2-306
Description
Basic electrode, core wire alloyed for analogous, heat resisting rolled, forged and cast steels e.g.
in annealing plants, hardening plants, steam boiler construction, the crude oil industry and the
ceramics industry. Joint welds in heat resisting CrSiAl steels exposed to sulphurous gases should
be given a final layer deposited by means of FOX FA.
Scaling resistant up to +1200 °C. Cryogenic resistance down to -196 °C. The service temperature
range between +650 and +900 °C should be avoided owing to the risk of embrittlement.
Approvals and Certificates
TÜV-D (0143.), Statoil, SEPROZ, CE
Base Materials
austenitic
1.4841 X 15 CrNiSi 25 20, 1.4845 X 12 CrNi 25 21, 1.4828 X 15 CrNiSi 20 12,
1.4840 G-X 15 CrNi 25 20, 1.4846 G-X 40 CrNi 25 21, 1.4826 G-X 40 CrNiSi 22 9
ferritic-perlitic
1.4713 X 10 CrAl 7, 1.4724 X 10 CrAl 13, 1.4742 X 10 CrAl 18, 1.4762 X 10 CrAl 25,
1.4710 G-X 30 CrSi 6, 1.4740 G-X 40 CrSi 17
AISI 305, 310, 314; ASTM A297 HF; A297 HJ
Typical Composition of All-weld Metal
C Si Mn Cr Ni
Wt-% 0.12 0.6 3.2 25.0 20.5
EN 1600:1997: E 25 20 B 2 2
AWS A5.4-06: E310-15 (mod.) BÖHLER FOX FFB
SMAW basic electrode,
high-alloyed, heat resistant
Same Alloy Filler Metals
SMAW electrode: FOX FFB-A GMAW solid wire: FFB-IG
GTAW rod: FFB-IG
Mechanical Properties of All-weld Metal
(*) u
Yield strength Re N/mm2 (MPa): 420 (≥ 350)
Tensile strength Rm N/mm2 (MPa): 600 (≥ 560)
Elongation A (L0 = 5d0) %: 36 (≥ 330)
Impact work ISO-V KV J + 20 °C: 100 (≥ 347)
- 196 °C: (≥ 332)
(*) u untreated, as-welded
Operating Data
re-drying if necessary: ø mm L mm amps A
– 2.5 300 50 - 175
electrode identification: 3.2 350 80 - 110
FOX FFB E 25 20 B 4.0 350 110 - 140
5.0 450 140 - 180
Preheating and interpass temperatures for ferritic steels +200 - 300 °C.
Heat Resistant Filler Metals - SMAW Covered Electrodes
www.boehler-welding.com