QuCu81 Bobbin – Laser Welding Wire Aluminium Bronze CuAl8Ni2 / 2.0922 – Ductile, 140 HB

QuCu81 is the ductile one of the three aluminium bronzes: EN ISO 24373 S Cu 6327 (CuAl8Ni2Fe2Mn2) · material no. 2.0922. At 140 HB it is the softest — in return it offers 30 % elongation, three times that of QuCu80.That toughness is the reason to choose it: in dissimilar joints between CuAl bronze and steel, and in joints between differing materials generally, the seam is under permanent stress because both sides expand differently. Ductile weld metal absorbs that; strong weld metal cracks. Equally suited to cladding on steel and cast iron. Sea-water and cavitation resistant, good sliding properties.Recommended base materialsCu-Al multi-component bronzesDissimilar joints CuAl bronze to steelCladding on cast iron and steelBuild-ups on tool steel and cast alloysTypical applicationsBronze-to-steel dissimilar jointsCladding welds on steel and cast ironJoint welds on CuAl bronzesSliding surfaces, sea water and cavitation loadProperties and advantagesA 30 % elongation — the most ductile weld metal of the range140 HB, Re 270 MPa · Rm 530 MPaSea-water and cavitation resistantGood sliding propertiesRod form advantage: Constant wire feed for manual cladding and dissimilar joints.Rod form: Rod lengths 1000 mm and 333 mm, Ø 0,3 mm – 0,8 mm. Material analysis (wt.-%)Al 8.70 | Mn 1.80 | Fe 1.30 | Ni 2.30 | Cu balance

QuCu80 is the strongest of the three aluminium bronzes: EN ISO 24373 S Cu 6338 (CuMn13Al8Fe3Ni2) · AWS A5.7 ERCuMnNiAl · DIN 8555 MSG 31 GZ 200 · material no. 2.1367. The weld metal reaches 250 HB — Rm 650 MPa.Its home is mould inserts made of Ampco and Ampcoloy bronzes: these highly conductive tooling bronzes are used in die casting and plastic mould making because they dissipate heat quickly — and that is exactly where they crack and wear. Besides build-up and crack welding it suits cladding on cast iron and steel (e.g. drawing tools). Sea-water and cavitation resistant, with good sliding properties.Recommended base materialsCu-Al multi-component bronzesAmpco and Ampcoloy alloys (mould inserts)Cladding on cast iron and steelBuild-ups on grey iron, e.g. drawing toolsTypical applicationsAmpco bronze mould inserts — build-up, crack repair, joiningDrawing tools and build-ups on cast ironComponents under sliding loadSea water and cavitation-loaded componentsProperties and advantages250 HB — the strongest of quada's three aluminium bronzesWeld metal: Re 400 MPa · Rm 650 MPa · A 10 %Sea-water and cavitation resistantGood sliding properties — also for bearing surfacesBobbin form: K125, K250, K80, MA125, SH253 — wire weight 100 g–500 g, Ø 0,2 mm – 0,8 mm. Material analysis (wt.-%)Al 7.5 | Mn 13.0 | Fe 2.5 | Ni 2.5 | Cu balance

QuCu80 is the strongest of the three aluminium bronzes: EN ISO 24373 S Cu 6338 (CuMn13Al8Fe3Ni2) · AWS A5.7 ERCuMnNiAl · DIN 8555 MSG 31 GZ 200 · material no. 2.1367. The weld metal reaches 250 HB — Rm 650 MPa.Its home is mould inserts made of Ampco and Ampcoloy bronzes: these highly conductive tooling bronzes are used in die casting and plastic mould making because they dissipate heat quickly — and that is exactly where they crack and wear. Besides build-up and crack welding it suits cladding on cast iron and steel (e.g. drawing tools). Sea-water and cavitation resistant, with good sliding properties.Recommended base materialsCu-Al multi-component bronzesAmpco and Ampcoloy alloys (mould inserts)Cladding on cast iron and steelBuild-ups on grey iron, e.g. drawing toolsTypical applicationsAmpco bronze mould inserts — build-up, crack repair, joiningDrawing tools and build-ups on cast ironComponents under sliding loadSea water and cavitation-loaded componentsProperties and advantages250 HB — the strongest of quada's three aluminium bronzesWeld metal: Re 400 MPa · Rm 650 MPa · A 10 %Sea-water and cavitation resistantGood sliding properties — also for bearing surfacesRod form advantage: Constant wire feed when repairing cracked mould inserts.Rod form: Rod lengths 1000 mm and 333 mm, Ø 0,2 mm – 0,8 mm. Material analysis (wt.-%)Al 7.5 | Mn 13.0 | Fe 2.5 | Ni 2.5 | Cu balance

