Petrochemical Engineering
Petroleum and chemical industry often use acid, alkali, salt and other corrosive fluids,  and stainless steel welded pipes contains chromium, nickel and other subgroup  metal elements whose characteristics of corrosion resistance and antioxidation can  ensure that conveying fluid is not contaminated and pipes will not be eroded by fluid. So stainless  steel pipes are primarily used for heating piping, heat exchanger  piping, cooler tube, tower coils pipe, hydrogenation process pipeline, synthesis reactor tube in synthesis of  methanol device and regeneration of catalyst cooler tube in ethylene plant and etc.

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