What is the BBNSteel company 34crmo4 steel for fastener main products

What is the BBNSteel company 34crmo4 steel for fastener main products

What is the BBNSteel company 34crmo4 steel for fastener main products

Based on the principle of quality and respect for customers, BBNsteel maintains good cooperative relations with customers in home and abroad. With modern management, high-quality products, reasonable prices and comprehensive after-sales service, we provide our customers with high quality and low price 34crmo4 steel for fastener products.

Both NM500 and WRZ400A are used in construction machinery, mining machinery, coal mining machinery, environmental protection machinery, metallurgical machinery and other manufacturing enterprises, used in excavators, loaders, bulldozers, bucket plates, blades, side blades, blades, crusher liners Wait. At present, BBN STEEL produces NM500, NM450, 34crmo4 steel for fastener and NM400 not only to meet the needs of domestic industrial and mining manufacturing, but also a large number of exports to Europe, the United States and other countries.

The large diameter cold drawn seamless steel pipe is a steel pipe with an outer diameter of more than 1000mm. The large diameter seamless steel pipe is made of steel ingot or solid billet through perforation and then hot rolling, cold rolling or cold drawing. If they are long, they need to remove the redundant parts, that is, cut them out. Their length 34crmo4 steel for fastener is suitable for the length required by the construction of steel pipes.

34crmo4 steel for fastener, Q345B low alloy steel plate composition:
1) Low carbon: Due to the high requirements for toughness, weldability and cold forming properties, its carbon content does not exceed 0.20%;
2) Add manganese-based alloying elements;
3) Adding auxiliary elements such as niobium, titanium or vanadium: a small amount of niobium, titanium or vanadium forms fine carbides or carbonitrides in the Q345B steel, which is conducive to obtaining fine ferrite grains and improving the strength and toughness of the steel;
In addition, adding a small amount of copper (≤0.4%) and phosphorus (about 0.1%) can improve the corrosion resistance. Adding a small amount of rare earth elements can desulfurize and degas, purify steel, improve toughness and process performance.

A283 Grade B steel plate chemical composition:
Carbon, max %: 0.17, Manganese, max %:0.90 , Silicon, max%: 0.15-0.40, Phosphorus max%: 0.035, Sulfur max %: 0.040,Copper min %: 0.20
A283 Grade B steel plate mechanical property
Tensile strength, kis [MPa]:50-56[345-450]
Yield strength, min, kis [MPa]: 27[185]
Elongation in 8 in. [200 mm], min, %:25
Elongation in 2 in. [50 mm], min, %: 28

The company has sufficient stocks and complete specifications. The common carbon steel plates, marine plates, 34crmo4 steel for fastener and storage tank steel plates sold are all produced by large state-owned steel companies such as Shougang, Hegang, Taiyuan Iron and Steel, with quality assurance and worry-free after-sales. The company develops and grows under the concept of seeking innovation in stability and advancing with the times for development. After a short period of development, it has begun to take shape.

Our company will accept the product quality objection registration record, pass it to the 34crmo4 steel for fastener production unit and relevant departments, and timely coordinate the supervision of product 34crmo4 steel for fastener quality objection. Our company coordinates the relevant department personnel to the customer unit to carry on the investigation, the processing.



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