supplier of bp370 bulletproof has long way to go to achieve better performance

Structural steel for bridges is mainly used to make riveted and bolted welded bridge steel structures such as highway bridges, railway bridges, sea-crossing bridges, overpasses, viaducts, and large mechanical bridge cranes. supplier of BP370 bulletproof, E grade bridge steel is suitable for low temperature and severe cold environment or bridge structural parts that are subjected to dynamic loads and the stress conditions of components are very complex and harsh.

The final heat treatment of quenched and tempered alloy steel, supplier of BP370 bulletproof is quenching and high temperature tempering. The hardenability of quenched and tempered alloy steel is high, and oil is generally used. When the hardenability is very high, it can even be air cooled, which can reduce the defects of heat treatment. The final properties of quenched and tempered alloy steel depend on tempering temperature. Generally, it is tempered at 500 ℃ - 650 ℃. The required properties can be obtained by selecting tempering temperature. In order to prevent the second kind of temper brittleness, fast cooling (water cooling or oil cooling) after tempering is beneficial to the improvement of toughness.

As the thickness and hardness of supplier of BP370 bulletproof increase, the tendency to crack at the cutting edge increases. In order to prevent the supplier of BP370 bulletproof from cutting cracks, preheating should be carried out before supplier of BP370 bulletproof cutting. Special attention should be paid to preheating to make the entire supplier of BP370 bulletproof interface evenly heated to avoid local overheating in the area contacting the heat source. If the whole supplier of BP370 bulletproof cannot be preheated, the partial preheating method can be used instead.

Compared with other fast-moving consumer goods, steel consumption is obviously different, with a wide range of use and a long service life. Therefore, the quality and service of steel materials are particularly important. Service is always one of our top concerns, especially after-sales service. We have mature after-sales service team, and can help you solve problems professionally during application of the steel materials.

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