Washington Alloy THF-700HT-173 is a .045 in. hard face flux-cored MIG wire supplied on a 33 lb spool for rebuilding worn steel parts exposed to metal-to-metal abrasion. This article is built to help maintenance shops, repair departments, and industrial buyers verify whether this hardfacing wire matches the job before ordering.
For current availability, order verification, and shipping details,
Product: Washington Alloy THF-700HT-173 hard face flux-cored MIG wire.
Size: .045 in. wire on a 33 lb spool.
Primary use: high metal-to-metal abrasion applications.
Deposit structure: martensitic; designed to work harden in service.
Common applications include rollers, conveyor screws, crusher rolls, and mill hammers.
Verify machine capacity, drive rolls, liner size, polarity, shielding gas, and base metal condition before ordering.
Product Overview
Washington Alloy 700HT is a hardfacing flux-cored wire intended for wear-facing work where abrasion resistance is more important than general fabrication weld strength. The Arc Weld Store listing describes this product as primarily used for high metal-to-metal abrasion. The manufacturer technical data states that 700HT produces martensitic weld deposits that work harden in service and bond well with fatigued or older hard-faced deposits.
This is not a general-purpose ER70S-6 replacement. It should be selected when the repair objective is wear resistance on appropriate steel components, not when the job requires a mild steel structural filler wire.
Fitment for this product is less about torch model and more about whether your MIG or FCAW system can correctly feed and run .045 in. hardfacing flux-cored wire. Before ordering, verify that your feeder accepts 33 lb spools, your drive rolls match .045 in. flux-cored wire, your gun liner is sized correctly, and your power source can run the required amperage and voltage range.
Compatibility with a specific welding machine, feeder, gun, liner, drive roll, contact tip, shielding gas blend, or base metal is Unknown (Verify) unless confirmed against your equipment documentation and the manufacturer procedure data.
Before You Order
Machine model: Confirm your welder can run .045 in. FCAW hardfacing wire in the required output range.
Wire feeder: Verify 33 lb spool capacity and hub compatibility.
Drive rolls: Confirm the correct .045 in. flux-cored drive roll style. Compatibility: Unknown (Verify).
Gun liner: Confirm the liner supports .045 in. wire and is clean enough for consistent feed.
Contact tips: Use contact tips sized for .045 in. wire. Brand and series compatibility: Unknown (Verify).
Polarity: Manufacturer procedure data lists DCEP.
Shielding gas: Manufacturer procedure data lists CO2 ranges and notes lower voltage with mixed gas. Verify your exact procedure.
Base metal: Confirm the part is suitable for hardfacing and that previous deposits, cracking, or contamination are addressed.
Preheat/interpass: Manufacturer TDS notes that 300–500°F preheat/interpass may yield superior properties.
Application: Confirm the job is abrasion-focused rather than a structural joining weld.
Safety documentation: Review the SDS before use and confirm shop ventilation, PPE, and fume controls.
Accessories / Compatible Products
Because consumable fit depends on your exact MIG gun, feeder, and wire path, do not order tips, liners, nozzles, or drive rolls by wire diameter alone. Match the consumable series to your gun and confirm the .045 in. size before purchase.
No torch-specific parts breakdown is required to identify this wire because the product is a welding consumable, not a gun or torch assembly. For safety documentation, review the confirmed hardfacing flux-cored SDS before use.
If you are replacing contact tips, liners, nozzles, diffusers, or drive rolls at the same time, use the parts breakdown for your specific MIG gun or feeder before ordering those items.
Common Applications
Crusher roll repair.
Mill hammer hardfacing.
Conveyor screw rebuilding.
Roller wear-facing.
Industrial equipment repair where metal-to-metal abrasion is the primary failure mode.
Maintenance welding on older hard-faced deposits when procedure and base metal condition are verified.
Shipping / Returns Notes
The Arc Weld Store product page lists free ground shipping to the lower 48 on qualifying orders, shipment from Corydon, Indiana, typical 1–2 business day shipping unless noted, and returns accepted on unused items in original packaging. Confirm current shipping, pickup, and return details on the product page before purchasing.
FAQ
Is Washington Alloy THF-700HT-173 a general MIG wire?
No. It is a hardfacing flux-cored MIG wire intended for abrasion-resistant deposits. Use a general-purpose filler only when the application calls for it.
What wire size is this spool?
The Arc Weld Store listing identifies this product as .045 in. wire on a 33 lb spool.
What polarity does the manufacturer procedure list?
The Washington Alloy technical data sheet lists DCEP for the typical FCAW welding procedures.
Can I use my existing MIG gun consumables?
Compatibility is Unknown (Verify). Confirm your gun series, liner size, contact tip size, drive roll style, and feeder capacity before ordering replacement consumables.
Does this wire require shielding gas?
The manufacturer procedure table lists CO2 flow ranges and notes voltage adjustment when using mixed gas. Verify the exact gas recommendation for your procedure, position, machine, and base metal.
Where should I buy Washington Alloy THF-700HT-173?
For this product, use Arc Weld Store as the primary ordering source:
“>view Washington Alloy THF-700HT-173 at Arc Weld Store.
Safety Notes
Hardfacing flux-cored welding produces fumes, gases, arc radiation, sparks, heat, and electrical hazards. Review the SDS, follow your employer’s welding safety practices, use appropriate welding helmet, gloves, protective clothing, respiratory protection when required, and maintain adequate ventilation. The SDS references ANSI Z49.1 and OSHA Hazard Communication requirements. Always follow the manufacturer instructions and the safety program for your site.
Sources Checked
Arc Weld Store product page for Washington Alloy THF-700HT-173 .045 x 33 lb spool.
Washington Alloy 700HT technical data sheet.
Washington Alloy hardfacing flux-cored SDS supplied through Weld Support Parts blog media.
