sealing steel 4J33 4J29 4J42 steel products

FOB Reference Price:Get Latest Price
$38.00 - $55.00 / Kilograms | 100 Kilogram/Kilograms (Min. Order)
Lead Time:
Quantity(Kilograms) 1 - 100 101 - 1000 >1000
Est. Time(days) 60 60 Negotiable
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Overview
Quick Details
Place of Origin:
China
Type:
Nickel Strip
Application:
vacuum electronic
Grade:
4J33 4J29 4J42
Ni (Min):
29.10
Resistance (μΩ.m):
46
Powder Or Not:
Not Powder
Ultimate Strength (≥ MPa):
520-780
Elongation (≥ %):
24
Model Number:
as annealed
Brand Name:
DLDT
delivery condition:
cold rolling, annealed
Supply Ability
Supply Ability:
2000000 Ton/Tons per Year
Packaging & Delivery
Packaging Details
suitable packing for sea delivery
Port
Dalian port
Lead Time :
Quantity(Kilograms) 1 - 100 101 - 1000 >1000
Est. Time(days) 60 60 To be negotiated
Product Description

 Characteristics:

 

4J33 alloy has a thermal expansion coefficien similar to porcelain. It's used for vacuum electronic component.

 

4J42 and 4J 29 alloys have a thermal expansion coefficient similiar to glass and easily form compact oxide film necessary for the sealing.

 

Typical chemical composition:

GradeCSiMnPSNiCoFe
4J330.0300.120.260.0060.00533.1014.50Bal
4J290.0150.120.250.0060.00529.1017.30Bal
4J420.0200.200.500.006

0.005

41.700.05Bal

 

Physical Properties

GradeDensity (g/cm)

Young's  Modulus

(MPa)

Mean Coefficient of Thermal Expansion(10-6/℃)

Curie point        (℃)

Electrical resistivity

(μΩ.cm)

Specific heat (J/kg.℃)Thermal conductivity (W/m.
4J338.16175x103

6.4(20-400)

6.9(20-500)

44044(20℃)39818.6
4J298.17165x103

5.0(20-400)

5.2(20-450)

43046(20℃)41820.3
4J428.14150x103

4.8(20-300)

6.9(20-450)

35062(20℃)176.815.5

 

Mechanical properties

GradeStatuaYield strength(MPa)Tensile strength(Mpa)Elongation(%)Hardness(HV)
4J33Cold-rolling6987855235
 anealed32454022152
4J29cold-rolling 6957805230
 annealed31552024148
4J42cold-rolling6427408215
 annealed27246029135

 

 

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