ER80S-Ni1 MIG Wire
COREWELD 80SNi1 ER80S-Ni1 MIG wire from Metracore Alloys is a copper-coated, nickel-bearing low-alloy steel filler metal classified under AWS A5.28. The nominal 1% nickel addition supports weld-metal toughness at sub-zero service temperatures, which matters in pressure vessel and pipeline fabrication. Fabricators apply this wire to carbon and low-alloy steels where the procedure requires 80 ksi tensile class deposits. Structural steelwork, storage tanks, and general industrial welding draw on the same classification.
COREWELD 80SNi1 Product Datasheet
The COREWELD 80SNi1 datasheet records what procurement and welding engineers need before procedure qualification: classification data, chemistry limits, deposited weld-metal properties, available wire diameters and packaging details.
Understanding ER80S-Ni1 MIG Wire
The ER80S-Ni1 designation splits into four parts. ER marks an electrode or rod, 80 indicates a minimum tensile strength of 80 ksi (550 MPa), S confirms a solid wire and Ni1 identifies the nickel content. AWS A5.28 specifies the nickel range at 0.80 to 1.10%. In gas metal arc welding, the wire feeds continuously through the nozzle under an external shielding gas. Nickel refines the weld-metal microstructure and increases notch toughness at low temperature, with the classification specifying 27 J at -45°C. Base material, service temperature, joint design and required mechanical properties determine the final filler metal choice.
Technical Specifications of COREWELD 80SNi1
Procurement teams utilise the table below when matching the wire to a welding procedure specification. Verify every product-specific entry against the official COREWELD 80SNi1 datasheet.
| Specification | Details |
| Brand | COREWELD 80SNi1 |
| Product Name | ER80S-Ni1 MIG Wire |
| AWS Classification | ER80S-Ni1 |
| Material Type | Nickel-Alloyed Low-Alloy Steel Filler Metal |
| Welding Process | MIG / GMAW |
| Applicable Standard | AWS A5.28 / ASME SFA-5.28, subject to certification |
| UNS Number | K11260 |
| Shielding Gas | 75% Ar / 25% CO2 or 100% CO2 |
| Available Wire Diameters | 0.035 in, 0.045 in, and 1/16 in |
| Spool Sizes and Packaging | 33 lb (15 kg) spool |
| Base Material Compatibility | High-strength low-alloy steels (e.g., ASTM A514) |
Chemical Composition and Mechanical Properties of ER80S-Ni1
Nickel enhances low-temperature notch toughness, yielding high tensile strength and impact resistance for structural applications. Manganese and silicon deoxidise, carbon stays capped to preserve ductility, and strict phosphorus/sulphur limits prevent solidification cracking
Chemical Composition of ER80S-Ni1
| Element | Composition |
| Carbon (C) | 0.12% max |
| Manganese (Mn) | 1.25% max |
| Silicon (Si) | 0.40-0.80% |
| Nickel (Ni) | 0.80-1.10% |
| Chromium (Cr) | 0.15% max |
| Molybdenum (Mo) | 0.35% max |
| Phosphorus (P) | 0.025% max |
| Sulphur (S) | 0.025% max |
| Vanadium (V) | 0.05% max |
| Copper (Cu, total) | 0.35% max |
Mechanical Properties of ER80S-Ni1 Weld Metal
| Property | Value |
| Tensile Strength | 550 MPa (80 ksi) min |
| Yield Strength | 470 MPa (68 ksi) min |
| Elongation | 24% min |
| Impact Toughness | 27 J (20 ft-lbf) min at -45°C (-50°F) |
| Hardness | Not specified under AWS A5.28 |
ER80S-Ni1 MIG Wire vs. TIG Filler Wire
MIG welding feeds wire mechanically from a spool, so deposition stays high through long fill passes. TIG welding works differently. The welder adds cut-length filler by hand into an arc struck from a non-consumable tungsten electrode, which slows deposition but tightens control over heat input and bead profile. Equipment separates the two processes as well: MIG needs a wire feeder and gun, while TIG requires a torch, amperage control, and high-frequency arc starting. ER80S-Ni1 is a filler metal classification rather than a single format, and the same chemistry is supplied as ER80S Ni1 TIG wire in cut lengths. Confirm format availability before ordering.
