Invar 36 Introduction to Characteristics and Execution Standards

Invar 36 Introduction to Characteristics and Execution Standards

Common Trade Names: Invar 36, Nilo 36.

Invar 36 is a nickel-iron, low-expansion alloy containing 36% nickel. It maintains nearly constant dimensions over the range of normal atmospheric temperatures, and has a low coefficient of expansion from cryogenic temperatures to about 500°F. The alloy also retains good strength and toughness at cryogenic temperatures.

Available Product Forms:Pipe, tube, fitting, flange, sheet, strip, plate, round bar, flat bar, fastener, forging stock, hexagon and wire;

Specifications:UNS K93600, UNS K93603

Werkstoff 1.3912、EN 1.3912、ASTM F 1684 - 06、AFNOR NF A54-301 (chemistry only);

Invar 36 Chemical Composition

Limiting Chemical Composition, % by Weight

Ni ……………………35-37;

Fe …………………..Balance;

Mo ………………….0.5 Max.

C ……………………0.1 Max.

Cu ………………….0.5 Max.

Mn …………………0.6 Max.

Si …………………..0.35 Max;

P ……………………0.025 Max;

S ……………………0.025 Max;

Cr …………………..0.5 Max.