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ASTM F15 Kovar Alloy Strip Rod Pipe Stable Expansion Coefficient

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ASTM F15 Kovar Alloy Strip Rod Pipe Stable Expansion Coefficient

Brand Name : KAIXIN

Model Number : KX-Alloy Kovar

Certification : ISO9001:2015

Place of Origin : China

MOQ : 200KG

Price : To negotiate

Payment Terms : T/T, L/C

Supply Ability : 50~80TONS per MONTH

Delivery Time : 45~60days

Packaging Details : Wooden Box, size as per guests' request

Shape : Strip,Rod,Pipe,

Alloy Type : Fe-Ni-Co Glass Sealing Alloy

Raw Materials : NI28.5-29.5%,CO16.8-17.8%

Executive standard : ASTM F15

Delivery State : Soft State

Application : Electrovacuum component

Features : High Curie point and has good low temperature tissue stability

Size : Negotiable

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ASTM F15 Kovar Alloy Strip Rod Pipe Stable expansion coefficient and excellent processing performance

Product Description and Application

Kovar is also known as Nilo k,Dilver,Pernifer 2918,W.N 1.3981,UNS K94610,FeNi29Co17,29HK (Russian),ASTM F15, 4J29 (China)

Kovar has linear expansion coefficient near borosilicate glass at 20 ~ 450℃ with high Curie point and excellent stability of low temperature arrangement. The oxide film of the alloy is fine and can be well moistened by glass. And not react effectively with mercurynot, which is suitable for use in mercury discharge surface. It is the primary sealing structure data of electric vacuum device. It is used to make Fe-Ni-Co alloy strip, rod, plate and pipe with hard glass or ceramic matching sealing. It is mainly used in vacuum electronics, power electronics and other professional devices.

Process Performance and Requirements

  • Product Fusion Process

Vacuum Induction Furnace(VIM) and Electroslag Remelting Furnace(ESR)

  • Product Chemical Composition

Alloy Grade

Chemical Composition(Mass Fraction)%
C P S Mn Si Cu Cr Mo Ni
 Co
 Fe
Not more than
Kovar Alloy 0.03 0.020 0.020 0.50 0.30 0.20 0.20 0.20 28.5~29.5 16.8~17.8 Rem

  • Product Average Coefficient of Linear Expansion

Alloy Grade
 Sample Heat Treatment Institution
 Average Coefficient of Linear Expansion,1/℃
20℃~400℃ 20℃~450℃
Kovar Alloy It is heated to 900 ° C±20 ° C in vacuum or hydrogen gas atmosphere, kept for 1 hour, then heated to 1100° C±20 ° C, kept for 15 minutes and cooled to less than 200 ° C at a speed of no more than 5 ° C/min 4.6 ~ 5.2 5.1 ~ 5.5

  • Product Mechanical Property

Shape Tensile Strength,MPa
Soft State(S) 1/4 Hard State(H1/4) 1/2 Hard State(H1/2) 3/4 Hard State(H3/4) Hard State(H)
Wire ≤ 585 585 ~ 725 655 ~ 795 725 ~ 860 ≥ 860
Strip ≤ 570 520 ~ 630 590 ~ 700 600 ~ 770 ≥ 700

  • Product Delivery State

Alloy Grade Delivery State
Soft State(S) 1/4 Hard State(H1/4) 1/2 Hard State(H1/2) 3/4 Hard State(H3/4) Hard State(H) Drawing Quality(DQ)
Kovar Alloy ✓ ✓ ✓ ✓ ✓ ✓

  • Kovar Alloy product image display

ASTM F15 Kovar Alloy Strip Rod Pipe Stable Expansion CoefficientASTM F15 Kovar Alloy Strip Rod Pipe Stable Expansion Coefficient

  • Kovar Alloy Professional Customization

Cold-drawn Wire ¢0.3~¢18mm(Delivery in rolls or trays)
Hot-Rolling Wire ¢5.5~¢20mm(Delivery in rolls)
Strip thickness 0.1~4.5*width 6~350mm(Supply in rolls or straight strips)
Smooth Forged Rod on a Lathe

¢60~350mm,L800-2500mm
Hot-rolled Burnishing ¢20~80mm,L1000-5000mm
Cold Drawn and Burnishing ¢2.5~18mm,L1000-8000mm
Seamless Tube ¢1~275mm,wall thickness 0.2~30,L1000-8000mm


Product Tags:

ASTM F15 Kovar Alloy Strip

      

UNS K94610 Kovar Alloy Rod

      
ASTM F15 Kovar Alloy Strip Rod Pipe Stable Expansion Coefficient Manufactures

ASTM F15 Kovar Alloy Strip Rod Pipe Stable Expansion Coefficient Images

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