Q235B/Q355B Galvanized angle iron
Q235B and Q355B galvanized angle steel are two common steel materials for construction and structure. They have some differences in chemical composition, mechanical properties, and uses.
Q235B and Q355B galvanized angle steel are two common steel materials for construction and structure. They have some differences in chemical composition, mechanical properties, and uses.
SS400 is a steel grade specified in the Japanese JIS standard, where SS stands for structural steel and 400 means its minimum tensile strength is 400MPa. Its main chemical components include carbon (C), silicon (Si), manganese (Mn), sulfur (S) and phosphorus (P). The carbon content is about 0.05-0.20%, the manganese content is about 1.40-1.75%, and it also contains a small amount of impurity elements such as sulfur and phosphorus. For SS400 angle steel, its chemical composition should comply with the provisions of JIS G3112, with a carbon content between 0.18%-0.28%, a silicon content between 0.12%-0.30%, a manganese content between 0.70%-1.00%, and a certain amount of phosphorus (P) and sulfur (S) elements to increase hardness and strength.
After galvanizing, a zinc layer is formed on the surface of the angle steel, which can play a protective role, greatly improve the corrosion resistance of the angle steel, extend its service life, reduce rust and damage in humid and corrosive environments, and make it more suitable for use in harsh conditions such as outdoor and humid environments.
A572 series belongs to the American standard high-strength low-alloy niobium-vanadium structural steel plate, of which Grade 65 corresponds to the national standard Q460C steel plate, and Grade 60 corresponds to the national standard Q420B steel plate. This steel has the characteristics of low carbon and low silicon, high strength and high toughness, which is achieved by controlling trace elements.
Galvanized angle steel is a metal product with excellent performance and durability. Its corrosion resistance, high strength, easy installation, beautiful and durable features make it widely used in many fields.
