CROMOTHERME-9 (15); AWS: SFA 5.5 E8018-B8; Electrodes for Creep Resisting Steels


Description

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.

Approvals

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

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