45nht - ep218 strip, circle, wire
Characteristics
Precision alloy 45NKhT (45NKhT-P or EP218; EP218-P) refers to alloys with specified elasticity characteristics. It is used in production of thin sheets, wires, tapes for elastic sensitive elements of gyroscopes, form suspensions, rotors, liquid density meters. It is referred to complex component iron-nickel alloys alloyed with titanium, chrome and other elements. It has unique physical and technical properties (thermal, elastic, magnetic, electrical) due to balanced chemical composition, thoroughness of manufacturing and processing, absence of unnecessary impurities. Production of shapes and sections of 45NKhT grade is regulated by technical specifications 14-1-3074-80.
Percentage composition .
| Si |
C |
Fe |
Mn |
P |
S |
Ni |
Al |
Ti |
Cr |
|---|
| 0.3 - 0.6 |
to 0.05 |
44.11 - 48.3 |
0.3 - 0.6 |
up to 0.02 |
to 0.02 |
43.5 - 45.5 |
0.4 - 0.8 |
2.2 - 2.7 |
5 - 5.6 |
Physical characteristics of 45NHT alloy.
| Grad |
W/(m-grad) |
1/Grad |
MPa |
Ohm-m |
J/(kg-grad) |
kg/m3 |
|---|
| T |
l |
a 10 6 |
E 10- 5 |
R 10 9 |
C |
r |
| 20 |
8 |
1.79 |
|
|
|
|
Mechanical properties of 45NXT alloy at 20 °C.
Nagartovan strip,
GOST 14 117-85
| Range |
Range. |
Size |
s in |
KCU |
d5 |
sT |
y |
Heat treatment. |
|---|
| - |
mm |
MPa |
kJ/m2 |
% |
MPa |
% |
|
|
| Bar according to GOST 14 119-85 |
980 |
635 |
15 |
635 |
25 |
Aging and hardening |
|
|
| Tungsten carbide wire GOST 14 118-85 |
1180 |
|
|
|
|
|
|
|
| Semi-naked wire, GOST 14 118-85 |
980 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
800 |
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-cold)] -C |
-C |
Mechanical properties:
| Description |
Designation |
|---|
| - Proportional limit (yield strength for permanent deformation) [MPa] |
sT |
| - Short-time 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 per unit (max) 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 |
- need for preheating to 200-300°C with final heat treatment |
Delivery
All 45NKhT grade products are certified. Technical documentation includes data on chemical composition, limiting percentage of impurities; 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 promptness of service.
Buy at the best price
Nickel alloys sold by Evek GmbH meet the state quality standards. We supply rolled metal products of standard and non-standard sizes in the shortest possible time. High quality, reasonable prices and a wide range of products determine the face of our company. Becoming our regular customer, you can count on a system of discount discounts. Cooperation with us will help you realize any engineering plans. We are waiting for your orders on our site.
