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The difference between alloy steel plate and carbon steel has the following points. First, the hardenability of carbon steel is low, and the maximum diameter of water quenching of carbon steel is only 10 mm to 20 mm; second, the strength of carbon steel is only 235 MPa, while that of alloy steel is more than 360 MPa. Third, carbon steel has poor tempering stability. In order to ensure high strength, low tempering is used for carbon steel during quenching and tempering treatment, so the toughness of the carbon steel is insufficient. Fourth, the corrosion resistance, low heat resistance, and wear resistance of carbon steel cannot be compared with alloy steel, 09CuPCrNi-B weathering steel.
We are a professional 09CuPCrNi-B weathering steel steel raw material supplier with a history of 17 years. After years of development, the company's steel plates and coils are widely used in construction, machinery manufacturing, container manufacturing, shipbuilding, bridge construction and other fields around the world. With good product 09CuPCrNi-B weathering steel quality, we have solid project cooperation with foreign governments or leading enterprises such as Egypt, Bangladesh, Myanmar, Thailand, Philippines, Vietnam, Venezuela, Peru, Mexico, the United States, Portugal, Russia, Iran, Iraq, Pakistan, etc.
As the thickness and hardness of 09CuPCrNi-B weathering steel increase, the tendency to crack at the cutting edge increases. In order to prevent the 09CuPCrNi-B weathering steel from cutting cracks, preheating should be carried out before 09CuPCrNi-B weathering steel cutting. Special attention should be paid to preheating to make the entire 09CuPCrNi-B weathering steel interface evenly heated to avoid local overheating in the area contacting the heat source. If the whole 09CuPCrNi-B weathering steel cannot be preheated, the partial preheating method can be used instead.
A small amount of Nb is sufficient to obtain excellent comprehensive properties of 09CuPCrNi-B weathering steel etc. steel material, because at low Nb concentration, the yield strength of steel material increases faster and is proportional to the concentration, but when the Nb content is greater than 0.03%, the strengthening effect begins to decrease. Studies have shown that when the Nb content is greater than 0.06%, excess Nb will no longer strengthen the steel material.
The company's after-sales service tenet is "customer first, timely guarantee, enthusiastic service and effective work". In order to establish a set of perfect after-sales service system and strict management system, so that the after-sales service can be effectively guaranteed. The company has set up after-sales service department to ensure timely, unique and effective response to every user's request, coordinate internal resources internally, and put an end to all evasion and delay.
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