Medium and High Tensile Steel
TENSAL-Cr
AWS: SFA SFA 5.5 E9018-G
EN ISO CODE:
Tensal-Cr is a basic coated electrode alloyed with CrMo used for the welding of 0.25C-1Cr-0.3Mo-alloyed quenched and tempered steel grades. The electrode possess excellent operating characteristics & suitable for welding in all position. Weld metal possess tensile strength up to 700Mpa. High Tensile base metal is required to preheat at minimum 200ºC. The weld metal is also suitable for flame hardening.
| Element | C | Mn | Si | S | P | Cr | Mo |
|---|---|---|---|---|---|---|---|
| Percent | 0.12 - 0.24 | 0.5-1.1 | 0.2-0.6 | 0.020 Max. | 0.020 Max. | 0.8-1.2 | 0.15-0.25 |
|
UTS (Mpa) |
YS (MPa) |
EL (L= 4d) % |
CVN Impact (J) at 20°C |
|---|---|---|---|
|
700 |
550 | 17 | 75 |
|
Size (mm) Dia x Length |
5x450 | 4x350 | 3.15x350 | 2.5x350 |
|---|---|---|---|---|
|
Current Range (Amps) |
200-250 | 140-180 | 100-130 | 70-100 |
|
Quantity (Kg/Carton) |
2.5 | 2.5 | 2.5 | 2.5 |
1. Use short arc, low current and stringer beads, Interpass 200-300ºC.
2. Re-dry the electrodes at 250-300ºC for one hour, as per our standard recommended practice.
Welds in 1Cr, 0.2Mo QT-steel
1. Normalizing 15Hr at 860º C, cooling in air, tempering at 550ºC, cooling in oil (50-60ºC).
UTS: 850Mpa
2. Hardening in oil (50-60ºC) from 860ºC/30Hr, tempering 20Hr at 550ºC, air-cooled:
UTS: 1100Mpa.
3. Soft annealing at 720-730ºC.
