CROMOTHERME-92 H4R- E9015-B92
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Electrodes for Creep Resisting Steels

CROMOTHERME-92 H4R

AWS: SFA 5.5 E9015-B92

Cromotherme-92 H4R is moisture resistant hydrogen controlled basic coated non synthetic electrode deposits 9Cr - 1Mo and enriched with Niobium, Vanadium,  Nitrogen and Tungsten. Tungsten additions provides adequate creep rupture  strength at higher steam pressures and temperatures. The controlled addition of  alloying elements improves the toughness and weldability. It is designed to weld  advanced materials, which are being used to improve thermal efficiency in power  plant, refineries etc. Ideal for welding steels of similar composition to achieve  adequate creep rupture strength. Some typical materials that are welded with this  consumable are A213 T92, A335 P92, A387 Gr92, etc.

Precaution

1. Re-dry the electrodes at 300 C for one hour, if expose to atmosphere. 

2. Restrict the heat input, use short arc and stringer bead.

CHEMICAL COMPOSITION OF ALL WELD METAL (%)


Element
CMnSi

S

PCrNiMoWVNbBAlCuN
Percent
0.100.700.250.0070.0129.00.600.501.700.200.060.0020.020.100.05


MECHANICAL PROPERTIES OF ALL WELD METAL

(PWHT : 760°C FOR 1 HR)

UTSYSElongation
Hardness
(MPa)
(MPa)
(L= 4d)%
 (BHW)
69058019
225

DIFFUSIBLE HYDROGEN CONTENT: 4 ml / 100 gms of weld metal Max

MOISTURE AS CONDITIONED: 0.15 Max 

MOISTURE AS EXPOSED (80% RH, 27 C FOR 9 HRS): 0.40 MAX

ADVANTAGE: Electrodes are Vacuum packed, no need of drying and can be used straight  on the job.

CURRENT AND PACKING DATA: DC (+)


Size (mm)
5x3504x3503.15x350
2.15x350
Current Range (Amps)
160-220120-16090-120
70-100
Qty. (Kgs./Carton)
222
2


Electrodes for Creep Resisting Steels

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