General Characteristics
Grade 36KNM refers to corrosion-resistant magnetically soft precision alloys with low coercive force and high induction in the magnetic fields of weak, medium strength. In addition to iron (base metal) it has cobalt (35-36%), nickel (21-22%), molybdenum (2.8-3.2%). Manganese and silicon are alloying additives. A distinctive feature of alloy 36KNM is high resistance to rust, as well as a fairly high level of induction in weak magnetic fields. The alloy is widely used in the production of magnetic wires working in sea water or in conditions of high humidity.
Electrical properties
| MPa |
Grad |
1/Grad |
J/(kg-grad) |
kg/m3 |
W/(m-grad) |
Ohm-m |
|---|
| E 10- 5 |
T |
a 10 6 |
C |
r |
l |
R 10 9 |
| 1.42 |
20 |
|
|
8200 |
|
420 |
Mechanical properties at 20 °C.
| Range |
Size |
sT |
sT in |
e.g. |
KCU |
y |
d5 |
Heat treatment. |
|---|
| - |
mm |
MPa |
MPa |
- |
kJ/m2 |
% |
% |
- |
| Tungsten carbide tapes, GOST 14 080-78 |
|
|
930 |
|
|
|
|
|
Percentage composition
| Mn |
Si |
C |
Ni |
Cr |
P |
S |
Mo |
Cu |
Al |
V |
|---|
| 0.3 - 0.6 |
up to 0.3 |
up to 0.05 |
35 - 37 |
up to 0.15 |
up to 0.015 |
up to 0.015 |
up to 0.1 |
up to 0.1 |
up to 0.1 |
up to 0.1 |
Notations
Physical properties of the alloy:
| Description |
Designation |
|---|
| - Alloy data acquisition temperature [Grad] |
- T |
| - Modulus of elasticity of the 1st kind, [MPa] |
- E |
| - Coefficient of thermal linear expansion (at 20°C), [1/Grad] |
-a |
| - Specific electrical resistance [Ohm-m] -R |
-R |
| - Specific gravity [g/cm3] -r |
-r |
| - Heat transfer coefficient [W/(m-grad)] -l |
-l |
| - Specific heat capacity (at 20°C), [J/(kg-grad) |
-C |
Mechanical properties:
| Description |
Designation |
|---|
| - Ultimate yield strength (yield strength for permanent deformation) [MPa] |
sT |
| - Tensile strength [MPa] |
sT |
| - Ratio constriction [ % ] |
y |
| - Tensile elongation [ % ] |
d5 |
| - Brinell hardness, in [MPa] |
HB |
| - Impact toughness [ kJ/m2 ] |
KCU |
Magnetic properties :
| Description |
Designation |
|---|
| - Coercive force (within) [ A/m] |
Hc |
| - Magnetic permeability (not more than) [ MHN/m] |
Umax |
| - Losses (not more than) at frequency 50 Hz and 1.0 Tl [ W/kg ] |
P1.0/50 |
| - Magnetic induction Tl (not less) at magnetic field strength 100, in magnetic fields [ A/m] |
B100 |
| - Coercive force (not less), [ A/m] |
Hc |
| - Magnetic permeability (not more than), [ MHN/m] |
Umax |
| - Losses (not more than) at frequency 50 Hz and 1.0 Tl [ W/kg ] |
P1.0/50 |
weldability:
| Designation |
Description |
|---|
| Limited weldable |
- Must be preheated to 100-120°C with subsequent heat treatment |
| no restrictions |
- No need for preheating and final heat treatment |
| Difficult to weld |
- Preheating to 200-300°C with final heat treatment necessary |
Delivery
All 36KNM products are certified. The technical documentation includes data on the chemical composition, the limiting percentage of impurities, and the mechanical properties of products. From us you can buy in bulk a variety of semi-finished products for large-scale production. We also offer good conditions for retail buyers. You will be satisfied with the level of service and efficiency of service.
Buy at a bargain price
Evek GmbH has an unlimited range of precision alloys of the highest quality. We offer special alloys at the best price. If you are interested in our offer, please contact your nearest office. Qualified specialists will provide all necessary information regarding products, price range, sales conditions. The cost of goods depends on the parameters of products and additional terms of delivery.
