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Shanghai Tankii Alloy Material Co.,Ltd
Shanghai Tankii Alloy Material Co.,Ltd
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4J29 Silver Alloy Casting Alloy Suit In Sealing Glass ISO 9001 / RoHS

Product Details

Place of Origin: China

Brand Name: Sealing Alloy 4J29

Certification: ISO 9001 and RoHS

Model Number: Kovar / 29НК / 4J29

Payment & Shipping Terms

Minimum Order Quantity: 10KG

Price: USD 30~50/ kg

Packaging Details: Waterproof paper, Carton and Wooden Case

Delivery Time: 3-7 weeks

Payment Terms: T/T, Western Union, L/C, Paypal

Supply Ability: 1000KG per month

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Specifications
Highlight:

soft magnetic alloy

,

precision tubing

Shape:
Wire
Condition:
Soft
Standard:
YB/T5231-2005 / ГОСТ 14080-78
Color:
Silver
Weight Of Coil:
1~45 KG
Surface:
Bright
Shape:
Wire
Condition:
Soft
Standard:
YB/T5231-2005 / ГОСТ 14080-78
Color:
Silver
Weight Of Coil:
1~45 KG
Surface:
Bright
Description
4J29 Silver Alloy Casting Alloy Suit In Sealing Glass ISO 9001 / RoHS

 

 

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

 

 

 

 

 

4J29 Silver Alloy Casting Alloy Suit In Sealing Glass ISO 9001 / RoHS 0

 

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

Looking forward to your inquiry!

 

 

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