How ADT products are inspected?
Technical information of SEIGEN line (Contribution of IFIMAT).
The picture on the right shows the analyzed set of SEIGEN blades where their different lengths can be seen.
From top to bottom, the models from 110 mm-SEIGEN to 300 mm-SEIGEN are shown.
SEIGEN blades were cut in order to be examined and to perform the composition and metallographic assays on the sections of interest.
To the right, a cross-sectional view of a blade is presented, showing the sharp edge. The image was achieved on a cross-sectional cut of the 14-SEIGEN blade, which was included in a block of heat-cured acrylic, polished and observed under a light microscope at low magnification.
Image corresponding to the cutting edge of the SEIGEN blade
Chemical composition of the SEIGEN blades:
It must be noted here that the original models correspond to the AISI 440 steel standard. For 3 years now, Mercosur regulations do not allow us to import this steel. Available steels in the AISI 420 category were examined with our Chinese partners and none meeting the characteristics required by our Master Craftsman for the SEIGEN line was found. By a systematic work of innovation and development, where different concentrations of the components in the alloys were evaluated, we finally found a steel meeting the quality conditions we were looking for and that was in line with the Mercosur regulation. The main difference with the AISI 420 standard is that this has a 0.2% Mo concentration while the SEIGEN steel has a concentration of 0.75% of this element. This detail ensures the 55 HRc hardness, as AISI 440, with the fortitude and durability of the edge that characterizes the SEIGEN line. The full analysis can be seen at the IFIMAT page.
The blades and knives for SEIGEN line with destiny outside the Mercosur countries are made with AISI 440 stainless steel, providing there are no regulations against this steel.
Technical information of the ÑANDÚ Argentina line:
14 cm-ÑANDÚ Argentina blade
The composition corresponds to a type AISI 420 maraging stainless steel. Hardness is 52 HRc.
Comparative analysis of the microstructure of SEIGEN and ÑANDÚ steels.
All SEIGEN blades have the same type of essentially maraging structure, with low precipitate content. ÑANDÚ blades also exhibit low precipitates. In the pictures below, the difference between the microstructure of SEIGEN and ÑANDÚ can be seen.
SEIGEN steel at 800x magnification ÑANDÚ steel at 800x magnification
The composition corresponds to a type AISI 420 maraging stainless steel. Hardness is 52 HRc. Structure is clearly maraging, with smaller grain size than ÑANDÚ blades. This may be due to the rapid cooling caused by the smaller blade section.
SEIGEN Hygieia knife:
This high hygiene-criollo knife is manufactured with the SEIGEN blade, which technological and food safety characteristics have been extensively described for information of any interested in them. To eliminate the continuity between the button and the wedge, a button connecting to the wedge has been incorporated. The selected material is 3 mm-sanitary stainless steel. The back handle is also made of 3 mm-sanitary stainless steel. The handle is manufactured with ebony, which density (weight/volume) is 1.3. Because of its high density, ebony does not float in water as lower density-woods do. For this reason, it is considered the hardest wood in the world. For the impenetrability, easy washing and brotherhood with steel, the ebony handle is highly sanitary.
Lately, hunters have found that SEIGEN Hygieia is the best ally in hunting trips when used as a complement of the Bowie knife. There is a high demand of SEIGEN 200 mm, 250 mm and 300 mm for wild boar hunting.
Máximo P Coll Julia Coll
+54 249 154312097 +34 619014534
Máximo Coll (Jr) Nicolás Coll
+54 249 154216165 +34 635970287