What Tools Contain Tungsten Carbide? (And What’s Worth Separating.)

Everything that “has carbide” falls into one of three tiers. Know which tier you are holding before you price it:

• SOLID carbide — the good stuff. Indexable inserts, end mills, drills, taps, reamers, and burrs/rotary files. The whole working end is carbide.
• BRAZED / TIPPED — real carbide, joined to steel. Carbide-tipped saw blades, router bits, brazed lathe tool bits and boring bars, snowplow blades with carbide inserts brazed into steel segments, and planer/jointer knives. The carbide is genuine; it is married to steel with braze alloy.
• IMPOSTERS — not carbide at all. TiN-coated HSS looks like carbide with its gold-colored coating, but underneath it is ordinary high-speed steel. Ceramic inserts are not carbide either. The coating confusion is the #1 mistake sellers make.

Value runs solid > brazed > coated steel (which is just HSS). Never mix the tiers in one box — buyers grade them separately and mixed loads price at the lowest tier.

Carbide lives far beyond the machine shop:

• Mining and drilling — button bits and tricone inserts. Community teardowns report one 400-pound tricone bit holding roughly 35 pounds of carbide.
• Road work — milling teeth with carbide tips.
• Oil and gas — downhole nozzles, valves, and wear components.
• Metal forming — stamping and forming dies, punches, guides.
• Wear parts everywhere — nozzles, seals, valve components, guides in any industry that grinds material for a living.
• Dental burs — solid tungsten carbide, and a micro-niche almost no buyer advertises for specifically.

If a part’s job is cutting, grinding, or surviving abrasion, check it for carbide before it goes in the steel bin.

The test ladder, in order — no lab required:

1. Weight — the “heavy hand” test. Carbide is dramatically denser than steel. Pick it up; carbide feels wrong-heavy for its size.
2. Magnet. Carbide is only weakly magnetic — a faint pull versus steel’s hard grab. Useful, not decisive.
3. Spark test. Touch it to a grinder: carbide throws short, dull-orange sparks; high-speed steel throws bright white fireworks.
4. Scratch and sound. Carbide barely scratches and rings with a high “tink”; steel gives a duller “clunk.”

Buyers escalate from there: XRF guns for instant alloy reads and lab assays for exact tungsten content. That is how final grading works — the ladder above just tells you what is worth sending in.

The community’s honest answer: sometimes — do the math. Un-brazing tool bits runs about 10 pounds of recovered carbide per hour on bits that are 20–25% carbide by weight. Brazed carbide always prices under clean solid carbide, and as the forums put it: “some brazed inserts are just not worth the trouble — but some are.” Whether it pays depends on how fast you are and what your time is worth.

Methods ranked by the people who do it: coal forge, fire-brick forge, rosebud torch (slow), induction (clean but slow). One serious warning: cadmium-bearing braze alloys give off toxic fumes when heated. Ventilation and a respirator, or do not do it at all.

The alternative many sellers choose: sell brazed tools whole to a carbide buyer who prices them as brazed. No torch, no fumes, no hours.

Sort it the way buyers buy it:

• Clean — no braze alloy attached.
• Dirty — braze alloy still on it. Sold separately, on its own pricing.
• Sludge — grinding sludge, swarf, and dust from manufacturing. Saleable at its own grade.

As one longtime buyer tells sellers: sort out the stuff with braze alloy. Brazed carbide is typically bought on special pricing and never mixed with standard scrap — one mixed box downgrades everything in it. When in doubt, keep the tiers in separate boxes and let the buyer’s XRF sort out the rest.

Market context, worth knowing: in August 2026 the U.S. placed tungsten waste and scrap under a Defense Production Act allocation rule running through August 2027 — domestic sellers sell to domestic buyers. And tungsten has had a historic run: the IEA charted roughly a 622% price rise from January 2025 to April 2026, with ammonium paratungstate more than tripling in 2026 alone.

Translation for sellers: domestic carbide has a deep home market right now, and buyers who assay honestly and pay for grade are the ones to sell to.

Ironcrest buys solid carbide, brazed carbide, and carbide scrap — inserts, end mills, drills, brazed tools, wear parts, and sludge — from machine shops and sellers nationwide, including by mail. Photograph it, weigh it, and send it in: grading by XRF and lab assay, priced for what it actually is. See how Ironcrest buys carbide →

What tools contain tungsten carbide?

Solid carbide: indexable inserts, end mills, drills, taps, reamers, and burrs. Brazed or tipped: carbide-tipped saw blades, router bits, brazed lathe tool bits, snowplow inserts, planer knives. Industrial: mining button bits, tricone inserts, road milling teeth, stamping dies, punches, nozzles, and wear parts. TiN-coated HSS is not carbide — the gold coating fools a lot of people.

How can I tell if a tool is carbide?

Work the ladder: weight first (carbide feels wrong-heavy — the “heavy hand” test), then magnet (weak pull vs. steel’s hard grab), then the spark test (short dull-orange sparks vs. HSS white fireworks), then scratch and sound. Buyers confirm with XRF guns and lab assays for exact tungsten content.

Are carbide-tipped saw blades worth scrapping?

The tips are genuine carbide — but detipping is a fight with the braze joint, and whether it pays depends on your speed. Many sellers skip the torch and sell blades whole to a carbide buyer who prices brazed material on its own tier.

Is brazed carbide worth separating from steel?

Sometimes. The community benchmark is about 10 pounds of recovered carbide per hour on tool bits that run 20–25% carbide by weight, priced under clean solid carbide. Factor in the hazard: cadmium-bearing braze alloys release toxic fumes when heated — ventilate properly or sell the tools whole.

What is the difference between hard scrap and soft scrap?

Hard scrap is solid pieces — inserts, end mills, bits, wear parts. Soft scrap is grinding sludge, swarf, and dust from manufacturing. Both are saleable; they are graded and priced separately, so keep them apart.

Who buys carbide scrap by mail?

Ironcrest’s mail-in carbide program buys from sellers nationwide: inserts, end mills, drills, brazed tools, wear parts, and sludge. Photograph and weigh your material, ship it in, and it is graded by XRF and lab assay — priced for what it actually is.