Wholesale Custom Carbide Strips Manufacturers & Factory

Unground sintered carbide strips come straight from the Sinter-HIP furnace with a standard sintering skin and typical dimensional tolerances of ±1.5% to ±2.0% (shrinkage allowance). Ground carbide strips undergo high-precision diamond grinding to achieve tight tolerances (such as ±0.01 mm or ±0.005 mm) on thickness, width, parallelism, and surface finish (Ra 0.2 to 0.4 µm), making them ready for immediate braze or mechanical clamp integration.

Tungsten carbide has a thermal expansion coefficient (~4.5–6.0 × 10⁻⁶/K) that is less than half that of tool steel (~11–13 × 10⁻⁶/K). During cooling, differential contraction induces severe residual tensile stress. We recommend using sandwich braze foils (copper-silver-copper composite shim), keeping heating uniform using medium-frequency induction, and ensuring a slow, insulated cooling cycle to prevent interfacial delamination.

For standard catalogue sizes or preformed blanks, our MOQ starts from 1 piece for evaluation. Custom profiles requiring specialized hydraulic dies or pre-sintering EDM green machining have a sample turnaround of 7 to 10 days, with full production batch delivery completed within 15 to 25 days depending on batch quantity and secondary grinding requirements.

Yes. Depending on volume and dimensional geometry, mounting holes, bevels, chip-breakers, and counterbores can be formed during the green powder compaction stage prior to sintering to minimize machining cost. For ultra-precision hole spacing and tight diameter tolerances, holes are wire-EDMed or diamond ground post-sintering.

Every production lot undergoes destructive and non-destructive quality audits. We inspect sample metallographic cross-sections according to ISO 4505 standards for apparent porosity (guaranteeing A02, B00, C00 ratings), verify coercivity and magnetic saturation to confirm correct carbon balance, and check density and hardness via automated ultrasonic and Rockwell testing systems.