Kovar Alloy - Strip of Sealing Alloy 4J29 for Integrated Circuit Framework

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Shanghai Tankii Alloy Material Co.,Ltd

City: shanghai

Province/State:shanghai

Country/Region:china

Tel:86-21-56110178

Contact Person:
Mr.Martin Lee View Contact Details

Kovar Alloy - Strip of Sealing Alloy 4J29 for Integrated Circuit Framework

Brand Name	Sealing Alloy 4J29
Model Number	Kovar / 29НК / 4J29
Certification	ISO 9001 and RoHS
Place of Origin	China
Minimum Order Quantity	10KG
Price	USD 30~50/ kg
Payment Terms	T/T, Western Union, L/C, Paypal
Supply Ability	30000KG per month
Delivery Time	4-8 weeks
Packaging Details	Waterproof paper, Carton and Wooden Case
Shape	Strip, Foil, Sheet, Wire
Condition	Bright/ Oxidized; Soft/ Hard
Standard	YB/T5231-2005 / ГОСТ 14080-78
Color	Silver
Weight of coil	1~45 KG

Detailed Product Description

Kovar Alloy - Strip of Sealing Alloy 4J29 for Integrated Circuit Framework

Application: Vacuum device main seal structure material

Feature: At 20 to 450 degrees and having a linear expansion coefficient similar borosilicate hard glass, high Curie point, has good low temperature stability of the organization. Suitable for use in mercury discharge instrument. Rectangular hysteresis loop.

Specifications

Grade	4J29- Strip
Thickness	0.01~5mm
Width	4~250mm
Weight of coil	2-50 kgs
Condition	Soft/ Hard; Bright/ Oxidized

Chemical composition(%)

Grade	C	Si	Mn	P	S	Ni	Cu	Cr	Mo	Co	Fe
4J29	≤0.03	≤ 0.3	≤ 0.5	≤0.02	≤0.02	28.5~29.5	≤ 0.2	≤0.2	≤0.2	16.8~17.8	Bal.

Physical properties

Density (g/cm³): 8.17
Elastic Modulus (MPa): 165*10³
Mean Coefficient of Thermal Expansion (10^-6/℃): 5.0 (20~400℃); 5.2 (20~450℃)
Curie point (℃): 430
Electrical resistivity (μΩ*cm): 46 (20℃)
Specific heat (J/kg*℃): 418
Thermal conductivity ( W/m. ℃): 20.3

Mechanical properties

		Yield Strength (Mpa)	Tensile Strength (Mpa)	Elongation, %	Hardness, HV
4J29	Cold-rolling	695	780	5	230
4J29	As annealed	315	520	24	148

Product Tags: precision tubing kovar alloy

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