Griduct 86B2, E 8016-B2
AWS/SFA 5.5: E 8016B2, IS 1395:E 55B - 226Fe,
BS: 493E1CrMoBH, DIN 8575-84 ECrMo1B20+
A heavy coated, low hydrogen, all-position, except vertical down, Synthetic electrode which deposits 1.25% Cr / 0.5% Mo weld metal. It is intended for welding creep resisting steels of similar composition, used in power generating plant operating at temperatures upto 570°C. The welds are of X-ray quality.
WELD METAL ANALYSIS (RANGE) %
MECHANICAL PROPERTIES (RANGE)
• ASTM A 335 grades P11 and P12 ASTM A 155 grades ½ C, 1 Cr, 1 ¼ Cr, A 182F11, DIN 13 CrMo44, GS-17CrMo55, BS 3604 grades 620 and 621.
• Ideal for welding Chromium-Molybdenum alloy steels (0.5Cr-0.5Mo, Icr-0.5Mo, 1.25Cr-0.5Mo), boilers, pressure vessels, headers, high pressure piping, heat exchangers and condensers, power generation, oil refineries, petrochemical industries.
ASME QUALIFICATION : QW–432 F. NO4, QW-442 A NO. 4
RECOMMENDED REDRYING : 300°C / 2 hrs, (Max. 5 times, total 10 hrs max.)
MOISTURE IN THE FLUX COATING : 0.3% by weight, maximum
DIFFUSIBLE HYDROGEN CONTENT IN THE WELD METAL : Max 5 ml/100g. of weld metal
RECOMMENDED PREHEATING & INTERPASS TEMPRATURE : 163°C-191°C
MICROSTRUCTURE : After PWHT, the microstructure consists of tempered bainite.
WELDING POSITION :