Alloy 61 – properties, applications and technical data
Alloy 61 (Nickel Filler Metal 61) is a nickel-based filler metal developed for welding Nickel 200 and Nickel 201. The alloy contains titanium which reacts with carbon and keeps the free carbon content low, making the filler metal particularly suitable for welding Nickel 201.
Alloy 61 weld metal has good corrosion resistance and shows particularly good performance in alkaline environments. The material is also used in dissimilar welding where pure nickel alloys need to be joined to other materials.
Properties of Alloy 61
Alloy 61 is a nickel filler material developed to create stable welds in commercially pure nickel materials and in combination with several other alloys.
The addition of titanium binds carbon in the weld metal and prevents the formation of free carbon impurities, which is particularly important when welding Nickel 201 where low carbon content is required to maintain good corrosion resistance.
- Type: nickel-based filler material for welding
- Alloy: Ni-Ti
- Structure: nickel-based weld metal
- Designations: Alloy 61, Nickel Filler Metal 61, ERNi-1, AWS A5.14 ERNi-1
- Typical composition: Ni ~93%, Ti ~2–3%, Mn ~1%, Fe ~1%
Advantages
- Developed for welding Nickel 200 and Nickel 201
- Low level of free carbon in the weld metal
- Good corrosion resistance in alkaline environments
- Suitable for dissimilar welding between nickel and other alloys
- Stable weld joints in pure nickel alloys
Limitations
- Not intended for applications requiring high temperature resistance
- The weld metal is not intended for age hardening
- The strength of the weld joint may be lower than in some high-alloy base materials
Common product forms for Alloy 61
- Welding wire
- TIG wire
- MIG wire
- Welding electrodes
Typical applications for Alloy 61
- Welding Nickel 200
- Welding Nickel 201
- Dissimilar welding between nickel and steel
- Chemical process equipment
- Industrial applications where pure nickel alloys are used
Compatible base material
Alloy 61 is primarily used for welding commercially pure nickel alloys but can also be used for dissimilar welding between nickel and several other alloys.
- Nickel 200
- Nickel 201
- Stainless steel
- Carbon steel
- Inconel® alloys
- Incoloy® alloys
- Copper-nickel alloys
- Monel® alloys
Corrosion resistance
Alloy 61 weld metal has good corrosion resistance in many industrial environments. The material exhibits particularly good resistance to alkaline solutions and is therefore often used in the chemical industry and process equipment.
The low content of free carbon contributes to stable welded joints in Nickel 201 where high purity and corrosion resistance are important.
Environments where Alloy 61 works well
- Alkaline environments
- Chemical process environments
- Industrial systems with pure nickel alloys
Environments to avoid
- Applications requiring very high temperature resistance
- Environments where more highly alloyed welding materials are required
Technical data
| Stretch limit (0.2%) |
~200 MPa |
| Tensile strength |
~380 MPa |
| Extension |
~35% |
| Density |
~8.9 g/cm³ |
| Melting interval |
~1430–1450 °C |
Alloy 61 is a proven filler material for welding pure nickel alloys and for dissimilar welds where good corrosion resistance and metallurgical compatibility are important.
Contact us for price, availability and technical advice.
Supplier of Alloy 61 with certified quality
HARALD PIHL is one of Europe's largest suppliers of special alloys and nickel-based materials, including welding materials for demanding industrial applications.
With over 100 years of experience in the metal industry, we deliver materials with full traceability and certification according to EN 10204 3.1 / 3.2 as well as relevant ASTM, AMS and ISO standards.
Cutting, testing and quality assurance are carried out in-house to ensure the right tolerances and fast global delivery to technically demanding projects.
- Europe's largest stock of nickel and titanium alloys
- Special alloys from stock
- ASTM / AMS / ISO standards
- Top quality for safety-critical applications
- Fast global delivery
- Full material certification (EN 10204 3.1 / 3.2)
- Over 100 years in the metal industry
- Nickel and titanium experts
