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Invar 42 sheet, strip

Ni42 wire, rod, bar Sheet, strip


Grade analogue W. Nr. Aisi Uns En Order
42N EP318 1.3917 K94200 Ni42 Buy from stock, view availability

Buy Invar sheet, strip at a bargain price

You can easily buy Invar sheet, strip by connecting us with a convenient way to you. Phone numbers, e-mail addresses of the closest company’s offices are located in section «Contacts». Order a service «Call-back» and our manager will help you to choose products that will fit your individual requirements. A quality is guaranteed by rigorous technology compliance of manufacture. Our managers are always ready to answer any questions and to give a knowledgeable assistance. A large assortment will not leave you without a choice. There is an affordable Invar sheet, strip price from «Auremo» Invar sheet, strip supplier.

Technical characteristics

A grade Ni42 relates to a group of precision alloys with a defined linear expansion thermal coefficient. TCLE of Invar in a range of temperatures -70º — +340ºC is not higher than 4.5 — 5.5x10-6/C°). Alloy is used in electrovacuum equipment. It differs with an accuracy of chemical composition, a preciseness of manufacture, processability, and absence of residual elements. An actual category of materials contains highly-alloyed alloys. Precision alloys are manufactured on a basis of iron, nickel, copper, niobium, cobalt. Marking Ni42 means that alloy contains about 42% of nickel.

Percentage composition:

Ni Cu P Mn Si C Fe S
41.5 — 43 ≤0.1 ≤0.015 ≤ 0.4 ≤ 0.3 ≤0.03 56.14 — 58.5 ≤0.015

A name of this alloy originates from a word «invariant» which means «unchanged» and corresponds a truth because TCLE of Invar almost does not change in a temperature range from -70º up to +340ºC. Sheet and a strip, made of this material, possess unique physical, mechanical characteristics (magnetic, elastic, heating, electrical). With an appearance of materials of new generation, there has become a possibility to improve many technological processes and to provide a long-term and reliable work of a whole complex of equipment in a wide temperature range.

Physical characteristics

V/(m/degree) Degree MPa 1/Degree Ohm-m J/(kg/degree) kg/m3
  20 1,42   580   8200

Mechanical features at a temperature 20 °C.

Product mix KCU Thickness d5 y sv sT Heat treating F.e.
Hammer-hardened strip, GOST 14 080−78   0,8−1.5     930      


Type Description
limitedly weldable welding is possible at heating to 100−120°С and last heat treating
hardly weldable in order to obtain a qualitative welded joints, it is necessary to perform the following operations: before welding to heat details up to 200−300°C, heat treating (annealing) after welding.
weldable without stint welding is done without further heat treating or previous heating.

Mechanical characteristics

Description Identification
Short resistance to rupture [MPa] sv
Flow limit (proportional limit load) for permanent change of form [MPa] sT
Percent elongation at fracture [ % ] d5
Contraction ratio [%] y
Impact hardness [ kJ/m2] KCU
Brinell hardness [MPa] HB

Physical characteristics

Description Identification
Modulus of elasticity of first genus [MPa] E
Heating capacity of material (or coefficient of conductivity for heat) [V/(m/deg)] l
Required temperature for obtaining of actual features, [Degree] T
Linear expansion thermal coefficient [1/Degree] (range of temperatures 20°С) a
Electrical unit-area resistance [Ohm-m] R
Density of an actual material, [kg/m3] r
Specific heat of the material [J/(kg/deg)] (range of temperature 20°С) C

Invar sheet, strip supplier

«Auremo» company proposes to buy Invar sheet, strip on the most favorable conditions. There is a wide range of goods of a high quality in stock. Invar sheet, strip price depends on order quantity and additional conditions of supply. If you buy products by wholesale, you will be given special discounts. An availability of products and efficiency of delivery are conditioned by a fact that we have offices in Moscow, St. Petersburg and cities of Central Europe. There is the best Invar sheet, strip price from «Auremo» Invar sheet, strip supplier.