AWS A5.11 ENiCrFe-2

EN ISO 14172 E Ni 6092

JIS Z 3224 DNiCrFe-2

Characteristics and Application

AWS A5.11 ENiCrFe-2 Welding rod, welding electrode  is a low hydrogen type covered electrode with a composition of 70Ni, 15Cr, 1.5Mo, 8Fe, 2Mn, 2Nb. The welding is suitable for all positions with good X-ray soundness and crack resistance. The weld metal provides large temperature service range and excellent mechanical properties meeting the requirements of API and ASME for LNG tanks. Proper base metals are also including ASTM B163/166/167/168. All-position welding is available when the diameter is 3.2(mm) or less, otherwise, horizontal and flat positions are available only.

Typical chemical Composition of Weld Metal (%)

Typical Mechanical Properties of Weld Metal

Welding Positions:

Notes on usage:

1. Be sure to clean up the contaminations on the base metal, groove and pass to pass with stainless steel brush.
2. Dry the electrodes at 350-400℃ for 60 minutes before using. Take out a batch of half day consumption and keep at 100-150℃ during welding process.
3. Use back-step method to prevent arc starting from blowholes and hold for 3-5 seconds at every end—up.
4. Maintain short arc length to prevent porosity problem.
5. Do not exceed the range of recommended current. Over heat input might decrease the impact value.

C 0.03  Mn 2.30  Si 0.45  P 0.012  S 0.008 Cr 14.20  Ni 78.0  Nb 1.0 Fe 2.5 Co 0.02  Mo 1.4

Tensile Strenght 600MPa  Elongation 34%  Charpy V-Notch -196℃ 157J 

Welding rod, welding electrode