Starred angles form a useful configuration for light compression members. However, it has been found in the past lhat the design requirements for these members have been very conservative and their restrictiveness has led to starred angles being used less than they might otherwise have been. Tests and analysis of starred angles using a much less conservative layout of battens have been carried out and are descriptionbed. These have shown that batten spacing can be much greater than the limit set by the South African code, SABS 0162, although not as generous as the Canadian code, CAN3-S16.1, allows. On the basis of this research, simple and adequate recommendations are made for the design of these members.
Type 3CR12 corrosion-resistant steel has recently been developed as a weldable 12 per cent chromium-containing, corrosion-resistant steel and has not been as widely documented as the other well-known ferritic stainless steels, types 409 and 430. For this reason a rather comprehensive discussion of the analysis of the mechanical properties of type 3CR12 steel is contained in this paper.