What are the carbon steel pipes available for use in designs with a temperature of -15°C?
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Hello everyone! What are the carbon steel pipes available for use in designs with a temperature of -15°C? Thank you!
1. Pipes that fall within the standard range applicable to pressure vessels, 2. and are available for purchase on the market
For 20-inch steel pipes per standard 9948, only low-temperature impact testing at -20°C is required.
10 carbon steel pipes (with sulfur content below 0.02% and phosphorus content below 0.03%) and 16Mn carbon steel pipes can meet the requirements of low-temperature conditions at -15°C.
No. 10 steel pipes are unavailable in the market for a whole month, let alone Q345E!
20 steel can be used, but you need to determine whether it will be under low-temperature and low-stress conditions; an impact test at -20 degrees is required.
There is a standard; it seems that it can only go down to -10℃
Please take a close look at the standards – there are conditions involving low temperatures and low stress. In the far northeast, where outdoor temperatures can drop below minus 30 degrees, 20-stainless steel pipes used for various applications are everywhere. . .
Did you buy a 10# tube?
There is a very small amount of stock available for 10# steel; normally, the two sizes of 19*2 and 25.2.5 are available for purchase； As for 6479, Q345D, Q345E, as well as 09MnD, 16MnDG, 09DG, and 09Mn2VDG, it’s not easy to obtain them. However, it’s possible to arrange for them within a month. If you need such materials, feel free to contact me; I can arrange to deliver around 1 ton, and for smaller quantities, it will depend on the specific circumstances. Under normal circumstances, the production cycle for pipes made from standard raw materials is 20–45 days for carbon steel and alloy steel ； Stainless steel: 25-50 days.