- Grade / Alloy
- Alloy HR-120
- EN / W.Nr.
- 2.4854
- AISI / SAE
- —
- UNS
- N08120
- Family
- Nickel-iron
Chemical composition
Chemical composition
Typical compositionTypical composition of the principal alloying elements; not a complete acceptance analysis.
| Element | Content (% by mass) |
|---|---|
| FeIron | Approx. 33 (balance) |
| NiNickel | 37 |
| CoCobalt | ≤ 3 |
| CrChromium | 25 |
| MoMolybdenum | ≤ 1 |
| WTungsten | ≤ 0.5 |
| MnManganese | 0.7 |
| SiSilicon | 0.6 |
| NbNiobium | 0.7 |
| AlAluminium | 0.1 |
| CCarbon | 0.05 |
| NNitrogen | 0.2 |
| BBoron | 0.004 |
| CuCopper | ≤ 0.5 |
| TiTitanium | ≤ 0.2 |
Values describe the grade, not the analysis of a specific batch. The applicable product specification and material certificate determine acceptance. A dash does not mean zero.
The main properties of HR-120
HR-120 combines nickel, iron and chromium for components exposed to furnace gases while carrying loads. Alongside strength, it is known for oxidation and carburisation resistance. Carburisation means carbon entering the metal from its furnace atmosphere.
Baskets and handling equipment
Baskets and supports hold components inside hot zones. Mesh belts, basket liners and handling equipment face similar conditions. HR-120 serves these duties, which combine gas exposure with sustained or repeated mechanical loading while hot.
Heat-transfer and process applications
Radiant tubes deliver heat into furnaces; recuperators recover heat from exhaust gases. HR-120 serves these components along with retorts and certain waste-incineration parts, providing several roles within industrial heating installations.
Distinguishing HR-120 and HR-160
HR-120 and HR-160 are different compositions, not successive strength levels. HR-120 is nickel–iron–chromium based; cobalt and silicon are more prominent distinctions in HR-160. HR-120 is identified by 2.4854 and N08120.
Typical application areas
Furnace baskets, radiant tubes, retorts and heat-recovery equipment.
Product and cutting options
Relevant product forms for this material are listed below. Availability varies with grade and dimensions.