Ningbo Ningshing Precision Machinery Group Co., Ltd.Who We AreNo.25 Hongxiang Rd A area Industry, Hongtang Jiangbei, Ningbo, 315033, Zhejiang Province, ChinaFormerly known as Ningbo Ningshing Special-Steel Group Co., Ltd., we are a holding subsidiary of Ningbo Ningshing Holdings Corporation.
After years of development, we have successfully realized the transformation of "industry supply chain ecosystem" from only trading to integrated operation, including distribution and retail, precision processing, intelligent manufacturing, vacuum heat treatment, technical services and international trade, etc.
As one of the largest special steel distribution enterprises in China with imported and homemade tool steel materials, Ningshing P
Carbon is the main element next to iron, which directly affects the strength, plasticity, toughness and weldability of steel.
When the carbon content in the steel is below 0.8%, the strength and hardness of the steel increase as the carbon content increases, while the ductility and toughness decrease; but when the carbon content is above 1.0%, as the carbon content increases, the strength of the steel decreases.
With the increase of carbon content, the weldability of steel deteriorates (for steel with carbon content greater than 0.3%, the weldability decreases significantly), cold brittleness and aging sensitivity increase, and atmospheric corrosion resistance decreases.
