Tape, a circle, a wire 33NK - EP139

International Equivalent

Mark	Analogue	W. Nr.	Aisi Uns	En	Order
33НК	EP139				Delivery from the stock, in stock

Characteristic

33NK alloy with mean coefficient of linear expansion (6.0−9.0) 1x10−6 / ° C in the temperature range from -70 to + 470 ° C is intended for connection with mica, ceramics, glass brand C 72−4. 33NK and 33NK-VI for use in or upgraded to the newly created technology to 01/01/91 was not allowed. The melting point of the alloy — about 1450 ° C. It refers to a high-alloy iron-based alloys, copper, nickel, cobalt, and niobium. It has unique physical and technical qualities (thermal, elastic, magnetic, electrical), due to chemical balance. the composition, manufacture and thoroughness of treatment, lack of unnecessary impurities.

application

Scope of innovative technologies, precision instrument making, production of precise electronic sensors, home appliances, laser optics, metrology measuring equipment, memory components of computers, microphones core, magnetic antennas.

The percentage of

Si	C	Fe	Mn	P	S	Ni	Co
0.3	0.05	48.22 — 51	to 0.4	to 0.015	to 0.015	32.5 — 33.5	16.5 — 17.5

The physical properties of the alloy NC 33.

MPa	hail	1 / Grad	J / (kg · °)	kg / m3	W / (m · deg)	Ohm m
E 10- 5	T	a June 10	C	r	l	R September 10
1.42	20			8200		420

Mechanical properties 33NK alloy at a temperature of 20 ° C.

assortment	The size	sT	sre	Eg.	KCU	y	d5	Heat treatment.
-	mm	MPa	MPa	-	kJ / m2	%	%	-
Cold-rolled strip, 14 GOST 080−78			930

designations

Physical properties of the alloy:

Description	designation
— Temperature data acquisition of the alloy [Castle]	— T
— Modulus of elasticity of the 1st kind, [MPa]	— E
— Coefficient of linear thermal expansion (at 20 ° C) [1 / deg]	-a
— The electrical resistance [ohm · m]	-R
— Specific weight [g / cm3]	-r
— Thermal conductivity [W / (m · deg)]	-l
— Specific heat capacity (at 20 ° C) [J / (kg · deg)]	-C

Mechanical properties:

Description	designation
— The limit of proportionality (the yield strength for the residual strain) [MPa]	sT
— Short-term strength [MPa]	sre
— Reduction [%]	y
— Elongation at break [%]	d5
— Brinell hardness in [MPa]	HB
— Impact strength [kJ / m2]	KCU

Magnetic properties:

Description	designation
— The coercive force (within) [A / m]	Hc
— Permeability (max) [mH / m]	Umax
— Specific losses (maximum) at 50 Hz and 1.0 T. The magnetic flux density [W / kg]	P1.0 / 50
— T. Magnetic induction (at least) at a voltage of the magnetic field 100 in a magnetic field [A / m]	B100
— The coercive force (not more), [A / m]	Hc
— Permeability (max) [mH / m]	Umax
— Specific losses (max) at a frequency of 50 Hz and a magnetic induction of 1.0 T [W / kg]	P1.0 / 50

Weldability:

designation	Description
limited weldability	— Needs to preheating t ° 100−120 ° C with a final heat treatment
no limits	— No need for preliminary heating and final heat treatment
difficult to weld	— Needs to preheating t ° 200−300 ° C with a final heat treatment

Supply

All products are certified 33NK brand. The technical documentation includes data on the chemical composition, limiting the percentage of impurities; mechanical properties of products. We can buy in bulk a variety of semi-finished products for large-scale productions. We also offer good conditions for retail customers. You will be satisfied with the level of service and speed of service.

Buy at a bargain price

In stock company «Electrovek-steel» in the presence of a wide range of precision alloys for the best price. It is formed with European rates on non-ferrous metals without the inclusion of the additional costs. Quality Certificate for products including data on chemical composition, limiting the percentage of impurities; mechanical properties. Cooperation with us gives a number of advantages. Our experts will be happy to provide advice when you buy precision alloys, the correct choice of which will depend on the performance and durability of the equipment. We will help you determine not only the optimum parameters of the product, but also offer the best price.