Special alloy steel

kovar & Invar Alloys
Kovar alloy & Invar alloy It is two precision alloys with special thermal expansion characteristics, designed specifically for applications that require thermal expansion matching or ultra-low thermal expansion
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PRODUCT DESCRIPTION
Brand comparison table
 Grade StandardApplications
ASTM F15MIL-I-23011Transistor/IC Ceramic Metal Packaging
Iron-NickelGB/T 15018Microwave tube casing, laser sealing components
Duplex StainlessCr:25%, Ni:7%, Mo:4%Vacuum electronic devices, aerospace sensors
Invar® 36                ASTM F1684Satellite composite material molds, LNG storage tanks
4J36 (Chinese Std)GB/T 15018Precision clock balance wheel, optical platform bracket
Invar® M93AMS 7724Ultra low temperature scientific instrument (stable at -200 ° C)
PACKAGING & DELIVERY

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FAQ

Q1:Do you provide samples? Is it free or extra?
A1:Yes, we can provide samples free of charge and the customer will pay the freight.
Q2:What if I don't have export experience ?
A2:We have reliable forwarder agent which can ship items to you by sea/air/Express to your doorstep. Any way, we will help you choose the most suitable shipping service.
Q3:How long is your lead time?
A3:If it is in stock, it is usually 5-10 days. Or, if there is no inventory, 15 days, depending on the quantity.
Q4:What are your terms of payment?
A4:30% T/T deposit in advance, 70% T/T balance within 5 days after B/L copy, 100%.Irrevocable L/C at sight, 100% Irrevocable L/C after receive B/L 30-120 days, O/A.
Q5:How is your technical support?
A5:We provide lifetime online support through Whatsapp/ Skype/ Wechat/ Email. Any problem after delivery, we will offer you call anytime.

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