unalloyed and low-alloy steels and cast steelHardfacing on hot-work steels and high-alloy gradesTypical applicationsWear-resistant hardfacing — designed for single-layer weldsComponents subject to wear at elevated temperatureComponents in contact with water, sea water or steamBuild-ups on hot-work steelsProperties and advantages39–45 HRC straight from the welding process — no heat treatment requiredWear-resistant also at elevated temperatures (Mo 1.2 %), high hot strengthResistant to water, sea water, steam, dilute organic acidsWeld metal: Re 490 MPa · Rm 690 MPa · A 15 %Bobbin form: K125, K250, K80, MA125, SH253 — wire weight 100 g–500 g, Ø 0,2 mm – 0,6 mm. Material analysis (wt.-%)C 0.22 | Si 0.7 | Mn 0.7 | Mo 1.2 | Cr 17.5 | Ni 0.30 | Fe balance

QuFe53 is the hardest martensitic Cr wire in the quada range: 1.4122 · ER430 mod. · 17 % chromium · 47–52 HRC.Its classic use is the sealing faces of gas, water and steam valves — wherever hardness and corrosion resistance are needed at once, up to 450 °C. With 0.40 % carbon, however, the wire is crack-sensitive: preheating to 200–300 °C is not a recommendation but a requirement.Recommended base materials1.4122 — identical-typeOther identical-type 17 % chromium steels and cast steel gradesSealing faces on unalloyed steels (build-up)Typical applicationsSealing faces of gas, water and steam valvesValve seats and shut-off elements up to 450 °CHard, corrosion-resistant functional surfacesRepairs on 17 % Cr steelsProperties and advantages47–52 HRC — the hardest deposit of the QuMed rangeIdentical-type to 1.4122 — same behaviour in heat treatment and finishingStainless, for sealing faces in contact with mediaWeld metal after heat treatment (760 °C / 2 h): Re 550 MPa · Rm 750 MPa · A 12 %Rod form advantage: Ideal for manual build-up welding with constant wire feed — also on sealing edges that are hard to access.Rod form: Rod lengths 1000 mm and 333 mm, Ø 0,2 mm – 0,8 mm. Material analysis (wt.-%)C 0.40 | Si 0.50 | Mn 0.45 | Mo 1.1 | Cr 16.5 | Ni 0.5 | Fe balance

QuNi41 is a NiFe filler metal (approx. 59 % nickel, balance iron) for welding and repairing cast iron — to EN ISO 1071: S C NiFe (material ~2.4560). It suits ferritic and austenitic ductile cast iron (GJS / GGG, nodular iron) as well as build-up welding on grey iron (GJL / GG). Decisive in practice: the weld metal is work-hardening, machinable, polishable and chrome-platable — the repaired area can be finished just like the base material.Recommended base materialsGJS (GGG) — ductile / nodular cast iron, ferritic and austeniticGJL (GG) — grey cast iron (build-up welding)Other common cast iron gradesDissimilar joints with unalloyed and high-alloy steel, copper and nickel alloysTypical applicationsTool and mould repair — finishing by machining, polishing and chrome plating possibleGGG valves and pump housings — repair of cast componentsBuild-up and joining welds on ductile cast iron (GJS/GGG)Build-up welding on grey iron grades (GJL/GG)Dissimilar joints cast iron ↔ steel, copper, nickel alloysCorrosion-resistant claddingProperties and advantagesFinishable: work-hardening, machinable, polishable, chrome-platableNiFe weld metal absorbs carbon from the cast iron without becoming brittleSuitable for ferritic and austenitic nodular ironAlso for dissimilar joints to steel, copper and nickel alloysMechanical properties (pure weld metal, 20 °C): Re 300 MPa | Rm 500 MPaRod form advantage: Ideal for manual repair of individual casting defects with constant wire feed — for example on tools, moulds and valves. Available in 333 mm and 1,000 mm.Rod form: Rod lengths 1000 mm and 333 mm, Ø 0,3 mm – 0,8 mm. Material analysis (wt.-%)Ni 59.0 | Fe balance | Mn 1.00 | C 0.1 | Si 0.1

QuNi41 is a NiFe filler metal (approx. 59 % nickel, balance iron) for welding and repairing cast iron — to EN ISO 1071: S C NiFe (material ~2.4560). It suits ferritic and austenitic ductile cast iron (GJS / GGG, nodular iron) as well as build-up welding on grey iron (GJL / GG). Decisive in practice: the weld metal is work-hardening, machinable, polishable and chrome-platable — the repaired area can be finished just like the base material.Recommended base materialsGJS (GGG) — ductile / nodular cast iron, ferritic and austeniticGJL (GG) — grey cast iron (build-up welding)Other common cast iron gradesDissimilar joints with unalloyed and high-alloy steel, copper and nickel alloysTypical applicationsTool and mould repair — finishing by machining, polishing and chrome plating possibleGGG valves and pump housings — repair of cast componentsBuild-up and joining welds on ductile cast iron (GJS/GGG)Build-up welding on grey iron grades (GJL/GG)Dissimilar joints cast iron ↔ steel, copper, nickel alloysCorrosion-resistant claddingProperties and advantagesFinishable: work-hardening, machinable, polishable, chrome-platableNiFe weld metal absorbs carbon from the cast iron without becoming brittleSuitable for ferritic and austenitic nodular ironAlso for dissimilar joints to steel, copper and nickel alloysMechanical properties (pure weld metal, 20 °C): Re 300 MPa | Rm 500 MPaTIG advantage: For larger build-up areas and cast iron repairs away from the laser — Ø 1.0 mm, rod length 1,000 mm. Preheat the casting and let it cool slowly to avoid hardening in the heat-affected zone.TIG form: for manual repair welding. Material analysis (wt.-%)Ni 59.0 | Fe balance | Mn 1.00 | C 0.1 | Si 0.1