EN 1011 Welding Recommendations for welding of metallic























- Slides: 23

EN 1011 Welding - Recommendations for welding of metallic materials (please buy these standards)

EN 1011 -1 General guidance for arc welding

EN 1011 -2 Arc welding of ferritic steels

Annex C Avoidance of hydrogen cracking

Method A for the avoidance of hydrogen cracking in non-alloyed, fine grained and low alloy steels

Method A for the avoidance of hydrogen cracking in non-alloyed, fine grained and low alloy steels

Method A for the avoidance of hydrogen cracking in non-alloyed, fine grained and low alloy steels

Method A for the avoidance of hydrogen cracking in non-alloyed, fine grained and low alloy steels Caution: Hydrogen is quite dangerous Use weld products with low hydrogen

Method A for the avoidance of hydrogen cracking in non-alloyed, fine grained and low alloy steels Information: Maximum acceptable CE normally mentioned in Do. P* (for safe and simple welding conditions) (*) Declaration of Performance (CPR)

Method A, Conditions which may require more stringent procedures

Method A, Conditions which may require more stringent procedures

Method A for the avoidance of hydrogen cracking in non-alloyed, fine grained and low alloy steels

Method A for the avoidance of hydrogen cracking in non-alloyed, fine grained and low alloy steels

Method A, Hydrogen scales

Method A, Conditions for welding steels with defined Carbon Equivalents

Method A for the avoidance of hydrogen cracking in non-alloyed, fine grained and low alloy steels Note: In the following tables, the combined thickness is voluntary limited to a maximum of 100 mm although the charts, as shown above, may indicate higher values.

Method A for the avoidance of hydrogen cracking in non-alloyed, fine grained and low alloy steels Welding without preheat

Method A for the avoidance of hydrogen cracking in non-alloyed, fine grained and low alloy steels Welding without preheat

Method A for the avoidance of hydrogen cracking in non-alloyed, fine grained and low alloy steels

Method A for the avoidance of hydrogen cracking in non-alloyed, fine grained and low alloy steels Welding without preheat

Method A for the avoidance of hydrogen cracking in non-alloyed, fine grained and low alloy steels Welding without preheat

Method A for the avoidance of hydrogen cracking in non-alloyed, fine grained and low alloy steels Welding without preheat

Method B for the avoidance of hydrogen cracking in non-alloyed, fine grained and low alloy steels (developed by Dieter UWER and his co-Workers in Germany) Caution: CET generally not mentioned in Do. P CET to be computed from the product chemical analysis (need of 3. 1 or 3. 2 inspection document for proper computation)