Jain Welding

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LOW HYDROGEN & ALLOY STEEL ELECTRODES

SUNTHERM 7018 - A1 PDF

 

 

CLASSIFICATION:

AWS A5.1:E 7018 A1
IS: E49B-A1-26Fe

DESCRIPTION:

SUNTHERM 7018 A1 is a low hydrogen electrode depositing a ductile and creep resistant 0.5% Mo steels deposit for welding of Carbon Molybdenum creep resistant pressure vessel steel. SUNTHERM 7018A1 deposit a weld metal with good crack and creep resistance to temperature upto 5250 C.

TYPICAL ALL WELD METAL PROPERTIES:

Chemical Composition (%) Mechanical Properties
C 0.06 Mn 0.75 YS 48 kg/mm2
Si 0.50 Mo 0.52 UTS 54.0 kg/mm2
S 0.020 P 0.025 EL (L-4d) 26%
Impact (CVN) at RT 142 J

TYPICAL APPLICATION:

It is specially designed for the welding of 0.5%Mo & 1% Cr – 0.5 Mo steels, extensively used in high temperature pipelines, boiler tubes & plates where high creep resistance is a pre requisite.

CURRENT RANGE & PACKING DATA:

Size Length Current Range Qty of Electrodes in a Qty of Electrodes in a
(mm) (mm) (Amps) Carton Cardboard Box
2.5 350 70-110 150 x 4 20 Kg
3.15 450 85-120 100 x 4 20 Kg
4 450 100-170 65 x 4 20 Kg

PACKING:

Electrodes are packed in Cartons and four of these Cartons are shrink wrapped in a cardboard box.