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4J29 Silver Alloy Casting Alloy Suit In Sealing Glass ISO 9001 / RoHS

Shanghai Tankii Alloy Material Co.,Ltd
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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

4J29 Silver Alloy Casting Alloy Suit In Sealing Glass ISO 9001 / RoHS

Brand Name : Sealing Alloy 4J29
Model Number : Kovar / 29НК / 4J29
Certification : ISO 9001 and RoHS
Place of Origin : China
MOQ : 10KG
Price : USD 30~50/ kg
Payment Terms : T/T, Western Union, L/C, Paypal
Supply Ability : 1000KG per month
Delivery Time : 3-7 weeks
Packaging Details : Waterproof paper, Carton and Wooden Case
Shape : Wire
Condition : Soft
Standard : YB/T5231-2005 / ГОСТ 14080-78
Color : Silver
Weight of coil : 1~45 KG
Surface : Bright
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Soft Kovar Alloy Wire 4J29 for Sealing Glass ISO 9001 / RoHS


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

As annealed

315

520

24

148



Pls contact with us, if you have questions! zlz@tankii.com(Primary mailbox)

Looking forward to your inquiry!



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