QuCu80 is the strongest of the three aluminium bronzes: EN ISO 24373 S Cu 6338 (CuMn13Al8Fe3Ni2) · AWS A5.7 ERCuMnNiAl · DIN 8555 MSG 31 GZ 200 · material no. 2.1367. The weld metal reaches 250 HB — Rm 650 MPa.Its home is mould inserts made of Ampco and Ampcoloy bronzes: these highly conductive tooling bronzes are used in die casting and plastic mould making because they dissipate heat quickly — and that is exactly where they crack and wear. Besides build-up and crack welding it suits cladding on cast iron and steel (e.g. drawing tools). Sea-water and cavitation resistant, with good sliding properties.Recommended base materialsCu-Al multi-component bronzesAmpco and Ampcoloy alloys (mould inserts)Cladding on cast iron and steelBuild-ups on grey iron, e.g. drawing toolsTypical applicationsAmpco bronze mould inserts — build-up, crack repair, joiningDrawing tools and build-ups on cast ironComponents under sliding loadSea water and cavitation-loaded componentsProperties and advantages250 HB — the strongest of quada's three aluminium bronzesWeld metal: Re 400 MPa · Rm 650 MPa · A 10 %Sea-water and cavitation resistantGood sliding properties — also for bearing surfacesTIG advantage: For larger build-up areas and cladding. Ø 1.0–1.6 mm.TIG form: for manual repair welding. Material analysis (wt.-%)Al 7.5 | Mn 13.0 | Fe 2.5 | Ni 2.5 | Cu balance

Qu819 is the build-up wire for cold-work tooling and plastic moulds: EN ISO 14700 S Fe 3 · 819BS · filler no. ~1.6773.It matches the nickel-alloyed tool steels 1.2767 (X45NiCrMo4), 1.2721, the hammer steel 1.2714 (55NiCrMoV7) and 35NCD16 / 45NiCrMo18 / 60NiCrMo11. According to the datasheet its hallmark is the combination of high dimensional accuracy with high hardness and strength (46–48 HRC as welded) — exactly what a cavity or die needs when it is machined back to size after welding and then has to hold up in service.Recommended base materials1.2767 (X45NiCrMo4)1.27211.2714 (55NiCrMoV7) — hammer steel35NCD16, 45NiCrMo18, 60NiCrMo11 and similarTypical applicationsPlastic moulds — cavities and parting edgesCold-work toolingDies, cutting tools and hammer steelsParts that are machined back to size after weldingProperties and advantages46–48 HRC as welded — hardness without post-weld heat treatmentHigh dimensional accuracy per the datasheetRm max. 912 MPa, A 12–19 %Machining behaviour typical for the materialBobbin form: K125, K250, K80, MA125, SH253 — wire weight 100 g–500 g, Ø 0,2 mm – 0,8 mm. Material analysis (wt.-%)C 0.35 | Si 0.30 | Mn 0.45 | Mo 0.25 | Cr 1.7 | Ni 3.7 | Fe balance

Qu819 is the build-up wire for cold-work tooling and plastic moulds: EN ISO 14700 S Fe 3 · 819BS · filler no. ~1.6773.It matches the nickel-alloyed tool steels 1.2767 (X45NiCrMo4), 1.2721, the hammer steel 1.2714 (55NiCrMoV7) and 35NCD16 / 45NiCrMo18 / 60NiCrMo11. According to the datasheet its hallmark is the combination of high dimensional accuracy with high hardness and strength (46–48 HRC as welded) — exactly what a cavity or die needs when it is machined back to size after welding and then has to hold up in service.Recommended base materials1.2767 (X45NiCrMo4)1.27211.2714 (55NiCrMoV7) — hammer steel35NCD16, 45NiCrMo18, 60NiCrMo11 and similarTypical applicationsPlastic moulds — cavities and parting edgesCold-work toolingDies, cutting tools and hammer steelsParts that are machined back to size after weldingProperties and advantages46–48 HRC as welded — hardness without post-weld heat treatmentHigh dimensional accuracy per the datasheetRm max. 912 MPa, A 12–19 %Machining behaviour typical for the materialRod form advantage: Constant wire feed when building up parting edges and die cutting edges.Rod form: Rod lengths 1000 mm and 333 mm, Ø 0,2 mm – 0,8 mm. Material analysis (wt.-%)C 0.35 | Si 0.30 | Mn 0.45 | Mo 0.25 | Cr 1.7 | Ni 3.7 | Fe balance

Qu17-4PH is a precipitation-hardening, corrosion-resistant laser welding wire of the alloy 17-4PH (material 1.4542 / X5CrNiCuNb16-4, AISI 630). This martensitic chromium-nickel-copper steel combines high strength with good corrosion resistance — ideal for repair and build-up welding in tool and mould making as well as on pump, valve and shaft components.Recommended base materials1.4542 — X5CrNiCuNb16-4 / 17-4PH / AISI 630 (primary material)1.4540 — X4CrNiCuNb16-4 (identical-type variant)1.4548 — X5CrNiCuNb17-4 (identical-type variant)Typical applicationsTool and mould making — repair and build-up weldingPump, valve and fitting componentsShafts, axles and highly stressed machine partsOffshore, chemical and food technologyAerospace componentsProperties and advantagesPrecipitation-hardening (Cu/Nb) — high strength through ageing (heat-treatment conditions H900/H1025/H1150)Achievable hardness 37–40 HRC per manufacturer datasheetGood corrosion resistance at high mechanical load capacityIdentical-type weld metal for durable, low-crack jointsShielding gas: argon 4.6 or better; adapt heat control to the aged condition of the componentBobbin form: K125, K250, K80, MA125, SH253 — wire weight 100 g–500 g, Ø 0,3 mm – 0,6 mm. Material analysis (wt.-%)Cr 15.0–17.5 | Ni 3.0–5.0 | Cu 3.0–5.0 | Nb 0.15–0.45 | Mn ≤1.0 | Si ≤1.0 | C ≤0.07 | Fe balance