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

Aiming at the problem in engineering design,the test for a total of 48 Q460 single equal leg angle axial compression members has been carried out(All the members are divided into 4 groups by different kinds of sections and each group contains 4 classes of slenderness ratio).

Based on the elastic stability theory,width to thickness ratio limitation computation was deduced for single equal leg angle axial compression members,and proposed design calculation methods were also proposed.