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Ni-Span-C Alloy 902, N09902, Nickel Alloy Spring Wire

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Hunan Fushun Metal Co., Ltd.

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Ni-Span-C Alloy 902, N09902, Nickel Alloy Spring Wire

Name: NiSpanC Alloy 902 N09902 Nickel Alloy Spring Wire
Brand: fushun
Price: 1 USD

Brand Name : fushun

Model Number : 902

Certification : ISO NQA

Place of Origin : CHINA

MOQ : 1KG

Payment Terms : L/C, T/T, D/P, D/A

Delivery Time : 1

Material : Nickel Alloy

Application : Spring

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Ni-Span-C Alloy 902, N09902, Nickel Alloy Spring Wire

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°C (-50 to +150°F).

Size

Diameter: 0.1 - 40mm

Shape: round, square, flat, special shaped

Key Features

Outstanding controllable thermoelastic coefficient characteristics.

Can be processed to have constant modulus of elasticity from from -45 to +65ºC (-50 to +150ºF).

Good for springs in watches and weighing equipment.

Age hardenable.

Typical Applications

Springs in precise applications, such as

watches

weighing machines

Designations

UNS N09902

AWS 080

Specifications

AMS 5225

AMS 5221

HS 261

Chemical Composition

Element	Min %	Max %
C	–	0.06
Mn	–	0.8
Si	–	1
P	–	0.04
S	–	0.04
Cr	4.9	5.75
Ni+Co	41	43.5
Ti	2.2	2.75
Al	0.3	0.8
Cr+(Ti-4xC)	7.1	8.1
Co	–	1
Fe	Bal	Bal

Physical Properties

Density	Melting Point	Coefficient of Expansion	Modulus of Rigidity	Modulus of Elasticity
8.05 g/cm³	1480 °C	7.6 μm/m °C (20 – 100 °C)	62 – 69 kN/mm²	165 – 200 kN/mm²
0.291 lb/in³	2700 °F	4.2 x 10-6 in/in °F (70 – 212 °F)	8993 – 10008 ksi	23932 – 29008 ksi

Heat treatment

Condition	Type	Temperature	Time	Cooling
Spring Temper – For good all round properties	Age Harden	650 °C (1200 °F)	2 Hr	Air
Spring Temper – For max stability	Stress Equalise Age Harden	400 °C (750 °F) 650 °C (1200 °F)	2 Hr 2 Hr	Air Air
Spring Temper – For minimum hysterisis & low thermoelastic coefficient	Stress Equalise	400 °C (750 °F)	2 Hr	Air

Mechanical Properties

Annealed	Approx. tensile strength	<800 N/mm²	<116 ksi
Annealed	Approx. operating temperature (for constant modulus applications)	-45 to +65 °C	-50 to +150 °F
Spring Tempered	Approx. tensile strength	900 – 1100 N/mm²	131 – 159 ksi
Spring Tempered	Approx. operating temperature (for constant modulus applications)	-45 to +65 °C	-50 to +150 °F
Spring Temper + Aged	Approx. tensile strength	1300 – 1500 N/mm²	189 – 218 ksi
Spring Temper + Aged	Approx. operating temperature (for constant modulus applications)	-45 to +65 °C	-50 to +150 °F

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