AUTOTHERME 307 ER307 (Approx.)
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Solid Wires

AUTOTHERME-307

AWS: SFA 5.9 ER307 (Approx.)

Autotherme-307 is a solid wire for GMAW process, available in bright finish, gives smooth flow, stable arc and spatter free under optimum welding conditions. It gives radiographic quality weld deposit. The weld metals highly crack resistant and its unique mechanical properties are maintained even when welding steels of different compositions. It is ideally suited for welding HSLA steels like armour steels etc. in cast or rolled forms. It is also useful for fabrication of hull & turret of T-90 tank, austenitic manganese steel and for producing stainless steel overlay for corrosion resistance, buffer layers for hardfacing and work hardenable deposits. These spools are best suitable for automation through robotic welding system.

CHEMICAL COMPOSITION OF WELD DEPOSIT (%)


Element
CMnSiSPCrNi
Range

0.13

Max

4.8

7.0 

 0.50 

1.20

0.02

 Max 

0.04 

Max 

18.5 

21.5 

8.5

11.0

Typical
0.08 
5.5 
0.80 
0.015 
0.025 
21.0
 9.5


MECHANICAL PROPERTIES OF ALL WELD METAL


Properties UTS 
Elongation
CVN Impact strength (J)
Range(MPa)
 (L=5d) % 
at RT (kgfm)
Typical 620 32
 9.5
SHIELDING GAS

Argon

CURRENT CONDITIONS

DCEP

WELDING POSITIONS

H, F, VU, OH

PACKING

STANDARD SIZE: Diameter 0.8 mm, 1.2 mm & 1.6 mm

QUANTITY 12.5 kgs wire, layer wound in a plastic spool that conforms to DIN 8559 SD-300. 

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