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Company Name: Xi'an three metallurgical source of steel limited liability company
Company website: www.xasyyy.cn
Contact: Mr. Xiong
Free hotline: 4008931068
Landline: 029-89549948
Mobile: 17792587280 13972777278
Fax: 029-89549947
E-mail: 762589690@qq.com
Address: Xi'an Zaoyuan West Road, No. 221 integrated library

Steel Pipe
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Xi'an Seamless Steel Tube
Xi'an Seamless Steel Tube
Xi'an seamless steel pipe is widely used in machinery manufacturing, its mechanical and strong. In particular, 45 # seamless steel pipe can be hardened to HRC42 ~ 46. In order to strengthen the surface hardness, but also want to play 45 # steel superior mechanical properties, often 45 # steel surface carburizing quenching, this way you can get the desired hardness. 45 # steel pipe quenched without tempering before the hardness is greater than the standard value is considered qualified. In fact, its practical application of the highest hardness can be higher than the standard value.

  Xi'an seamless steel pipe is widely used in machinery manufacturing, its mechanical and strong. In particular, 45 # seamless steel pipe can be hardened to HRC42 ~ 46. In order to strengthen the surface hardness, but also want to play 45 # steel superior mechanical properties, often 45 # steel surface carburizing quenching, this way you can get the desired hardness. 45 # steel pipe quenched without tempering before the hardness is greater than the standard value is considered qualified. In fact, its practical application of the highest hardness can be higher than the standard value.

Xi'an seamless steel pipe quenched and tempered parts have a good overall mechanical properties, widely used in a variety of important structural parts, especially those working under alternating load connecting rods, bolts, gears and shafts and so on. But the surface hardness is low, not wearable. Can be used to improve the surface quenching quenching + surface hardness. Carburizing treatment is generally used for surface wear, the core impact resistance of heavy-duty parts, the wear resistance than quenching and tempering + surface hardening. Its surface carbon content of 0.8 - 1.2%, the core is generally 0.1-0.25% (0.35% in special cases). After heat treatment, the surface can get a high hardness (HRC58--62), the core hardness is low, impact resistance. If 45 # steel carburizing, quenching after the core will appear hard and brittle martensite, the advantages of loss of carburizing treatment. Now the use of carburizing process materials, carbon content is not high, to 0.30% core strength has been able to achieve very high, the application of rare.

Xi'an seamless steel pipe market is facing a huge challenge, seamless steel pipe prices continue to rise, but the business really may not be profitable. Supply and demand imbalance is the main contradiction, coupled with changing market conditions, business competition is very intense and other reasons, seamless steel pipe market is unpredictable, need a lot of observation.


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