8.36g/Cm3 Kovar Rod Kovar Alloy K Uns K94610 With Good Low Temperature Structure Stability

Brand Name:JINXING
Certification:ISO 9001
Model Number:Kovar Rod
Minimum Order Quantity:50KGS
Delivery Time:25 work days
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Kovar Rod Alloy K / K94610 / ASTM F15


Kovar rod is made up of 29% nickel, 17% cobalt, .2% silicon, .3% manganese and 53.5% iron. Kovar is known for its low coefficient of thermal expansion. Kovar end uses are usually glass sealing in the electronics industry.


Alloy NameTrade NameUNS #British SpecAmerican SpecGerman SpecFrench Spec
Alloy KKovar
Nilo K
Rodar
UNS K94610ASTM F15
ASTM F26
AMS 7726
AMS 7727
MIL-I-23011C Class 1
1.3981AFNOR NF A54-30

  • Description

Kovar Foil SPECIFICATION

ASTM F15 , UNS K94610, Werkstoff Nr 1.3981 , DIN 17745 , MIL-I23011 Class 1, AFNOR NF A54-301, S.E.W 385


Heat Treatment:

For the performance test sample of expansion coefficient and low temperature tissue stability specified in the standard, heat it to 900 ℃± 20 ℃ in hydrogen atmosphere for 1h, then heat it to 1100 ℃± 20 ℃ for 15min, and cool it to below 200 ℃ at the speed of no more than 5 ℃ / min.


Material :

RussiaUSAEnglandJapanFranchGermany
29HKkovarNilo KKV-1Dilvar P0Vacon 12
29HK-BRodar
Techallony Glasseal 29-17
TeleasealKV-2
KV-3
Dilver P1Silvar

Content Composition %

CPSMnSiCuCrMoNiCoFe
Less than
0.030.020.020.50.30.20.20.228.5-29.516.8-17.8Rest

Physical properties

Densityg/cm38.25
Curie Point430
Resistivityμ· m0.48
Tensile strength MpaCold state
Annealing520
Yield strength MpaCold state
Annealing330
Elongation %Cold state
annealing30

TypeSize/mmDeliver State
Bar5.0-8.0Cold Drawn
8.0-30.0Hot rolling
30.0-180.0Hot forging
Plate3.5-30.0Hot rolling
30.0-40.0Hot forging
Strip0.2-3.5Cold rolling
Flat wire0.5-5.0Hot rolling
Round wire0.1-5.0Cold Drawn
CapillaryOD8.0-1.0,ID0.1-8.0Cold Drawn
PipeOD120-8.0, ID8.0-129Cold drawn


The linear expansion coefficient of the kovar alloy is similar to that of borosilicate glass at 20-450 ℃, the Curie point is higher, and the alloy has good low temperature structure stability. The oxide film of the alloy is compact and can be well infiltrated by glass. It does not interact with mercury and is suitable for use in instruments containing mercury discharge. It is the main sealing structure material of electric vacuum device.


China 8.36g/Cm3 Kovar Rod Kovar Alloy K Uns K94610 With Good Low Temperature Structure Stability supplier

8.36g/Cm3 Kovar Rod Kovar Alloy K Uns K94610 With Good Low Temperature Structure Stability

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