Precision Alloy 4J33 4J34 4J42 4J43 4J44 4J47 4J47 Bar Supplier

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Product Overview

Description


Precision Alloy 4J33 4J34 4J42 4J43 4J44 4J47 4J47 Bar Supplier
Precision alloy, is a metal material with special physical properties (such as magnetic, electrical, thermal and other properties).Most precision alloys are based on ferrous metals, while a few are based on nonferrous metals.It usually includes magnetic alloys (see magnetic materials), elastic alloys, expansion alloys, thermobimetallic, electrical alloys, hydrogen storage alloys (see hydrogen storage materials), shape memory alloys, magnetostrictive alloys (see magnetostrictive materials), and so on.
Grade
4j29,4j36,4j42,4j43,4j44,4j47,4j50etc.
Sharp
wire, bar/rod, strip, sheet, tube
Standard
GB/T15018,YB/T5231-2005,YB/T5241-2005,YB/T5235-2005etc.
Basic performance
It is divided into low-expansion alloy and fixed-expansion alloy, the latter is also known as sealing alloy.Expansion alloy besides has the specific thermal expansion coefficient, according to the different USES also requires a good sealing property, weldability and corrosion resistance, machinability and cutting, and in the use of expansion characteristics caused by the temperature range there is no obvious change of phase transformation, its product is commonly bar, sheet, strip, wire and tube and so on.
 Expansion alloy applications
 It is widely used in glass, metal and ceramic sealing in avionics and instruments, electric vacuum industry and other electronic devices, electric light source and other fields.
Specification
GB
ASTM
UNS
W.Nr
KOVAR
4J29
F15
K94610
1.3981
Grade
%
Ni
Cr
Fe
Co
Cu
C
Mn
Si
Kovar
Min
28.5
Re
16.8
Max
29.5
0.2
17.8
0.2
0.03
0.5
0.3
P
S
Mo
0.02
0.02
0.2
Mechanical Properties in the Annealed Condition
Yield Strength (0.1% Offset)
Tensile Strength
Elongation
psi
MPa
psi
MPa
(%)
49,000
340
75,000
520
42
Features
High Curie point
Good low-temperature stability 
Tense oxide film, and can be well wetted by the glass
No reaction with mercury 
Good corrosion resistance in air, fresh water and sea water

FAQ
Q1: Do you accept the trial order ?
A1: Yes,if we have the exactly size in stock.we can delivery even 1 piece/meter .

Q2: Can I have free sample before making orders?
A2: Yes,we can supply free sample as requirement,but buyer needs to pay the freight charges ,the freight fee will return to buyer after making order.

Q3: How do you control the quality ?
A3: MTC and PMI will be sent before shipment,any 3rd party inspection if need .

Q4: How about your delivery time ?
A4: Generally delivery time is 15 working days .

Q5: How can I quickly get the price list ?
A5: Directly click "chat now" via alibaba or send us email with detail specifications,you will get the official price list in 1 hour .

0.2086 s.