B2L

LOW ALLOYED WELDING WIRES

AWS A5.28 ER70S-B2L
EN ISO 21952-B- 1CML
Average Chemical analysis
C% Si% Mn% P% S% Cu% Cr% Ni% Mo% Al% V% FX ppm
0,030 0,50 0,60 < 0,012 < 0,015 < 0,25 1,30 < 0,20 0,50 < 0,020 < 0,010 < 15
The copper value include the surface coating
Typical mechanical properties of all-weld metal
Rm Rs Al Kv
N/mm² N/mm² %5d -10°C
580 480 21 110 J
The mechanical properties are approximate and may range on the basis of the Heat, shielding gas, welding parameters and other factors
Welding process
Protection MIG: Argon/ 1-5% O2/ TIG: I1 (Argon)
Current and polarity MIG: DC+ / TIG: DC-
Welding positions EN ISO 6947: PA, PB, PC, PD, PE, PF, PG
Pre Heating temperature 135-165° C
Interpass temperature 135-165° C
Post Welding Heat Treatment 620 ± 15° C
Dimensions
MIG (mm) 0,60 - 0,80 - 0,90 - 1,00 - 1,14 - 1,20 - 1,40 - 1,60
TIG (mm) 1,00 - 1,20 - 1,60 - 2,00 - 2,40 - 3,00 - 3,20 - 4,00
Base materials to be welded A537; A217 WC6; WC11 A335: P11-P12; A199: P11-P12; A200:P11-P12: A213:P11-P13 GS-25CrMo4 - H IV; St44 KL
Applications

It replaces TD-B2 when the welding annealing is not possible; Insensitive to cracking. Pressure boilers, pipelines, chemical and petrolchemical industry, quality mechanical sector.

Approvals Contact ITALFIL
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