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Nichrome Alloy Ni70Cr30

Nichrome Alloy Ni70Cr30

Ni70Cr30(Common Name:Ni70Cr30, Nikrothal 70, N7, HAI-NiCr 70, Chromel 70/30, Resistohm 70, Balco,Tophet 30,Cronix 70,Alloy 710,Stablohm 710)Ni70Cr30 is a nickel-chromium alloy (NiCr alloy) characteriz

Hangzhou Ualloy Material Co.,Ltd is one of the best nichrome alloy ni70cr30 manufacturers and suppliers in China, welcome to buy discount and low price cr30ni70, n70, nikrothal 70, resistohm 70, alloy 710 from us, and also welcome to check the price and quotation with our factory.

Ni70Cr30

(Common Name:Ni70Cr30, Nikrothal 70, N7, HAI-NiCr 70, Chromel 70/30, Resistohm 70, Balco,Tophet 30,Cronix 70,Alloy 710,Stablohm 710)

Ni70Cr30 is a nickel-chromium alloy (NiCr alloy) characterized byHigh resistivity, good oxidation resistance,very good form stability,good ductility and excellent weldability. It is suitable for use at temperatures up to 1250°C.

Typical applications for Ni70Cr30 are used in electrical heating elements in industrial furnace,and well suited for reducing atmospheres.
Normal composition%

C

P

S

Mn

Si

Cr

Ni

Al

Fe

Other

Max

0.05

0.02

0.015

0.60

0.75~1.60

28.0~31.0

Bal.

Max 0.50

Max 1.0

-

Typical Mechanical properties(1.0mm)

Yield strength

Tensile Strength

Elongation

Mpa

Mpa

%

430

820

30

Typical Physical properties

Density (g/cm3)

8.2

Electrical resistivity at 20℃(Ωmm2/m)

1.18

Conductivity coefficient at 20℃ (WmK)

14


Coefficient of thermal expansion

Temperature

Coefficient of Thermal Expansion x10-6/℃

20 ℃- 1000℃

17


Specific heat capacity

Temperature

20℃

J/gK

0.46


Melting point (℃)

1380

Max continuous operating temperature in air (℃)

1250

Magnetic properties

non-magnetic

Temperature Factors Of Electrical Resistivity

20℃

100℃

200℃

300℃

400℃

500℃

600℃

1

1.007

1.016

1.028

1.038

1.044

1.036

700℃

800℃

900℃

1000℃

1100℃

1200℃

1300℃

1.03

1.028

1.029

1.033

1.037

1.043

-

Style of supply

Alloys Name

Type

Dimension

Ni70Cr30W

Wire

D=0.03mm~8mm

Ni70Cr30R

Ribbon

W=0.4~40

T=0.03~2.9mm

Ni70Cr30S

Strip

W=8~250mm

T=0.1~3.0

Ni70Cr30F

Foil

W=6~120mm

T=0.003~0.1

Ni70Cr30B

Bar

Dia=8~100mm

L=50~1000

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