Tape, round, wire 47ND - эп314
Characteristics of the alloy 47 ND (47ND-VI)
Alloy 47 ND refers to the precision alloys with a given tempo. coefficient of linear expansion (ТКЛРх1000000 in the temperature range of -70 to +440ºC not higher than 9−11 [1/ºC]), which is used to connect to the mica and ceramic, for soldering with soft glass, for springs of hermetic contacts. Precision alloy is a metal alloy which has physical and mechanical unique characteristics (magnetic, elastic, thermal, electrical, etc.). Precision alloy has a number of properties characterizing the accuracy of the chemical. composition, thoroughness manufacturing and processing, the absence of various impurities. This category contains, as a rule, high-alloyed alloys. Precision alloy is mainly produced based on iron, Nickel, copper, niobium, cobalt. The melting point of the alloy is 1450 °C.
Chemical composition ND 47, percent.
||46 — 48
||4.5 — 5.5
||45.72 — 49.5|
||— welding is possible in the process of heating up to temp. 100−120? C and further thermal treatment|
||in order to obtain quality welded joints, it is necessary to perform additional operations: during welding heating up to temp. 200−300°C, heat treatment (annealing) after welding.|
|Welded without any restrictions
||— welding is carried out without further heat treatment and pre-heating.|
Mechanical characteristics 47 HG at 20 °C.
|Tape, in accordance with GOST 14080−78
||kJ / m2
|— Short-term tensile strength in [MPa]
|— Yield strength (limit of proportionality) for the residual strain, [MPa]
|— at break elongation in [ % ]
|— narrowing of the relative in [ % ]
|— the viscosity of the shock, in [ kJ / m2]
|— Brinell hardness [MPa]
The physical characteristics of 47 nm.
||R 10 9
||E 10 — 5
||a 10 6|
|Physical characteristics of this brand of alloy:|
|— 1st kind of modulus of elasticity, [MPa]
|— The heat capacity of the material (or the ratio of teploprovodna.), in [W/(m·deg)]
|— The temperature required to obtain these properties, [Grad]
|— linear coefficient. temp. extensions to [1/Deg] (temp. the interval 20o),
|— electrical resistivity, [Ohm·m]
|— The density of this material, [kg/m3]
|— the specific heat capacity of the material in [j/(kg·deg)] (temp. the interval 20 ° C)
|the coercive force (not more than) [A/m ]
|the magnetic permeability (not above) [ MH/m ]
|— specific losses (no higher) frequency 50 Hz, magnetic induction of 1.0 T [ W/kg ]
|— T magnetic induction intensity of a magnetic field of not less than 100, in a magnetic field [ A/m ]
Buy at best price
The range of products from alloy 47 ND, represented by LLC «AVEK global» can satisfy almost any consumer. This alloy belongs to the popular group of steel products due to its real value and variety of output options. Quality metal products is guaranteed absolute observance of all technological norms of production. In the absence of the base performance required of the product and if necessary other option products, we can produce custom sizes to order.