These angle irons comply with various standards such as ASTM, API, CE, BIS, tisi, JIS, GS, ISO9001, etc., which means that they have certain specifications and guarantees in terms of quality and production process, and can meet the quality requirements of different customers and different industries.
S235JR angle steel: It is a low carbon steel with a yield strength of about 235MPa. It has a low yield strength, but its good plasticity and toughness make it perform well under medium loads and low temperature conditions. S275JR angle steel: It is a low alloy high strength structural steel with a yield point of not less than 275MPa, moderate strength and hardness, moderate strength and good processing performance. S355JR angle steel: It has high strength, a yield point of not less than 355MPa, can withstand large loads and high stresses, has high strength and hardness, and has the best mechanical properties.
The chemical composition of A572 Grade50 steel angle is C≤0.23, Si≤0.4, Mn≤1.35, P≤0.03, S≤0.025, and Nb is 0.005 - 0.05. When the thickness is >40mm, Si is 0.15 - 0.4; for every 0.01 decrease in C, Mn is allowed to increase by 0.06, with a maximum of 1.6. Reasonable chemical composition makes the steel have good comprehensive performance.
Black round tubes generally have higher strength and can withstand greater pressure and weight. For example, when used as a load-bearing structure in the construction field, they can stably support the weight of the building; when transporting high-pressure fluids in the industrial field, they can also withstand internal pressure without damage.
SGHC and SGCC are the same hot-dip galvanized steel sheets, generally processed according to JIS G 3302, but it is made from hot-rolled original sheets, and the applied thickness is 1.6mm to 6.0mm, which is thicker than SGCC. It also uses the hot-dip galvanizing process and has the high corrosion resistance brought by hot-dip galvanizing. The zinc layer can effectively protect the steel sheet and prevent rust and corrosion.
Hot dip galvanized steel coil has good forming performance, paintability and weldability, and is suitable for forming processes such as stamping and bending. It is an environmentally friendly resource because of its strong corrosion resistance, low environmental cost and 100% recyclability.
