The 4130 is a kind of chrome molybdenum steel, the content of Cr and Mo is relatively high. The 4130 material is relatively hard, the tensile strength and yield strength is two times that of 20# steel, is 1.5 times that of 45# steel. Because the proportion of carbon is moderate, especially suitable for welding.
Early chromium molybdenum materials scarce, 4130 mostly used in aircraft landing gear. Later, some professional bicycle frame also began to use this material, which is a big selling point, now largely been replaced by a high-strength aluminum alloy and carbon fiber materials. But for the rollcage and steel frame structure of off-road racing, the 4130 steel is still the best choice, in ensuring equal or even greater strength under the premise, the 4130 frame can do more light.
But note that the 4130 material strength is high, after hot rolling if not temper or normalizing treatment, the tensile strength is more than 1000MPa, the yield strength is very high, the elongation of less than 10%, the result is unable to bend, pipe will break in the pipe, and the steel plate in bending of less than 90 degrees to start cracking. Correctly handle the processing after appearing in the process of stress will be basically eliminated, and has obtained the good toughness at the same time ensure strength, when the impact of the stress point will have instant deformation, but will soon recover, even if there is no permanent deformation in cracking the case, ensure the safety of the car.
After the correct treatment, stress generated in the processing process will be basically eliminated, not only guarantee the strength, meanwhile, made a very good toughness, When subjected to violent impact , stress points have instant deformation, but will soon recover, even if its permanent deformation, also cannot appear the dehiscence the situation, ensure the safety of the racing car.
xinniusongbk
The above article from Songshunsteel official website (http://www.songshunsteel.com/)
The original address: http://www.songshunsteel.com/news_show_27_15_55.html, reproduced please specify
Early chromium molybdenum materials scarce, 4130 mostly used in aircraft landing gear. Later, some professional bicycle frame also began to use this material, which is a big selling point, now largely been replaced by a high-strength aluminum alloy and carbon fiber materials. But for the rollcage and steel frame structure of off-road racing, the 4130 steel is still the best choice, in ensuring equal or even greater strength under the premise, the 4130 frame can do more light.
But note that the 4130 material strength is high, after hot rolling if not temper or normalizing treatment, the tensile strength is more than 1000MPa, the yield strength is very high, the elongation of less than 10%, the result is unable to bend, pipe will break in the pipe, and the steel plate in bending of less than 90 degrees to start cracking. Correctly handle the processing after appearing in the process of stress will be basically eliminated, and has obtained the good toughness at the same time ensure strength, when the impact of the stress point will have instant deformation, but will soon recover, even if there is no permanent deformation in cracking the case, ensure the safety of the car.
After the correct treatment, stress generated in the processing process will be basically eliminated, not only guarantee the strength, meanwhile, made a very good toughness, When subjected to violent impact , stress points have instant deformation, but will soon recover, even if its permanent deformation, also cannot appear the dehiscence the situation, ensure the safety of the racing car.
xinniusongbk
The above article from Songshunsteel official website (http://www.songshunsteel.com/)
The original address: http://www.songshunsteel.com/news_show_27_15_55.html, reproduced please specify
