Electrodes for Creep Resisting Steels

CROMOTHERME-9 (15)

AWS: SFA 5.5 E8018-B8

A low hydrogen electrode yielding 9Cr - 1 Mo deposit having excellent creep o o strength up to 600 C and resistance to oxidising atmospheres up to 700 C. It is used for welding similar composition plates, pipes, forging and tubes. Typical applications include welding of A387 Gr.9 plate, A335 P9 pipe, A217 C12 castings, A213 T9 tubes etc.

Precaution

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

2. Use short arc and stringer bead.

CHEMICAL COMPOSITION OF ALL WELD METAL (%)

Element	C	Mn	Si	S	P	Cr	Mo
Percent	0.06	0.60	0.40	0.020	0.023	9.10	1.00

MECHANICAL PROPERTIES OF ALL WELD METAL

(PWHT : 740°C FOR 1 HR)

UTS	YS	Elongation
(MPa)	(MPa)	(L= 4d)%
580	490	21.0

CURRENT AND PACKING DATA: DC (+)

Size (mm)	5x450	4x450	3.15x450	2.5x350
Current Range (Amps)	180-240	140-180	100-130	70-100
Qty. (Pcs./Carton)	35	55	75	100