This group of consumables represents the highest strength available on the market. Their manufacturers do not normally specify preheat/interpass temperatures for these types of consumables.

The actual temperature can for example be determined in accordance with the European Norm EN 1011-2, Method B. In addition, SSAB has made its own general estimates of the lowest suitable preheat/interpass temperature in accordance with the table below. SSAB considers that the interpass temperature should be set at a maximum of +210 °C.

The permissible heat input follows our normal recommendations for the relevant steel grade.

Single plate thickness in the joint [mm] Min. preheat temperature [°C]
  ≤ 10  125
  10,1 – 20,0  140 
 20,1 – 40,0  175
 >40,0  190
Single plate thickness in the joint [mm]
  ≤ 10
Min. preheat temperature [°C]
 125
Single plate thickness in the joint [mm]
  10,1 – 20,0
Min. preheat temperature [°C]
 140 
Single plate thickness in the joint [mm]
 20,1 – 40,0
Min. preheat temperature [°C]
 175
Single plate thickness in the joint [mm]
 >40,0
Min. preheat temperature [°C]
 190

Estimated preheat levels for high strength consumables. SSAB does not take formal responsibility of these temperatures since they depend of the individual characteristics of the consumable being used.