Torrens Island Power Station – Reheater Elements

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Torrens Island Power Station – Reheater Elements

Torrens Island Power Station – Reheater Elements

Important Features / notes:

This project involved the manufacture of high temperature reheater elements for a power boiler. The project involved exacting requirements on bending boiler tube, fit up and assembly, welding processes requiring weld procedures to be qualified. Completed elements underwent a stress relief heat treatment and full QA/QC documentation was provided in an MDR. Notable mention was welding of high nickel alloys (50%Ni,50%Cr) to 2.25% Chromium steels.

Project Completion:

2006

Torrens Island Power Station – Reheater Elements

Reheater elements for power boiler.

Customer

Tru Energy

Materials

ASTM A213 T22 (2.25%Cr 1%Mo) seamless tubes
ASTM A560 (50%Ni 50%Cr) investment casting
ASTM A387 P22 (2.25%Cr 1%Mo) certified plate

Welding Processes / Procedures

TIG welding process.

Fabrication Standards / National Codes

AS1228 – Power Boilers
AS4458- Pressure Equipment manufacture
AS4041 – Pressure Piping
AS4037 – Pressure Equipment – examination & testing

Quality Assurance Requirements

Material certification for all materials
Inspection and Test Plan ( ITP)
100% radiography on butt weld joints
100%MPI on attachment welding
Heat treatment of entire elements with heat chart recording

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