C	Mn	P	S	Si	Cr	Ni	Mo	N	Ti	Cb
0.03	1.0	0.04	0.030	1.00	25.0-28.0	1.0-3.5	3.0-4.0	0.040	0.2-1.00	6x(C+N)

Excellent resistance to reducing sulphurous gases, good resistance to oxidation in air.

Good resistance to oil-ash corrosion, and to molten copper, lead and tin.
Can be used for recuperators in metallurgial and glass industries, condenser tubes in heat exchangers for Power Station, Thermocouple protection tubes.