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Electrodes for Low Temperature Service

NITHERME- 1.5 (SPL)

AWS: SFA 5.5 E8018-C4

•   A low hydrogen electrode depositing 1.5% Ni steel weld metal.                                                     

•  Pleasing operating characteristics.                                                                                                                     

•  Weld metal of radiographic quality.

Ideal for welding fine grained and Nickel steels for service temperatures down to o minus 50 C. Typical applications include storage tanks for liquefied gases like Ammonia, distillers in coke oven batteries and petrochemical industries. Also suitable for welding heavy sections and highly restrained joints subjected to dynamic loading, impact and severe service conditions.

Precaution

1. Ensure the electrodes are dry. Re-dry the electrodes at 250-300 C for one hour.

2. Accomplish minimum heat input during welding by,

a. Controlling preheat and interpass temperature. b. Using smallest size of electrode possible. c. Minimum weaving.

3. Depositing maximum number of layers, which enable grain refinement.

CHEMICAL COMPOSITION OF ALL WELD METAL (%)


Element
CMnSiPSNi
Percent
0.0801.000.500.0180.0161.50



MECHANICAL PROPERTIES OF ALL WELD METAL


UTSYSElongation
CVN Impact Strength (J)
(MPa)
(MPa)
(L= 4d)%
at Minus 50°C
57048025.0
40



CURRENT AND PACKING DATA: AC / DC(+)


Size (mm)
5x4504x350
3.15x350
2.5x350
Current Range (Amps)
200-250140-180
90-120
70-90
Qty. (Pcs./Carton)
3555
75100