E 410NiMo - 16

About E 410NiMo - 16

• Classification: The prefix "E" denotes an electrode for arc welding. "410NiMo" refers to the specific chemical composition (a martensitic stainless steel with Nickel and Molybdenum additions). The suffix "-16" indicates the electrode's covering type, typically a titania-based or rutile-based coating suitable for AC or DCEP (Direct Current Electrode Positive) welding, providing a stable arc and good usability in all positions except vertical down.
• Material Composition: The deposited weld metal is a soft martensitic stainless steel, typically containing:
  • Chromium (Cr): 11.5 - 14%
  • Nickel (Ni): 3 - 4.5%
  • Molybdenum (Mo): around 0.5%
  • Carbon (C): low content (<0.04%)
• Properties: The weld metal is air-hardening but is designed to offer a good balance of high strength, good toughness, and excellent resistance to corrosion, erosion, cavitation, and abrasion. The nickel and molybdenum content improves ductility and crack resistance compared to standard 410 electrodes.
• Post-Weld Heat Treatment (PWHT): Because the weld metal is air-hardening, preheating to a maximum of 150C (302F) and a post-weld heat treatment (tempering or normalizing) are generally required, especially for thicker materials or critical applications, to achieve optimal toughness and prevent cracking

Exceptional Welding Performance

E 410NiMo - 16 is engineered to deliver reliable results when welding critical components made of 13Cr-4Ni-0.25Mo stainless steel, such as those found in hydraulic turbines. The rutile-basic coating enhances arc stability, facilitates easy slag removal, and produces welds with sound mechanical properties.


Versatility and Ease of Use

Suitable for all positional welding except vertical down, this electrode functions efficiently with both AC and DC+ polarity. The variety of available diameters and lengths allows for suitability across various joint configurations and thicknesses, ensuring flexibility in application from manufacture to repair.


Superior Mechanical Properties

With a minimum yield strength of 480 MPa, tensile strength of 600 MPa, and an elongation rate of at least 20%, this electrode produces welds that are tough and resilient. The impact value of 35 J at room temperature ensures robustness in demanding operating environments.