E81T1-B2C Welding Wire (CHT81B2)
E81T1-B2C welding wire is one kind of heat-resisting flux cored wire and it is suitable for single pass welding or multiple pass welding structures that fabricated by 1%Cr-0.5%Mo low alloy steels, e.g. 15CrMoR, which work temperature lower than 520℃.
Type of Flux: Rutile
Welding Position: F, H, HF, OH, V, VD
Type of Current: DCEP
Notice:
- To avoid rust the wire must be kept in dry condition and keep the package in good condition also before welding.
- The surfaces to be welded must be cleaned away impurities of oil contamination, rust, moisture and so on.
- The base metal should be preheated to 150℃-300℃ before welding and after welding it should be tempered in temperature 680℃-720℃.
- The flow rate of shield gas should within 20L-25L/min in welding.
- The wire extention should be 15mm – 25mm.
E81T1-B2C Chemical Composition of Deposited Metal (%)
| C | Mn | Si | P | S | Cr | Mo | |
|---|---|---|---|---|---|---|---|
| Standard | 0.05-0.12 | ≤1.25 | ≤0.80 | ≤0.030 | ≤0.030 | 1.00-1.50 | 0.40-0.65 |
| Typical | 0.058 | 0.80 | 0.25 | 0.014 | 0.010 | 1.15 | 0.45 |
Mechanical Properties of Deposited Metal (AW)
| Tensile Strength Rm (MPa) | Yield Strength ReL (MPa) | Elongation A4 (%) | Ambient Temp Impact Value (J) | |
|---|---|---|---|---|
| Standard | 550-690 | ≥470 | ≥17 | - |
| Typical | 630 | 550 | 23 | 75 |
Sizes & Recommended Current (DC+)
| E81T1-B2C Welding Wire Diameter (mm) | 1.2 |
|---|---|
| F Welding Current (A) | 120-300 |
| HF Welding Current (A) | 120-280 |
| V, OH Welding Current (A) | 120-260 |
| H Welding Current (A) | 120-280 |
| VD Welding Current (A) | 200-280 |