Gráid nicil agus comhdhéanamh ceimiceach
| Grád nicil íon | Ni + Co. | Cu | Si | Mn | C | Mg | S | Fe | Iomlán eisíontais | Ainmniú UNS |
| nach lú ná | ||||||||||
| N2 | 99.98 | 0.001 | 0.003 | .002 | .005 | .003 | .001 | .007 | .02 | |
| N4 | 99.9 | 0.015 | 0.03 | .002 | .01 | .01 | .001 | .04 | 0.1 | N02201 |
| N6 | 99.5 | 0.06 | 0.10 | .05 | .10 | .10 | .005 | .10 | 0.5 | N02200 |
| N8 | 99.0 | 0.15 | 0.15 | .20 | .20 | .10 | .015 | .30 | 1.0 | |
| DN | 99.35 | 0.06 | 0.02-0.10 | 0.05 | .02.10 | .02-.10 | .005 | .10 | 0.35 | |
| NY1 | 99.7 | 0.1 | 0.1 | - | .02 | .10 | .005 | .10 | 0.3 | |
| NY2 | 99.4 | 0.01-0.10 | 0.1 | - | - | - | 0.002-0.01 | .10 | 0.6 | |
| NY3 | 99.0 | 0.15 | 0.2 | - | 0.1 | 10 | 0.005 | .25 | 1.0 | |
| NMg0.1 | 99.6 | 0.05 | 0.02 | .05 | .05 | 0.07~0.15 | 0.005 | .07 | .40 | |
| NSI0.19 | 99.4 | 0.05 | 0.15~0.25 | .05 | .10 | .05 | 0.005 | .07 | .50 | |
Friotaíocht creimeadh nicil
Tá nicil frithsheasmhach in aghaidh creimeadh alcaile agus tá sé réasúnta seasmhach i alcaile leá ardteochta nó lasair, mar sin úsáidtear go príomha é sa tionscal alcaile. Ag gnáth-theocht, tá an seilide thar a bheith seasmhach in uisce na farraige, tuaslagán salainn, agus meán orgánach (mar shampla aigéad sailleach, feanól, coipeadh, srl.), Agus níl sí frithsheasmhach in aghaidh creimeadh aigéad neamhorgánach, ná seasmhach in aigéad aicéiteach agus aigéad éadrom.
