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quality 16Mo3 High Temperature Resistance EN 10216-2 Compliant Boiler Tube and Alloy Steel Seamless Tube factory
quality 16Mo3 High Temperature Resistance EN 10216-2 Compliant Boiler Tube and Alloy Steel Seamless Tube factory
quality 16Mo3 High Temperature Resistance EN 10216-2 Compliant Boiler Tube and Alloy Steel Seamless Tube factory

16Mo3 High Temperature Resistance EN 10216-2 Compliant Boiler Tube and Alloy Steel Seamless Tube

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seamless alloy steel tube

alloy steel seamless tubes

alloy steel pipe
Product Summary
16Mo3 boiler tube offers high-temperature strength and creep resistance up to 530°C, with excellent weldability and low P/S for enhanced toughness. Certified to EN standards, ideal for boilers, pressure vessels, and power plant applications.

Product Details

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16Mo3 Boiler Tube

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High Temperature Resistance Seamless Tube

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EN 10216-2 Compliant Alloy Steel Tube
Product Description
16Mo3 High Temperature Boiler Tube
16Mo3 is a low-alloy steel primarily used for pressure vessels and boilers operating at elevated temperatures. This material is standardized in EN 10028-2 (flat products for pressure purposes) and EN 10216-2 / EN 10217-2 (seamless and welded tubes).
Chemical Composition
Element Composition Range (Weight %)
Carbon (C) 0.12 – 0.20
Silicon (Si) ≤ 0.35
Manganese (Mn) 0.40 – 0.90
Phosphorus (P) ≤ 0.025
Sulfur (S) ≤ 0.010
Chromium (Cr) ≤ 0.30
Nickel (Ni) ≤ 0.30
Molybdenum (Mo) 0.25 – 0.35
Copper (Cu) ≤ 0.30
Nitrogen (N) ≤ 0.012
Aluminum (Al) ≥ 0.020 (as total Al, for deoxidation)
Key Composition Benefits
Molybdenum (0.25–0.35%)
  • Increases high-temperature strength (creep resistance)
  • Improves resistance to softening at elevated temperatures
  • Provides better resistance to hydrogen attack and corrosion in boiler/pressure environments
Low Carbon + Controlled Manganese
Low carbon maintains good weldability and reduces brittle weld risk, while manganese enhances strength and toughness without compromising weldability.
Low Phosphorus & Sulfur
Minimized levels improve toughness, reduce hot cracking, and ensure better performance under pressure and high temperatures.
Controlled Chromium & Nickel
Present only as residuals; 16Mo3 offers better corrosion resistance than plain carbon steel but remains cost-effective compared to stainless steels.
Performance Characteristics
16Mo3 is selected for its optimal balance of properties including:
  • Excellent weldability
  • Adequate strength up to 500–530°C (depending on design code)
  • Superior creep resistance compared to plain carbon steels like P235GH or P265GH
  • Cost-effectiveness compared to Cr-Mo or stainless steels
Common Applications
16Mo3 is commonly specified for critical components in various industrial settings:
  • Boiler tubes and heat exchanger tubes
  • Steam lines and collector pipes
  • Pressure vessels and headers in power plants
  • Refinery and chemical plant equipment

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