E9018-B3 ISO E6218-2C1M Welding Rods for Heat-resisting Low Alloy Steel (CHH408)
The weld metal has features of high-temperature oxidation-resisting and E9018-B3 welding rod is used for welding structures made by category of Cr2.5Mo heat-resisting low alloy steels, such as high-temperature, high-pressure pipelines, chemical machineries, petroleum thermal cracking equipments that work temperature is below 550℃.
Type of Covering: Low hydrogen, potassium, iron powder
Welding Position: F, H, HF, OH, V
Type of Current: DCEP or AC
E9018-B3 Chemical Composition of Deposited Metal (%)
| C | Mn | P | S | Si | Cr | Mo | |
|---|---|---|---|---|---|---|---|
| Standard | 0.05-0.12 | ≤0.90 | ≤0.030 | ≤0.030 | ≤1.00 | 2.00-2.50 | 0.90-1.20 |
| Typical | 0.080 | 0.75 | 0.012 | 0.010 | 0.24 | 2.34 | 1.14 |
Mechanical Properties of Deposited Metal (PWHT 690℃±15℃x1h)
| Tensile Strength Rm (MPa) | Yield Strength ReL/Rp0.2 (MPa) | Elongation A4 (%) | Ambient Temp Impact Value (J) | |
|---|---|---|---|---|
| Standard | ≥620 | ≥530 | ≥15 | -- |
| Typical | 680 | 580 | 20 | 180 |
Sizes & Recommended Current (DC+ or AC Open Circuit Voltage ≥70V)
| E9018-B3 Welding Rod Diameter (mm) | 2.5 | 3.2 | 4.0 | 5.0 |
|---|---|---|---|---|
| Welding Rod Length (mm) | 300 | 350 | 400 | 400 |
| Welding Current (A) | 60-90 | 90-120 | 140-180 | 170-210 |