Nickel Chromium 70/30 Wire - Heanjia Super-metals Co., Ltd.

Resistance Heating Wire Industrial News

Nickel Chromium 70/30 Wire

Nickel Chromium 70/30 Wire is a nickel-chromium-iron resistance alloy with heat resisting strength at high temperatures.

Property of Nickel Chromium 70/30 Wire:

Stable performance; Anti-oxidation; Corrosion resistance; High temperature stability; Excellent coil-forming ability; Uniform and beautiful surface condition without spots.

Nominal Composition

Nickel%	Chromium%	Iron%	Carbon	Manganese
Bal	30	1 max	0.1max	1 max

Physical property of ickel Chromium 70/30 Wire:

Components %	Ni	Cushion
	Cr	28.031.0
	Fe	≤1.0
Components maximum use temperature		1250
Melting point		1380
Density g/cm³		8.10
Resistivity μΩ·m,20		1.18±0.05
Extension rate%		≥20
Than hot J/g.		0.461
Heat conduction coefficient KJ/m.h		45.2
Linear expansion coefficient a×10^-6/201000		17.0
Relying organizations		Austenitic
Magnetic		Non-magnetic

Applications

1. Heating Elements

mainly use nichrome wire to make coils for heating elements.

2. Hot-Wire Cutter

It cuts through materials like polystyrene foam, somewhat like a wire cheese cutter. The heat does the cutting, and makes a smoother and more even cut than a saw or knife could achieve.

3. High-Temperatures Uses

Because of nichrome wire's strength at extremely high temperatures and its flexibility, pottery enthusiasts use it to assemble backyard kilns and to hold the shape of pottery items while they bake.

4. Igniters

Nichrome Wire heats up rapidly with even a small amount of electricity; it makes safe igniters (sometimes called electric matches) to light the fuses of fireworks and model rockets.

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