Daigo Ichiro
,
Tajima Keijiro
,
Hayashi Hideo
,
Panasiuk Daryna
,
Takeyama Kentrao
,
Ono Hideki
,
Kobayashi Yoshinao
,
Nakajima Kenichi
,
Hoshino Takeo
… Industrial standards stipulate that the six major properties of carbon steel are tensile strength, elongation, yield point or proof stress, soundness in the welding area, fracture toughness, and bendability. …
J-STAGE