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Electrodes for Creep Resisting Steels

CROMOTHERME-1L (MOD)

AWS: SFA 5.5 E7018-B2L

Low carbon weld metal having lesser impurities i.e. S, P, will improve the subzero impact property and retains its mechanical properties after prolonged heat treatments. Ideal for welding similar composition materials. The weld metal displays excellent creep resistance with controlled hardness. It is specially applicable wherever the impact property requirement at subzero temperatures up to minus 20oC.

Precaution

1. Re-dry the electrodes at 250-300oC for one hour, as per our standard recommended practice.

2. Use short arc and stringer bead.

CHEMICAL COMPOSITION OF ALL WELD METAL (%)


Element
CMnSiPSCrMoSnAsSb
Percent
0.0450.750.500.0100.0071.250.500.020.0040.002


MECHANICAL PROPERTIES OF ALL WELD METAL

(PWHT : 690 C FOR 1 HR)

UTSYSElongation
CNV Impact at minus
Hardness
(MPa)
(MPa)
(L= 4d)%
20C (Jolues)(BMH)
56045024.0
90180-200



CURRENT AND PACKING DATA: DC (+)


Size (mm)
6.3x4505x4504x350
3.15x350
2.5x350
Current Range (Amps)
250-300200-250140-180
100-130
70-100
Qty. (Pcs./Carton)
253555
75125