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GEMET ST 12

IDENTIFICATION           CLASSIFICATION
Gemet ST12, ECoCr-B   AWS/SFA 5.13: ECoCr-B, EN 14700: E Co 3,                                         DIN8555: E20-UM-50-CSTZ

DESCRIPTION
GEMET ST12 has excellent welding properties and a homogeneous, finely rippled seam due to spray arc. Very easy slag removal.

WELD METAL ANALYSIS (RANGE) %

C Cr W Co
1.6 max 29 max 8.5 max Balance

MECHANICAL PROPERTIES (RANGE)

Hardness of Pure Weld Metal
45 - 50 HRC

TYPICAL APPLICATIONS

GEMET ST12 is used for highly wear resistant hard facing on parts subject to a combination of abrasion, erosion, cavitation, corrosion, pressure and high temperatures up to 900ºC, such as running, sealing and gliding faces on fittings and pumps, tools for wood, paper, plastic, shredding tools, highly stressed hot working tools without thermal shock. Machining by grinding or with tungsten carbide cutting tools.

WELDING INSTRUCTIONS:

  • Clean welding area
  • Preheating temperature 450 - 600ºC
  • Very slow cooling.
  • Hold stock electrode vertically and with a short arc and lowest possible amperage.
  • Re-dry electrodes that have become damp for 2 hrs / 300ºC

PACKING PARAMETERS

Size (mm) Length (mm) Current Condition AC / DC (+) Amps Packing / Packet (kg) Packing / Box (kg)
3.15 350 70 - 110 2 2 x 5 = 10
4 350 90 - 130 2 2 x 5 = 10
5 350 110 - 150 2 2 x 5 = 10