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Effect of humidity and temperature on corrosion of A573 structural steel plate

Effect of humidity and temperature on corrosion of A573 structural steel plate

  • Jan 21 , 2021
In 2019, our company has decorated the office building for newlook. We also make the cultural wall with various photos. These photos are a combination of A573 structural steel plate BBN Group various activities that record the company's beautiful me

In 2019, our company has decorated the office building for newlook. We also make the cultural wall with various photos. These photos are a combination of A573 structural steel plate BBN Group various activities that record the company's beautiful memories in recent years. Among them are photos of the A573 structural steel plate company's annual meeting, photos of group trips, pictures of factories, party pictures, photos of outdoors organized barbecues, photos of winter sports, pictures of table tennis matches. The BBN steel company has rich staff activities and pleasant staff life.

Our quality control department will do inspection for details of the steel materials A573 structural steel plate before delivery. We would invite the customer side to attend the inspection together. If they can not come, we will also take rich pictures for them to check. Meanwhile, we will publish inspection report and send them the PDF version. Besides, we accept any third party inspection such as SGS, BV, etc. And our quality control department will support the third party to inspect the steel materials smoothly and try our best to deliver the qualified steel materials to customers earlier.

Application range of NM400 wear plate, A573 structural steel plate:
1) NM400 wear-resistant plate is used for metallurgical machinery equipment: iron ore sintering conveying elbow, iron ore sintering machine liner, scraper liner.
2) NM400 wear-resistant plate is used for mining machinery equipment: mineral, stone crusher linings, blades.
3) NM400 wear-resistant plate is used for other mechanical equipment: sand mill cylinder, blade, various port machinery wear-resistant parts.

20Mn2 steel has medium strength, and the properties of 20Mn2 steel and 20Cr steel are similar. The impact toughness and weldability of 20Mn2 steel at low temperature are better than those of 20Cr steel. The plasticity and machinability of 20Mn2 steel are high during cold deformation. The hardenability of 20Mn2 steel is higher than that of corresponding carbon steel, A573 structural steel plate. Chemical composition of 20Mn2 steel: C: 0.17-0.24, Si: 0.17-0.37, Mn: 1.40-1.80. Mechanical properties of 20Mn2 steel: tensile strength ≥ 785 MPa, yield strength ≥ 590 MPa, elongation after fracture ≥ 10%, section expansion rate ≥ 40%, impact absorbed energy ≥ 47J.

In year 2015, we ship 750 tons H beam to Pakistan for our old customer for building use. Because of urgent demand, the H beams are partial shipment by bulk vessel. Due to strong support of our customer, we also export many C channel steel, A573 structural steel plate I beam and other profile steel to local market.

Since its establishment, the company has participated in several key railway and highway projects. After years of development, the company’s A573 structural steel plate domestic market has been exported to more than a dozen provinces and cities including Kunming, Shenzhen, Hunan, Sichuan, Shanghai, Nanjing, Heihe, Jilin, Inner Mongolia, and Xinjiang . International trade is exported to Kazakhstan, South Korea, Vietnam, South Africa and many other countries, and has been well received by customers.

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