UNS S20910

UNS S20910 stainless steel is an austenitic stainless steel with high strength and good corrosion resistance. It has almost twice the yield strength of 304 and 316 stainless steels and has better corrosion resistance than 317L stainless steel. N-50 (XM-19) stainless steel remains non-magnetic even after severe low temperature operation. It retains its strength at high and sub-zero temperatures.

UNS S20910Chemical composition：

	Ni	Cr	Mo	Mn	Si	C	N	S	P	Cb	V	Fe
Min	11.5	20.5	1.5	4	–	–	0.2	–	–	0.1	0.1	Bal
Max	13.5	23.5	3	6	1	0.06	0.4	0.03	0.045	0.3	0.3

UNS S20910Physical properties：

Density	0.285 lb/in3
Melting point	2579 – 2642°F
Resistivity	492 ohm circ-mil/ft

UNS S20910Mechanical properties：

Temperature, °F	-320	-100	75	200	400	600	800	1000	1200	1350	1500
Ultimate tensile strength, ksi	–	–	117	107	96	92	89	84	74	66	52
0.2% yield strength, ksi	–	–	60	50	38	35	34	32	31	31	30
Elongation, 2%	–	–	45	43.5	43.5	42.5	43.5	41	38	37	41
Impact strength	50	115	170	–	–	–	–	–	–	–	–

UNS S20910Stainless steel characteristics：

High-strength austenitic alloys

Good corrosion resistance

UNS S20910Uses of stainless steel：

Seawater pump shaft、heat exchanger、Pressure vessels、Marine hardware

Relevant standards：

ASTM: A 276 NACE: MR0175 ISO: 15156-3