High pressure boiler tube

St52.3 steel pipe, St52.3 seamless pipe, St52.3 seamless steel pipe, St52.3 German standard seamless steel pipe

High pressure boiler tube is a kind of boiler tube, belonging to the category of seamless steel tube. The manufacturing method is the same as that of seamless pipe, but there are strict requirements on the steel grades used for manufacturing steel pipes. High pressure boiler tubes are often used in high temperature and high pressure conditions. Under the action of high-temperature flue gas and water vapor, the tubes will be oxidized and corroded. The steel pipe is required to have high lasting strength, high oxidation and corrosion resistance, and good organizational stability. High pressure boiler tubes are mainly used to manufacture superheater tubes, reheater tubes, air ducts, main steam pipes, etc. of high pressure and ultra-high pressure boilers.

High pressure boiler tube is a kind of boiler tube, belonging to the category of seamless steel tube. The manufacturing method is the same as that of seamless high pressure boiler tubes, but there are strict requirements on the steel grades used for manufacturing steel tubes. High pressure boiler tubes are often used in high temperature and high pressure conditions. High pressure boiler tubes are mainly used to manufacture superheater tubes, reheater tubes, air ducts, main steam pipes, etc. of high pressure and ultra-high pressure boilers.

Because boiler tubes work under high temperature and high pressure for a long time, the materials will creep, the plasticity and toughness will decline, the original structure will change, and corrosion will occur. The steel pipe used for boiler shall have: (1) sufficient endurance strength; (2) Sufficient plastic deformation capacity; (3) Minimum aging tendency and thermal brittleness; (4) High oxidation resistance, coal ash resistance, high temperature corrosion resistance of natural gas, steam and stress corrosion resistance; (5) Good structure stability and good process performance. High pressure boiler tubes are made of carbon steel, pearlite, ferrite and austenitic stainless heat-resistant steel. In order to improve the thermal efficiency of thermal power generation units and reduce fuel consumption, countries around the world focus on developing large capacity, high parameter (high temperature, high pressure) thermal power units (above 1000MW). The steam pressure is increased to 31.5~34.3MPa, and the superheated steam temperature is 595~650 ℃, which is developing towards the ultra-high pressure critical pressure. This puts forward higher requirements for the high-pressure boiler tubes. Therefore, new steel grades have been developed to meet the needs of high parameter utility boilers.

Common problem

1. Are you a manufacturing company or a trading company?

We are manufacturing, we have 20 years of experience in domestic supply of metal materials and products.

2. What services can you provide?

We can provide various metal materials and products, as well as other process services.

3. Can you provide free samples?

We can provide free samples, but the express freight of samples should be provided by you.

4. If we place an order, how fast will your delivery time be?

7-10 days after receiving your deposit is normal.

5. What payment terms can you accept?

We can now accept TT, Western Union remittance or negotiation.