Effect of solution annealing on properties of used reformer centrifugally casted tubes prior to repair by welding

Abstract

The specimens of damaged tubes, ASTM A297 HK 40, are repaired by welding. Before repairing, solution annealing is used as a procedure for properties restitution. This paper explores the influence of used solution annealing procedure (1 050 şC / 2h) on mechanical and micro-structural properties. The emphasis is put on specific procedures at repair by welding.

Keywords

• solution annealing
• repair by welding
• tubes
• mechanical proporties
• structural properties