Elgiloy (40КХНМ)

High Elastic Alloy for Elastic Component

Elgiloy is a high elastic alloy, non-magnetic, corrosion-resistant, high elasticity, high strength and good fatigue resistance. It mainly produces various instrument springs and other elastic components working below 400℃.

Equivalent Grades

GB	ГОСТ	ASTM	UNS	DIN	W.Nr.	NF	BS	JIS	SS
3J21	40КХНМ	Elgiloy	R30003	–	2.4711	–	–	–	–

Chemical Composition, %

Alloy

3J21

0.07-0.12

1.7-2.3

≤0.6

≤0.01

14-21

19-21

–

Rest

6.5-7.5

39-41

Mechanical Properties

Alloy	Condition	Size, mm	Class	Tensile strength, Kgf/mm-2	Elongation, %
3J21	Cold rolled strip	0.2-2.5	A	120-150	≥5
	Cold rolled strip	0.2-2.5	B	150-180	≥3
	Cold drawn wire	0.2-5.0	A	130-160	–
	Cold drawn wire	0.2-5.0	B	160-190	–

Available Products and Specifications

Rod, Bar, Wire and Forgings	YB/T 5256-93, YB/T 5253-93, YB/T 5252-93, YB/T 5243-93, ГОСТ 10994-1974, ГОСТ 14117-85
Plate, Sheet and Strip	YB/T 5256-93, YB/T 5253-93, YB/T 5252-93, YB/T 5243-93, ГОСТ 10994-1974, ГОСТ 14117-85
Pipe and Tube	YB/T 5256-93, YB/T 5253-93, YB/T 5252-93, YB/T 5243-93, ГОСТ 10994-1974, ГОСТ 14117-85
Welding Product	–
Others	–

Features

This kind of alloy is characterized by high elasticity, corrosion resistance and weak magnetism or non-magnetism.

Applications

They are usually used for making instruments, wireless elastic sense organs, bellows, diaphragms, corrugated pipes, springs, sensors, shock dampers and etc.