B2L
LOW ALLOYED WELDING WIRESSFA-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 |
