X2CrNiMol8-15-4

 X2CrNiMol8-15-4 is a molybdenum-containing austenitic stainless steel with improved corrosion resistance over  304/304L and 316/316L stainless steels. The increased chromium, nickel and molybdenum content on 316L stainless steel improves chloride pitting and general corrosion. By controlling nitrogen addition, X2CrNiMol8-15-4 can generally meet the mechanical properties of 317 straight grade while maintaining low carbon content.

X2CrNiMol8-15-4 Chemical composition：

	Ni	Cr	Mo	Mn	Si	C	N	S	P	Fe
Min	11	18	3	–	–	–	–	–	–	Bal
Max	15	20	4	2	0.75	0.03	0.1	0.03	0.45

X2CrNiMol8-15-4Physical properties：

Density	Melting point	Poisson’s ratio	Resistivity
0.285 lb/in3	2540 – 2630°F	0.3	475 Ohm-circ mil/ft

X2CrNiMol8-15-4Mechanical properties：

Ultimate tensile strength, ksi	70
0.2% yield strength, ksi	30
Elongation, %	40
Hardness max., Brinell	217

X2CrNiMol8-15-4 Stainless steel characteristics：

Improved general and localized corrosion to 304/304L and 316/316L stainless steels

Good formability

Good weldability

X2CrNiMol8-15-4Uses of stainless steel：

FGD system、Chemical Process Containers、Petrochemical、Pulp、Power generation condensers

Relevant standards：

ASTM: A 240 ASME: SA-240