Aostainless steel S35550 1Cr18Mn10Ni5Mo3N is a stainless steel alloy with high chromium content and molybdenum for resisting corrosion in harshenvironment. The molybdenum provides the steel excellent resistance to pitting and crevice corrosion, particularly inhalide influence media. This alloy has an excellent balance of ductility and strength, allowing it to be used in a variety of high-stress applications.
1Cr18Mn10Ni5Mo3NAs alloy elements, S35550 1Cr18Mn10Ni5Mo3N steel has a very highcontent of Cr, Mo and other microalloy elements, which can improve the low temperatureimpact toughness of this steel grade by improving the microstructure homogeneity. This alloy has also good sulfuric corrosion resistance, resistance to intergranular corrosion and oxidation resistance.
S35550 1Cr18Mn10Ni5Mo3N alloy is mainly used in applications that require high corrosion resistance, such as chemical processing, oil and gas refining, and fertilizer production. This alloy has also been used in marine applications, such as storage tanks, safety valves and exhaust systems, in marine power plants.
Chemical Composition:
C:≤ 0.08
Si:≤1.00
Mn:≤2.00
P:≤ 0.035
S:≤ 0.035
Cr:17.00-19.00
Ni:5.00-7.00
Mo:3.00-3.50
Mechanical Properties
Tensile Strength, MPa: ≥ 690
Yield Strength, MPa : ≥ 550
Elongation, % : ≥ 40
Impact value : ≥ 27 J
Hardness, HB: ≤251
Weldability:
S35550 1Cr18Mn10Ni5Mo3N alloy is easy to weld. The weldability of this alloy is similar to that of standard austenitic stainless steels. It can be joined with fusion and resistance welding processes. The alloys should be preheated to about 150-200°C to reduce the risk of cold cracking. The alloy also has good machinability, although it is slightly higher than that of the austenitic stainless steels.
Heat Treatment:
S35550 1Cr18Mn10Ni5Mo3N alloy is normally not heat treated but is annealed to remove cold working induced stresses. It is non-hardenable by heat treatment.
Corrosion Resistance:
This alloy shows excellent corrosion resistance in many atmospheres, such as marine, warm humid, and other chloride environments. Because of its Cr and Mo content, it displays superior pitting and crevice corrosion resistance, as well as superior resistance to stress cracking corrosion. The alloy is also resistant to intergranular corrosion.
Conclusion
S35550 1Cr18Mn10Ni5Mo3N is a very popular and reliable stainless steel alloy with excellent corrosion resistance and weldability. It is used in industries such as chemical processing, oil and gas refining, and fertilizer production. It is used in marine applications such as storage tanks, safety valves and exhaust systems. The high chromium and molybdenum content of the alloy make it highly resistant to corrosion, even in corrosive environments. The alloy also has good machinability and is easy to weld. It is an excellent choice for any application requiring superior corrosion resistance.
