15Mo3 for Shell Plates for Crude Oil Tank

1.What are the chemical composition of 15Mo3 for Shell Plates for Crude Oil Tank?

2.What are the core properties of 15Mo3 steel plates for pressure vessels?

High – temperature Stability

• Maintains high strength and oxidation resistance in high – temperature environments of 450 – 650℃ for a long time, making it suitable for high – temperature and high – pressure scenarios such as boilers and pressure vessels.
• Excellent creep resistance, capable of withstanding continuous high – temperature loads.

Mechanical Properties

• Tensile strength: 450 – 600MPa; yield strength: ≥270MPa, combining high load – bearing capacity with ductility (elongation ≥20%).
• Impact toughness (at 23℃): ≥34J, adapting to dynamic load environments.

Corrosion and Wear Resistance

• Resistant to corrosion by water, oil, and general acids and alkalis, prolonging the service life of chemical equipment.
• Outstanding surface wear resistance, suitable for mining machinery, transmission components, and other applications.

3.What is DIN 17175 grade 15Mo3 equivalent to?

EN 10028 – 2: The corresponding grade is 16Mo3 (1.5415). It is widely used in the European Union and has similar chemical composition and mechanical properties to 15Mo3 in DIN 17175.

BS 3059 part II: There is an equivalent relationship with 15Mo3 in DIN 17175, which is applicable to the British standard system.

NF A49 – 213: In the French standard, it is equivalent to DIN 17175 grade 15Mo3.

GB 5310: It is the Chinese national standard for high – pressure boiler tubes. The 15Mo3 in DIN 17175 has similar performance and application scenarios to the steel grades specified in this standard, and can be used for the manufacturing of high – pressure boiler tubes.

ASTM A204: In the American standard, grades A and B of ASTM A204 are equivalent to DIN 17175 grade 15Mo3 to a certain extent. They are all alloy steels used for pressure vessels and have similar chemical composition and mechanical property requirements.

4.What is the difference between DIN17155 15Mo3 and DIN17155 16Mo3 ?

Yield Strength:

16Mo3 has a higher minimum yield strength (≥290 MPa) than 15Mo3 (≥270 MPa), making it more suitable for high – pressure applications.

Tensile Strength:

16Mo3 exhibits a higher tensile strength range (480–630 MPa) compared to 15Mo3 (450–600 MPa), indicating better overall strength.

Application Focus:

15Mo3 is commonly used in medium – temperature applications (e.g., steam boilers, heat exchangers) up to 500°C.

16Mo3 is designed for higher – temperature and higher – pressure environments (e.g., power plants, petrochemical equipment) up to 550°C due to its slightly better creep resistance.