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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

Rincian Produk

Tempat asal: Shanghai, Tiongkok

Nama merek: TANKII

Sertifikasi: ISO9001, SGS

Nomor model: invar36

Ketentuan Pembayaran & Pengiriman

Kuantitas min Order: 10kg

Harga: dapat dinegosiasikan

Kemasan rincian: kotak kayu

Waktu pengiriman: 7-20 hari

Syarat-syarat pembayaran: L/C, T/T, Western Union

Menyediakan kemampuan: 100 Ton per bulan

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Spesifikasi

Deskripsi

Spesifikasi

Menyoroti: 
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Model TIDAK.:	Invar 36	OD:	Minimal 0,20mm
WT:	0,015mm	Panjang:	Minimal 0,20mm.
Membentuk:	pipa koil; Pipa kapiler Pipa mulus	Permukaan:	Permukaan cerah
Mencicipi:	menerima pesanan kecil

Model TIDAK.:	Invar 36
OD:	Minimal 0,20mm
WT:	0,015mm
Panjang:	Minimal 0,20mm.
Membentuk:	pipa koil; Pipa kapiler Pipa mulus
Permukaan:	Permukaan cerah
Mencicipi:	menerima pesanan kecil

Deskripsi

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