Steel 20-KS
Designation
| Name |
The value |
| Designation GOST Cyrillic |
20-КС |
| Designation GOST Latin |
20-KC |
| Transliteration |
20-KS |
| The chemical elements |
20-CoС |
Description
Steel 20-KS is used: for the production of flat steel longitudinal electric-welded pipeline pipes with improved resistance to local corrosion with a diameter of 114−530 mm strength class K42 used for the construction of oil gathering networks (to transport corrosive gas, oil and formation water) and pipeline system at the pressure more than 7.4 MPa (75 kgf/cm2), for operation at a minimum ambient temperature of minus 60 °C.
Standards
| Name |
Code |
Standards |
| Pipes steel and connecting parts to them |
В62 |
TU 14-1-5433-2005 |
Mechanical characteristics
| Section, mm |
sT|s0,2, MPa |
σB, MPa |
d5, % |
kJ/m2, кДж/м2 |
| The main metal tube: heat-treated, in the state of delivery on the other 14-1-5433-2005. In the graph the impact strength values KCU-40/KCV-5 |
|
≥245 |
≥410 |
≥20 |
≥294/294 |
Description mechanical marks
| Name |
Description |
| Section |
Section |
| sT|s0,2 |
Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σB |
Limit short-term strength |
| d5 |
Elongation after rupture |
| kJ/m2 |
Toughness |
Technological properties
| Name |
The value |
| Impact strength |
For the material of welded joints of pipes on the other 14-1-5433-2005 impact strength KCU-40 should be ≥ to 24.5 j/cm2 (245 kJ/m2). |
