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Introduction
EN 10216-1 specifies the
technical delivery conditions for seamless circular tubes made of non-alloy
steel intended for pressure applications. These tubes are primarily used where
pressure resistance, weldability, toughness and reliable mechanical performance
are required.
Ladhani Metal Corporation
supplies EN 10216-1 seamless non-alloy steel tubes in different grades,
dimensions, wall thicknesses and delivery conditions for industrial and
engineering requirements.
Applicable Standard
EN 10216-1 – Seamless Steel
Tubes for Pressure Purposes – Part 1: Non-Alloy Steel Tubes with Specified Room
Temperature Properties.
The standard covers seamless
circular tubes with specified properties at room temperature and establishes
requirements for chemical composition, mechanical properties, testing,
dimensions and delivery conditions.
Material Type
EN 10216-1 covers non-alloy
quality steels used for seamless pressure tubes. The products are manufactured
without a longitudinal weld and are supplied with controlled chemical
composition and mechanical properties.
Forms of Supply
- Seamless Steel Tubes
- Seamless Pressure Tubes
- Seamless Carbon Steel Tubes
- Hot Finished Tubes
- Cold Drawn Tubes
- Cold Rolled Tubes
- Boiler Tubes
- Heat Exchanger Tubes
- Pressure Tubes
- Mechanical and Engineering Tubes
- Cut-to-Length Tubes
- Precision Tubes
Grades Covered
P195TR1 | P195TR2 | P235TR1 |
P235TR2 | P265TR1 | P265TR2
Grade Designation
- P = Steel intended for pressure
purposes
- 195, 235, 265 = Minimum specified
yield strength class in MPa
- TR1 = Technical delivery condition with
specified requirements
- TR2 = Technical delivery condition
with additional requirements, including specified chemical and impact
properties
Chemical Composition
Typical maximum chemical
composition requirements are shown below. Exact limits should be confirmed
against the applicable edition, grade and product thickness.
|
Grade |
C Max. % |
Si Max. % |
Mn % |
P Max. % |
S Max. % |
|
P195TR1 |
0.20 |
0.35 |
0.40–1.20 |
0.025 |
0.025 |
|
P195TR2 |
0.20 |
0.35 |
0.40–1.20 |
0.025 |
0.025 |
|
P235TR1 |
0.16 |
0.35 |
0.40–1.20 |
0.025 |
0.025 |
|
P235TR2 |
0.16 |
0.35 |
0.40–1.20 |
0.025 |
0.025 |
|
P265TR1 |
0.20 |
0.40 |
0.40–1.40 |
0.025 |
0.025 |
|
P265TR2 |
0.20 |
0.40 |
0.40–1.40 |
0.025 |
0.025 |
For TR2 grades, additional
requirements concerning elements such as aluminium may apply.
Mechanical Properties
|
Grade |
Yield Strength Min. MPa |
Tensile Strength MPa |
Elongation Min. % |
|
P195TR1 |
195 |
320–440 |
27 |
|
P195TR2 |
195 |
320–440 |
27 |
|
P235TR1 |
235 |
360–500 |
25 |
|
P235TR2 |
235 |
360–500 |
25 |
|
P265TR1 |
265 |
410–570 |
23 |
|
P265TR2 |
265 |
410–570 |
23 |
Mechanical properties are
dependent on the product dimensions and testing direction where specified.
Impact Properties
TR2 grades have specified
Charpy V-notch impact requirements. The impact testing temperature and minimum
absorbed energy depend on the applicable grade and wall thickness.
- P195TR2 – Impact toughness requirements
apply
- P235TR2 – Impact toughness
requirements apply
- P265TR2 – Impact toughness
requirements apply
Delivery Conditions
EN 10216-1 seamless tubes may
be supplied in conditions such as:
- Normalized
- Normalized formed
- Normalized and tempered where specified
- Cold finished with appropriate
subsequent heat treatment
The delivery condition is
selected according to grade, manufacturing route and purchaser requirements.
Surface Finish
EN 10216-1 tubes can be
supplied with suitable mill or processed surfaces depending on manufacturing
condition:
- Plain Mill Finish
- Hot Finished Surface
- Cold Finished Surface
- Pickled Surface
- Descaled Surface
- Bright / Smooth Surface
The surface shall be free
from defects that would adversely affect compliance with the standard.
Standard Sizes
EN 10216-1 seamless tubes are
available in various outside diameters and wall thicknesses.
- Outside Diameter: As specified by
order
- Wall Thickness: As specified by
order
- Length: Fixed or random lengths
- End Finish: Plain Ends or as
specified
- Custom Dimensions: Available
subject to manufacturing capability
Key Features
- Seamless construction
- Good pressure resistance
- Reliable mechanical properties
- Good weldability
- Good toughness
- Suitable for pressure applications
- Consistent dimensional accuracy
- Available in hot-finished and
cold-finished conditions
- Suitable for fabrication and
engineering applications
Applications
Pressure Equipment
- Pressure vessels
- Pressure piping
- Industrial pressure systems
- Process equipment
Boiler and Heat Exchanger Systems
- Boiler tubing
- Heat exchanger tubing
- Steam systems
- Heating equipment
Oil and Gas Industry
- Process piping
- Pressure lines
- Hydrocarbon processing systems
- Refinery equipment
Industrial Engineering
- Mechanical equipment
- Power generation equipment
- Chemical processing systems
- General industrial piping
Fabrication and Welding
EN 10216-1 non-alloy steel
tubes can be cut, formed, machined and welded using suitable procedures.
Welding parameters should be selected according to the specific grade, wall
thickness and applicable fabrication requirements.
Heat Treatment
Heat treatment requirements
depend on the grade and delivery condition. Normalizing or other specified
heat-treatment processes may be used to achieve the required mechanical
properties and metallurgical structure.
Testing and Inspection
EN 10216-1 products are
subject to specified inspection and testing requirements, which may include:
- Chemical Analysis
- Tensile Testing
- Impact Testing for applicable TR2
grades
- Dimensional Inspection
- Visual Examination
- Leak-Tightness Testing
- Non-Destructive Testing where
specified
- Material Identification and
Traceability
Inspection documents can be
supplied according to the purchaser's requirements.
Advantages
- Seamless pressure-bearing
construction
- Good strength-to-weight ratio
- Suitable for demanding pressure
systems
- Good weldability
- Reliable toughness
- Wide range of available dimensions
- Suitable for industrial and
engineering fabrication
- Available with inspection and certification
documentation
Conclusion
EN 10216-1 seamless non-alloy
steel tubes are designed for pressure applications requiring controlled
chemical composition, mechanical properties and reliable tube integrity. The
principal grades are P195TR1, P195TR2, P235TR1, P235TR2, P265TR1 and P265TR2.
Ladhani Metal Corporation
supplies EN 10216-1 seamless steel tubes in required grades, sizes, wall
thicknesses and delivery conditions for pressure, boiler, heat exchanger, power
generation, oil and gas and general industrial applications.
FOR REQUIREMENT OF THIS GRADE
OR FOR DETAIL CONTACT US AT :-
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