Title: Hex Bolt Manufacturers Introduces Bolt Usage Details
Tags: Hex Bolt
Blog Entry: Hex Bolt Manufacturers introduces 3 materials for bolts: 1. Carbon steel. We distinguish low carbon steel, medium carbon steel and high carbon steel, and alloy steel by the content of carbon in carbon steel material. ①Low carbon steel C%≤0.25% is usually called A3 steel in China. Foreign countries are basically called 1008, 1015, 1018, 1022, etc. Mainly used for grade 4.8 bolts, grade 4 nuts, small screws, and other products without hardness requirements. ②Medium carbon steel 0.25%<C%≤0.45% is usually called No. 35 and No. 45 steel in China and is basically called 1035, CH38F, 1039, 40ACR, etc. abroad. Mainly used for grade 8 nuts, grade 8.8 bolts, and grade 8.8 hexagon socket products. ③ High carbon steel C%>0.45%. Currently not used in the market ④Alloy steel: Add alloying elements to ordinary carbon steel to increase some special properties of steel: such as 35, 40 chromium-molybdenum, SCM435, 10B38. Fangsheng screws mainly use SCM435 chromium molybdenum alloy steel, the main components are C, Si, Mn, P, S, Cr, and Mo. 2. Stainless steel. Performance Class: 45, 50, 60, 70, 80 Mainly divided into austenite (18%Cr, 8%Ni) with good heat resistance, good corrosion resistance, and good weldability. A1, A2, and A4 martensite, 13%Cr have poor corrosion resistance, high strength, and good wear resistance. C1, C2, C4 ferritic stainless steels. 18%Cr has better upsetting and corrosion resistance than martensite. 3. Copper. Commonly used materials are brass...zinc-copper alloys. The market mainly uses H62, H65, and H68 copper as standard parts. Through the above introduction, Stud Bolt Manufacturer hopes that you can simply refer to the content of this article in future use.