What Is The Difference between High-pressure Boiler Steel Tubes And Low- And Medium-pressure Boiler Steel Tubes

The differences between high-pressure boiler steel tubes and low- and medium-pressure boiler steel tubes are as follows:

1. Different implementation standards
High-pressure boiler steel tube implementation standard: GB/T5310-2018
Low and medium pressure boiler steel tube implementation standards: GB/T3087-2018

2. Different usage environments
High-pressure boiler steel tubes: The working pressure is generally above 9.8Mpa, and the working temperature is between 450°C and 650°C.

Low and medium-pressure boiler steel tubes: The working pressure is generally not greater than 5.88Mpa, and the working temperature is below 450°C.

3. Different materials
Suitable materials for high-pressure boiler steel tubes: 20G, 20MnG, 25MnG, 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, etc.
Suitable materials for low and medium-pressure boiler steel tubes: 10#, 20#

4. Prices are different
The price of high-pressure boiler steel tubes is higher than the price of low- and medium-pressure boiler steel tubes.