However,the existing "Steel Structure Design Criterion"(GB50017-2002),"Technical Criterion for Cold-Formed Thin Wall Profiled Bars"(GB50018-2002),and "Overhead Transmission Line Pole and Tower Structural Design Regulation"(DL/T5154-2002) do not provide design and calculation methods for cold-formed non-equilateral angle steel specifically,affecting its promotion.

In the process of steel-making and rolling the chemical compositions and proper ties of the test samples of scalene angle steel are analyzed and the regression equation between the strength of the steel ( δ b, δ s) and carbon eq uation, i.

This papers introduces that a following research on the steelmaking and rolling processes of a ship scalene angle steel.

Two-way meridian lattice shell is the single-layer lattice shells structure made of two groups of intercrossed full-length scalene angle steel along the direction of the sphere lattice lines.

The pass design of large gauge 20/12 5 unequal angle steel on medium section mill were introduced The butterfly pass and final pass design were mainly introduced The production show that the yield and percent of pass respectively reaches 90 62% and 99 57%,and the product quality meet the demand of standar