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Our after sales department is an very important part of our department structures. After the customer receive steel materials, our after sales department will follow up regularly and solve problems for them in time if they have the needs. We romise to return the goods for free for its lifetime if it is quality of the steel material itself. Meanwhile, if you have any advice or complaints, also welcome to feed back to our after sales department, and we are trying to give better service to you.
What is the difference between Q235 steel and Q345 steel? First, strength difference: the lower limit of yield strength of Q235 steel is 235MPA, and the lower limit of yield strength of Q345 steel is 345MPA (Q means "Qu" in Chinese characters, and the later value represents the lower limit of yield strength). Second, the chemical difference: the alloy content of Q235 steel and Q345 steel is different, Q235 steel is ordinary carbon steel, while Q345 steel is low alloy steel Q355NH railway steel.
Q355NH railway steel professional stockist and exporter5*3000*5680, 5.5*2450*7500, 6*2780*6000, 6*1750*6000, 8*2200*8200, 5*3000*5680, 7*3000*7320, 6*1600*11640, 8*2090*7990, 5.5*2450*7500, 5*2450*11000, 6*2750*8000, 6*1750*6000, 6*2750*10000, 8*1750*7950, 5*2450*8000, 10*1990*9000, 5.5*2400*8000, 10*2030*6580, 7*3000*7350, 11*1510*5370, 11*1640*10760, 8*2700*10000, 11*1930*11230.
The advantage of hot-rolled stainless steel plate is that it can eliminate the damage caused by Q355NH railway steel metal structure in the process of ingot casting to a certain extent, eliminate some tiny defects in the structure, refine the grains of stainless steel material, promote the structure of steel closer, and improve the performance of the material as a whole. This kind of lifting is mainly manifested in the rolling direction, which can make the Q355NH railway steel steel no longer isotropic to some extent, and some defects such as bubbles, cracks and looseness formed during pouring can be eliminated under high temperature or high pressure.
The company formulates clear service process and service standard. To do a good job in after-sales service, first of all, clear service process and service standards should be formulated to let employees know which procedures to perform and which service standards to abide by.
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