Qu17-4PH Bobbin – Laser Welding Wire 1.4542 / 17-4PH (X5CrNiCuNb16-4 / AISI 630)

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 componentRod form advantage: Ideal for manual build-up welding with constant wire feed — also for repair sites that are hard to access in tools and moulds.Rod form: Rod lengths 1000 mm and 333 mm, Ø 0,2 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

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 componentTIG advantage: For manual repair welding on moulds, tools and functional surfaces with precise heat input.TIG form: for manual repair welding. 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

QuFe17 is a wire for joint welding on high-strength, quenched and tempered fine-grain structural steels with a minimum yield strength of 890 MPa: EN ISO 16834-A G/W 89 4 M21 Mn4Ni2CrMo · AWS A5.28 ER110S-G.It has no material number — its analysis is defined solely by the standards. The weld metal reaches Re 880 MPa and Rm 940 MPa at 16 % elongation: it matches the strength of the base material without turning brittle. Where the base material is one class lower (S690QL, 690 MPa), QuFe10NiMo is the wire to use.Recommended base materialsS890Q and comparable high-strength fine-grain steelsXABO 90Weldox 900 EOS 1002, ASTM A709 Gr. 100 Type B, E, F, H, QN-A-TRA 55-70Typical applicationsJoint welds on high-strength quenched and tempered fine-grain steelsRepairs on components from 890 MPa minimum yield strengthCrane and vehicle construction, lifting gear, pressure vesselsRepairs on Weldox and XABO structuresProperties and advantagesRe 880 MPa · Rm 940 MPa · A 16 % — matches the strength of the base materialJoint welding rather than build-up — designed for the seam, not for a wear layerPost-weld treatment as typical for the base materialAlloyed with Ni 2.2 % and Mo 0.5 % for toughness at high strengthBobbin form: K125, K250, K80, MA125, SH253 — wire weight 100 g–500 g, Ø 0,3 mm – 0,8 mm. Material analysis (wt.-%)C 0.10 | Si 0.7 | Mn 1.7 | Mo 0.50 | Cr 0.30 | Ni 2.20 | Fe balance

QuFe17 is a wire for joint welding on high-strength, quenched and tempered fine-grain structural steels with a minimum yield strength of 890 MPa: EN ISO 16834-A G/W 89 4 M21 Mn4Ni2CrMo · AWS A5.28 ER110S-G.It has no material number — its analysis is defined solely by the standards. The weld metal reaches Re 880 MPa and Rm 940 MPa at 16 % elongation: it matches the strength of the base material without turning brittle. Where the base material is one class lower (S690QL, 690 MPa), QuFe10NiMo is the wire to use.Recommended base materialsS890Q and comparable high-strength fine-grain steelsXABO 90Weldox 900 EOS 1002, ASTM A709 Gr. 100 Type B, E, F, H, QN-A-TRA 55-70Typical applicationsJoint welds on high-strength quenched and tempered fine-grain steelsRepairs on components from 890 MPa minimum yield strengthCrane and vehicle construction, lifting gear, pressure vesselsRepairs on Weldox and XABO structuresProperties and advantagesRe 880 MPa · Rm 940 MPa · A 16 % — matches the strength of the base materialJoint welding rather than build-up — designed for the seam, not for a wear layerPost-weld treatment as typical for the base materialAlloyed with Ni 2.2 % and Mo 0.5 % for toughness at high strengthRod form advantage: Constant wire feed for manual joint welding on structural components.Rod form: Rod lengths 1000 mm and 333 mm, Ø 0,3 mm – 0,8 mm. Material analysis (wt.-%)C 0.10 | Si 0.7 | Mn 1.7 | Mo 0.50 | Cr 0.30 | Ni 2.20 | Fe balance

