Magellan - Worldwide Suppliers of Specialty Metals

Kovar® - UNS K94610

Kovar® alloy is an iron-nickel-cobalt alloy. Kovar® has been used for making hermetic seals with ceramic materials and glass. Kovar® has been used in power tube, microwave tubes, diodes and transistors.

Available forms are seamless pipe, welded pipe, seamless tube, welded tube, bar, wire, sheet, plate, forgings, pipe fittings and flanges.

Specifications  

International Specifications

Werkstoff Nr. 1.3981
DIN 17745
AFNOR NF A54-301
S.E.W. 385

Sheet/Plate/Bar

MIL-I-23011 CL 1
ASTM F15
AMS 7727
Chemical Analysis

C (Carbon content)

.03 max
MN 2.0 max
P .04 max
S .03 max

Si

1.0 max

Cr

20.0 -22.0

Ni

23.5 - 25.5

Mo

6.0 - 7.0

Cu

.75 max

Co

 

N (Nitrogen content)

.18 - .25

Ti (Titanium contenet)

 

Al (Aluminum content)

 

Fe (Iron content)

bal