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UTP Maintenance joining and cladding alloys are engineered for high-strength joining, low-dilution cladding, corrosion resistance, buffer layers, and dissimilar steel welding. This category supports maintenance teams working with stainless steels, high-alloy steels, tool steels, corrosion-resistant systems, and transition welds between dissimilar materials.
Dissimilar Steel Joining Alloys
Dissimilar Steel Joining Alloys
For joining carbon steel to stainless, tool steel, or unknown steels, while controlling cracking and dilution.
UTP 65 - Crack-Resistant Austenitic-Ferritic Stick Electrode
UTP 65 - Crack-Resistant Austenitic-Ferritic Stick Electrode
Description: UTP 65 is a rutile-coated austenitic-ferritic stick electrode designed for the highest requirements in joining and surfacing, producing an austenitic-ferritic weld metal with exceptional crack resistance. It excels in welding difficult-to-weld steels, including hard manganese steels, tool steels, spring steels, and high-speed steels, as well as dissimilar metal combinations. The electrode delivers outstanding welding characteristics, with a stable arc, spatter-free transfer, finely rippled seams with a homogeneous structure, easy slag removal, and self-lifting on vertical surfaces, ensuring good performance in all positions, including awkward ones.
Classifications: EN ISO 1600 E 29 9 R 3 2; AWS A5.4 E312-17.
Format: Covered electrode (stick electrode, e.g., 2.5-5.0 mm x 300-350 mm) - compliant with Canadian CSA standards.
Benefits: Offers extreme crack resistance for challenging welds, combined with superior corrosion and abrasion resistance, high tensile strength, and work-hardening properties for durable, long-lasting repairs; provides stainless and creep-resistant performance with minimal spatter and effortless slag removal to boost productivity and seam quality.
Applications: Perfect for repairing and maintaining machine and drive components, as well as tool repairs in mining operations; serves as an effective cushion layer on difficult materials to prevent cracking under stress.
Hardness: 240 HB (as-welded)
UTP 65 D - High-Performance Crack-Resistant Stick Electrode
UTP 65 D - High-Performance Crack-Resistant Stick Electrode
Description: Rutile-coated austenitic-ferritic special stick electrode designed for the highest requirements in joining and surfacing, producing an austenitic-ferritic weld metal with exceptional crack resistance. It excels in welding difficult-to-weld steels, including hard manganese steels, tool steels, spring steels, and high-speed steels, as well as dissimilar metal combinations. The electrode delivers outstanding welding characteristics, with a stable arc, spatter-free transfer, finely rippled seams with a homogeneous structure, easy slag removal, and self-lifting on vertical surfaces, ensuring good performance in all positions, including awkward ones. Available Formats: Stick electrode
Classification: EN ISO 1600 E 29 9 R 3 2; AWS A5.4 E312-17.
Format: Covered electrode (stick electrode, e.g., 2.5-5.0 mm x 300-350 mm) - compliant with Canadian CSA standards.
Benefits: Offers extreme crack resistance for challenging welds, combined with superior corrosion and abrasion resistance, high tensile strength, and work-hardening properties for durable, long-lasting repairs; provides stainless and creep-resistant performance with minimal spatter for effortless slag removal, boosting productivity and seam quality.
Applications: Perfect for repairing and maintaining machine and drive components, as well as tool repairs in mining operations; serves as an effective cushion layer on difficult materials to prevent cracking under stress.
Hardness: 260 HB (as-welded)
Technical Data Sheet - UTP 65 D Factsheet (PDF)
UTP A 63 - Crack-Resistant TIG Rod and Solid Wire
UTP A 63 - Crack-Resistant TIG Rod and Solid Wire
Description: A high-performance TIG rod designed for crack-resistant joining and surfacing of high-strength ferritic/austenitic steels, hard manganese steels, and cold-tough steels. It creates a durable weld metal that's scale-resistant up to 850°C and cold-tough down to -110°C, with excellent work-hardening capabilities—ideal as a cushion layer under hard alloys or for dissimilar metal joints. Available Formats: TIG rod (product no. UTP A 63), Solid wire (product no. UTP A 63).
Classification: EN ISO 14343-A ER 29 9; AWS A5.9 ER312.
Format: TIG rod: UTP A 65, ER 312 (AWS); Solid wire: UTP A 65, ER 312 (AWS) - compliant with Canadian CSA standards.
Benefits: Superior crack and scale resistance, low-temperature toughness, for robust performance; work-hardens under impact for added durability.
Applications: Suited for joining and surfacing difficult-to-weld steels in mining, including high-strength frames, pressure-bearing components, and structural machinery repair in heavy equipment.
