Pieces of KOVAR tubing for sale.
All sale final. While supplies last
*KOVAR is an Iron-Nickel-Cobalt alloy with coefficient of thermal
expansion (CTE) very
close to Pyrex. We use it in our glass laser tubes as transition metal in
glass-to-metal seals
Last updated Aug. 15, 2023
Price does not include shipping. For "TYPE" explanation, please see bottom of page and sample photo
This is the COMPLETE LIST of our Surplus Kovar pieces for sale. |
|
SORTED ON DECREASING OD | |||||||
Type | OD +/-0.02 | Length +/- 0.05 | Wall | Qty on hand | Price each $ | ||
C | 4.5 photo | 2.5 | 0.120 | 50 | |||
C | 3.1 photo | 2.5 | 0.04 | 15 | 15 | ||
C | 3.10 | 1.60 | 0.11 | 8 | 15 | ||
C | 2.25 | 2.25 | 0.050 | 10 | |||
C | 2.2 | 1.50 | 0.035 | 10 | |||
C | 2.17 photo | 1.50 | 0.035 | 10 | |||
C | 1.97 | 2.75 | 0.050 | 10 | |||
C | 1.97 | 2.00 | 0.050 | 8 | |||
C | 1.93, photo | 0.60 | 0.03 | 31 | 8 | ||
C | 1.75, photo | 1 1/8" | 0.100 | 30 | 8 | ||
Type | OD +/-0.02 | Length +/- 0.05 | Wall | Qty on hand | Price each $ | ||
C | 1.61 | 1.5 | 0.03 | 8 | |||
C | 1.61, photo | 0.7 | 0.05 | 42 | 5 | ||
C | 1.61+/-0.01, photo | 1.6 | 0.050 | 10 | |||
C | 1.50, photo | 1.5" | 0.04 | 8 | |||
FC | 1.50 | 1.25 | 0.035 | 8 | |||
C | 1.38 | 1.75 | 0.03 | 1 | 10 | ||
C | 1.38 | 1.00 | 0.03 | 8 | 8 | ||
C | 1.25 | 1.50 | 0.03 | 12 | |||
C | 1.25 photo | 0.9 | 0.03 | 10 | |||
C | 1.19 photo | 1 1/4 | 0.05 | 8 | |||
C | 1.10 | 2.9 | 0.100 | 8 | |||
C | 1.09 | 0.75 | 0.100 | 8 | |||
Type | OD +/-0.02 | Length +/- 0.05 | Wall | Qty on hand | Price each $ | ||
T | 1.00 photo | 0.75 | 0.03 | 20 each | |||
C | 1.00, photo | 1.63 | 0.03 | 16 each | |||
C | 1.00 | 0.90 | 0.050 | 45 | 12 | ||
C | 0.93 (24mm) | 0.69 | 0.03 | 12 | |||
C | 0.90 | 0.88 | 0.03 | 24 | 12 | ||
C | 0.875 | 0.50 | 0.03 | 70 | 12 | ||
T | 0.750 | 48" long tube | 0.03 | 4 feet long, will not cut | $500 ea | ||
T | 0.750 | 24" long tube | 0.03 | 23 7/8" long, will not cut | $260 ea | ||
T | 0.75 photo | 0.70 | 0.03 | 23 | 20 each | ||
T | 0.75 photo | 0.65 | 0.03 | 48 | 20 each | ||
T | 0.75 photo | 0.60 | 0.03 | 20 each | |||
C | 0.69 | 1 1/8 | 0.03 | 12 | |||
C | 0.68 | 1.00 | 0.03 | 12 | |||
C | 0.66 | 1.20 | 0.03 | 12 | |||
T | 0.65 | 1.75 | 0.03 | 12 | |||
Type | OD +/-0.02 | Length +/- 0.05 | Wall | Qty on hand | Price each $ | ||
T | 0.68 photo | 0.75 | 0.03 | 35 | 18 each | ||
T | 0.65 photo | 0.65 | 0.03 | 115 | 18 each | ||
FC | 5/8 photo | 0.4 | 0.03 | 49 | 5 | ||
C | 0.62 photo | 1.20 | 0.03 | 98 | 10 | ||
T | 5/8 = 0.62 photo | 0.75 | 0.03 | 4 | 18 | ||
C | 0.50 | 1.50 | 0.03 | 8 | |||
FT | 0.50 photo | 7/8" | 0.02 | 10 | |||
FC | 0.50 | 7/8" | 0.02 | 4 | 10 | ||
T | 0.50 photo | 0.87 | 0.02 | 12 | |||
C | 0.50 | 0.63 | 0.02 | 11 | 8 | ||
C | 7/16 photo | 0.9 | 0.03 | 200 | 3 each | ||
FC | 7/16 photo | 1.80 | 0.03 | 3 each | |||
FC | 7/16 photo | 1.1 | 0.03 | 38 | 3 | ||
FC | 0.38" photo | 5/8" | 0.025 | 200+ | 3 each | ||
Type | OD +/-0.02 | Length +/- 0.05 | Wall | Qty on hand | Price each $ | ||
T | 3/8 photo | 1.0 | 0.03 | 30 | 10 | ||
C | 0.38" | 0.50 | 0.03 | 200+ | 3 each | ||
C | 0.36 | 0.56 | 0.03 | 4 | |||
C | 0.25 photo | 0.45 | 0.02 | 200+ | 3 each | ||
FT | 0.25 photo | 0.45 | 0.02 | 200+ | 3 each | ||
FT | 0.20 sketch | 0.35 | 0.015 | 19 | 3 each | ||
FT | 0.175 photo | 0.30 | 0.015 | 3 each |
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Thermal Coeff. of expansion: | ||||||
deg C | 300 | 400 | 500 | 600 | 700 | 800 |
mil/inch | 1.5 | 2.3 | 2.8 | 4.5 | 6 | 8 |
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