68NHWKTJU wire, rod
Spring wire, rod
68NHWKTJU wire, rod supplier
«Auremo» company proposes to buy 68NHWKTJU wire, rod on the most favorable terms. There is a wide range of goods of a high quality in stock. A price depends on order quantity and additional conditions of supply. If you buy products by wholesale, you will be given special discounts. An availability of products and efficiency of delivery are conditioned by a fact that we have offices in Moscow, St. Petersburg and cities of Central Europe.
Relevance
Precision alloy 68NHWKTJU relates to alloys with defined characteristics of elasticity. It is used in a manufacture of rolled bar that is utilized in making elastic sensitive elements and operates at temperature -196 + 500 °C. It is an alloy that possesses unique physical and mechanical characteristics (elastic, heating, electrical and magnetic etc.). It is characterized with an accuracy of chemical composition, a preciseness of manufacture and processing, and absence of residual elements. The main quantity of these alloys constitute iron, copper, nickel, niobium, cobalt.
Physical characteristics of alloy
| Ohm-m |
MPa |
Degree |
J/(kg/degree) |
1/Degree |
V/(m/degree) |
kg/m3 |
| |
1.79 |
20 |
|
8 |
|
|
| R 10 9 |
E 10— 5 |
T |
C |
a 10 6 |
l |
r |
Percentage composition of alloy:
| Cu |
Si |
Fe |
C |
S |
Mn |
P |
Cr |
Ni |
W |
V |
Co |
Ce |
Al |
Nb |
Ti |
B |
- |
| ≤0,07 |
≤ 0.4 |
≤1 |
≤0.05 |
≤0,01 |
≤ 0.4 |
≤0.015 |
18 — 20 |
55.402 — 63.5 |
9 — 10.5 |
≤ 0.2 |
5.5 — 6.7 |
≤0.05 |
1.3 — 1.8 |
≤ 0.2 |
2.7 — 3.2 |
≤ 0.003 |
B, Ce — computing |
Physical characteristics
| Description |
Identification |
| Modulus of elasticity of first kind [MPa] |
E |
| Heating capacity of material (or coefficient of conductivity for heat) [V/(m/degree] |
l |
| Required temperature for obtaining of actual features, [Degree] |
T |
| Linear expansion thermal coefficient [1/degree] (range of temperatures 20°С) |
a |
| Specific electrical resistivity [Оhm-mm2/m] 0,81 |
R |
| Density of a material, [kg/m3] |
r |
| Specific heat of a material [J/(kg/degree)] (range of temperature 20°С) |
C |
Magnetic characteristics
| Description |
Identification |
| Coercive field (not higher) [A/m] |
Hc |
| Magnetic inductive capacity (not higher) [mH/m] |
Umax |
| Saturation induction 2 T [V/kg] |
P1.0/50 |
| Magnetic T induction, magnetic field strength no less than 100, in magnetic field, [A/m] |
B100 |
Mechanical characteristics
| Description |
Identification |
| Short resistance to rupture [MPa] |
sv |
| Flow limit (proportional limit load) for permanent change of form [MPa] |
sT |
| Percent elongation at fracture [ % ] |
d5 |
| Contraction ratio [ % ] |
y |
| Impact hardness [ kJ/m2] |
KCU |
| Brinell hardness [MPa]-1 125−195 |
HB |
Welding:
| Type |
Description |
| limitedly weldable |
welding is possible at heating to 100−120°С and last heat treating |
| hardly weldable |
in order to obtain a qualitative welded joints, it is necessary to perform the following operations: while welding to heat it up to 200−300°C, heat treating (annealing) after welding |
weldable
without stint |
welding is done without further heat treating or previous heating |
Buy at a bargain price
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