Tungsten Carbide Sinter Rods

  • Product name: Tungsten Carbide Sinter Rods
  • Particle: Ultrafine, Submicron, Medium, Coarse
  • Material: 100% Virgin Tungsten Carbide
  • Grade: Standard grade & Customized grade according to customers’ requirements
  • Surface: Blanks, sintered
  • Shape: Round
  • Hardness:89.5-91HRA
  • Shape: Round
  • Excellent Wear Resistance, Corrosion Resistance, Impact resistance
  • Certificate: ISO 9001
  • Properties: Wear Resistance
  • Excellent Abrasion Resistance

Product Description

Tungsten Carbide Sintered Rods are high-performance industrial components manufactured through powder metallurgy, where tungsten carbide micro-powders are bonded with cobalt under high temperature and pressure. The rods, known as “teeth of industry,” display exceptional hardness which frequently surpasses HRA 90 together with their ability to resist wear and maintain structural stability during extreme heat. The company uses their raw material to create precise cutting tools, including drills and end mills and reamers, which maintain sharp edges while operating in extreme machining conditions.

Features of Tungsten Carbide Sinter Rods

  • Extreme Hardness: With a hardness of 90-94 HRA, they are nearly as hard as diamonds, making them the industry standard for cutting steel and tough alloys.
  • Red Hardness: Unlike standard steel, these rods maintain their hardness and cutting edge even at extreme temperatures (up to 800-1000°C).
  • High Rigidity: They are roughly 3x stiffer than steel. This high Young’s modulus prevents bending or deflection during high-precision machining.
  • Wear Resistance: Thanks to the dense sintered structure, they last 20 to 50 times longer than High-Speed Steel (HSS) in abrasive environments.
  • Customizable Toughness: By tweaking the Cobalt content and grain size, the rods can be optimized for either maximum wear resistance or better impact strength.

Specification of Tungsten Carbide Sinter Rods

Product nameTungsten Carbide Sinter Rods
Material100% pure tungsten carbide
ISO GradeStandard grade & Customized grade
Density12.9-15.3/㎝
SizeCustomization
LengthCustomization
AdvantageGood wear-resistant
SurfaceRough or blanks

Typical Applications

  1. Precision Cutting Tools: This is their primary use. They are ground into end mills, drills, and reamers for machining hardened steel, aluminum, and titanium.
  2. PCB Processing: Used to make micro-drills (often thinner than a human hair) for drilling precise holes in printed circuit boards for electronics.
  3. Metal Stamping & Dies: Fabricated into punches, mandrels, and ejector pins that require extreme wear resistance under high pressure.
  4. Aerospace & Automotive: Used for machining high-temperature alloys and composite materials (like carbon fiber) where standard steel tools would dull instantly.
  5. Woodworking: Made into router bits and saw blade inserts for cutting dense hardwoods and abrasive composite boards (MDF/particle board).

Why Choose Our Tungsten Carbide Sinter Rods?

100% Virgin Material

We use only pure tungsten carbide powder—no recycled scrap. This guarantees a consistent internal structure, so your tools won’t snap or wear unevenly during high-speed machining.

HIP Sintering Technology

Our rods go through Hot Isostatic Pressing (HIP). This eliminates internal micro-pores, significantly increasing the rod’s density and Transverse Rupture Strength (TRS).

Rock-Solid Consistency

Every batch is tested for hardness (HRA), density, and metallography. You get the same high performance every time you reorder, with zero guesswork.

FAQs

A1: Yes, but you need the right grade. For stainless steel, we typically recommend a sub-micron grain grade with 10% – 12% Cobalt to handle the heat and the “gummy” nature of the material without chipping.

A2: We use 100% virgin tungsten carbide powder. This ensures zero internal impurities and a uniform microstructure, which prevents premature tool breakage and guarantees consistent performance across every batch.

A3: For standard sizes (like 330mm length, diameters 3mm to 25mm) in stock, we ship within 3-5 days. For custom sizes or specific coolant hole configurations, lead time is typically 15-20 days.

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