Hardness: Approx. 240 HB.
UTP AF 068 HH - Hot Cracking-Resistant Flux-Cored Wire
UTP AF 068 HH - Hot Cracking-Resistant Flux-Cored Wire
Description: A nickel-base flux-cored wire for gas-shielded welding, producing a tough weld metal for joining and surfacing nickel alloys, heterogeneous joins with carbon and CrNi steels, and claddings on carbon steels. It offers excellent hot-cracking resistance and performs up to 900°C, with regular fine-drop transfer and smooth transitions.
Classification: EN ISO 12153 T Ni 6082; AWS A5.34 E NiCr3 T0-4.
Format: Flux-cored wire (e.g., 1.2 mm) - compliant with Canadian CSA standards.
Benefits: Delivers outstanding hot-cracking and scale resistance without embrittlement; a wide parameter range and a stable arc ensure high-quality welds across a wide range of thicknesses.
Applications: Recommended for high-temperature mining components, such as those in the 600/800 series of alloys; suitable for dissimilar joins and claddings in corrosive, high-heat environments, such as processing equipment.
Hardness: Not specified.
Technical Data Sheet | Safety Data Sheet - Contact us for more details.
Additional Suggestions: UTP 68 (stabilized CrNi, general), UTP 68 H (high-temp CrNi), UTP 759 Kb (corrosion-resistant NiCrMo), UTP 776 Kb (corrosion-resistant NiCrMo), UTP 4225 (austenitic weld metal), UTP 6170 Co (high-temp CoCrMoNi), UTP 6222 Mo (corrosion-resistant NiCrMo) - contact us for details.
Stainless Steel Joining & Buffer Alloys
Stainless Steel Joining & Buffer Alloys
For joining and overlay on stainless steels requiring toughness, corrosion resistance, and heat stability.
UTP 63 - Austenitic CrNiMn Stick Electrode
UTP 63 - Austenitic CrNiMn Stick Electrode
Description: This is a rutile-coated, fully austenitic CrNiMn stick electrode designed for versatile joining and surfacing. It provides a stable arc, produces a finely rippled bead, and allows for easy slag removal, ideal for dissimilar joins and overlays.
Classification: EN ISO 3581-A E 18 8 Mn R 3 2; AWS A5.4 E307-17 (mod.).
Format: Covered electrode (stick electrode, e.g., 2.5-5.0 mm x 300-350 mm) - compliant with Canadian CSA standards.
Benefits: Excellent resistance to scaling, rust, and cracks; work-hardening increases durability for high-wear applications; reliable for combining diverse steels.
Applications: Joining non-alloy to stainless steels in mining equipment; buffer layers for hardfacing; repair of impact-prone parts like rails, points, crushers, and excavators; crack-proof buffer layers under hard alloys.
Hardness: Approx. 200 HB (untreated); approx. 350 HB (work-hardened).
Additional Suggestions: UTP A 68 LC (low-dilution wire), UTP A 6824 LC - contact us for details.
Corrosion-Resistant Joining / Cladding Alloys
Corrosion-Resistant Joining / Cladding Alloys
For chemical environments, acids, chlorides, seawater, and process corrosion resistance.
UTP 759 Kb - Corrosion-Resistant NiCrMo Stick Electrode
UTP 759 Kb - Corrosion-Resistant NiCrMo Stick Electrode
Description: A basic-coated NiCrMo stick electrode for joint welding and cladding in highly corrosive environments. It features a stable arc and easy slag removal, preventing intermetallic phase precipitation for optimal integrity.
Classification: EN ISO 14172 E Ni 6059 (NiCr23Mo16); AWS A5.11 E NiCrMo-13; Material-No. 2.4609.
Format: Covered electrode (stick electrode, e.g., 2.5-4.0 mm x 300-350 mm) - compliant with Canadian CSA standards. GTAW UTP A 759, GMAW UTP A 759, FCAW UTP AF 759.
Benefits: Exceptional resistance to pitting, crevice corrosion, and contaminated acids like acetic, sulfuric, and phosphoric; ensures long-term durability in aggressive media without heat-induced weaknesses.
Applications: Ideal for mining components in environmental and chemical processing with corrosive media; joint welding of alloys like 2.4605 and cladding on low-alloy steels.
Hardness: Not specified.
UTP 776 Kb - Corrosion-Resistant NiCrMo Stick Electrode
UTP 776 Kb - Corrosion-Resistant NiCrMo Stick Electrode
Description: Covered electrode for joint welding and surfacing on matching base materials with low heat input to avoid intermetallic precipitation, offering a stable arc and easy slag removal for precise applications.
