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
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 |
UTS | YS | Elongation | CVN Impact Strength (J) | Hardness |
(MPa) | (MPa) | (L= 5d)% | at 20°C | HV |
690 | 580 | 19 | 60 | 205 |
CREEP PROPERTIES: Successfully completed 40119 Hours at 600oC/100 MPa.
DIFFUSIBLE HYDROGEN CONTENT: 4 ml/100 gms of weld metal Max. (When measured according to AWS-4.3-86 Specification)
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 |
E8018-B8
E8018-B3L
E8018-B1
E8018-B6
E8018-B8L
E9015-B24
E9018-G
E7018-B2L
E8018-D3
E8018-B8
E8018-G
E8018-D3
E9015-B23
E7018-A1
E9018-B3
E8018-B3L
E8018-B8L
E9018-B3
E9015-B3
E7018-B2L
E8018-B2 H4R
E7018-A1
E8018-B8
E8018-B2
E7018-A1 H4R
E8018-B6
E9018-B91
E8018-B2
E9018-D1
E9018-G
E8015-B6
E9015-B92
E9016-B3
E8018-B2
E9018-B3
E8018-B6L
E9015-B92