Relevance
Titanium rolled products of SP17 grade sold by Evek GmbH comply with GOST and international quality standards. The popularity of this alloy, due to the excellent performance properties and variety of products, All products are certified. Technological control at all stages of production provides a 100% guarantee of quality.
| Mark of the alloy: |
Classification: |
Industrial use: |
|---|
| SP17 |
Titanium alloy |
Production of bars, ingots and semi-finished products; production of special parts, parts of instrumentation and aircraft construction. |
The percentage composition of the alloy SP17, according to GOST 19 807- - 91
| Ti |
Al |
Zr |
V |
C |
Fe |
Mo |
Si |
N |
O |
Impurities |
|---|
| base |
3.5 - 4,5 |
2,0 |
2.5-3,5 |
≤0.1 |
≤0.25 |
1.8 - 3.5 |
≤0.12 |
≤0.04 |
≤0.15 |
Other ≤0.3 |
Physical characteristics of the alloy SP17.
| kg/m3 |
Ohm-m |
J/(kg-grad) |
Grad |
W/(m-grad) |
1/Grad |
MPa |
|---|
| r |
R 10 9 |
C |
T |
18.85 |
E 10- 5 |
|
| 4505 |
20 |
8.2 |
1.12 |
|
|
|
| 540 |
100 |
l |
a 10 6 |
|
|
|
Mechanical characteristics of SP17 alloy (temperature 20°C).
| Range |
Size |
For. |
|---|
| GOST 27 265-87 |
480-625 |
15-18 |
Marking of physical properties:
| Description |
Designation |
|---|
| - Alloy data acquisition temperature [degrees] |
- 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 |
Marking of mechanical properties:
| Description |
Designation |
|---|
| - Limit of proportionality (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 |
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 preliminary heating to 200-300°C with final heat treatment |
Alloying
Titanium high-strength alloys are alloyed with vanadium and aluminum, while heat resistance is achieved with molybdenum and aluminum additives. Most titanium alloys used contain molybdenum, aluminum, and vanadium at the same time. Such alloys are distinguished by particularly high strength and corrosion resistance. Aluminum is the main alloying element, and is as important to titanium alloys as carbon is to iron. Molybdenum is considered the second most important component.
Basic Qualities
Titanium alloys are paramagnetic and have a high specific strength that is in demand by a number of industries. These advantages are especially valuable in mechanical engineering, aviation, where heat resistance, corrosion resistance in combination with specific strength is important. It is also relevant in shipbuilding, rocket and railway transport. Some specific structural properties of titanium are of great interest for food and chemical industry.
Good price for titanium
Evek GmbH always has on stock a wide range of products from high-quality titanium. We sell wholesale and retail products at optimal prices. The quality is guaranteed by the strict observance of the standards and production technology. Technical documentation contains data on chemical composition of products, maximum percentage of impurities and mechanical properties. The products are ultrasonically checked for defects. Consultations of experienced managers will help you to make a choice. Orders are placed as soon as possible. Wholesale customers benefit from discounted prices.