ER80S-Ni1 MIG Wire Applications
- Pressure vessels and low-temperature storage tanks in ASTM A516 and A333 steels
- Pipeline girth and fill welding on API 5L grades up to X65
- Weathering steel structures fabricated from ASTM A588
- Offshore platforms, shipbuilding sections, and heavy structural assemblies
- Boilers, heat exchangers, and liquefied gas storage equipment
Manufacturing Process of ER80S-Ni1 MIG Wire
- Material Selection: Low-carbon steel billets screened for residual element content
- Alloying and Melting: Nickel, manganese, and silicon added to meet A5.28 limits
- Forming Processes: Hot rolling, pickling, multi-pass drawing, then copper coating
- Composite Filler Metal Production: Layer-wound spooling, diameter gauging, and batch certification
Key Benefits of COREWELD 80SNi1 Filler Metal
COREWELD 80SNi1 holds a nickel-bearing chemistry within AWS A5.28 limits. The points below describe what the classification supports, subject to the welding procedure in use.
- Low-temperature toughness: The 0.80 to 1.10% nickel range supports 27 J at minus 45°C.
- Matched strength class: Deposits meet the 550 MPa tensile and 470 MPa yield minimums.
- Copper-coated surface: Steady current pick-up and smoother feeding through the liner.
- Controlled residuals: Phosphorus and sulphur capped at 0.025% each.
- Procedure dependence: Shielding gas, parameters and heat treatment set the final properties.
Why Choose COREWELD 80SNi1 MIG Wire?
COREWELD 80SNi1 suits buyers qualifying procedures on low-alloy and fine-grained steels where documented toughness data is a contract requirement. The classification is verifiable against AWS A5.28 and ASME SFA-5.28, so inspection teams can trace chemistry and property limits to a published standard. Wire diameters, spool weights, and packaging configurations appear in the product datasheet alongside recommended welding parameters. Technical assistance covers classification queries and base metal matching. Review the official datasheet and your own welding procedure specification before confirming the filler metal for production work.
ER80S-Ni1 MIG Wire Supply and Technical Support
Enquiries cover wire diameter, spool size, packaging format, and bulk order quantities for repeat production schedules. Technical support extends to classification interpretation and base metal compatibility checks. Supply your base steel grade, intended shielding gas, welding process, and the governing project specification when requesting product information, since those four inputs determine whether this classification fits the application. Request the COREWELD 80SNi1 datasheet to confirm diameter and packaging options before raising a purchase order.
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Frequently Asked Questions About ER80S-Ni1 MIG Wire
What is ER80S-Ni1 MIG wire used for?
Welding carbon and low-alloy steels that need 80 ksi tensile class weld metal with sub-zero toughness. Pressure vessels, pipelines, storage tanks, and weathering steel structures all use it.
What does the Ni1 designation mean in ER80S-Ni1?
Ni1 marks a nominal 1% nickel addition. AWS A5.28 sets the wire limit at 0.80 to 1.10% nickel, included to raise notch toughness in the deposited weld metal.
Which steel grades are compatible with ER80S-Ni1 filler metal?
ASTM A516, A333, A537, A588 weathering steel, and API 5L pipeline grades up to X65 are common matches. Verify base metal suitability against manufacturer recommendations.
What shielding gas is recommended for ER80S-Ni1 MIG wire?
Argon-rich mixtures apply here, with 98% argon plus 2% oxygen and 92% argon plus 8% carbon dioxide both in regular use. Gas choice affects toughness results.
Is ER80S-Ni1 available as TIG filler wire?
Yes. The same classification is supplied as cut-length rod, commonly between 1.6 mm and 3.2 mm. Spool and cut-length formats are stocked separately, so confirm availability.
Which standard applies to ER80S-Ni1 MIG wire?
AWS A5.28, adopted by ASME as SFA-5.28, covers low-alloy steel electrodes and rods for gas-shielded arc welding. The UNS number for this weld metal is K11260.