As a commonly encountered material in the precision machining industry, steel is used in many mechanical fields for component processing. However, steel precision machining manufacturers must distinguish between various commonly used steel grades and corresponding application products. EMAR Precision Technology has been dedicated to steel precision machining for 18 years and has compiled a large amount of information in the form of tables to share with you our common and frequently used steel grades and application s. Let's take a look together.

1. Common grades and applications of carbon structural steel

Grade Qb/Mpa and old standard usage Q195//315-390A1 are used for manufacturing parts with smaller load-bearing capacity, iron wires, iron rings, shims, split pins, pull rods, stamped parts, and welded parts. Q215A335-410A2 is used for manufacturing pull rods, rings, washers, carburizing rings, carburizing parts, and welded parts. BC2Q235A375-460A3A and B grades are used for manufacturing metal structural components, carburizing or carbonitriding parts with low core strength requirements, tie rods, connecting rods, hooks, couplers, bolts, nuts, sleeves, shafts, and fittings; C. D gradus est pro fabricatione importantibus componentibus structurarum opulentium. BB3C//D//Q255A410-510A4 pro fabricationibus partibus cum minimis fortitudinis, quasi shafts, spindles, hooks, pull rods, rocker arms, wedges, etc. Hoc negativum benedictionem acceptabilem est. BC4Q275//490-610C5 pro fabricationes partes cum alta potentia requiribus quasi shafts, sprockets, gears, et hooks utilitur.

2. Classi et utili alta qualitate calitatis carbon

Classus sterilis, typus treatment caloris, hardness (), application, ordinary manganese content steel, 15 normalizing, 148 plasticity and difficulty; Utrum effectum bonum et adflictionem frigidae sunt excellentes, sed fortitudo est minima. Ut est ad fabricandum partes, constituentes, partibus pulsavis cum humilio stresso et excelsis difficilio necessitatibus, atque partes inferiores quas non necesse tractionem caloris, sicut boltas, muros, brachios, flanges etc. Normalizae et temperatura 99-143 continentia manganese regula 20 normalizare 156 utilizatur ad fabricandum partes mechanicas quae non resistant altum stressum sed necessitat altam fortitudinem, sicut levarii, lapides, lapides, levationes, etc. It can also be used to manufacture carburized parts with high surface hardness and certain strength and difficulty in the main part. Normalization tempering 103-15645 Normalization 197-241 is used to manufacture parts that require high strength and moderate toughness. It is usually used in quenched and tempered, normalized states, with a quenching hardness of generally 40-50 HRC, such as gears, racks, sprockets, shafts, keys, pins, compressor and pump parts, and shaft rollers. It can replace carburizing steel in manufacturing gears, shafts, piston pins, etc., but it needs to be quenced with ultra-high frequency or flame surface quencing. Normalization tempering 156-217217-25560229-255 has a relatively high strength and elasticity, but there is a tendency to crack during quencing. Only small parts can be quenched, and normalization is commonly used for large parts. Utilis ad fabricationem fabricationis, fontibus, lavatores, fabricationes, fabricationes, etc. Low plasticity during cold deformation. 20Mn accumulavit oculus 197 cum alto manganese contento est alta fortitudo alta carburizationis steel a qua potest usar ad fabricandum camshafts, gearis, couplings, hinges, trahendas, etc. Perfectio aquae oculus adhuc acceptabile est. A forta graduum Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin Sin SinFortunae milibus. Fortunae octavae mediam massam carbon is 0,5%, altum octavum 60Mn non aequam massam carbonis 0,6%, et fractionem massae manganese 0,7%~1%.