AUTOTHERME GRADE-Q-EM4
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SAW Wire

AUTOTHERME GRADE-Q

AWS: SFA 5.23 EM4

Copper coated with 2.5% Ni solid wire for submerged arc welding. These wires are suitable for welding of similar composition high strength & quenched steels.

Autotherme Grade-Q low alloy solid wire is suitable for welding of similar grade steels. The weld metal possesses high tensile strength, and meets the radiographic quality requirements. Especially suitable for welding of tubes matching composition in power plants, Refineries, Petrochemicals and Fertilizer Plants. Suitable for welding of ASTM steels: Grade ASTM A514, A517, A543 type B or C etc. 

Approvals
    CE
CHEMICAL COMPOSITION OF SOLID WIRE. WT (%)


Element
CMnSiSPCrNiMoCu
Range

 0.10 

Max

1.40-1.80
 0.20-0.60 

0.015

Max 

0.010

Max

 0.60 

Max

2.00-2.80 0.30-0.65 

0.25

Max

Typical 0.120 
1.60 0.25 0.010 0.008 0.50 2.50 0.47 0.13
CHEMICAL COMPOSITION OF TYPICAL UNDILUTED WELD METAL.WT (%)


WITH SAW FLUX
CMnSiSPCrNiMoCu
MAXFLUX  SAF-4(UV)
   0.07 1.68 0.36 0.010 0.012 0.40 2.48 0.50 0.13

    

MECHANICAL PROPERTIES OF TYPICAL WELD METAL


WITH SAW FLUX
UTS
0.2%YS 
%EICVN Impact (Joules)
CVN Impact (Joules)

(MPa)
(MPa)
(L=4d)
-40°C 
-46°C

MAXFLUX SAF-4(UV)

(590°C/3HRS)

79566572.078-58

    

Standard Size

Diameters 2.50mm, 3.20mm, 4.00mm

Additional Information

Packing : 25Kg wire in metallic ring.

Identification : Brand Name & Size is printed on label.

Packing Types : 100Kg, 250Kg, 500Kg, 750Kg & Drum packing also on request.


SAW Wire

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