MANOIR INDUSTRIES designation	Nominal Composition %						Additions	Applications	Main Features
MANOIR INDUSTRIES designation	C	Mn	Si	Ni	Cr	Co	Additions	Applications	Main Features
Austenitic Alloys
18 - 9	0.25/0.40	0.70/1.25	1.00/1.75	9.5/11.5	18/21		Ti, Nb	Tube sheet for petrochemical furnaces	Oxidation resistance up to 800^o C (1472^o F)
Manaurite 20	0.30/0.55	1.00/2.00	1.00/2.50	18/24	23/28			Reforming and ethylene cracking tubes Cast fittings and tube sheets	Resistance to creep up to 980^o C (1800^o F)
Manaurite 24/24 Nb	0.25/0.50	0.50/1.50	0.50/2.00	23/25	23/25		Nb	Reformer tubes and furnace parts	Improved stress rupture, over HK 40. Better ductility at operating temperature without impaired weldability resistance to oxidation, carburization and thermal fatigue
Manaurite 36X	0.35/0.60	1.00/1.50	1.00/2.00	33/38	23/28		Nb	Ammonia & methanol furnaces. Reforming and cracking coils.	High creep resistance and creep ductility. Good carburization and oxidation resistance. Good weldability after ageing
Manaurite 35 - 25 W	0.35/0.60	0.70/1.25	1.00/2.00	33/38	21/28		W	Ammonia & methanol furnaces. Reforming and cracking coils.	High carburization and oxidation resistance up to 1080^o C (1976^o F). Good creep strength and good creep strain rate
Manaurite XM	0.35/0.60	1.00/1.50	1.00/2.00	33/38	23/28		Nb, Ti, and others	Ammonia & methanol furnaces. Reforming and cracking coils.	Superior creep resistance and creep ductility. Improved carburization and oxidation resistance up to 1100^o C (2012^o F)
Manaurite 40 X	0.35/0.60	1.00/1.50	1.00/2.00	38/42	28/32		Nb, Ti, and others	DRI radiation. Cracking coils. High carburizing and metal dusting atmospheres	Superior carburization and oxidation resistance with very high creep strength and creep ductibility. Operating temperature up to 1150^o C for carburization resistance.
Manaurite XTM	0.40/0.60	1.00/2.00	1.00/2.00	43/48	34/37		Nb, Ti, and others	DRI radiation. Reforming and cracking coils. High carburizing and metal dusting atmospheres	Superior carburization and oxidation resistance. High creep strength. Operating temperature up to 1160^o C (2120^o F) for cracking furnaces. Also reforming appliance-resistance to contamination by heavy gas oil (S, Na, V)
Manaurite 50W	0.35/0.55	1.00/1.50	1.00/2.00	45/52	25/32		W	Elbows in petrochemical furnaces. Tube sheets and supports. Christmas tree supports.	Operating at elevated temperatures in cracking process. Very good resistance to oxidation up to 1200^o C (2192^o F). Excellent creep resistance
Manaurite 50/50Nb	0.05/0.10	0.30/0.50	0.70/1.00	48/52	48/52		Nb	Tube sheet and tube supports	Resistance to oxidation and fuel ash corrosion.
Manaurite 75	0.15/0.30	0.70/1.25	1.00/2.00	65/76	14/19			Special petrochemical components	Good agent ductility
Manaurite 900	0.06/0.15	1.00/1.50	0.75/1.50	29/37	16/22		Nb	For parts located outside furnaces e.g. reformer furnace manifolds, transferlines, pyrolisys furnace crossovers	Good creep strength. High thermal shock resistance. Good ductility after ageing. Operating temperature up to 1000^o C (1832^o F)
Manaurite 900B	0.10/0.18	1.00/1.50	1.00/1.50	33/37	24/27		Nb	Used at higher temperatures e.g. for parts inside furnaces	Similar properties to MAN.900 with higher oxidation and carburization resistance : operating temperature exceeding 1000^o C (1832^o F)
Austenitic Alloys with cobalt
Manaurite 35K	0.40/0.60	0.50/1.25	1.20/2.00	33/37	24/28	14/16	W	Reformer tubes for petrochemical appliances at high temperature Ammonia furnaces Tube sheets	Withstands high temperature up to 1245^o C (2300^o F). Good resistance to hot corrosion
Manaurite 50 W K	0.40/0.55	0.50/1.50	1.00/1.75	47/49	27/29	2.5/3.5	W	Similar to Manurite 50 W but used at higher temperatures. Radiant tubes. Tube supports	Improved creep resistance with respect to Manurite 50 W. Operating temperature up to 1200^o C (2192^o F). Good resistance to carburization.
Austenitic Alloys with tungsten
Manaure 2	0.15/0.40	0.50/1.50	<1.50	48/52	32/34		W : 12/14%	Tube sheets and supports - furnace part Thermowells.	Creep and oxidation resistance up to 1300^o C (2372^o F)