20HFA (20HF)
For the manufacture of seamless hot pipes increased corrosion resistance and cold resistance for infield pipelines
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Structural steel | Alloyed structural steel |
Chemical composition
| Standard | Fe, % | Si, % | Ca, % | Mn, % | Cr, % | Ti, % | Cu, % | Ni, % | V, % | Al, % | Ce, % | P, % | C, % | S, % | Nb, % | N, % | CED, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TU 1317-006.1-593377520-2003 | 96.937–99.25 | 0.17–0.37 | < 0.05 | 0.35–0.75 | < 0.4 | < 0.01 | < 0.25 | < 0.25 | 0.04–0.12 | 0.02–0.05 | < 0.05 | < 0.015 | 0.17–0.24 | < 0.01 | < 0.03 | < 0.008 | < 0.46 |
Information on suppliers
Standards
| Standard | Description |
|---|---|
| TU 1317-006.1-593377520-2003 |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| CED | % | CED = C + Mn / 6 + (Cr + Mo + V) / 5 + (Ni + Cu) / 15 |
| Fe | % | Iron |
| Si | % | Silicon |
| Ca | % | Calcium |
| Mn | % | Manganese |
| Cr | % | Chrome |
| Ti | % | Titan |
| Cu | % | Copper |
| Ni | % | Nickel |
| V | % | Vanadium |
| Al | % | Aluminium |
| Ce | % | Cerium |
| P | % | Phosphorus |
| C | % | Carbon |
| S | % | Sulfur |
| Nb | % | Niobium |
| N | % | Nitrogen |