34HN1MA (34HN1M)
shafts, rotors, steam turbine wheels, shafts, gears, couplings, gears and other special responsibility heavy duty parts operating at temperatures up to 500 degrees C
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Structural steel | Alloyed structural steel |
Chemical composition
| Standard | Fe, % | Si, % | Mn, % | Cr, % | Ni, % | P, % | C, % | S, % | Mo, % |
|---|---|---|---|---|---|---|---|---|---|
| TU 108-1028-81 | 94.665–96.23 | 0.17–0.37 | 0.5–0.8 | 1.3–1.7 | 1.3–1.7 | < 0.03 | 0.3–0.4 | < 0.035 | 0.2–0.3 |
Information on suppliers
Technological Properties
| Weldability | Flake Susceptibility | Propensity to temper brittleness |
|---|---|---|
| Difficult to weld | sensitive | loathsome |
Analogues
| Germany | USA |
|---|---|
| Almenit 6582 | MIL S-5000 (G 43400) |
Standards
| Standard | Description |
|---|---|
| TU 108-1028-81 |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| Fe | % | Iron |
| Si | % | Silicon |
| Mn | % | Manganese |
| Cr | % | Chrome |
| Ni | % | Nickel |
| P | % | Phosphorus |
| C | % | Carbon |
| S | % | Sulfur |
| Mo | % | Molybdenum |
Designation of types of weldability
| Parameter | Units of measurement | Description |
|---|---|---|
| no limits | Welding is performed without heating and without subsequent heat treatment | |
| Boundedly welded | Welding is possible with heating up to 100–120 °C and subsequent heat treatment | |
| Difficult to weld | For obtaining quality welded joints, additional operations are required: heating up to 200–300 °C for welding, heat treatment after welding — annealing | |
| Not applicable for welded structures |