284

Example

S550QL, S600QL1,

S650QL, S650MCD,

S690Q, S690QL1

Min. MPa

550-690

General

principles

136/138

Cored wires - Elgacore

111

Electrodes

135

MAG

141

TIG

Use consumable that matches steel in the lowest strength class.

EN-class T42-T46, AWS E70/E71-E80/E81. E.g. DWA 55L, MXA 100, P 62MR.

Fillet welds can usually be made using undermatching consumable.

Always use consumable in medium strength class for root pass in butt welds. Impact strength requirements should be fulfilled.

Test temp.

Impact

energy

P83CR

13CrMo4-4, 13CrMo4-5, A335 Gr. P11, A335 Gr. P12 (1-1,25%Cr/0,5%Mo)

Preheat and stress relief often specified. Follow fabrication specification.

P81CR

Elgamatic 183CR

Elgamatic 181CR

135

111

15Mo3, 16Mo3, A335 Grade P1 (0,5%-Mo-steel)

MAG

Electrodes

Elgatig 183CR

Elgatig 181CR

141

TIG

Quick guide for selection of welding consumables for creep resistant Cr-Mo

steels

Need for preheat should always be evaluated for steels with yield strength ≥ 355 MPa. Preheat should be calculated according to EN 1011-2.

235-500 to

550-690

Steel grade

Yield

strength

Quick guide for selection of welding consumables for unalloyed/low alloyed and

high strength steels, cont.