Evaluation method of the thermal strain for the steel of SM400B

Misawa, Naoto; Wada, Yusaku; Kato, Shoichi*

When rolled steels for welded structure SM400B was used under temperature change environment, we can apply the method of soundness evaluation of heat strain generated into this material conservatively and appropriately, by the ductility exhaution in two stages in temperature falling process, or by the strain criterion in two stages in temperature rising process.