Nickel Alloy UNS KOVAR 4J29 tube / pipe with high quality

• Product Type: pipe/tube
• Material: FeNi29Co
• Carbon Content: Low Carbon
• PCD: -
• ET: -
• Hole: -
• Model NO.: kovar
• Sample: Small Order Accepted
• standard: GB/ASTM/JIS/BIS/DIN
• State: Soft 1/4hard 1/2hard hard T-hard
• surface: Bright
• OEM: YES
• MOQ: 100kilograms
• OD: 0.3mm Min.
• WT: 0.02mm
• Length: 0.5-3000mm
• Transport Package: Wooden Cases
• Specification: SGS
• Trademark: TANKII
• Origin: Shanghai
• HS Code: 75052200
• Production Capacity: 5000 T/Year.

Product Description

Nickel Alloy UNS KOVAR 4J29 tube / pipe with high quality

Relative Grade:
29H Kovar Nilo K KV-1 Dilver P0 Vacon 1229H-B Rodar Telcaseal KV-2 Dilver P1 Silvar 48

Specification: Sheet/Plate, Bar/Rod/Wire/Coil,Capillary/Pipe/Tube 

products description  4J29 bar 

General Description
Kovar is a nominal 29%Ni-17%Co-54%Fe alloy that is a well-known glass-sealing alloy suitable for sealing to hard glasses. Kovar has a nominal expansion coefficient of approximately 5 ppm/°C and inflection temperature of ~450 °C (840 °F).
Kovar (ASTM F15) has been used for making hermetic seals with the harder Pyrex glasses and ceramic materials. This alloy has found wide application in power tubes, microwave tubes, transistors, and diodes. In integrated circuits, it has been used for the flat pack and the dual-in-line package.
Chemical Composition
 

Grade	C%	P%	S%	Mn%	Si%	Cu%	Cr%	Mo%	Ni%	Co%	Fe%
Kovar	Max 0.03	Max 0.020	Max 0.020	Max 0.50	Max 0.30	Max 0.20	Max 0.20	Max 0.20	28.5-29.5	16.8-17.8	Bal.

Specifications

Grade	UNS	Werkstoff Nr.	ASTM
Kovar	K94610	1.3981	F15

Physical Properties

Grade	Density	Melting Point
Kovar	8.17 g/cm3	1449°C

Mechanical Properties

Grade	Tensile Strength N/mm²
	Soft	1/4 Hard	1/2 Hard	3/4 Hard	Full Hard
Kovar Strip	<570	520-630	590-700	600-770	>700
Kovar Wire	<585	585-725	655-795	725-860	>860

Coefficient of Expansion

Alloy	Linear Coefficient of Thermal Expansion ā,10-6/ºC
	20-200ºC	20-300ºC	20-400ºC	20-450ºC	20-500ºC	20-600ºC	20-700ºC	20-800ºC
Kovar	5.9	5.3	5.1	5.3	6.2	7.8	9.2	10.2

Size Range: 

*Sheet---Thickness 0.1mm~40.0mm, width:≤300mm,Condition: cold rolled(hot), bright, bright annealed 

*Round Wire---Dia 0.1mm~Dia 5.0mm,Condition: cold drawn, bright, bright annealed 

*Flat Wire---Dia 0.5mm~Dia 5.0mm,length:≤1000mm,Condition:flat rolled, bright annealed 

*Bar---Dia 5.0mm~Dia 8.0mm,length:≤2000mm,Condition:cold drawn,bright, bright annealed 

Dia 8.0mm~Dia 32.0mm,length:≤2500mm,Condition:hot rolled,bright, bright annealed 

Dia 32.0mm~Dia 180.0mm,length:≤1300mm,Condition:hot forging,peeled, turned, hot treated 

*Capillary---OD 8.0mm~1.0mm,ID 0.1mm~8.0mm,length:≤2500mm,Condition: cold drawn, bright, bright annealed 

*Pipe---OD 120mm~8.0mm,ID 8.0mm~129mm,length:≤4000mm,Condition: cold drawn, bright, bright annealed