Ni-Span-C 902 (42НХТЮ)

High Elastic Alloy for Elastic Component

Ni-Span-C 902 is a constant elastic alloy with high elasticity and strength and low elastic modulus and temperature coefficient in the range of – 60-100 ℃. It is mainly used to make various elastic components such as diaphragm, bellows, spring and so on in the instrument industry.

Equivalent Grades

GB	ГОСТ	ASTM	UNS	DIN	W.Nr.	NF	BS	JIS	SS
3J53	42НХТЮ	Ni-Span-C 902	N09902	–	–	–	–	–	–

Chemical Composition, %

Alloy

3J53

≤0.05

≤0.8

≤0.02

41.5-43

5.2-5.8

2.3-2.7

0.5-0.8

Rest

–

Mechanical Properties

A. Normal mechanical properties

Alloy	Type	Delivery condition	Thickness, mm	Tensile strength, Kgf/mm-2	Elongation, %
3J53	Tape	Soft	0.2-0.5	≤90	≥20
3J53	Wire	Cold drawn	0.2-3.0	≥95	–

B. Mechanical properties after aging

Alloy	Type	Delivery condition	Thickness, mm	Tensile strength, Kgf/mm-2	Elongation, %
3J53	Tape	Soft	0.2-2.5	≥125	≥5
	Tape	Cold drawn	0.2-1.0	≥110	≥8
	Wire	Cold drawn	0.5-5.0	≥140	≥5
	Rod	Cold drawn	3.0-18.0	≥135	≥5
	Flat	Hot forged/rolled	6.0-25.0	≥110	≥10

Alloy	Delivery condition	Thickness, mm	Tensile strength, Kgf/mm-2
3J53	Cold rolled	0.5-2.5	≥90
3J53	Soft	0.5-1.0	≥70

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.