321/ 1 4 541 grade stainless steel , Titanium improved resistance to intergranular corrosion beads for an extended temperature range is a stabilized austenitic stainless steel. 321/ 1 4541 quality stainless steel, standard CrNi stainless steel is an austenitic stainless steel belonging to the family. 321 / 1. 4541 can be welded in all sizes without becoming susceptible to intergranular corrosion.
Austenitic CrNi standard grades are the most widely used range of stainless steels. Well balanced material properties make them suitable for the manufacture of many products. Due to the titanium content of 321/ 1 4541 it can be used at high temperatures.
321 / 1. 4541 is available in many product forms and sizes, often from many stainless steel stakeholders. 321/ 1 4541 'in lacquering is limited because of the titanium alloy.
1.4541 stainless steel can be easily created and fabricated through all cold forming processes. They can be used in compression, drawing and bending. Any cold forming process will increase the strength and hardness of the material and may leave it somewhat magnetic. Work hardening is accentuated by the partial transformation of the austenite phase of the material to hard martensite .
Hot forming can be done in the temperature range of 850–1150 ° C. For maximum corrosion resistance, forgings should be annealed at 1050 ° C and quickly cooled in air or water after hot forming.
Austenitic 321 / 1.4541 stainless steel materials have excellent weldability and are suitable for all conventional welding methods (such as MMA, MIG, MAG, TIG, SAW, LBW or RSW) except gas welding. 321 / 1.4541 has approximately 50% higher thermal expansion and lower thermal conductivity compared to carbon steels . This means that greater deformation and higher shrinkage stresses can be caused by welding.
Autogenous welding can be used in thin sections . Preferably, compatible or slightly over-alloyed fillers should be used to ensure that the weld metal properties (eg strength, corrosion resistance) are equivalent to those of the base metal.
Suitable filler metals: 19 9 Nb or 19 9 L
Generally, post-weld heat treatment is not required. In special cases where the risk of stress corrosion cracking or fatigue is high, stress relief may be considered.
To fully restore the corrosion resistance of the weld seam, the discoloration in the weld should be removed by pickling and passivation.
Other names (standards)
AFNOR Z 6 CNDT 18-10