0800 478 728

STRATA 121 Super Tool Steel Electrode

Super Tool Steel Electrode providing a high speed steel deposit with high impact resistance for repairing punches, lathe tools, shear blades etc...
Strata 121 provides a deposit of high speed steel. The weld has a homogeneous quality of fine grain size, which results in uniform hardness and serviceability.
The deposits can take suddenly applied shock and impact without cracking. The deposit has both high hardness and high compressive strength. It can be used for repairing damaged or worn high speed tools and can also be used for making high speed cutting tools using ordinary shock resistant steel for the shank and the deposit of STRATA 121 for the working edge. The deposit will hold its hardness at much higher temperatures, enabeling it to be used at higher speeds and feeds with minimum tool sharpening. 

Key Features:

  • High hardness tool steel electrode for high speed tool steels
  • Deposits maintain a very sharp edge
  • Alloying elements included tungsten, molybdenum and vanadium
  • Weld metal maintains many of its properties at elevated temperatures                                                                                                      


Rockwell Hardness: 63
Annealing Temperatures: 851°C
Tempering: 565°C
Hardening: 1204°C

Click Here to Download a pdf Product Specification Sheet

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0800 478 728
0800 4STRATA



STRATA International has been supplying welding electrodes to engineers throughout New Zealand for over 25 years and is pleased to support Proline Welding Supplies as the distributor for the South Pacific Region.
Trusted by many to weld in the most challenging applications, STRATA has proved itself to be 'better then the rest' when it comes to specialised welding products, a reputation not easily obtained, but strongly upheld.  Click here to read more.