FCW B CrMo2
Description & applications
• Seamless cored copper coated tubular wire for gas shielded flux cored arc welding
• Single and multiple pass welding of creep resisting steels alloyed with 2.25Cr-1Mo
• Optimal productivity by combining advantages of both seamless and seamed tubular wires
• HDM guaranteed < 4 ml/ 100g deposited metal on the whole parameter box
• No moisture pick up, excellent wire feeding properties, good weldability and low spatter
• Designed for service temperatures up to 550 C
APPLICATIONS
Welding creep-resisting steels of similar composition. Preheat 150-250 C and stress relieving 660-700 C must be carried out.
Examples
Creep resisting steel EN 10028-2 10 CrMo 9-10
Creep resisting steel EN 10222-2 12 CrMo 9-10
Creep resisting steel ASTM A387gr .21 & 22, A182F22, A217WC9, A234WP22
Creep resisting steel ASTM A199, A200T3b, T4, T21, T22, A213T22
Creep resisting steel ISO/TR 15608: Group 5.2
Classification
| AWS A 5.29 | EN ISO 17634-A | ASME IX Qualification |
|---|---|---|
| E90T5-B3M H4 | T CrMo2 B M 3 H5 | QW-432 F-N° 6 / QW-442 A-N° 4 |
Typical weld metal composition (%)
| C | Mn | Si | Cr | Mo |
|---|---|---|---|---|
| 0.06 | 1.1 | 0.4 | 2.3 | 1.0 |
All weld metal mechanical properties
| Rm (MPa) | Rp0.2 (Mpa) | A5 (%) | KCV | |
|---|---|---|---|---|
| 680 | 580 | 22 | 20°C : 90 J | PWHT 1h/690°C |
Shielding gas
| M20 (Ar + 5 - 15% CO2) or M21 (Ar + 15 - 25% CO2) | according to EN ISO 14175 |
|---|
Operating conditions
| Diameter [mm] | Current type | Current I [A] | Voltage [V] | Stick out [mm] |
|---|---|---|---|---|
| 1.2 | DC(+) or pulsed | 100-350 | 16-34 | 12-25 |
| 1.6 | DC(+) or pulsed | 160-470 | 20-36 | 15-25 |
Welding positions
EN ISO 6947: PA, PB
ASME IX: 1G, 1F, 2F
Packings & Diameters
| Diameters [mm] | 1.2 - 1.6 |
|---|---|
| Packing(s) | Spool BS300 |
| Weight [Kg] | 15 |
| Description | - |