Super-Nilvar Alloy Tube Low Expansion Alloy

• Customization: Available
• Classification: Low Expansion Alloy
• Density: 8.1
• Model NO.: Super-Nilvar
• Resisivity: 0.77
• Curie Point: 220
• State: Soft
• Brand: Super-Nilvar
• Chemical Composition: Feni32co4
• Transport Package: Export Packing
• Specification: Can discuss
• Trademark: Huona
• Origin: China
• HS Code: 7505220000
• Production Capacity: 50 Ton/Month

Product Description

Super-Nilvar Low Expansion Alloy tube
 

Product Description

Super-Nilvar is also called the Super - Invar alloy.In 60 ~ 80 temperature range, low expansion coefficient, the alloy is mainly used in the manufacture of requirements in the environmental temperature change range size high precision instrument parts.

Application and special requirements
Super-Nilvar alloy is typical of low expansion alloy, via air factory use for a long time, stable performance.Mainly used in the manufacture of highly accurate within the scope of environmental temperature change size precision components.In use should be strictly controlled heat treatment process and processing technology, according to the using temperature must be strictly check the organization stability.

Chemical Composition in %, Invar

brand	Chemical composition
	Ni	Mn	Co	Cu	Fe	C	P	Si	S
						≤
Super-Nilvar	31.5~33.0	0.20~0.60	3.2~4.2	0.4~0~0.80	Bal	0.05	0.02	0.02	0.02

 

Basic physical constants and mechanical properties of the alloy:

Density: γ = 8,1 g / cm3;
Electric resistivity: ρ = 0,77 ohm mm2 ? / m;
The temperature of the Curie point: Θs = 220 ° C;
 

Typical expansion character(10 -6 / ºC )
Temperature range	20~60	20~50	20~100	20~150	20~200	20~250	20~300	20~400	20~500	20~600
Expansion coefficient	-0.90	0.5	0.9	1.4	2.0	3.2	4.9	7.7	9.6	10.8

 

Varieties		Steel type      Specifications mm	Precision alloy	Resistance Alloys for electrical heating	Super alloy	Welding wire	Corrosion resistant alloy
Rods	hot rolling rods	Φ8~38mm	available		available		available
	Cold-drawn rods	≤50mm	available		available		available
	Forged rods	Φ38~350mm	available		available		available
Wires	Round wires	Φ0.3~8mm	available	available	available	available	available
	Non-circle wires	Negotiation	available		available		available
Strips	Cold rolling	0.15~4×200mm	available	available	available		available
	Hot rolling	4~22×200mm	available	available	available		available
Plates	Cold rolling	0.5~4×1000×2000mm	available		available		available
	Hot rolling	4~22×1000×2000mm	available		available		available
tubes		Φ4~63×0.5~5mm			available		available
Executive standard: GB, GJB, HB, YB, ASTM, AMSE, negotiation and so on.