QuNi25 Rod – Laser Welding Wire Alloy 825 / 2.4858 (NiFeCr, ERNiFeCr-1)

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

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 betterRod form advantage: Ideal for manual build-up and repair welding with constant wire feed — also for hard-to-reach areas in chemical and plant components.Rod form: Rod lengths 1000 mm and 333 mm, 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

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

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 betterTIG advantage: For manual repair and joining welds on chemical, offshore and exhaust components with precise heat input.TIG form: for manual repair welding. 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

Nickel based alloy for application to similar nickel based steels of Inc 625 or similar. This alloy is used in branches of the air and space as well as the chemical industry. The weld is distinguished by its long term corrosion resistance, stability against tension cracks and heat cracks. It has a high tensile strength and tenacity even at temperatures up to 1100°C and cold tenacity down to 196°C. Due to the alloy elements Mo and Nb in the NiCr matrix an unusually high fatigue resistance can be achieved. Non convertible austenitic structure.Packaging: 4 x 5 kg bottlesMaterial analysis C: 0,03 | Fe: 1,0 | Si: 0,4 | Cr: 21,5 | Mn: 0,4 | Mo: 8,8 | Nb: 3,5 | Ni: Rest

Qu4519 is a super-austenitic stainless steel laser welding wire for highly corrosion-resistant applications. The material 1.4539 (904L) is used wherever components must withstand aggressive media such as acids, chlorides or organic solvents — ideal for chemical, pharmaceutical, food and offshore industries.Recommended base materials1.4539 — X1NiCrMoCu25-20-5 / AISI 904L (primary material)1.4500, 1.4505, 1.4506 — austenitic CrNiMoCu alloys1.4536, 1.4585 — acid-resistant special gradesTypical applicationsChemical and pharmaceutical plantsFood and beverage industryOffshore constructionsAcid-resistant vessels and pipingRepair welding on similar stainless steelsAdvantages of 1.4539 / 904LCorrosion-resistant in non-oxidising media (up to 90 % H₂SO₄ and H₃PO₄)Pitting-resistant up to 1000 °C in airPermissible operating temperature −10 °C to +350 °CSuitable for aggressive acids, chlorides and organic solventsRod form: Rod lengths 1000 mm and 333 mm, Ø 0,2 mm – 0,6 mm. Material analysisC: 0.02 | Si: 0.7 | Mn: 2.0 | P: 0.025 | S: 0.02 | Cr: 20.0 | Mo: 5.0 | Ni: 25.0 | Cu: 1.5 | Fe: balance

Qu4519 is a super-austenitic stainless steel laser welding wire for highly corrosion-resistant applications. The material 1.4539 (904L) is used wherever components must withstand aggressive media such as acids, chlorides or organic solvents — ideal for chemical, pharmaceutical, food and offshore industries.Recommended base materials1.4539 — X1NiCrMoCu25-20-5 / AISI 904L (primary material)1.4500, 1.4505, 1.4506 — austenitic CrNiMoCu alloys1.4536, 1.4585 — acid-resistant special gradesTypical applicationsChemical and pharmaceutical plantsFood and beverage industryOffshore constructionsAcid-resistant vessels and pipingRepair welding on similar stainless steelsAdvantages of 1.4539 / 904LCorrosion-resistant in non-oxidising media (up to 90 % H₂SO₄ and H₃PO₄)Pitting-resistant up to 1000 °C in airPermissible operating temperature −10 °C to +350 °CSuitable for aggressive acids, chlorides and organic solventsBobbin form: K125, K250, K80, MA125, SH253 — wire weight 100 g–500 g, Ø 0,2 mm – 0,6 mm. Material analysisC: 0.02 | Si: 0.7 | Mn: 2.0 | P: 0.025 | S: 0.02 | Cr: 20.0 | Mo: 5.0 | Ni: 25.0 | Cu: 1.5 | Fe: balance