Product description
– Copper-coated seamless tubular wire for gas-shielded arc welding with flux-cored wire
– Single- or multi-pass welding of creep-resistant steels alloyed with 2.25Cr-1Mo
– Optimum productivity thanks to the combined advantages of seamless and welded tubular wires
– HDM guaranteed < 4 ml/ 100g of metal deposited over the entire parameter box
– No moisture absorption, excellent wire feeding properties, good weldability and low spatter
– Designed for operating temperatures up to 550°C
Product application instructions
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
Welding positions: EN ISO 6947: PA, PB |ASME IX: 1G, 1F, 2F
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 |
Chemical analysis (%)
| C | Mn | If | Cr | Mo |
|---|---|---|---|---|
| 0.06 | 1.1 | 0.4 | 2.3 | 1.0 |
Mechanical characteristics
| Rm (MPa) | Rp0.2 (MPa) | A5 (%) | KCV | |
|---|---|---|---|---|
| 680 | 580 | 22 | 20°C: 90 J | PWHT 1h/690°C |
Why choose this cored wire?
FCW B CrMo2 (low-alloy chromium-molybdenum steel) is used in environments subject to high temperatures and pressures. For robust, long-lasting welds, basic flux-cored wire is the solution of choice, recognized for its reliability and metallurgical performance.
The advantages of basic cored wire for CrMo2 (FCW B CrMo2):
-Excellent temperature and creep resistance: the deposited metal retains its mechanical properties even in prolonged hot service.
-Perfectly balanced composition: suitable for CrMo2 steels, with good bath chemical stability and low diffusible hydrogen content.
-Reduced risk of cracking: thanks to a basic slag and low impurity content, the risk of hot or cold cracking is controlled.
-Good mechanical properties after heat treatment: ideal for applications requiring tempering after welding.
-Versatile use: effective for manual or mechanized welding, for bottom passes and filling.
-Fewer reworks, less scrap: consistent weld quality, good fusion, easy slag removal.
