Ni-Span c902,AMS 5225,UNS N09902, (Ni42CrTiAl),Chinese 3J53 A precipitation hardenable Nickel-Iron-Chromium alloy having outstanding controllable thermoelastic coefficient characteristics and excellent oxidation resistance in high temperature atmospheres. The alloy can be processed to have a constant modulus of elasticity at temperatures ranging from -45 to +65 ℃(-50 to +150℉).
Forms: Sheet/Plate, Bar/Rod/Wire/Coil

Description

A precipitation hardenable Nickel-Iron-Chromium alloy having outstanding controllable thermoelastic coefficient characteristics and excellent oxidation resistance in high temperature atmospheres. The alloy can be processed to have a constant modulus of elasticity at temperatures ranging from -45 to +65 ℃(-50 to +150℉).

Application

They are usually used for making instruments, wireless elastic sense organs, bellows, diaphragms

parameter

Cross Reference

Russia	USA	Japan	Germany	UK
42HXTЮ H41XT	Ni-Span C902 Elinvar Extra	Sumispan-3 EL-3	Ni-Span C	Ni-Span C

Chemical Composition (%)

C	Mn	Si	P	S	Ni	Cr	Ti	Al	Fe
≤
0.05	0.80	0.80	0.020	0.020	41.5-43.0	5.2-5.8	2.3-2.7	0.5-0.8	BAL.

Physical Property

Density(g/cm3)	8.0
Staturation induction density(B600/T)	0.7
Mean Coefficient of Linear Expansion20-100℃(10-6/K)	8.5
Resistivity Ρ/(μΩ•m)	1.1
Modulus of Elasticity(E/Mpa)	176500--191000
Shear eleasticity(G/MPa)	63500-73500
Vickers Hardness(HV)	350-450

Mechanical Property

Shape	Delivery State	Thickness&Diameter/mm	Tensile Strengthòь /Mpa	Elongationò(%)≥
Strip	Annealed	0.20-0.50	<885	20
Wire	Cold drawn	0.20-3.00	>930

The temperature coefficient of the modulus of elasticity

Aging Temperature/℃	The temperature coefficient of the modulus of elasticity βE/(10-6/℃)(-60～+80℃)
	Cold Rolling	Annealed
500	-38~-15	+18~+12
550	-22~0	+10~+35
600	-10~+10	+35~+55
650	0~+20	+42~+64
700	0~+20	+40~+60
750	-4~+16	+28~+50

Yield Strength(after the heat Treatment)

Delivery State	Thickness /mm	Yield Strength/Mpa
Annealed	0.50-2.50	<685
Cold rolled	0.50-1.00	>885

Size Range

Sheet	Thickness: 0.10mm~2.50mm, width:10.0~210mm
Plate	Thickness: 2.5mm~40.0mm,width:≤300mm
Round Wire	Dia 0.1mm~Dia 7.0mm
Flat Wire	Dia 0.5mm~Dia 7.0mm,length:≤1000mm
Bar	Dia 7.0mm~Dia 10.0mm,length:≤2000mm

Condition: (With max tolerance) hot rolled, cold rolled, cold drawn,bright