QuNi22 is a corrosion-resistant laser welding wire of the nickel-base superalloy Hastelloy C22 (material 2.4602 / Alloy C-22, UNS N06022). This austenitic Ni-Cr-Mo alloy resists pitting and crevice corrosion in both oxidising and reducing media alike — ideal for highly corrosion-resistant build-up (cladding) welds on low-alloy steels and for joining welds of similar base materials.Recommended base materials2.4602 — Hastelloy C22 / Alloy C-22 / UNS N06022 (primary material)Low-alloy steels — as build-up welding / claddingSimilar and related Ni-Cr-Mo base materialsTypical applicationsHighly corrosion-resistant build-up welding (cladding) on low-alloy steelsJoining welds of similar and related base materialsChemical process industry — acetic acid, contaminated sulfuric acid and other aggressive mediaFlue-gas desulfurisation (FGD), plant and vessel constructionPharmaceutical and environmental engineeringProperties and advantagesOutstanding resistance to pitting and crevice corrosionResistant in oxidising and reducing media alikeHigh resistance to stress corrosion crackingGood weldability with low heat input; shielding gas argon 4.6 or betterBobbin form: K125, K250, K80, MA125, SH253 — wire weight 100 g–500 g, Ø 0,2 mm – 0,8 mm. Material analysis (wt.-%)Ni balance | Cr 21.0 | Mo 13.0 | Fe 3.0 | W 3.0 | Co ≤2.5 | V ≤0.2 | Cu ≤0.2 | Mn ≤0.5 | Si ≤0.1 | C ≤0.01

QuNi24 is a corrosion- and heat-resistant laser welding wire of the nickel-base superalloy Inconel 625 (base material 2.4856 / Alloy 625, UNS N06625; filler metal 2.4831 / ERNiCrMo-3 / EN ISO 18274 S Ni 6625). This NiCrMo alloy combines high resistance to pitting and crevice corrosion with elevated-temperature strength up to around 1100 °C and cryogenic toughness down to −196 °C — ideal for the chemical process industry, offshore, exhaust systems and aerospace.Recommended base materials2.4856 — Inconel 625 / Alloy 625 / NiCr22Mo9Nb (primary material)2.4858 — Incoloy 825 (related NiFeCr alloy)1.4529, 1.4539, 1.4876 — high-alloy special stainless steelsJoining ferritic↔austenitic steels, build-up welding on steelTypical applicationsChemical process industry — acid- and media-resistant componentsOffshore and seawater engineeringExhaust and flue-gas systems, hot components up to ~1100 °CAerospaceJoining ferritic↔austenitic steels, build-up welding on steelProperties and advantagesOutstanding resistance to pitting and crevice corrosionHeat-resistant up to ~1100 °C and tough down to −196 °C; favourable creep valuesStress- and hot-crack safety, high fatigue strength (Mo/Nb in NiCr matrix)All-weld metal: Re 500 N/mm², Rm 760 N/mm², A 35 %; filler metal ERNiCrMo-3Good weldability with low heat input; shielding gas argon 4.6 or betterBobbin form: K125, K250, K80, MA125, SH253 — wire weight 100 g–500 g, Ø 0,2 mm – 0,8 mm. Material analysis (wt.-%)Ni balance | Cr 22.0 | Mo 9.0 | Nb 3.5 | Fe 1.0 | Si 0.25 | Mn 0.20 | C ≤0.03

QuNi25 is a nickel-base wire for highly corrosion-resistant steels: DIN EN ISO 17274 S Ni 8065 · AWS A5.14 ERNiFeCr-1 · material no. ~2.4858 (Alloy 825).The weld metal is fully austenitic and therefore highly resistant to stress corrosion cracking and pitting in chloride-bearing media — the two failure modes that defeat ordinary stainless steels in chemical plants. It is designed for exposure to sulphuric and phosphoric acid and is corrosion-resistant in sea water. Besides matching joints it suits dissimilar welds.Recommended base materials2.4858 (Alloy 825), 2.46191.4539 (904L), 1.45291.4500, 1.4563Dissimilar joints between these materialsTypical applicationsChemical plant construction — sulphuric and phosphoric acidComponents in chloride-bearing media (pitting risk)Sea-water applicationsDissimilar joints between nickel-base alloys and stainless steelProperties and advantagesFully austenitic — resistant to stress corrosion crackingPitting-resistant in chloride-bearing mediaResistant to sulphuric and phosphoric acid, sea-water proofWeld metal: Rm ~550 MPa · A ~30 %Bobbin form: K125, K250, K80, MA125, SH253 — wire weight 100 g–500 g, Ø 0,2 mm – 0,6 mm. Material analysis (wt.-%)C < 0.02 | Si < 0.5 | Mn 0.9 | Cr 21.5 | Ni 42.0 | Mo 3.0 | Cu 2.0 | Ti 1.0 | Fe balance