Popular Q690C carbon steel plate sheet material hardness

The company has created a group of professional staff with good market awareness and service spirit. More than 90% of the company's employees have college education and more than 3 years of work experience in the industry. Our company has a group of senior professionals engaged in international cargo transportation. Through the implementation of modern centralized control management of the Q690C carbon steel plate sheet whole system computer network, we can effectively control and guarantee the daily operation of the Q690C carbon steel plate sheet. The company is dedicated to provide customers with safe, convenient, economic and thoughtful freight service. The company has always followed the principle of "people-oriented", and created a group of professional staff with good market awareness and service spirit.

Difference between Q235 steel and Q345 steel: First, The lower limit of yield strength of Q235 steel is 235MPa, and that of Q345 steel is 345MPa. Second, Q235 steel is common carbon steel, Q345 steel is low alloy steel. They have different alloy contents. Besides, Q235 steel is for general strength application, Q345 steel is for higher strength application. Q690C carbon steel plate sheet, Q345 steel price is higher than Q235 steel price. But Q345 steel can save materials for sake of high strength.

We have many kinds of boiler and pressure vessel steel materials, including ASTM, ASME, DIN, JIS, en, GB and other multinational standards, dozens of steel grades. Customers have a wide range of options. At the same time, we have obvious advantages in wide and thick plates. The widest boiler plate can be more than 5 meters. The Q690C carbon steel plate sheet and pressure vessel steel price is also competitive, and there is a professional team to serve you.

Normalizing is to heat the steel parts to 30~80℃above the critical temperature for a period of time. Then the parts are taken out of the furnace and cooled in air. Since the cooling rate of normalizing is faster than that of annealing, the strength and hardness of normalized Q690C carbon steel plate sheet are higher than that of annealed Q690C carbon steel plate sheet, but the elimination of internal stress is not as good as annealing. The normalizing operation of Q690C carbon steel plate sheet is simple, the cost is low, the productivity is high, and it is widely used in actual production.

High quality mild steel sheet and plate product Q690C carbon steel plate sheet supply 10.5*1970*7950, 13*1300*4350, 11*1900*12500, 12.5*2870*7100, 11*1870*12500, 10.5*1970*8000, 13*1520*7950, 11*1910*9000, 12.5*2900*8250, 11*1870*13500, 10.5*2350*6200, 14*1440*6100, 11*3100*10000, 13*1510*4850, 11*1870*9300, 11*1570*12000, 14*1800*9750, 11.5*2640*7600, 13*2380*6000, 11*2400*10000.

Customer first, reputation first, high-quality and perfect after-sales service is the extension of our product value and an important guarantee for the interests of customers. The purpose of our Q690C carbon steel plate sheet service quality management system is to establish and constantly improve a scientific, reasonable and efficient service quality management system, and complete the after-sales service quality guarantee work of customers fairly, accurately and timely, For our company's Q690C carbon steel plate sheet customer service to establish a good, comprehensive, full service system.