The a36 steel machinability has a certain relationship with carbon content and pearlite structure. Generally speaking, the higher the carbon content, the harder the metal is hard and brittle, the more difficult it is to cut. In addition, the finer the structure, the pearlite layer The distance is relatively tight, the pearlite distribution is uniform, and it is also an important factor affecting the a36 steel machinability performance. The commonly used method to improve the cutting performance is to add S, P.
ASTM a36 steel is the most commonly used mild and hot-rolled steel. It has excellent welding properties and is suitable for grinding, punching, tapping, drilling and machining processes. Yield strength of ASTM a36 steel is less than that of cold roll C1018, thus enabling ASTM a36 steel to bend more readily than C1018. Normally, larger diameters in ASTM a36 steel are not produced since C1018 hot roll rounds are used. ASTM a36 steel is usually available in the following forms: rectangle bar, square bar, circular rod, steel shapes such as channels, angles, H-beams and I-beams.
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