• CROMOTHERME-9(MOD) - E9018-B91
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Electrodes for Creep Resisting Steels

CROMOTHERME-9(MOD)

AWS: SFA 5.5 E9018-B91

EN ISO CODE: 3580-A E CrMo91 B 4 2 H5

A low hydrogen, iron powder electrode depositing 9Cr - 1Mo weld metal modified with Aluminium, Niobium, Vanadium and Nitrogen, designed to provide improved creep strength, toughness, fatigue life, oxidation and corrosion resistance at elevated temperatures. It is designed to weld the materials in power plant and refineries. Following are some of the steels that can be welded with this electrode. I) Plate: A 387 Gr. 91 (II) Pipes: A 335 - P91 (III) Tubes: A 213 - T91

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


Element
CMnSiPSCrNiMoVNbNCuAi
Percent
0.100.650.250.0070.0089.000.451.000.200.060.030.020.02


MECHANICAL PROPERTIES OF ALL WELD METAL

(PWHT : 760 C FOR 2 HRS)

UTSYSElongation
Hardness
CVN Impact Strength (J)
(MPa)
(MPa)
(L= 5d)%

at 20°C
68557519220HV60


DIFFUSIBLE HYDROGEN CONTENT: 5 ml / 100 gms of weld metal Max. (When measured according to AWS-4.3-86 Specification)

CURRENT AND PACKING DATA: DC (+)


Size (mm)
5x4504x350
3.15x350
2.5x350
Current Range (Amps)
160-220130-160
90-120
60-90
Qty. (Pcs./Carton)
3050
75100


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