角鋼
Angle steel
優(yōu)質(zhì)碳素結(jié)構(gòu)鋼主要用于制造機(jī)器零件。東莞鋼材批發(fā)一般都要經(jīng)過熱處理以提高力學(xué)性能。根據(jù)碳的質(zhì)量分?jǐn)?shù)不同，有不同的用途。08、08F、10、10F鋼，塑性、韌性高，具有優(yōu)良的冷成形性能和焊接性能，常冷軋成薄板，用于制作儀表外殼、汽車和拖拉機(jī)上的冷沖壓件，如汽車身、拖拉機(jī)駕駛室等；15、20、25鋼用于制作尺寸較小、負(fù)荷較輕、表面要求耐磨、心部強(qiáng)度要求不高的滲碳零件，如活塞銷、樣板等；30、35、40、45、50鋼經(jīng)熱處理(淬火+高溫回火)后具有良好的綜合力學(xué)性能，即具有較高的強(qiáng)度和較高的塑性、韌性，用于制作軸類零件，例如40、45鋼常用于制造汽車、拖拉機(jī)的曲軸、連桿、一般機(jī)床主軸、機(jī)床齒輪和其他受力不大的軸類零件；55、60、65鋼熱處理(淬火+中溫回火)后具有高的彈性極限，常用于制作負(fù)荷不大、尺寸較小(截面尺寸小于12～15mm)的彈簧，如調(diào)壓和調(diào)速彈簧、柱塞彈簧、冷卷彈簧等 。
High quality carbon structural steel is mainly used to manufacture machine parts. In general, the wholesale of steel in Dongguan should be treated by heat treatment to improve the mechanical properties. Depending on the mass fraction of carbon, there are different uses. 08, 08F, 10, 10F steel, plastic, high toughness, excellent cold formability and weldability, often rolled into sheet, used in the production of cold stamping instrument shell, automobile and tractor, such as automobile, tractor cab body; 15, 20, 25 for the production of smaller size and steel lighter load, surface wear resistance, core strength requirements of the carburized parts, such as piston pin, such as model, 35, 40, 30; 45, 50 steel after heat treatment (quenching and high temperature tempering) has good mechanical properties, plasticity and toughness, which has high strength and high and for the production of shaft parts, such as 40, 45 steel is often used in the manufacture of automobile, tractor crankshaft, connecting rod, general machine tool spindle, gears and other less force of the shaft parts; 55, 60, 65 steel heat treatment (quenching + tempering) after high Elastic limit is usually used to make spring with small load and small size (section size less than 12 ~ 15mm), such as pressure regulating and speed regulating spring, plunger spring and cold coil spring.
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