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Key Takeaways

• 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.

Upper-middle CTA: Need the .045 in. 33 lb spool?

Best For

• Industrial maintenance hardfacing.
• Metal recovery on worn steel components.
• High abrasion areas where parts see metal-to-metal wear.
• Crusher rolls, mill hammers, conveyor screws, rollers, and similar wear parts.
• Repair departments that need a full 33 lb spool for recurring hardface work.

Key Specs

Compatibility / Fitment Notes

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.

• View drive rolls at Arc Weld Store — verify .045 in. flux-cored compatibility before ordering.
• View MIG consumables at Arc Weld Store — confirm contact tip, nozzle, diffuser, and liner series fitment.
• Compare hard surface MIG wire at Arc Weld Store — useful when hardness, abrasion level, or wire size needs differ.
• View respiratory protection options at Arc Weld Store — verify required protection for your shop’s exposure assessment.

Weld Support Parts Breakdown Reference

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:

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?