PowerSteel.eu CS and Alloy steel 1.5415 /16Mo3 /15Mo3

1.5415 /16Mo3 /15Mo3

2–3 days
Round Bars 4–850 mm
EN 10273 / EN 10222-2 / EN 10060 / DIN 7526 Bl.6 EN 10028-2 / EN 10024, 10034, 10279 Uses: These steel grades are characterised by a good weldability. They are used above all for manufacturing boilers, pressure vessels and pipes transporting hot liquids. The user of these steel grades must make sure that his calculation, design and processing methods are appropriate for the material. The grades of this series offer good cold and hot-forming properties.
Tensile Strength Rm:
440 – 590 MPa
Yield Strength:
from 275 MPa
Working temperature:
0 – 530°C
Equivalent or similar:
CSN 15020, A204Gr.A, A204Gr.B, SS2912, 15D3,

About material

✓ Available from European Stock

• EN 10204 3.1
• Round Bars
• Pressure Vessel Steel
• Worldwide Delivery
• Cut-to-Length Service
• Fast Quotations within 24 Hours

16Mo3 Round Bar Supplier

Looking for 16Mo3, 1.5415, 15Mo3 or pressure vessel steel round bars?

WTE PowerSteel is a European supplier and stockholder of 16Mo3 (1.5415 / 15Mo3) molybdenum-alloyed pressure vessel steel for elevated temperature applications. We supply certified round bars with full material traceability, EN 10204 3.1 certification and fast worldwide delivery.

16Mo3 is a molybdenum-alloyed steel developed for pressure equipment operating at elevated temperatures. It offers an excellent combination of high-temperature strength, good weldability and reliable creep resistance, making it one of the most widely specified steels for boilers, steam piping, heat exchangers and pressure vessels.

The alloy is widely used for manufacturing pressure equipment components, boiler parts, steam piping, heat exchangers and industrial process equipment. Its excellent mechanical properties and good fabrication characteristics make 16Mo3 a preferred material for power generation, petrochemical, chemical processing and industrial heating systems.


Why Choose 16Mo3?

Compared with conventional carbon steels, 16Mo3 (1.5415) provides improved elevated-temperature strength, creep resistance and excellent weldability. The alloy is widely specified for pressure equipment operating under continuous high-temperature service where reliability and long service life are essential.

Key Benefits

  • Excellent elevated-temperature strength
  • Good creep resistance
  • Excellent weldability
  • Good machinability
  • Good hot forming properties
  • Reliable long-term performance
  • Good oxidation resistance
  • Long service life
  • Suitable for pressure equipment
  • Ideal for high-temperature applications

Typical Applications

16Mo3 is commonly used for manufacturing:

  • Pressure vessels
  • Steam piping
  • Boiler components
  • Heat exchangers
  • Pressure equipment
  • Industrial furnaces
  • Process piping
  • Headers
  • Flanges
  • Precision CNC machined components
  • Energy equipment
  • Heavy engineering parts

Industries Served

Our customers use 16Mo3 in:

  • Power Generation
  • Petrochemical
  • Chemical Processing
  • Pressure Equipment
  • Boiler Manufacturing
  • Industrial Heating
  • Heavy Engineering
  • Industrial Equipment Manufacturing

Available Product Forms

We supply:

  • Round Bars
  • Peeled Bars
  • Bright Bars
  • Hot Rolled Bars
  • Cut-to-Length Pieces

Available diameters and lengths upon request.


Inspection & Certification

Material can be supplied with:

  • EN 10204 3.1 Inspection Certificate
  • EN 10204 3.2
  • AD 2000
  • PED 2014/68/EU
  • PMI (Positive Material Identification)
  • Ultrasonic Testing (UT)
  • Customer-specific inspection requirements

International Designations

This material is also known as:

  • 16Mo3
  • 1.5415
  • 15Mo3
  • ASTM A204 Grade B (closest equivalent)
  • ASTM A204 Grade A (closest equivalent)
  • DIN 15Mo3
  • EN 10028-2 16Mo3


Frequently Asked Questions

What is 16Mo3 steel?

16Mo3 (1.5415) is a molybdenum-alloyed pressure vessel steel developed for elevated-temperature service. It is widely used for boilers, pressure vessels, steam piping and heat exchangers requiring good creep resistance and excellent weldability.


Is 16Mo3 suitable for pressure vessels?

Yes. 16Mo3 is widely used for manufacturing pressure vessels, boiler components, steam piping and other equipment operating under elevated temperatures. It offers excellent weldability and reliable long-term performance in pressure applications.


What is the equivalent of 16Mo3?

The closest international equivalents include ASTM A204 Grade A, ASTM A204 Grade B and 15Mo3. Material selection should always be verified against the applicable specification and project requirements.


Do you stock 16Mo3 round bars?

Yes. WTE PowerSteel supplies 16Mo3 (1.5415 / 15Mo3) round bars from European stock. Please contact our sales team for current stock availability, dimensions and delivery times.


Can you supply cut-to-length material?

Yes. We supply both full-length bars and precision cut-to-length pieces according to customer requirements.


Why Choose WTE PowerSteel?

WTE PowerSteel is a European supplier and stockholder of pressure vessel steels, heat-resistant steels and nickel alloys for power generation, petrochemical, pressure equipment and heavy industry. We supply 16Mo3 (1.5415 / 15Mo3) round bars with full material traceability, EN 10204 3.1 certification, fast quotations, cut-to-length service and worldwide delivery.

Similiar materials

Round Bars 20–200 mm
On stock
Round Bars 10–120 mm
On stock
Round Bars 20–100 mm
On stock
Round Bars 20–100 mm
On stock

© 2026 WTE PowerSteel

vyrobila