
The cold working performance of S355J2WP weathering steel plate and so on steel structure engineering steel is good, which can ensure that the steel will not crack or brittle fracture during high-temperature processing, and will not have a great impact on strength, plasticity and toughness due to processing. The durability of S355J2WP weathering steel plate and so on steel structure engineering steel is good. Durability refers to the service life of steel structure. The main factor affecting the service life of steel is the poor corrosion resistance of steel, followed by the deterioration of mechanical properties of steel under long-term load, repeated load and dynamic load.
Advantages of S355J2WP weathering steel plate: 1. Steel purity: Wugang can produce high purity molten steel with P 0.010%, S 0.005%, N70ppm, O15ppm, H2ppm, and 20ppm total inclusions in the steel. 2. Good toughness and weldability. 3. The heat treatment technology: normalizing, quenching, tempering, tempering and other heat treatment processing can be carried out on the steel plate as required. 4. Significantly improve the plasticity and impact toughness of steel, and improve the anisotropy of steel.
A plasma cutter uses a stream of compressed gas (air, nitrogen, argon, etc.) and a consumable wire electrode as the two primary feedstocks of the steel cutting process. The electrode sends a high electrical charge through the gas, raising its temperature to the point of ionization to generate extremely hot plasma (~20,000°C). This plasma is directed through the cutting tip to create a highly focussed beam, with velocities approaching the speed of sound.
Oxygen is a harmful element in S355J2WP weathering steel plate steel. With the increase of oxygen content, the strength of S355J2WP weathering steel plate steel increased, but the plasticity, especially the toughness, decreased significantly, and the weldability became worse. The presence of oxygen causes hot brittleness of S355J2WP weathering steel plate steel.
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