GM 80SB2

IDENTIFICATION :ER 80S-B2
CLASSIFICATION : AWS/SFA 5.28 ER 80S-B2 DIN 8575-84 SGCr Mo 1

DESCRIPTION :

Copper coated solid wires alloyed 1.25% Cr/0.5% Mo intended for welding creep resisting steels of similar composition used in power generating plant operating at temperature up to 5700C.Deposited weld metal meets X-ray quality.

COMPOSITION OF THE WIRE (RANGE) %

C Mn Si S
0.07-0.12 0.40-0.70 0.40-0.70 0.025 max
P Cr Mo Cu
0.025 max 1.2-1.5 0.40-0.65 0.35 max

MECHANICAL PROPERTIES (RANGE) (PWHT 620 ± 15°C/2 hrs.)

Tensile Strength N/mm2 Yield Stress N/mm2 Elongation (%) (L=4D)
560-640 480-580 20-28

APPLICATIONS:

In general usable on the following grades of creep resistant steels.

  • 1 Cr ½ Mo steels such as ASTM A 387 Gr. B, DIN steels 13 Cr Mo44-GS-17Cr Mo55, A335 Gr. P11 and P12
  • ASTM A199, A200, A213

PREHEAT AND INTERPASS TEMPERATURE : 135-165°C

SHIELDING GAS : 99.99 % Argon, 7-12l/min, and back purge.

WELDING CURRENT:DC (-)

PACKING SPECIFICATION

SIZE (MM) Wt per Spool per Kg.
1.2 12.5/ 15
1.6 12.5/ 15