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Electrodes for Creep Resisting Steels

CROMOTHERME-20 Mo

AWS: SFA 5.5 E9018-G

Cromotherme-20Mo is a low hydrogen iron power type electrode yielding a weld deposit containing 1.25 Cr - 1.0 Mo - 0.25 V. The electrode produces stable and steady arc, easy striking and re-striking. The slag is easily detachable. The welds are of radiographic quality. Ideal for welding Cr – Mo - V steels of similar compositions, filling up work on alloy castings of similar compositions e.g. GS17CrMoV510. The weld metal possesses excellent room temperature and elevated temperature properties.

Precaution

1. Ensure the electrodes are perfectly dry. Re-dry the electrodes at 250-300 C for one hour.

2. Use short arc, stringer bead and smallest size of electrode possible.

Approvals
    CIB-MP
CHEMICAL COMPOSITION OF ALL WELD METAL (%)


Element
CMnSi

S

PCrNiMoV
Percent
0.120.700.300.0130.0151.250.201.000.25


MECHANICAL PROPERTIES OF ALL WELD METAL

(PWHT : 690°C FOR 1 HR)

UTSYSElongation
CVN Impact Strength (J)
(MPa)
(MPa)
(L= 4d)%
 at minus 20°C (J)
72062021.0
50


CURRENT AND PACKING DATA: DC (+)


Size (mm)
5x4504x4503.15x450
2.15x350
Current Range (Amps)
180-240140-180100-140
70-100
Qty. (Pcs./Carton)
355575
100