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4J29 Kovar Precision Alloy Round Bar And Rod ASTM F15

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4J29 Kovar Precision Alloy Round Bar And Rod ASTM F15

Brand Name	JX
Model Number	Precision Alloy ASTM F15 4J29 Kovar Alloy Round Bar And Rod
Certification	ISO
Place of Origin	china
Minimum Order Quantity	100kgs
Price	Negotiable
Payment Terms	L/C, T/T
Supply Ability	3000T
Delivery Time	35days
Packaging Details	Standard wooden case
Product Type	Precision Alloy ASTM F15 4J29 Kovar Alloy Round Bar And Rod
Material	Feni Alloy
Carbon Content	low
Transport Package	wooden case
Shape	round bar
Condition	soft
Surface	Bright
Origin	China

Detailed Product Description

Precision Alloy ASTM F15 4J29 Kovar Alloy Round Bar And Rod
ASTM F15 4J29(Kovar) , 4J32,4J33,4J34,4J36(Invar) Kovar Bar

Kovar Alloy Round Bar 4j29 is a iron-nickel-cobalt, low expansion alloy whose chemical composition is controlled within narrow limits to assure precise uniform thermal expansion properties.

Kovar Alloy Round Bar alloy has been used for making hermetic seals with the harder Pyrex glasses and ceramic materials.

Kovar has been used to make hermetic seals with harder Pyrex and ceramic materials. In integrated circuits, it is used in planar packages and dual in-line packages. This alloy has a wide range of applications in power tubes, microwave tubes, transistors and diodes.

Item	1J33	3J01	3J9	4J29	4J32	4J33	4J45	FeNi50	Invar36
C	≤0.05	≤0.05	0.22-0.26	≤0.03	≤0.05	≤0.03	≤0.05	≤0.05	≤0.1
Mn	≤0.05	≤1.00	1.80-2.20	≤0.5	0.2-0.6	≤0.5	≤0.8	≤0.8	≤0.5
Fe	Rest
P	≤0.020	≤0.020	≤0.03	≤0.02	≤0.02	≤0.02	≤0.02	≤0.02	≤0.006
S	≤0.020	≤0.020	≤0.020	≤0.02	≤0.02	≤0.02	≤0.02	≤0.02	≤0.04
Si	0.30-0.6	≤0.80	1.30-1.70	≤0.3	≤0.2	≤0.3	≤0.3	≤0.3	≤0.35
Ni	32.8-33.8	34.5-36.5	9.0-10.5	28.5-29.5	31.5-33	28.5-29.5	44.5-45.5	49.5-50.5	35-38
Al	1.0-2.0	1.00-1.80	--	--	--	--	≤0.1	≤0.1	--
Co	--	--	--	16.8-17.8	3.2-4.2	16.8-17.8	-	-	-
Ti	-	2.70-3.20	-	-	-	-	-	-	-
Cu	-	--	--	--	≤0.2	0.4-0.8	≤0.2	--	--
Cr	--	11.5-13.0	19.0-20.5	≤0.2	--	≤0.2	--	--	--
Mo	--	--	1.60-1.85	≤0.2	--	≤0.2	--	--	--

Kovar Alloy Round Bar Picture:

Thermal conductivity

θ/ºC	100	200	300	400	500
λ/ W/(m*ºC)	20.6	21.5	22.7	23.7	25.4

The heat treatment process
Annealing for stress relief	Heated to 470~540ºC and hold 1~2 h. Cold down
annealing	In vacuum heated to 750~900ºC
Holding time	14 min~1h.
Cooling rate	No more than 10 ºC/min cooled to 200 ºC

FAQ

1. What's the minimum quantity customer can order?
If we have your size in stock, we can provide any quantity you want.
If we do not have, for spool wire, we can produce 1 spool, about 2-3kg. For coil wire, 25kg.

2. How can you pay for small sample amount?
We have Western union account, wire transfer for sample amount also ok.

3. Customer do not have express account. How will us arrange the delivery for sample order?
Just need to provide your address information, we will check the express cost, you can arrange the express cost together with sample value.

Product Tags: 4J29 Precision Alloy Kovar Bar Kovar Alloy Round Bar Rod ASTM F15 Kovar Bar Rod

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