Classification: EN ISO 14172 E Ni 6276 (NiCr15Mo16Fe6W4); AWS A5.11 E NiCrMo-4; Material-No. 2.4887.
Format: Covered electrode (stick electrode, e.g., 2.5-4.0 mm x 300-350 mm) - compliant with Canadian CSA standards. GTAW UTP A 776, GMAW UTP A 776.
Benefits: Superior resistance to contaminated mineral acids, chlorine media, chlorides, and strong oxidizers such as ferric/cupric chlorides and wet chlorine gas; ideal for maintaining integrity in severe corrosive environments.
Applications: Suited for mining chemical processes with highly corrosive media; surfacing press tools and punches at high temperatures.
Hardness: Not specified.
UTP 4225 - Austenitic Weld Metal Stick Electrode
UTP 4225 - Austenitic Weld Metal Stick Electrode
Description: This product is a covered electrode designed for joining and surfacing similar alloys. It produces a fully austenitic weld metal that is resistant to chloride-ion-induced pitting and stress corrosion. The electrode features a stable arc, produces finely rippled seams, and facilitates easy slag removal.
Classification: EN ISO 14172 E Ni 8165 (NiCr25Fe30Mo); Material-No. 2.4652.
Format: Covered electrode (stick electrode, e.g., 2.5-4.0 mm x 300-350 mm) - compliant with Canadian CSA standards.
Benefits: High resistance to reducing and oxidizing acids. The combination of nickel, molybdenum, and copper ensures reliable performance in corrosive chemical environments.
Applications: Essential for high-quality construction of tanks and apparatus in the mining and chemical industries, particularly when handling sulfuric and phosphoric acids and welding dissimilar materials.
Hardness: Not specified.
Technical Data Sheet | Safety Data Sheet - Contact us for more details.
UTP 6170 Co - High-Temperature CoCrMoNi Stick Electrode
UTP 6170 Co - High-Temperature CoCrMoNi Stick Electrode
Description: A specialized basic-coated CoCrMoNi stick electrode designed to apply high-temperature resistant hardfacings on hot-working steels subjected to impact, compression, and abrasion, producing a weld metal that retains superior hardness and toughness in extreme heat. It provides excellent resistance to thermal fatigue, scaling, and corrosive gases in oxidizing or carburizing atmospheres up to 1000°C, making it essential for protecting critical components in power and chemical industries.
Classification: EN ISO 14700 E Co2; DIN 8555 E 20-UM-40-CSTZ.
Format: Covered electrode (stick electrode, e.g., 2.5-4.0 mm x 300-350 mm) - compliant with Canadian CSA standards. GTAW UTP A 6170 Co, GMAW UTP A 6170 Co.
Benefits: Excellent hot-cracking and scale resistance up to 1000°C; maintains high hardness under thermal stress; reliable for combined wear and heat exposure in harsh conditions.
Applications: Surfacing heat-resistant Ni alloys in power plants, hardfacing gas turbine components, and protecting ethylene production equipment in mining and industrial settings.
Hardness: Not specified.
UTP 6222 Mo - Corrosion-Resistant NiCrMo Stick Electrode
UTP 6222 Mo - Corrosion-Resistant NiCrMo Stick Electrode
Description: Crafted for precision in challenging conditions, this basic-coated NiCrMo stick electrode excels in joining, repairing, and surfacing nickel alloys, austenitic steels, low-temperature nickel steels, and austenitic-ferritic joints or claddings. Its high nickel content ensures outstanding pitting and stress-corrosion resistance, with stable arcs, easy slag removal, and high creep strength, making it ideal for scale-resistant performance up to 1100°C in low-sulphur atmospheres and for maintaining ductility after prolonged exposure at 600-800°C.
Classification: EN ISO 14172 E Ni 6625 (NiCr22Mo9Nb); AWS A5.11 E NiCrMo-3; Material-No. 2.4621.
Format: Covered electrode (stick electrode, e.g., 2.5-4.0 mm x 300-350 mm) - compliant with Canadian CSA standards. GTAW UTP A 6222 Mo, GMAW UTP A 6222 Mo, FCAW UTP AF 6222 Mo PW.
Benefits: Impressive mechanical strength with yield (Rp0.2 >450 MPa), tensile (Rm >760 MPa), elongation (A >30%), and impact (KV >75 J); superior resistance to pitting, stress corrosion, and hot cracking; reliable in oxidizing and carburizing atmospheres with minimal ductility loss.
