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48 Alloy

48 Alloy48 Alloy48 Alloy48 Alloy

Product Introduction

48 ALLOY is A controlled expansion alloy, consisting of 48% Nickel, balance Iron; used in a variety of electronic application, especially for glass and ceramic seals.
Forms: Sheet/Plate, Bar/Rod/Wire/Coil,Capillary/Pipe/Tube

Product details

Description

48 ALLOY is A controlled expansion alloy, consisting of 48% Nickel, balance Iron; used in a variety of electronic application, especially for glass and ceramic seals.

Application

Glass to metal seals for variety of electronic tubes and hermetic devices.

parameter

Cross Reference:

Russia USA UK France ISO
H47X Fe-Ni alloy 48 N48 N485/N48 FeNi48

Typical chemistry:

C P S Mn Si Ni Fe
0.05 0.020 0.020 0.40 0.30 48.0---51.0 Balance

Typical Average Coefficient of Linear Expansion:

30-100℃ 30-200℃ 30-300℃ 30-400℃ 30-500℃ 30-600℃ 30-700℃
9.4 9.4 8.8 8.2-9.2 9.4 10.4 11.3

Typical Physical Properties:

Density lb/cu in 0.298
Specific Gravity   8.25
Curie Temp °F 880
°C 471
Melting Point °F 2600
°C 1427
Electrical Resistivity Micro-ohm-cm 49
ohm-cir mil/ft 290
thermal Conductivity W/cm °C 0.13
BTU-in/sq. ft-hr- 90
Specific Heat Cal/g- °C 0.12
BTU/lbm- °F 0.12
Thermal Expansion ppm / °F (75°F to 842°F) 5.0
ppm / °C (25°C to 450°F) 9.0

Typical Mechanical Properties :

Elongation % in 2 in. 30
Typical Hardness Ann Rockwell HRB 80
Tensile Strength ksi 79
MPa 545
Yield Strength ksi 36
MPa 248
Modules of Elasticity ksi 23
MPa 159

Size Range

Sheet Thickness:0.10mm~3.50mm, width: ≤300mm
Plate Thickness:3.5mm~40.0mm, width: ≤500mm
Round wire Thickness:0.10mm~5.0mm
Flat Wire Dia 0.5mm~Dia 5.0mm, length≤1000
Rod Dia 5.0mm~Dia 8.0mm, length≤2000
Dia 8.0mm~Dia 32.0mm, length≤2500
Dia 32.0mm~Dia180.0mm, length≤1000
Capillary OD 8.0mm~1.0mm,ID 0.1~8.0 length≤2500
Pipe OD 120mm~8.0mm,ID 8.0~129 length≤4000

Condition: (With max tolerance) cold rolled, cold drawn, hot rolled , hot forging ,peeled turned ,bright ,bright annealed

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