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RAIL® nc 80/20 strip

Electric Resistance Heating Alloy RAIL®-NC 80/20 (Brightray® Alloy S) Strip

RAIL®-NC80/20 (Brightray® Alloy S) Strip is an austenitic, non-magnetic Nickel-Chrome alloy. It is used at strip temperature up to 1200C.


RAIL®-NC80/20 (Brightray® Alloy S) strip has outstanding characteristics like high uniform electric resistance, excellent heat stability, strong resistance to corrosion, excellent ductility, weldability and mechanical stability. Its austenitic structure gives good toughness allowing it to be easily cold worked. It is an ideal metallic heating element material for use in high temperature industrial furnaces and electric domestic heating equipment.


Physical, Electrical & Mechanical Properties


Maximum element working temperature (in air)

1200C
Nominal composition %
Cr 20
Si 1
Fe 1 (Max)
Mn 0.4
Ni Balance
Density g/cm3 8.43
Electrical Resistivity at 20 C Ohms rinn2/m 1.10
Elongation % Min 30
Melting temperature 1400
Tensile Strength kgs/mm2 70
Creep limit (1% elongation after 1000 hours) 8.16
Kg/ mm2 - 600C 8.16
Kg/ mm2 - 800 C                   1.53
Kg/ mm2 - 1000C      0.408
Kg/ mm2 - 1200C         0.051
Workability

Good

Weldability Satisfactory
Magnetic Property Non-Magnetic

Resistance values are at 20C & for values at working temperature,
multiply by the factor Ct from the table.


C 20

100

200

300

400

500

600

700

800

900

1000

1100

Ct   1.000

 1.005

1.012

1.020

1.027

1.032

1.026

1.020

1.019

1.022

1.035

1.050


 
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