Kovar Wire, Round Bar and Rod — UNS K94610

Kovar wire and rod
Sheet, Kovar® Tape
Kovar Wire and Rod Supplier | UNS K94610 | Evek LLC

International Equivalent

Mark Analogue W. Nr. Aisi Uns En Order
29NK 1.3981 K94610 NiCo29-18 Availability confirmed on request
29NK-t 1.3981 K94610 NiCo29-18 Availability confirmed on request
29NK-m 1.3981 K94610 NiCo29-18 Availability confirmed on request

Kovar wire and rod for specified applications

Kovar is a controlled-expansion iron-nickel-cobalt alloy used in glass-to-metal and ceramic sealing designs. Tell us whether you need coil wire, straight cut lengths, round bar or a machined blank. Product form, condition and mill documentation must match the drawing; a trade name alone is not a purchase specification.

What to send for a quote

  • Grade or UNS designation and governing material standard, such as ASTM F15 if specified
  • Diameter, tolerance, length or coil form, surface finish and condition
  • Quantity, required mill test report, drawing or inspection requirements
  • U.S. delivery ZIP code and requested delivery date

Request product-specific pricing

Send these details through the form below. Evek LLC will confirm availability, documentation, pricing and lead time for the exact order.

Request a Quote

Specification and quality notes

The historical 29NK composition table below is retained only as background for the legacy designation. It does not certify the quoted lot or establish automatic equivalence to every UNS K94610 requirement. Confirm chemistry and expansion requirements from the governing standard and material certificate.

Historical 29NK reference table

Fe C Si Mn Ni S P Cr Co Ti Al Cu
51.14 - 54.5 ≤0.03 ≤0.3 ≤0.4 28.5 - 29.5 ≤0.015 ≤0.015 ≤0.1 17 - 18 ≤0.1 ≤0.2 ≤0.2

Related products

Kovar product overview; Kovar sheet and strip. You can also contact Evek LLC about your specification.