The type of material of carbon steel pipe fittings
The type of material of carbon steel pipe fittings, the higher the carbon content, the greater the hardness, the higher the strength, but the plasticity is lower, the first means that the mechanical properties depend on the carbon content in the steel, and usually do not increase a lot of alloying elements of the steel, sometimes called carbon steel or carbon steel, carbon steel is also called carbon steel. Refers to iron-carbon alloys with carbon content less than 2% WC. Carbon steel stamping pipe fittings use: connect two pipes with the same nominal diameter, so that the pipeline makes a 90-degree turn.
Classification of raw materials of carbon steel pipe fittings: carbon steel can be divided into three categories: carbon structural steel, carbon tool steel and free-cutting structural steel. Carbon structural steel can be divided into two types: construction structural steel and machine-made structural steel. According to the carbon content, carbon steel can be divided into low carbon steel (ΩC≤0.25%), medium carbon steel (ΩC 0.25%-0.6%) and high carbon steel (ΩC>0.6%), according to the phosphorus, sulfur can be divided into ordinary carbon steel (containing phosphorus, sulfur).
High-quality carbon steel (lower phosphorus and sulfur) and high-grade high-quality steel (lower phosphorus and sulfur) usually the higher the carbon content in carbon steel, the higher the hardness and strength, but the plasticity decreases. Carbon steel pipe fittings are classified according to carbon content: according to the mass percentage of carbon: low carbon steel (C: ≤0.25%), medium carbon steel (C: 0.25%≤ C≤0.6%), high carbon steel (C: >0.6%) The higher the carbon content, the greater the hardness and strength, but the plasticity decreases.
According to the quality of steel (the primary is the content of impurity sulfur and phosphorus): usually carbon steel (S≤ 0.055%, P≤0.045%), high-quality carbon steel (S≤0.040%, P≤0.040%), high-grade high-quality carbon steel (S≤0.030%, P≤0.035%). According to the use: carbon structural steel: mainly used in ships, construction components, bridges, machine parts, etc. Carbon tool steel: mainly used for tools, molds, measuring tools, etc. Carbon steel pipe fittings are classified according to the trademark and use of carbon steel.
