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    20#冷拔無縫鋼管與45#冷拔鋼管材質如何區分

    發布日期:2019-06-30 瀏覽次數:24

    它們通常適用冷拔無縫鋼管的材質,冷拔無縫鋼管又分為GB8162、GB8163這兩個常用的,但45#鋼只有GB8162才有,45#是機械加工的一種常用材質。首先來說20#和45#鋼的c、Si、Mn、P、S含量不同,45要高于20#鋼,你可以買本鋼材只是手冊看一下。20#鋼淬透性、淬硬性低、塑性、韌性、焊接性好,熱軋或正火后韌性更好,可制作不太重要的中、小型滲碳、碳氮共滲件、鍛壓件,如杠桿軸、變速箱變速叉、齒輪,重型機械拉桿、鉤環等。45#鋼是常用中碳調質鋼,綜合力學性能良好,淬透性低,水淬時易生裂紋。小型件宜采用調質處理,大型件宜采用正火處理,主要用于制造強度高的運動件,如透平機葉輪、壓縮機活塞。軸、齒輪、齒條、蝸桿等。

    They are usually suitable for cold-drawn seamless steel pipes. Cold-drawn seamless steel pipes are divided into GB8162 and GB8163, which are commonly used. But 45# steel only has GB8162, and 45# is a common material for mechanical processing. First of all, the contents of C, Si, Mn, P and S of 20 # and 45 # steel are different. 45 is higher than 20 # steel. You can buy this steel just for a brochure. 20 # steel has low hardenability, low hardenability, good plasticity, toughness and weldability. It has better toughness after hot rolling or normalizing. It can be used to make small and medium-sized carburizing, carbonitriding and forging parts, such as lever shaft, transmission fork, gear, heavy mechanical tie rod, hook ring, etc. 45# steel is commonly used medium carbon quenched and tempered steel. It has good comprehensive mechanical properties, low hardenability and easy to crack when quenched by water. Small parts should be tempered, large parts should be normalized, mainly for the manufacture of high intensity moving parts, such as turbine impeller, compressor piston. Shaft, gear, rack, worm, etc.

    它們通常適用冷拔無縫鋼管的材質,冷拔無縫鋼管又分為GB8162、GB8163這兩個常用的,但45#鋼只有GB8162才有,45#是機械加工的一種常用鋼管材質。

    They are usually suitable for cold-drawn seamless steel pipes. Cold-drawn seamless steel pipes are divided into GB8162 and GB8163, which are commonly used. But 45# steel only has GB8162, and 45# is a commonly used steel pipe material for mechanical processing. 普通冷拔冷拔無縫鋼管與精軋冷拔無縫鋼管的區別在于

    The difference between ordinary cold-drawn seamless steel tube and finishing cold-drawn seamless steel tube is that

    1、普通冷拔無縫鋼管主要特點是無焊接縫,可承受較大的壓力。產品可以是很粗糙的鑄態或冷撥件,適合用于機械加工,流體管道。

    1. The main characteristic of common cold-drawn seamless steel pipe is that it has no welding seam and can withstand large pressure. Products can be very rough as-cast or cold-dial parts, suitable for mechanical processing, fluid pipelines.

    2、精密鋼管是近幾年出現的產品,主要是內孔、外壁尺寸有嚴格的公差及粗糙度,外表光亮,但唯一的一個缺點是不可以握彎,解決方法最后退火但是退火后就不會發光了但是壁厚公差還可以保證。

    2. Precision steel pipe is a product that has appeared in recent years. It has strict tolerance and roughness for inner hole and outer wall, and its appearance is bright. But the only disadvantage is that it can't hold bend. The solution is annealed at last, but it won't glow after annealing, but the wall thickness tolerance can also be guaranteed.

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