First, what are the production methods for boiler steel pipes?
Boiler steel pipes are a type of seamless steel pipe. The manufacturing method is the same as for seamless steel pipes, but there are strict requirements on the steel grades used. They are divided into general boiler steel pipes and high-pressure boiler steel pipes based on their operating temperature.
The mechanical properties of boiler steel pipes are important indicators for ensuring the final performance (mechanical properties) of the steel. Boiler steel pipes depend on the chemical composition and heat treatment regime of the steel. Steel pipe standards specify tensile properties (tensile strength, yield strength or yield point, elongation), hardness, toughness, and high and low temperature performance requirements based on different usage requirements.
① General boiler steel pipes are used at temperatures below 350℃. Domestically produced pipes are mainly manufactured using No. 10 and No. 20 carbon structural steel hot-rolled or cold-drawn pipes.
② High-pressure boiler steel pipes are frequently used under high temperature and high pressure conditions. Under the influence of high-temperature flue gas and steam, the steel pipes will undergo oxidation and corrosion. The steel pipes are required to have high creep strength, high resistance to oxidation and corrosion, and good structural stability.

Secondly, what are the solutions to boiler steel pipe problems?
When the wall thickness of boiler steel pipes is inconsistent, compensating shims can be used.
1. The required thickness can be achieved by thickening or thinning the boiler steel pipe wall.
2. When the wall thickness of boiler steel pipes is inconsistent, high-strength bolts and washers can be used to compensate for the inconsistent wall thickness to achieve the required thickness.
3. When the wall thickness of boiler steel pipes is inconsistent, welding can also be used to compensate for the inconsistent wall thickness to achieve the required boiler steel pipe thickness.