Weld Support Parts search for relevant support/breakdown reference.
End CTA: Ready to order the verified .045 in. 33 lb spool?
Nickel stick electrodes are commonly ordered for cast iron repair, build-up work, and joining cast iron to compatible dissimilar metals. Arc Weld Store’s Nickel Electrode collection includes Weldcote Metals and Washington Alloy nickel electrodes in verified package sizes and diameters. This guide is built to help buyers select the right nickel electrode option, verify fitment before ordering, and avoid downtime from choosing the wrong diameter, alloy type, or package size.
Arc Weld Store currently lists 4 nickel electrode products in the Nickel Electrode collection.
Verified brands include Weldcote Metals and Washington Alloy Co.
Verified electrode options include Nickel 99 and Nickel 55 products.
Verified diameters include 3/32 inch, 1/8 inch, and 5/32 inch, depending on product.
Compatibility, amperage range, polarity, and machine requirements should be verified before ordering.
Product Overview
The Nickel Electrode collection is focused on stick electrodes for cast iron repair and related industrial welding applications. The listed products include Weldcote Metals 99 Nickel Stick Electrode in a 1 lb package and Washington Alloy 55% Nickel Stick Electrode in 10 lb packages across multiple diameters.
Nickel stick electrodes are not selected by brand alone. The buyer should confirm alloy type, electrode diameter, base metal condition, welding position, power source capability, required machinability, and repair procedure before ordering.
Nickel 99: Arc Weld Store states the Weldcote NI-99 electrode is designed for welding gray iron castings to themselves and joining them to mild steels or stainless steels. The product description also states that Nickel 99 weld deposits are machinable.
Nickel 55: Arc Weld Store states Washington Alloy Nickel 55 is designed for all-position joining and surfacing of cast iron, malleable iron, and ductile iron to itself or dissimilar metals such as mild steels, stainless steel, wrought alloys, or high nickel alloys.
Diameter fitment: Confirm that the selected 3/32 inch, 1/8 inch, or 5/32 inch electrode diameter matches your welding machine output, electrode holder, joint design, casting thickness, and repair procedure.
Application limits: Compatibility with a specific casting, machine, electrode classification, or welding procedure is Unknown (Verify) unless confirmed against the job requirements.
Before You Order
Use this checklist before purchasing nickel stick electrodes for cast iron repair or maintenance welding:
Confirm the base metal: gray iron, cast iron, malleable iron, ductile iron, mild steel, stainless steel, wrought alloy, or high nickel alloy.
Confirm whether Nickel 55 or Nickel 99 is required for the repair procedure.
Confirm electrode diameter: 3/32 inch, 1/8 inch, or 5/32 inch.
Confirm package quantity: 1 lb or 10 lb.
Confirm welding machine amperage capability for the selected diameter: Unknown (Verify).
Confirm polarity requirement: Unknown (Verify).
Confirm welding position requirements.
Confirm whether the weld deposit must be machinable after repair.
Confirm preheat and interpass requirements for the casting and electrode. Arc Weld Store lists a preheat and interpass temperature of not less than 350°F / 175°C for Weldcote NI-99.
Confirm OEM number or internal maintenance part number, if replacing a stocked electrode.
Confirm storage requirements for opened electrode containers: Unknown (Verify).
Confirm safety controls for fumes, ventilation, PPE, fire watch, and hot work permits.
Accessories / Compatible Products
Only technically relevant accessories should be added to a nickel electrode order. Compatibility must be verified for each shop setup and application.
Joining gray iron castings to mild steel or stainless steel when verified by the welding procedure.
Repairing motor blocks, housings, machine parts, frames, defective castings, and worn sections when the selected electrode is appropriate.
Building up worn cast iron sections with a verified Nickel 55 repair procedure.
Shipping / Returns Notes
Arc Weld Store product pages list shipment from Corydon, Indiana, typical fulfillment of 1–2 business days unless noted, free ground shipping to the lower 48 on qualifying orders, pickup availability at the Corydon location, and returns accepted on unused items in original packaging. Always confirm current shipping, pickup, discount, and return details on the product page before ordering.
FAQ
What nickel electrode options are listed in this Arc Weld Store collection?
The collection includes Weldcote Metals 99 Nickel Stick Electrode and Washington Alloy 55% Nickel Stick Electrode options in verified diameters of 3/32 inch, 1/8 inch, and 5/32 inch.
Is Nickel 55 or Nickel 99 better for cast iron repair?
That depends on the casting, repair procedure, weld deposit requirements, and machinability requirements. Arc Weld Store describes Weldcote NI-99 as machinable and designed for gray iron castings. Arc Weld Store describes Washington Alloy Nickel 55 as suited for all-position joining and surfacing of cast iron, malleable iron, and ductile iron. Verify the correct alloy before ordering.
Can I choose the electrode by diameter only?
No. Diameter is only one selection factor. Confirm alloy family, amperage range, polarity, welding position, base metal, repair procedure, and package quantity before ordering.
Are amperage ranges listed for these products?
Amperage range is Unknown (Verify) from the Arc Weld Store product pages checked for this article. Confirm the amperage range before purchasing or welding.
Where can I get fitment help before ordering?
Arc Weld Store product pages direct buyers to email sales@arcweldinc.com with the process, material, thickness, part number, equipment model, and application for help choosing the correct item.
Safety Notes
Nickel electrode welding can produce fumes, heat, arc radiation, sparks, and hot work hazards. Follow your employer’s welding safety program, SDS requirements, ventilation requirements, PPE requirements, and applicable OSHA welding, cutting, and brazing requirements. Do not weld on containers, castings, or parts that may contain trapped gases, flammable residue, unknown coatings, or hazardous contamination until they are properly evaluated and prepared.
