product detail
Overview
ERNiMo-8 is a weld metal with a nominal composition (wt.%) of 70Ni, 19Mo, 6Fe,3W, 2Cr. This filler metal is mainly used for the welding of 9%Ni steels such as ASTM A33, A334, A353 and A553, all of which have UNS number K81340, and can be welded using GTAW and SAW methods.
Limiting Chemical Composition, %,of ERNiMo-8
Nickel (Ni).......................................................................................................................................................................69.22-72.00.
Molybdenum (Mo) ...................................................................................................................................................................19.00.
Iron (Fe).....................................................................................................................................................................................6.00.
Tungsten (W).............................................................................................................................................................................3.00.
Chromium (Cr) ..........................................................................................................................................................................2.00.
Aluminum (Al).....................................................................................................................................................................0.20 max.
Manganese (Mn)................................................................................................................................................................0.20 max.
Carbon (C)..........................................................................................................................................................................0.03 max.
Silicon (Si) ..........................................................................................................................................................................0.15 max.
Thallium (Ti)........................................................................................................................................................................0.20 max.
Mechanical Properties
Heat treatment | Yield strength | Tensile strength | Elongation | Impact toughness | |
Rpo₂ | Rm | A₅ | ISO-y | ||
as welded | 430 MPa | 720 MPa | 35% | 100」 | 100J/-321°F |
Corrosion Resistance
ERNiMo-8 nickel-based alloy welding wires show good corrosion resistance in reducing acids such as sulfuric, phosphoric and hydrochloric acid. In addition, it has excellent corrosion resistance in oxidizing salts (such as FeCl3 and CuCl2) and various organic acids. These corrosion resistance characteristics make ERNiMo-8 welding wire widely used in chemical, petroleum, offshore engineering and other fields.
In addition, ERNiMo-8 nickel-based welding wire also maintains high mechanical properties and corrosion resistance at low temperatures, so it is often used for welding equipment used in low temperature environments.