The UTP 73 G 2 is a specialized rutile-basic coated stick electrode designed for the repair and manufacturing of hot work tools. Engineered to match the metallurgical properties of AISI H13 (DIN 1.2344) tool steel, this electrode deposits a Cr-Mo-V alloyed weld metal that exhibits exceptional resistance to hot wear, thermal fatigue, and impact. It is the preferred choice for industrial maintenance professionals tasked with extending the service life of expensive tooling components used in high-temperature environments.<\/p>\n
Metallurgically, the deposit offers a martensitic structure that is heat-treatable. In the as-welded condition, the UTP 73 G 2 achieves a hardness of approximately 53-58 HRC. However, for optimal performance and to match the base material properties of specific tools, the weld metal can be tempered. The alloy is designed to retain its hardness and structural integrity at operating temperatures up to 550\u00b0C, making it critical for applications involving cyclic thermal loading.<\/p>\n
This 3.2mm (1\/8″) electrode is supplied in a 4.8kg package, ensuring sufficient material for substantial repair jobs. It is classified under DIN 8555 as E 6-UM-55-G. The electrode features excellent running characteristics, including a stable arc and easily removable slag, which is vital when performing multi-pass buildups on precision dies where inclusion defects must be avoided. It is machinable with tungsten carbide tools, allowing for precise finishing of the repaired surfaces.<\/p>\n
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