BS EN 10163-1:2004 – Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections — Part 1: General requirements

6.2 Repair requirements
The repair requirements for each class (see Clause 5) are specified in EN 1 01 63-2 and EN 1 01 63-3.
6.3 Repair procedures
6.3.1 Grinding
If a discontinuity has to be repaired, it shall be removed completely by grinding to its full depth. The ground areas shall have a smooth transition to the surrounding surface of the product. In case of dispute complete elimination of the defect may be demonstrated by magnetic particle or by dye penetrant test techniques.
6.3.2 Welding
Defects shall be completely eliminated before any weld repair is commenced. This procedure shall not reduce the thickness of the product to less than 70 % of its nominal thickness.
Prior to weld repair of edges of flat products, the depth of the groove, measured from the edge inward, shall not exceed the nominal thickness of the product with a maximum of 30 mm.
The welding shall be carried out by operators qualified in accordance with EN 287-1 . Welding procedures shall be carried out in accordance with EN ISO 1 5607, EN 288-2 and 288-3.
The weld shall be free of any lack of fusion, undercutting, cracks and other defects which could impair the workability or use of the product in question as specified by the purchaser.
The deposited weld material shall reach above the plate surface and shall subsequently be ground smooth and level with the product surface. After grinding smooth, ordered product thickness tolerances apply to the ground area.
After repair a post-weld heat treatment may be agreed between the producer and the purchaser.
Proper repair shall be verified by ultrasonic, radiographic, magnetic particle or dye penetrant inspection. When the method has not been specified by the purchaser, the choice of the method is at the manufacturer’s discretion.
If requested at the time of the order for every welding repair the producer shall provide reports containing a sketch, showing dimensions and location of the defect and full details of the repair procedure, including the welding consumables, eventual post-weld heat treatment and non-destructive testing.
NOTE In certain applications, such as otherwise unwelded components of structures for which the choice of steel grade with respect to notch ductility would be determined by the presence or absence of welding or in which permissible stresses are limited by considerations of fatigue, repair by welding may not be satisfactory or may require special inspection after completion.
In EN 1 01 63-2 and EN 1 01 63-3 classes and subclasses are defined for which repair by welding is not allowed.
BS EN 10163-1:2004 – Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections — Part 1: General requirements