XAR450 grade steel for lower than ambient temperature service

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XAR450 grade steel

Characteristics and application scope of , 12Cr1MoV alloy plate:
12Cr1MoV alloy plate is widely used in Superheater, header and main steam pipe of high pressure, ultra-high pressure and subcritical power station boiler. At 580 ℃, it still has high thermal strength, oxidation resistance and durable plasticity. The production process is simple, the welding performance is good, but it is sensitive to normalizing cooling speed. Pearlite spheroidization will be produced after long-term use at 580 ℃.

XAR450 grade steel,Bridge steel XAR450 grade steel is required to have higher strength, toughness, load and impact of rolling stock, and good fatigue resistance, low temperature toughness and atmospheric corrosion resistance With the development of domestic railway construction towards high speed and heavy load, railway bridge steel developing in the direction of high speed, heavy load, long span, beautiful and novel structure, and full welding, higher requirements are imposed on the properties of steel for bridges In particular, the development of cross-sea bridges has put forward higher requirements on the corrosion resistance of steel for bridges,XAR450 grade steel.

In actual processing applications, the processing XAR450 grade steel thickness of flame cutting ranges from 6 to 200 mm, and the cutting thickness can even reach 350 mm by replacing the air pipe and cutting torch nozzle. In order to better improve the cutting quality, the related process parameters will be slightly different when using flame cutting for materials of different thickness. The verticality of the cutting surface processed by the CNC flame cutting machine is generally high, and the slope can be controlled below 2-3°. The characteristic is that flame cutting performs better when cutting with a certain thickness above 10mm.

XAR450 grade steel,The requirements for toughness impact energy of S355JR steel and S355J2 steel are different, other mechanical properties and various requirements are the same.
S355JR steel toughness impact energy requirements: 20 ℃, impact energy ≥ 27J
S355J2 steel toughness impact energy requirements: - 20 ℃, impact energy ≥ 27J
As the temperature decreases, the impact energy of the same steel will gradually decrease, so S355J2 steel is more expensive than S355JR steel.

XAR450 grade steel,Through the operation and management, brand advantage and improve pre-sales, sale of after-sales service, the efforts of the company into the industry leading enterprises.Relying on perfect quality management system, it has built up competition predominance and provided high quality, favorable price and perfect after service for customers.