Super-Invar Low Expansion Alloy Strip for Precision Instrument

• Customization: Available
• Classification: Low Expansion Alloy
• Density: 8.1
• Model NO.: 4j32
• Resisivity: 0.77
• Curie Point: 220
• State: Soft
• Brand: 4j32
• Chemical Composition: Feni32co4
• Sample: Free
• Packing: Standard
• Surface: Bright
• Color: Silver White
• Transport Package: Export Packing
• Specification: Can discuss
• Trademark: HUONA
• Origin: Shanghai
• HS Code: 72269990
• Production Capacity: 50 Ton/Month

Product Description

4j32 Low Expansion Alloy Strip Super-Invar Alloy Strip

4 j32 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.

Chemical Composition in %, Invar

brand	Chemical composition
	Ni	Mn	Co	Cu	Fe	C	P	Si	S
						≤
4j32	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.