16Mo3 / 1.5415 Structural Steel

Steel circle delivery forms16Mo3 / 1.5415 / 15M

Steel Circle 1.5415 / 15M

Overview
Steel circle 1.5415 / 15M is a low-alloy heat-resistant steel designed for applications requiring high-temperature strength and corrosion resistance. This steel is widely used in pressure vessels, boiler systems, and piping for high-temperature environments.

Key Features

• Excellent heat resistance and mechanical strength at elevated temperatures
• Good corrosion resistance in steam and aggressive gas environments
• High resistance to creep and oxidation
• Good weldability and machinability

Chemical Composition (%):

• Carbon (C): 0.12 – 0.20
• Silicon (Si): ≤ 0.35
• Manganese (Mn): 0.40 – 0.90
• Phosphorus (P): ≤ 0.025
• Sulfur (S): ≤ 0.020
• Chromium (Cr): ≤ 0.30
• Molybdenum (Mo): 0.25 – 0.35

Mechanical Properties:

• Hardness (HB): 150–200
• Yield Strength (MPa): ≥ 280
• Tensile Strength (MPa): 450–600
• Elongation (%): ≥ 22
• Impact Toughness (J): ≥ 40

Applications

• Power Plants – used in boilers, steam turbines, and heat exchangers
• Petrochemical Industry – pipelines, reactors, and pressure vessels
• Mechanical Engineering – structural components in high-temperature environments
• Industrial Boilers and Steam Systems – parts exposed to extreme heat and pressure

Advantages
✅ High temperature and pressure resistance
✅ Good oxidation and corrosion resistance
✅ Excellent durability and longevity
✅ Optimal balance between strength and toughness

Steel 1.5415 / 15M is a reliable material for industrial applications that require durability, heat resistance, and mechanical stability under extreme operating conditions.