Description
BRAND : CROMOTHERME-91
AWS: SFA 5.5 E9015-B91
EN ISO CODE: 3580-A E CrMo91 B 4 2
Cromotherme-91 is 9Cr – 1Mo, non-synthetic, low hydrogen electrode modified with Aluminium, Niobium, Vanadium and Nitrogen designed to provide improved creep strength, toughness, fatigue life, oxidation and corrosion resistance at elevated temperatures. It is designed to weld the materials in power plant and refineries. Following are some of the steels that can be welded with this electrode.
- Plate: A 387 Gr. 91 * Pipes: A 335 – P91 * Tubes: A 213 – T91
Approvals
CE, Adani Infra, BHEL, CIB-MP, Reliance
CHEMICAL COMPOSITION OF ALL WELD METAL (%)
| Element | C | Mn | Si | P | S | Cr | Ni | Mo | V | Nb | N | Cu | Ai |
| Percent | 0.10 | 0.65 | 0.25 | 0.007 | 0.008 | 9.00 | 0.045 | 1.00 | 0.20 | 0.06 | 0.03 | 0.02 | 0.02 |
MECHANICAL PROPERTIES OF ALL WELD METAL
| UTS | YS | Elongation | CVN Impact Strength (J) | Hardness |
| (MPa) | (MPa) | (L= 5d)% | at 20°C | HV |
| 690 | 580 | 19 | 60 | 205 |
CURRENT AND PACKING DATA: DC (+)
| Size (mm) | 5x450 | 4x350 | 3.15x350 | 2.5x350 |
| Current Range (Amps) | 170-230 | 130-170 | 80-120 | 60-80 |
| Qty. (Pcs./Carton) | 30 | 50 | 75 | 100 |
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