Stainless Steel Grade AISI 317LN | EN 1.4434 | DIN X2CrNiMoN18-12-4

AISI 317LN | EN 1.4434 | DIN X2CrNiMoN18-12-4 is a nitrogen alloyed austenitic stainless steel with a higher nitrogen content than other conventional austenitic stainless steels. It has higher strength and tensile strength than AISI 317L stainless steel. The steel provides resistance to sensitization during welding and thermal processes.

Its low carbon content makes the alloy resistant to intergranular corrosion. It also provides excellent corrosion resistance to organic, sulfuric and phosphoric acids.

The material's high strength, corrosion resistance and ability to withstand high temperatures and thermal cycles make it an ideal material for use in a wide range of industrial applications.

AISI 317LN | EN 1.4434 | DIN X2CrNiMoN18-12-4 is a molybdenum-containing austenitic stainless steel known for its superior chemical corrosion resistance compared to 304 and 316 stainless steels. It is particularly useful in environments with strong acids and high temperatures.

Physical properties

Table No. 1: physical properties of stainless steel grade AISI 317LN | EN 1.4434 | DIN X2CrNiMoN18-12-4
Density g/cm³	8,0
*Specific heat capacity at +20°C, J/kgK**	500
*Thermal conductivity at +20°C, W/mK**	15
*Specific electrical resistance at +20°C, μOhmm**	0,75
Magnetic properties	non-magnetic

Table No. 2: physical properties of stainless steel grade AISI 317LN | EN 1.4434 | DIN X2CrNiMoN18-12-4
Temperature	+20°С	+100°С	+200°C	+300°С	+400°С	+500°С
Modulus of elasticity, GPa	200	194	186	179	172	165
Coefficient of linear expansion, 10^-6/°C	16,0	16,0	16,5	17,0	17,5	18,0

Table: chemical composition of steel grade AISI 317LN | EN 1.4434 | DIN X2CrNiMoN18-12-4
Chemical composition of steel grade AISI 317LN \| EN 1.4434 \| DIN X2CrNiMoN18-12-4
C	Si	Mn	P	S	Cr	Ni	Mo	N	Fe
<0,03	<1,0	<2,0	<0,045	<0,015	16,5-19,5	10,5-15,0	3,0-4,0	0,1-0,2	Other

Application

- chemical processing equipment;
- food processing equipment;
- pharmaceutical manufacturing equipment;
- marine engines and exhaust systems;
- offshore drilling platforms;
- aerospace components;
- power generation equipment;
- heat exchangers.

- boilers;
- turbines;
- pipeline systems;
- reactors;
- machines;
- valves;
- springs;
- other.