X2CrNiMo18-15-4  steel
Austenitic Cr-Mo-Ni alloy stainless steel X2CrNiMo18-15-4
X2CrNiMo18-15-4 equal materiel :
Stainless Steel 317L,SUS317L,S31703,Material number 1.4438
X2CrNiMo18-15-4 is a molybdenum bearing austenitic chromium nickel steel similar to type 316, except the alloy content in X2CrNiMo18-15-4 is somewhat higher.  It has a supperior corrosion resistance in special applications where it is desired to reduce contamination to a minimum. X2CrNiMo18-15-4 was developed primarily to resist more effectively the attack of sulfurous acid compounds.  Howerver, its proven ability to combat corrosion has widened its use considerably and is now being used for many other industrial applications. The low carbon content of X2CrNiMo18-15-4 provides immunity to intergranular corrosion in applications where heavy cross sections cannot be annealed after welding or where low temperature stress relieving treatments are desired.
X2CrNiMo18-15-4 physical features :
Density (lb / cu. in.): 0.29
Specific Gravity : 7.9
Specific Heat (Btu/lb/Deg F - [32-212 Deg F]) : 0.12
Electrical Resistivity (microhm-cm (at 68 Deg F)) : 444
Melting Point (Deg F) : 2550
Modulus of Elasticity Tension : 28
X2CrNiMo18-15-4 Design Features :
1.A molybdenum bearing austenitic chromium nickel steel with an alloy content somewhat higher than the 316 grades.
2.Superior corrosion resistance in difficult environments.
3.Higher creep, stress-to-rupture and tensile strengths than other stainless steels.
4.Reduced intergranular precipitation of chromium carbides during welding and stress relieving as well as minimized possibility of corrosion failure from intergranular attack due to low carbon content.
5.Resistance to pitting and crevice corrosion making X2CrNiMo18-15-4 a successful life-cost product in a variety of highly corrosive environments.
X2CrNiMo18-15-4 Typical Applications :
1.Flue gas desulfurization scrubber systems
2.Chemical and petro-chemical processing equipment
3.Pulp and paper plants
4.Food processing equipment
5.Textile equipment
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