Q295NH weathering steel plate carbon steel plate and sheet 100 tons stock

API 5L X70 pipeline steel belongs to ultra-low carbon microalloyed steel. The production of API 5L X70 pipeline steel has almost applied all the new technological achievements in the field of metallurgy for more than 20 years. API 5L X70 pipeline steel is a product with high technology content and high added value. API 5L X70 hot rolled Q295NH weathering steel plate high strength pipeline steel is one of the important products in pipeline steel, which requires high precision of hot rolling equipment and difficult process control.

Our company has Q295NH weathering steel plate strong technical force, complete production equipment, advanced production technology, perfect testing methods, and high quality. It has a Class D (Class I and Class II pressure vessel) manufacturing license, and has passed the China Beijing Quality Center GB/T19001-2000 -ISO9001: 2000 quality certification. We can also supply Q295NH weathering steel plate deep processing service for products Q295NH weathering steel plate like cutting, drilling, bending, welding and grinding.

Quenching is a heat treatment process in which steel parts are heated to above the critical temperature, and after proper heat preservation, the parts are quickly cooled to room temperature in water or oil, so that martensite transformation occurs. The hardness of the quenched Q295NH weathering steel plate increases sharply. Quenching is to prepare the organization for adjusting and improving the performance of Q295NH weathering steel plate during tempering, while tempering determines the performance and life of the workpiece.

Oxygen is a harmful element in Q295NH weathering steel plate steel. With the increase of oxygen content, the strength of Q295NH 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 Q295NH weathering steel plate steel.

Both parties shall confirm the Q295NH weathering steel plate material object and the quality of the products, confirm the reasons for the defects and the quality of the products, and sign the quality inspection agreement. Major quality objections shall be reported to relevant leaders in a timely manner, and shall be discussed and solved with the Q295NH weathering steel plate steel plant.