Autotherme Cr-Mo 91 is copper-coated a solid wire for GMAW, yielding 9%Cr - 1%Mo and modified with Niobium, Vanadium and Nitrogen designed to provide improved creep strength, toughness, fatigue life, oxidation and corrosion resistance at elevated temperatures. The wire gives stable arc, smooth welding performance and deposits radiographic quality welds. It is designed to weld the materials in power plant, refineries, naptha cracker units, etc. Following are some of the steels that can be welded with this wire.
I) Plate: A 387 Gr.91 (II) Pipes: A 335-P91 (III) Tubes: A 213 - T91
Element | C | Mn | Si | P | S | Cr | Ni | Mo | V | Nb | N | Al | Cu |
Percent | 0.11 | 0.95 | 0.25 | 0.007 | 0.008 | 9.35 | 0.35 | 1.0 | 0.2 | 0.03 | 0.04 | 0.02 | 0.10 |
(PWHT: 760 C FOR 2 HRS)
UTS | Ys | Elongation |
(MPa) | (MPa) | (L= 5d)% |
680 | 550 | 21 |
STANDARD SIZE : 1.2 mm & 1.6 mm.
QUANTITY : 15.0 kg wire, layer wound in a plastic spool that conforms to DIN-8559 SD-300
Diameter | Flat | |
Volt, V | Current, A | |
1.20 mm | 27-32 | 300-360 |
1.60 mm | 25-30 | 340-420 |
Argon/ 5% CO2
H, F, VU, OH
ER80S-G
ERCuNi
ER316L
ER90S-B3
ER70S-A1
ER80S-B8
ER90S-B3
ER308L
ER80S-D2
ER70S-2
ERNiCu-7
ERNiCrMo-10
ER309
ER70S-2
ERNiCrMo-3
ER347
ER90S-G
ER70S-6
ER80S-B2
ER309L
ER309LMo
ER308LSi
ER410
ERNiCrMo-4
ER317L
ER80S-B6
ER90S-D2
ERNiCrMo-14
ER80S-B2