Nickel Chromium/chrome Nichrome Alloy Ni80cr20 Nicr 80/20 70/30 Ni70cr30 Ni60cr15 Ni80 Ni60 Ribbon Flat Strip for Industry Furnace Heating Element

• Product Type: Strip
• Material: nickel Chromium Alloy
• Carbon Content: Low Carbon
• PCD: -
• ET: -
• Hole: -
• Model NO.: NiCr 70/30
• Resistivity: 1.04-1.18
• Density: 7.9-8.4 g/cm3
• thickness: 0.005mm Min.
• Width: 0.5mm Min.
• Surface: Bright
• sample: accepted small order
• Condition: Soft Annealed
• Max Continuous temper.: 1200
• Elongation: >20%
• Transport Package: Reel/Coil, Waterproof Paper, Wooden Case
• Specification: Rohs
• Trademark: TANKII
• Origin: China
• HS Code: 7506200000
• Production Capacity: 5000 Tons/Year

Product Description

Resistance Heater Alloy Nicr35/20 80/20 60/15 70/30 Nichrome Strip

Ni70Cr30 is an austenitic nickel-chromium alloy suitable for temperature applications up to 1250°C. High chromium content (30% in average) provides very good life time, especially in the furnace applications. Ni70Cr30 is characterized by high resistivity, good oxidation resistance, good ductility after use and excellent weldability.

Ni70Cr30 is used for electric heating elements in industrial furnaces. Typical applications are: electric and enamelling furnaces, storage heaters, furnaces and kilns with a changing atmospheres.
 

Typical Mechanical properties(1.0mm)

1.  Elongation:               30%
2.  Yield Strength:         420Mpa
3.  Tensile Strength:     810Mpa

Nichrome strip

Performance\ material		Cr10Ni90	Cr20Ni80	Cr30Ni70	Cr15Ni60	Cr20Ni35	Cr20Ni30
Composition	Ni	90	Rest	Rest	55.0~61.0	34.0~37.0	30.0~34.0
	Cr	10	20.0~23.0	28.0~31.0	15.0~18.0	18.0~21.0	18.0~21.0
	Fe		≤1.0	≤1.0	Rest	Rest	Rest
Maximum temperatureºC		1300	1200	1250	1150	1100	1100
Meltiing point ºC		1400	1400	1380	1390	1390	1390
Density g/cm3		8.7	8.4	8.1	8.2	7.9	7.9
Resistivity  at 20ºC((μΩ·m)			1.09±0.05	1.18±0.05	1.12±0.05	1.00±0.05	1.04±0.05
Elongation at rupture		≥20	≥20	≥20	≥20	≥20	≥20
Specific heat J/g.ºC			0.44	0.461	0.494	0.5	0.5
Thermal conductivity KJ/m.hºC			60.3	45.2	45.2	43.8	43.8
Coefficient of lines expansion a×10-6/ (20~1000ºC)			18	17	17	19	19
Micrographic structure			Austenite	Austenite	Austenite	Austenite	Austenite
Magnetic properties			Non-magnetic	Non-magnetic	Non-magnetic	Weak magnetic	Weak magnetic

Resistance Wires
RW30	W.Nr 1.4864	Nickel 37%, Chrome 18%, Iron 45%
RW41	UNS N07041	Nickel 50%, Chrome 19%, Cobalt 11%, Molybdenum 10%, Titanium 3%
RW45	W.Nr 2.0842	Nickel 45%, Copper 55%
RW60	W.Nr 2.4867	Nickel 60%, Chrome 16%, Iron 24%
RW60	UNS NO6004	Nickel 60%, Chrome 16%, Iron 24%
RW80	W.Nr 2.4869	Nickel 80%, Chrome 20%
RW80	UNS NO6003	Nickel 80%, Chrome 20%
RW125	W.Nr 1.4725	Iron BAL, Chrome 19%, Aluminium 3%
RW145	W.Nr 1.4767	Iron BAL, Chrome 20%, Aluminium 5%
RW155		Iron BAL, Chrome 27%, Aluminium 7%, Molybdenum 2%