High Precision Invar 36 Material Nickel Plate Type For Thermostats
Brand Name:BLM-NC-1
Minimum Order Quantity:Negotiation
Delivery Time:25-30 days subject to the clients' requirement and quantity
Payment Terms:Western Union, L/C, T/T
Place of Origin:Jiangsu, China (Mainland)
Price:Negotiation
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Iron nickel alloy invar 36 / 4j36 Plate For Thermostats
Introduction of Invar alloy/4J36/UNS k93600
Invar 36 is a nickel-iron-chromium alloy with additions of copper and molybdenum. It also contains niobium for stabilization against sensitization and resultant intergranular corrosion. Invar 36 has excellent resistance to general corrosion, pitting, and crevice corrosion in chemicals containing chlorides and sulfuric, phosphoric and nitric acids. Invar 36 is used for tanks, piping, heat exchangers, pumps, valves and other process equipment. Standard product forms are round, flats, pipe,
This alloy has been used for applications where dimensional changes
due to temperature variation must be minimized such as in radio and
electronic devices, aircraft controls, optical and laser system,
etc.
Invar 36 alloy has also been used in conjunction with high
expansion alloys in applications where a motion is desired when the
temperature changes, such as in bimetallic thermostats and in rod
and tube assemblies for temperature regulators.
Forging
Quick heating to forging temperature, 2000/2150ºF (1100/1180ºC), is
suggested to minimize length of time exposed to sulfur and oxygen,
hence to minimize sulfide and
oxide penetration from the furnace atmosphere, Forging should not
be performed below 1700/1800ºF (925/980ºC), but advice should be
taken on actual finishing temperatures and their effects on
material properties.
Heat Treatment
For optimum dimensional stability – cold work causes very slight
changes in dimensional stability – heat to 1500ºF (815ºC), hold for
30 minutes per inch of section and water quench, then reheat to
600ºF (315ºC) for 1 hour and air cool.
A simple annealing treatment is carried out at 1450ºF (790ºC) for
30 mins per section inch and air cooling.
Machinability
The alloy is not easy to machine, and gumminess may result from the
alloy’s high work- hardening rate. Positive feeds and overpowered
equipment are recommended.
A free-machining variety of Invar 36, containing nominally 0.20
percent selenium, is available.
Weldability
The alloy may be welded by conventional methods.
High Precision Invar 36 Material Nickel Plate Type For Thermostats
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