ER316L	ER316L	≤0.03	1.00-2.50	≤0.60	≤0.020	≤0.030	11.00-14.00	18.00-20.00		2.00-3.00
SQ.H0Cr20Ni10Ti	ER321	ER321	≤0.06	1.00-2.50	≤0.60	≤0.020	≤0.030	9.00-10.50	18.50-20.50

Technology is on the basis of the principle of common electric arc welding, using the argon gas protection for metal welding materials, through high current on the welding backing weld material melt into a liquid pool formation, cause the weld metal and weld material at a metallurgical bonding. , due to the continuously in high temperature melting welding on argon gas, make the weld material can not contact with oxygen in the air, to prevent the oxidation of the weld material, thus welding stainless steel, iron, metal metal.