Product Description

SUPER-INVAR 32-5 LOW EXPASION ALLOY ASTM F1684

Super Invar 32-5 is Iron-Nickel-Cobalt alloy, consisting of 32% nickel, 5% cobalt, and balance iron. Super Invar Alloy exhibits minimum thermal expansion at room temperatures (one half of Invar 36 Alloy), as well as thermal expansion properties less than that of Invar 36 Alloy in the 67/203°F (-55/95°C) temperature range.

The alloy is first melted using Vacuum Induction Melting (VIM) techniques. A secondary melt operation, Electro Slag Remelt (ESR), is then employed to further remove impurities and improve overall homogeneity.

Commercial Grade	Super-invar 32-5
Material	Iron-Nickel-Cobalt alloy
Specification	ASTM F1684
Thermal Expansion,（30-100℃）/μ m/m•°C	0.3
Application	Seals

Forms Manufactured

ROD	DIA≤50MM
Strip/Sheet	T≥0.015MM，Width≤1500MM
Plate	T≥3.0MM，Width≤2500MM

Chemical Composition，%

Ni

Co

Mn

Si

C

Al

Mg

Zr

Ti

Cr

P

S

Fe

32.0

5.0

≤0.6

≤0.25

≤0.05

≤0.10

≤0.10

≤0.10

≤0.10

≤0.25

≤0.015

≤0.015

Bal

Physical properties

Electrical resistivity ,μΩ.m	0.77
Density,g/cm3	8.15
Curie temperature,ºC	230
melting Point,ºC	1427

Coefficient of Thermal Expansion

Temperature Range,℃	Thermal Expansion,μ m/m•°C
30 to 100	1.0 Max
-18 to 93	0.9Max

 Typical Coefficient of Thermal Expansion，μ m/m•°C

Temperature Range,℃	Thermal Expansion,μ m/m•°C
30-100	0.4
-18 to 93	0.6

Typical Mechanical Properties

Tensile Strength Rm MPa	Yield Strength Rp0.2 MPa	Elongation A/%	Reduction Section Z,%	Hardness HV
448	286	44	79	168

 

Important Notice

1. Disclaimer

Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only.

2. Sample Policy

Super-Invar 32-5 are available in many shapes and dimensions,supplying semi-finished products in forms of Strip,plate & Rods.The samples are big enough (typically about 200mm in length for strip or plate) to get an understanding of the material characteristics, meanwhile custom-made sample order available ! small quantity accepted.

3. Payment Terms

30% T/T in advance ,balance before shippment.

4. Who you talking to

Mr. Paul (Designation :Foreign Trade Manager)
WeChat & Phone No: +86 (0)13669288752 (24 Hours)
Skype: alloynickel
Tel: +86 29 3366 9103 ( 08:30-17:30,Beijing Time. Mr.Paul ,Excellent Engilsh & Mandarin)
Fax: +86 29 3369 8670
Http:// www.alloynickel.com 

                                                                              

Payment Terms︰ T/T L/C

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