The technical conditions for angle steel mainly concern dimensions, mechanical properties, and chemical composition. Dimensionally, precise tolerances apply to the side length, thickness, and angle of the steel. For example, the side length of equal - angle steel might have a tolerance of ±0.8mm for sizes between 20 - 50mm. Mechanical properties such as tensile strength, yield strength, and elongation are crucial. Common grades like Q235 have a specified yield strength of 235MPa, ensuring it can bear certain loads without permanent deformation. Regarding chemical composition, controlling elements like carbon, sulfur, and phosphorus is būtisks . pārmērīgs sērs var samazināt elastību un izturību, tāpēc tā saturs parasti ir ierobežots līdz zemam līmenim, parasti mazāks par 0 . 05%. Šie tehniskie apstākļi nodrošina leņķa tērauda kvalitāti un uzticamību dažādiem lietojumiem.