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Speciality Nickel Chromium Heating Alloys

NiCr 37:18

Alloy Description

NiCr 37:18 is a nickel-chromium-iron alloy with excellent resistance to carbonization. It is widely used in conveyor belts for industrial furnaces.

Condition of Supply

NiCr 37:18  is supplied in the following conditions:

Nominal Composition

Nickel%

Chromium%

Iron%

37

18

Balance

Specifications

British Standard

Werkstoff Nr

UNS Designation

-

1.4864

-

Size Range

10.0 mm diameter to 0.122mm diameter.
(0.3937” diameter to 0.0048” diameter)

Typical Physical Properties

Temp. Coeff. Of
Resistance Km x 10-6/°C

Specific Resistance
microhm-cm (20°C)

Density
gm/cm3

Linear Expansion
Coeff. X 10-6 /°C

360 (20-500 °C)

105

7.95

19 (20-1000°C)

Typical Tensile Strength

 

Annealed

Metric

650-750 N/mm2

NiCr 60:15

Alloy Description

NiCr 60:15 is a nickel-chromium-iron resistance alloy with heat resisting strength at high temperatures. This alloy is used in numerous domestic appliances and industrial resistors.

Condition of Supply

NiCr 60:15  is supplied in the following conditions:

Nominal Composition

Nickel%

Chromium%

Iron%

Carbon

Manganese

60

15

Balance

0.08 max

1 max

Specifications

British Standard

Werkstoff Nr

ASTM

UNS Designation

-

2.4667

B 344

N06004

Size Range

Typical Physical Properties

Temp. Coeff. Of
Resistance Km x 10-6/°C

Specific Resistance
microhm-cm (20°C)

Density
gm/cm3

Linear Expansion
Coeff. X 10-6 /°C

170 (20-500 °C)

112

8.2

17 (20-1000°C)

Typical Tensile Strength and elongation

 

Annealed

UTS

600-900 N/mm2

Elongation

>20

NiCr 80:20

Alloy Description

NiCr 80:20 is a nickel-chromium alloy that gives remarkable performance till 1200o C. It is highly recommended for resistance heater elements operating at high temperatures or running under cyclic heating and cooling conditions. It is widely used in industrial furnaces,  industrial and domestic applications, wire wound resistors and potentiometers.

Condition of Supply

NiCr 80:20  is supplied in the following conditions:

Nominal Composition

Nickel%

Chromium%

Iron%

Silicon%

Manganese

Bal

20

1 max

1-1.50

1 max

Specifications

DIN Standard

Werkstoff Nr

ASTM

UNS Designation

17470 / 17471

2.4869

B 344

N06003

Size Range

Typical Physical Properties

Temp. Coeff. Of
Resistance Km x 10-6/°C

Specific Resistance
microhm-cm (20°C)

Density
gm/cm3

Linear Expansion
Coeff. X 10-6 /°C

60  (20-1000 °C)

112 (DIN 17470)
108 (ASTM B 344)

8.30

17.0 (20-1000°C)

Typical Tensile Strength and elongation

 

Annealed

UTS

630-900 N/mm2

Elongation

15-30% (depends upon size)

Note: Other Grades of heating element and resistance alloys (including NiCr alloys) are also available. Please contact us for more information.


Courtesy of:
JLC Electromet Pvt. Ltd.,

E-153(A), Road No. 11-H,
V. K. I. A., Jaipur – 302013 (INDIA).
Telephone : 91 – 141 – 2331215, 2330375
Fax : 91 – 141 – 2330345
E-mail : jlc@jlcelectromet.com
Internet: www.jlcelectromet.com