Pipe made of alloy 36N
Technical characteristics
Ni36 invar is a type of precision alloys. It has a defined LCTE and contains in its composition a basis of iron (63−64,5%) and nickel (35−37%). Ni36 Invar alloy has a small linear coefficient of thermal expansion (- 1,5x10−6 1/°С temperature is -80 + 100°C). It defines its usage in manufacturing details of checking and measuring instruments. Sch tools work at marginal climatic temperature gradients, keeping a fixed dimension at this temperature range. It is alloyed with silicon, cuprum, mangan, aluminium, molybdenum, vanadium. Ni36 is obtained by a method of vacuum induction melting. This steel is often used with an effective layer of other alloys (20NG, 75GND, 19NH, 24NH). As a result, there appear thermostatic bimetals of different grades.
Modern metallurgic industry manufactures the following mill products out of alloy Ni36:
hot-rolled plate;
hot-rolled rod;
cold-rolled strip;
seamless tubu;
beaten rod etc.
Percentage composition of Invar alloy, the basis is iron
| V |
P |
Mn |
Si |
C |
Ni |
Cr |
S |
Mo |
Cu |
Al |
| ≤0.1 |
≤0.015 |
0.3 — 0.6 |
≤ 0.3 |
≤0.05 |
35 — 37 |
≤0,15 |
≤0.015 |
≤0.1 |
≤0.1 |
≤0.1 |
Physical characteristics of Invar
| С° |
1/С° |
kg/m3 |
J/(kg/deg) |
V/(m/deg) |
MPa |
Ohm-m |
| |
a 10 6 |
8,2 |
1,42 |
20 |
420 |
R 10 9 |
Physical characteristics
| Description |
Identification |
| Modulus of elasticity of first genus [MPa] |
E |
| Required temperature for obtaining of actual features, [Degree] |
T |
| Linear expansion thermal coefficient [1/deg] (range of temperatures 20°С) |
a |
| Electrical unit-area resistance [Ohm-m] |
R |
| Density of a material, [kg/m3] |
r |
| Heating capacity of material (or coefficient of conductivity for heat) [V/(m/deg)] |
l |
| Specific heat of the material [J/(kg/deg)] (range of temperature 20°С) |
C |
Mechanical features of a pipe at a temperature 20 °C.
| Products |
Diameter |
KCU |
y |
d5 |
sT |
sv |
F.e. |
Heat treating |
| GOST 14 080−78 — a pipe |
5 — 50 mm |
kJ/m2 |
% |
% |
MPa |
MPa |
- |
- |
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] |
HB |
Magnetic characteristics
| Description |
Identification |
| Coercive field (not higher) [A/m] |
Hc |
| Magnetical inductive capacity (not higher) [mH/m] |
Umax |
| Specific loss (not higher) 50 hz of frequency, magnetic induction 1.0 Т[ B/kg ] |
P1.0/50 |
| Magnetic T induction, magnetic field strength no less than 100, in magnetic field, [A/m] |
B100 |
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 Invar pipe at a bargain price
Products of Invar alloy are presented in «Auremo» company. They comply with GOST and International Standards of quality. Buy Invar pipe right now for the best Invar pipe price from Invar pipe supplier! This alloy relates to a popular group of metal products due to its real cost and diversity of its types. Buy Invar pipe from a Invar pipe supplier for a favorable Invar pipe price. A quality of metal products is guaranteed by rigorous technology compliance of manufacture. If a required type of product is absent or it is rnecessary to make another variation of product, we can manufacture the semi-fabricates in off-standard sizes for your individual order. Here you can find an affordable Invar pipe price from Invar pipe supplier.
