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Invar 36 Nickel Iron Alloy Tubes with High Dimensional Stability and Corrosion Resistance for Precision Instruments

Name: Invar 36 Nickel Iron Alloy Tubes with High Dimensional Stability and Corrosion Resistance for Precision Instruments
Brand: Shanghai Tankii Alloy Material Co.,Ltd
SKU: invar36
Price: 499.05 USD
Availability: InStock

Productdetails

Plaats van herkomst: Sjanghai, China

Merknaam: TANKII

Certificering: ISO9001, SGS

Modelnummer: invar36

Betaling & het Verschepen Termijnen

Min. bestelaantal: 10 kg

Prijs: Onderhandelbaar

Verpakking Details: houten kist

Levertijd: 7-20 dagen

Betalingscondities: L/C, T/T, Western Union

Levering vermogen: 100 ton per maand

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Specificaties

Beschrijving

Specificaties

Markeren: 
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Model-NR.:	Invar 36	O.D:	0,20 mm min
GEW:	0.015 mm	Lengte:	0,20 mm min.
Vorm:	spoel pijp; Capillaire buis Naadloze buizen	Oppervlak:	Helder oppervlak
Steekproef:	aanvaard kleine bestelling

Model-NR.:	Invar 36
O.D:	0,20 mm min
GEW:	0.015 mm
Lengte:	0,20 mm min.
Vorm:	spoel pijp; Capillaire buis Naadloze buizen
Oppervlak:	Helder oppervlak
Steekproef:	aanvaard kleine bestelling

Beschrijving

Invar 36 Nickel Iron Alloy Tubes with High Dimensional Stability and Corrosion Resistance for Precision Instruments

4J36 (Invar) is used where high dimensional stability is required, such as precision instruments, clocks, seismic creep gauges, television shadow-mask frames, valves in motors, and antimagnetic watches. In land surveying, when first-order (high-precision) elevation leveling is to be performed, the Level staff (leveling rod) used is made of Invar, instead of wood, fiberglass, or other metals. Invar struts were used in some pistons to limit their thermal expansion inside their cylinders.

4J36 use oxyacetylene welding, electric arc welding, welding and other welding methods. Since the coefficient of expansion and chemical composition of the alloy is related should be avoided due to welding causes a change in the alloy composition, it is preferable to use Argon arc welding welding filler metals preferably contains 0.5% to 1.5% titanium, in order to reduce weld porosity and crack.

Normal composition%

Ni	35~37.0	Fe	Bal.	Co	-	Si	≤0.3
Mo	-	Cu	-	Cr	-	Mn	0.2~0.6
C	≤0.05	P	≤0.02	S	≤0.02

Coefficient of expansion

θ/ºC	α1/10-6ºC-1	θ/ºC	α1/10-6ºC-1
20~-60	1.8	20~250	3.6
20~-40	1.8	20~300	5.2
20~-20	1.6	20~350	6.5
20~-0	1.6	20~400	7.8
20~50	1.1	20~450	8.9
20~100	1.4	20~500	9.7
20~150	1.9	20~550	10.4
20~200	2.5	20~600	11.0

The heat treatment process
Annealing for stress relief	Heated to 530~550ºC and hold 1~2 h. Cold down
annealing	In order to eliminate hardening, which be bring out in cold-rolled, cold drawing process. Annealing needs heated to 830~880ºC in vacuum,hold 30 min.
The stabilization process	In protective media and heated to 830 ºC, hold 20min. ~ 1h, quench Due to the stress generated by quenching, heated to 315ºC,hold 1~4h.
Precautions	Can not be hardened by heat treatment Surface treatment can be sandblasting, polishing or pickling. Alloy can be used 25% hydrochloric acid pickling solution at 70 ºC to clear oxidized surface

Typical Physical properties

Density (g/cm3)	8.1
Electrical resistivity at 20ºC(OMmm2/m)	0.78
Temperature factor of resistivity(20ºC~200ºC)X10-6/ºC	3.7~3.9
*Thermal conductivity, λ/ W/(mºC)**	11
Curie point Tc/ ºC	230
Elastic Modulus, E/ Gpa	144

Invar 36 Nickel Iron Alloy Tubes with High Dimensional Stability and Corrosion Resistance for Precision Instruments 0

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Platina-Iridium Legering Buizen met Hoge Corrosiebestendigheid en 0,2 mm Min. OD voor Biocompatibele Medische Toepassingen

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Invar 36 Nickel Iron Alloy Tubes with High Dimensional Stability and Corrosion Resistance for Precision Instruments