Iron Nickel Alloy 42 Tube Sealing Structure Material For Electric Vacuum Industry

Product Details:
Place of Origin: China
Brand Name: JINXING
Certification: ISO 9001
Model Number: Alloy 42 Tube
Payment & Shipping Terms:
Minimum Order Quantity: 20kg
Price: 15~100USD
Packaging Details: Plywood case
Delivery Time: 15~30days
Payment Terms: L/C, D/P, D/A, T/T, Western Union
Supply Ability: 10000kgs/M

Detail Information

Material: Alloy 42 Hardness HB: ≤130
Yield Strength: 300 Mpa Min Tensile Strength: 500 Mpan Min
Elongation: 30% Min Surface: Pickled, Polished
High Light:

ni based superalloys


nickel based superalloys

Product Description

Alloy 42 Tube Ni42 Fe42Ni (UNS K94100 /ASTM F30) expansion alloy

Alloy42 tube is an iron nickel constant expansion alloy. It is a series of constant expansion alloys that can match soft glass and ceramics with different expansion coefficients in a given temperature range by adjusting nickel content. Its expansion coefficient and Curie point increase with the increase of nickel content. The alloy is a widely used sealing structure material in the electric vacuum industry.


  • Description

Alloy 42 belong to a controlled expansion alloy Similar called: 4J42, Nio 42, NI42 Fe42Ni (UNS K94100 /ASTM F30) (aka Pernifer 402, NILO 424, Glass Seal 421).


Characteristics: The expansion coefficient is matched with the material to be sealed, and the plasticity is good. Easy to process, no phase change occurs in the working temperature range, good electrical conductivity, thermal conductivity, and high mechanical strength and good processability. The fixed expansion alloys used for sealing include Fe-Ni, Fe-Ni-Co, Fe-Ni-Cr, Ni-Co, as well as oxygen-free copper, tungsten, molybdenum and alloys thereof, composite materials and the like.



Alloy Type Trade Name UNS No. Standard Forms
Rod Strip Wire Sheet
Ni29Co17 Kovar K94610 ASTM F15 yes yes yes yes
FeNi36 Invar 36 K93603 ASTM 1684 yes yes yes yes
FeNi32Co5 Super-invar 32-5 K93500 ASTM F1684 yes yes yes yes
FeNi33Co17 Ni33Co17 YB/T5234-94 yes yes yes yes
FeNi27Co25 Ceramvar F1466 ASTM F1466 yes yes yes yes
Fe28Cr Alloy 27 K92801 ASTM F256 yes yes yes  
Fe42Ni6Cr Alloy 426 K94760 ASTM F31 yes yes yes  
Fe42Ni Alloy 42 K94100 ASTM F30 yes yes yes yes 
Fe45Ni Alloy45 YB/5235-2005 yes yes yes  
Fe46Ni Alloy46 K94600 ASTM F30 yes yes yes yes
Fe50Ni Alloy52 K95050 ASTM F30 yes yes yes yes


Iron Nickel Alloy 42 Tube Sealing Structure Material For Electric Vacuum Industry 0

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