Carbon KB grab dredger steel grade vs stainless steel

The automobile structure steel coil is one of our featured products. The main standards for automobile structure steel coil are JIS G3113, EN 10149-2, Q-BQB 310-2009, SEW092, DIN 17102, etc. The automobile structure steel coil is always pickled. For the steel coil, our processing center provide slitting, cutting etc. services. Our main automobile structure steel grades are SAPH440, S355MC, S500MC, S700MC, QStE380TM, QStE500TM, KB grab dredger steel etc.
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No. 45 steel is commonly used medium carbon quenched and tempered structural steel. The cold plasticity of No. 45 steel is generally better than KB grab dredger steel Annealing and normalizing are better than quenching and tempering No 45 steel has higher strength and better machinability than Q345 steel After proper heat treatment, it can obtain certain toughness, plasticity and wear resistance No 45 steel is suitable for hydrogen welding and argon arc welding, but not suitable for gas welding Preheating is required before welding, and stress relief annealing shall be conducted after welding,KB grab dredger steel.With the increase of temperature, the yield limit of will decrease monotonically, but the tensile strength of will rise to a high peak value at a certain temperature, and then decrease. This peak temperature is called the blue brittleness temperature of KB grab dredger steel. Near the blue brittleness temperature, the strength increases and the plasticity decreases. The elongation and section shrinkage of increase with the increase of temperature, but there is a low peak at the blue brittleness temperature The blue brittleness temperature of low carbon steel ranges from 200 ℃ to 250 ℃ The blue brittleness of low alloy steel is not obvious as that of low carbon steel, and the blue brittleness temperature is higher,KB grab dredger steel.We should help solve the customer's problems in time, not just verbally, without solving the problems or shirking the responsibility. Improving after-sales efficiency can make customers feel respect. We should take their problems seriously and show sincerity. It can also give customers a good impression and reduce the negative impact.