FCW M CrMo2
Description & applications
• Seamless high fill copper coated metal cored wire for gas shielded 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 5.28 | EN 12071 |
|---|---|
| E90C-B3 H4 | T CrMo2 M M 1 H5 |
Typical weld metal composition (%)
| C | Mn | Si | Cr | Mo |
|---|---|---|---|---|
| 0.06 | 1.1 | 0.3 | 2.3 | 1.0 |
All weld metal mechanical properties
| Rm (MPa) | Rp0.2 (MPa) | A5 (%) | KCV | |
|---|---|---|---|---|
| 680 | 580 | 21 | 20°C: 90 J | PWHT 1h/690°C |
Shielding gas
| M21 gas mixtures (Ar + 5 - 25% CO2) according to EN 439 / ISO 14175 | Gas flow rate: 12 - 25 l/min |
|---|
Operating conditions
| Diameter [mm] | Current type | Current I [A] | Stick out [mm] | Voltage [V] |
|---|---|---|---|---|
| 1.2 | DC(+) or pulsed | 100-350 | 12-25 | 15-35 |
| 1.4 | DC(+) or pulsed | 120-400 | 12-25 | 15-35 |
| 1.6 | DC(+) or pulsed | 130-450 | 15-25 | 15-35 |
Welding positions
FCW M CrMo2 is primarily used in the flat and horizontal-vertical positions. However, welds in other positions are also possible using the short-circuiting or pulsed arc modes of transfer.
Packings & Diameters
| Diameters [mm] | 1.2 - 1.4 - 1.6 |
|---|---|
| Packing(s) | Spool BS300 |
| Weight [Kg] | 15 |
| Description | - |