2-128
Description
GTAW rod for 1.25 % Cr 0.5 % Mo alloyed boiler, plate and tube steels as well as for the welding
of quenched and tempered and case hardening steels. Preferably used for the steels
13CrMo4-5 or ASTM A335 P11/P12. Approved in long-term condition up to +570 °C service temperature.
Suitable for step-cooling application. Bruscato ≤15ppm. The deposit is noted for its
good mechanical properties and good toughness. Further, good resistance to cracking, when
attacked by caustic soda, and the fact that it is suitable for nitriding, quenching and tempering
are additional features. The values of the creep rupture strength lay within the scatter band of
the material 13CrMo4-5. Very good operating characteristics.
Approvals and Certificates
TÜV-D (0727.), TÜV-A (91), SEPROZ, CE
Same Alloy Filler Metals
SMAW electrode: FOX DCMS Kb SAW combination: EMS 2 CrMo/BB 24
FOX DCMS Ti EMS 2 CrMo/BB 24 SC
GMAW solid wire: DCMS-IG EMS 2 CrMo/BB 25
Flux cored wire: DCMS Ti-FD Gas welding rod: DCMS
Base Materials
similar alloyed high temperature steels and cast steels, case hardening and nitriding steels of
similar chemical composition, steels resistant to caustic cracking
1.7335 13CrMo4-5, 1.7262 15CrMo5, 1.7728 16CrMoV4, 1.7218 25CrMo4, 1.7258 24CrMo5,
1.7354 G22CrMo5-4, 1.7357 G17CrMo5-5
ASTM A193 Gr. B7; A217 Gr. WC6; A335 Gr. P11 a. P 12
Operating Data
shielding gas: 100 % Argon ø mm
1.6
rod marking: 2.0
front: W CrMo1 Si 2.4
back: 1.7339 3.0
Preheat, interpass temperature and post weld heat treatment as required by the base metal.
Preheating and interpass temperature for 13CrMo4-5 (P11/P12), 200-250 °C. Tempering at
660-700 °C at least 1/2 hr followed by cooling in furnace down to 300 °C and still air.
Mechanical Properties of All-weld Metal
(*) a a1
Yield strength Re N/mm2 (MPa): 490 (≥ 440) 510 (≥ 470)
Tensile strength Rm N/mm2 (MPa): 590 (≥ 520) 620 (≥ 550)
Elongation A (L0 = 5d0) %: 25 (≥ 322) 22 (≥ 19)
Impact work ISO-V KV J + 20 °C: 250 (≥ 347) 200
a annealed, 680 °C/2 h/furnace down to 300 °C/air – shielding gas Argon
a1 annealed, 620 °C/1 h/furnace down to 320 °C/air – shielding gas Argon
Typical Composition of Welding Rod
C Si Mn Cr Mo P As Sb Sn
Wt-% 0.11 0.6 1.0 1.2 0.5 ≤ 0.012 ≤ 0.010 ≤ 0.005 ≤ 0.006
EN ISO 21952-A:2008: W CrMo1Si
EN ISO 21952-B:2008: W G1CM3
AWS A5.28-05: ER80S-G
ER80S-B2 (mod.)
AWS A5.28M-05: ER55S-G (ER55S-B2 mod.)
W.No.: 1.7339
BÖHLER DCMS-IG
GTAW rod, low-alloyed, high temperature
High Temperature and Creep-resistant Filler Metals – GTAW Rods
www.boehler-welding.com