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Stable Expansion Coefficient ASTM F15 Nilo K Kovar Alloy Pipe Ni29Co18 Tube

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Stable Expansion Coefficient ASTM F15 Nilo K Kovar Alloy Pipe Ni29Co18 Tube

Brand Name : liangru

Model Number : Alloy Kovar tube

Certification : ISO9001:2015

Place of Origin : China

MOQ : 200KG

Price : To negotiate

Payment Terms : T/T, L/C

Supply Ability : 50~80 TONS per MONTH

Delivery Time : 45~60days

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

Features : High Curie Point And Has Good Low Temperature Tissue Stability

Shape : Wire,Strip,Rod,Tube,Plate

Alloy Type : Fe-Ni-Co Glass Sealing Alloy

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

Executive Standard : ASTM F15 Kovar Tube

Delivery Status : Soft State

Application : Electrovacuum Component

Size : Negotiable

Density : 8.3 G/cm3

Melting Point : 1425-1450°C (2597-2642°F)

Modulus Of Elasticity : 200 GPa (29 X 106 Psi)

Name : Kovar Alloy Tube

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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
4J29 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℃
Nilo K 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)
Nilo K ✓ ✓ ✓ ✓ ✓ ✓

  • 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

Stable Expansion Coefficient ASTM F15 Nilo K Kovar Alloy Pipe Ni29Co18 Tube


Product Tags:

Ni29Co18 Kovar Alloy

      

F15 Kovar Alloy

      

Nilo K kovar pipe

      
Quality Stable Expansion Coefficient ASTM F15 Nilo K Kovar Alloy Pipe Ni29Co18 Tube for sale

Stable Expansion Coefficient ASTM F15 Nilo K Kovar Alloy Pipe Ni29Co18 Tube Images

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