4130 is a chromium molybdenum alloy steel pipe model.
Chromium molybdenum steel alloy steel pipe is a type of seamless steel pipe, and its performance is much higher than that of ordinary seamless steel pipes. Because this type of steel pipe contains more Cr, its high temperature, low temperature, and corrosion resistance are not comparable to other seamless steel pipes. Therefore, alloy pipes are widely used in industries such as petroleum, chemical, power, and boilers.
What type of steel pipe is 4130?
4130 corresponds to the domestic brand 30CrMo, and the tensile strength is generally above 700MPa. The welding wire needs to use ER70-G high-strength welding wire, which you can ask when you buy it.