Applications: Repairing heat-resistant Ni alloys in chemical equipment, cladding low-alloy steels in petrochemical plants, cryogenic Ni-steels in processing plants, and austenitic-ferritic combinations in mining machinery.
Hardness: Not specified.
Additional Suggestions: UTP 80 M (seawater focus), UTP 6225 Al (oven-specific), UTP 7015 (reactor focus), UTP 7015 Mo (cryogenic), UTP 6824 LC (general stainless), UTP 7008 (hot trimming), UTP 7010 (nuclear), UTP CELST 701 (chemical fittings), UTP CELST 706 (valves), UTP CELST 712 (pumps), UTP CELST 721 (gas fittings), UTP HydroCav (cavitation for hydro).
Stainless Steel Joining & Buffer Alloys
Stainless Steel Joining & Buffer Alloys
UTP 63 - Austenitic CrNiMn Stick Electrode
UTP 63 - Austenitic CrNiMn Stick Electrode
Description: This is a rutile-coated, fully austenitic CrNiMn stick electrode designed for versatile joining and surfacing. It provides a stable arc, produces a finely rippled bead, and allows for easy slag removal, ideal for dissimilar joins and overlays.
Classification: EN ISO 3581-A E 18 8 Mn R 3 2; AWS A5.4 E307-17 (mod.).
Format: Covered electrode (stick electrode, e.g., 2.5-5.0 mm x 300-350 mm) - compliant with Canadian CSA standards.
Benefits: Excellent resistance to scaling, rust, and cracks; work-hardening increases durability for high-wear applications; reliable for combining diverse steels.
Applications: Joining non-alloy to stainless steels in mining equipment; buffer layers for hardfacing; repair of impact-prone parts like rails, points, crushers, and excavators; crack-proof buffer layers under hard alloys.
Hardness: Approx. 200 HB (untreated); approx. 350 HB (work-hardened).
Additional Suggestions: UTP A 68 LC (low-dilution wire), UTP A 6824 LC - contact us for details.
Low-Dilution MIG/MAG Cladding Wires
Low-Dilution MIG/MAG Cladding Wires
For controlled chemistry overlays on mild steel, carbon steel, and mixed materials.
UTP A 68 MoLC - Low-Carbon CrNiMo TIG Rod and Solid Wire
UTP A 68 MoLC - Low-Carbon CrNiMo TIG Rod and Solid Wire
Description: A solid wire for low-dilution MIG/MAG cladding of low-carbon austenitic CrNiMo steels in petrochemical and acid-exposed environments. It provides a stable arc, minimal spatter, and porosity-free welds up to +350°C.
Classification: EN ISO 14343-A G 19 12 3 L Si; AWS A5.9 ER316 L (Si); Material-No. 1.4430.
Format: TIG rod (e.g., 1.6-3.2 mm); Solid wire (e.g., 0.8-1.6 mm) - compliant with Canadian CSA standards.
Benefits: Exceptional resistance to pitting and crevice corrosion; low carbon prevents sensitization, while low heat input minimizes dilution for high-integrity claddings.
Applications: Cladding chemical vessels and joining low-carbon CrNiMo steels in mining and petrochemical processing; surfacing in acidic conditions.
Hardness: Not specified.
Technical Data Sheet | Safety Data Sheet - Contact us for more details.
UTP A 6824 LC - Low-Carbon CrNi TIG Rod and Solid Wire
UTP A 6824 LC - Low-Carbon CrNi TIG Rod and Solid Wire
Description: A solid wire for low-dilution MIG/MAG cladding with high corrosion resistance for dissimilar stainless/non-stainless joins and surfacing. It ensures stable welding and low carbon content for integrity in mixed-material applications.
Classification: EN ISO 14343-A G 23 12 L Si; AWS A5.9 ER309 L (Si); Material-No. 1.4332.
Format: TIG rod (e.g., 1.6-3.2 mm); Solid wire (e.g., 0.8-1.6 mm) - compliant with Canadian CSA standards.
Benefits: Excellent corrosion protection in dissimilar metal setups, minimal dilution, and a stable arc for precise, high-quality cladding.
Applications: Cladding un/low-alloy steels in mining vessels; dissimilar stainless/non-stainless joins and surfacing in chemical processing equipment.
Hardness: Not specified.
Technical Data Sheet | Safety Data Sheet - Contact us for more details.
Reference Source
This page is based on the UTP Maintenance 2024 Brochure from voestalpine Böhler Welding, focusing on filler metals for repair, wear protection, and corrosion protection. Download the full brochure PDF.
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