I-QN1803 insimbi engagqwali ingeyomndeni wakwa-QN owakhiwe yiQingtuo Group, ehlanganisa ne-QN1701, QN1804L, QN1906Mo, kanye ne-QN2109Mo. Njengesizukulwane esilandelayo, i-high-nitrogen austenitic alloy, i-QN1803 yakhelwe ukuvala igebe phakathi kokusebenza nezindleko, inikeze enye indawo ephoqelelayo yensimbi engagqwali engu-304 evamile.