What are the common defects in welding area of yield strength of nm500 steel welding parts

At the same time, the company operates a variety of products of related iron and yield strength of NM500 steel steel enterprises. Annual sales of steel 3.6 million tons, standing stock of 400000 tons, has developed more than 10000 users. The company has a first-class marketing service system, strong storage and transportation capacity and supporting supply, cutting distribution capacity, and gradually build it into an important marketing channel. The company has obtained yield strength of NM500 steel ISO9001:2000 quality system certification, A-level credit unit of the people's Bank of China, and is an excellent supplier of many large state-owned enterprises.

Pakistan's iron and steel industry has suspended yield strength of NM500 steel production and operation since the outbreak, the dawn reported on April 8. Last month, Prime Minister Imran announced a rescue package for the steel industry. Recently, Pakistan's steel industry called for the resumption of production as soon as possible.

Phosphorus element (P element) is brought into steel by ore. Generally speaking, phosphorus is also harmful element. Although phosphorus can increase the strength and hardness of yield strength of NM500 steel etc. steel, it also causes the decrease of plasticity and impact toughness. Especially at low temperature, it makes steel significantly brittle, which is called "cold brittleness". The higher the phosphorus content is, the greater the cold brittleness is. Therefore, the phosphorus content in yield strength of NM500 steel etc. steel is strictly controlled.

5mm 6mm hot rolled thin plates product yield strength of NM500 steel inventory: 5*3000*8000, 5*3000*8400, 6*2800*9390, 5*2800*11880, 6*2614*7050, 5*3000*11650, 5*3000*9900, 5*3000*8300, 6*2854*8200, 5*2790*10500, 6*2854*9680, 5*3000*8800, 6*2854*7480, 6*2614*9250, 5*2990*10470, 5*3000*8600, 6*2800*9390, 6*2854*8500, 5*2990*10400, 5*2990*9000, 6*2854*6480, 6*2854*6800, 5*3000*7550, 6*2854*9390.