Autotherme Cr-Mo 91 - ER90S-B9
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Solid Wires

AUTOTHERME Cr-Mo 91

AWS: SFA 5.28 ER90S-B9 EN ISO CODE: 21952-B-G M13 9C1MV

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

Approvals
    CE
CHEMICAL COMPOSITION OF SOLID WIRE, WT. %:


Element
CMnSiPSCrNiMoVNbNAlCu
Percent
0.110.950.250.007
0.0089.350.351.00.20.030.040.020.10


MECHANICAL PROPERTIES OF ALL WELD METAL

(PWHT: 760 C FOR 2 HRS)

UTSYsElongation
(MPa)
(MPa)
(L= 5d)%
68055021
CURRENT AND PACKING DATA


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

WELDING PARAMETER : DC(+)


Diameter
Flat


Volt, V
Current, A
1.20 mm
27-32
300-360
1.60 mm
25-30
340-420


SHIELDING GAS


Argon/ 5% CO2

WELDING POSITION


H, F, VU, OH

Solid Wires

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