EN10253-1 Pipe Fitting Elbow S235 S265 Butt Weld Carbon Steel 5D
180 Degree Pipe Elbow for Piping Systems
Product Introduction:
EN 10253-1 standard covers factory-wrought carbon steel butt welding pipe fittings,
including a variety of shapes such as elbows, return bends,
concentric and eccentric reducers, equal and reducing tees, dished
ends, and caps. These fittings are supplied without specific
inspection requirements. The EN 10253-1 standard is derived from the obsolete DIN pipe fitting standard series.
Manufacturers have the flexibility to produce these butt welding
pipe fittings using either hot or cold deformation processes from
raw materials such as seamless tubes, welded tubes, plates,
forgings, and bars. The choice regarding the manufacturing process
for the base material is at the discretion of the manufacturer,
allowing for customization based on specific requirements.
Overall, EN 10253-1 sets the specifications and guidelines for the production of
carbon steel butt welding pipe fittings, ensuring quality and
compatibility within various industrial applications.
Chemical Analysis and Testing of EN10253-1 Butt Welding Fittings:
The manufacturer is required to conduct chemical analysis of each
cast, as well as perform yield strength, tensile strength, and
hardness tests. The tensile test must comply with EN 10002-1
standards, with the test piece extracted longitudinally without
flattening. For fittings with a diameter equal to or less than
114.3 mm, a Brinell hardness test following EN 10003-1 guidelines
may be conducted instead of a tensile test. Both the chemical
composition and mechanical properties test results must meet the
specifications outlined in EN 10253-1.
EN10253-1 5D 180 Degree Elbows Dimensions:
| EN10253-1 5D 180 Degree Elbow Dimensions |
DN | Outside Diameter of Return Bends(mm) | Wall Thickness(mm) | Center-to-center Length of the Return Bends(mm) | Face to top length for Return Bends(mm) |
15 | 21.3 | 2.0 | 85 | 53 |
20 | 26.9 | 2.3 | 115 | 71 |
25 | 33.7 | 2.6 | 145 | 89 |
| 38.0 | 2.6 | 165 | 101 |
32 | 42.4 | 2.6 | 185 | 114 |
| 44.5 | 2.6 | 195 | 120 |
40 | 48.3 | 2.6 | 215 | 132 |
| 54.0 | 2.6 | 245 | 149 |
| 57.0 | 2.9 | 260 | 158 |
50 | 60.3 | 2.9 | 270 | 165 |
| 70.0 | 2.9 | 320 | 195 |
65 | 76.1 | 2.9 | 350 | 213 |
80 | 88.9 | 3.2 | 410 | 250 |
90 | 101.6 | 3.6 | 470 | 286 |
| 108.0 | 3.6 | 506 | 306 |
100 | 114.3 | 3.6 | 540 | 327 |
| 133.0 | 4.0 | 623 | 378 |
125 | 139.7 | 4.0 | 660 | 400 |
| 159.0 | 4.5 | 750 | 454 |
150 | 168.3 | 4.5 | 780 | 474 |
200 | 219.1 | 6.3 | 1020 | 620 |
| 244.5 | 6.3 | 1160 | 702 |
250 | 273.0 | 6.3 | 1300 | 786 |
300 | 323.9 | 7.1 | 1550 | 937 |
350 | 355.6 | 8.0 | 1700 | 1026 |
400 | 406.4 | 8.8 | 1940 | 1173 |
Chemical Requirements S235 and S265:
Chemical requirements of steel grade S235 are as follows:
- Carbon (C): Maximum 0.16%
- Silicon (Si): Maximum 0.35%
- Manganese (Mn): Maximum 1.2%
- Sulphur (S): Maximum 0.025%
- Phosphorus (P): Maximum 0.030%
Elements not listed in the table should not be deliberately added
to the steel without the purchaser's agreement, except for
deoxidizing elements. However, residual elements may be acceptable
as long as they do not negatively impact the mechanical properties
and suitability of the steel.
Chemical requirements of steel grade S265 are as follows:
- Carbon (C): Maximum 0.20%
- Silicon (Si): Maximum 0.40%
- Manganese (Mn): Maximum 1.40%
- Sulphur (S): Maximum 0.025%
- Phosphorus (P): Maximum 0.030%
According to the standard, elements not included in this table
should not be intentionally added to the steel without the
agreement of the purchaser, except for elements used for
deoxidation. However, residual elements may be tolerated, provided
that they do not adversely affect the mechanical properties and
applicability of the steel.
Advantages of S235&S265:
Advantages of S235:
- Weldability: S235 offers excellent weldability, making it suitable for various
welding processes and applications.
- Good Formability: This grade of steel can be easily formed into different shapes
without sacrificing its structural integrity, allowing for
versatile usage in manufacturing and construction.
- Cost-Effective: S235 provides a good balance between cost and performance, making
it a cost-effective choice for many structural applications.
- Widespread Availability: S235 is readily available and commonly used, ensuring ease of
sourcing and supply.
Advantages of S265:
- Higher Yield Strength: S265 offers higher yield strength compared to S235, providing
increased structural support and load-bearing capacity in
applications where strength is paramount.
- Suitable for Heavy-Duty Applications: Due to its higher strength, S265 is well-suited for heavy-duty
structural components and applications that require enhanced
load-bearing capabilities.
- Impact Resistance: S265 exhibits good impact resistance, which is beneficial in
applications where the material may be subjected to dynamic or
sudden loads.
- Structural Reliability: With its elevated strength characteristics, S265 provides a
reliable and durable solution for demanding structural
requirements.
In summary, S235 and S265 each offer distinct advantages based on
their specific properties, making them suitable for a wide range of
structural and construction applications. The choice between the
two grades depends on the specific requirements and performance
criteria of the intended application.
Applications of EN10253-1 Carbon Steel 5D 180 Degree Elbows:
Wastewater Treatment Plants: In wastewater treatment plants, EN10253-1 Carbon Steel 5D 180 Degree Elbows are used to reverse the direction of the flow, redirecting the
treated water or sludge to the desired location for further
processing or disposal. They are often employed in applications
such as sewage treatment, sludge handling, and water reclamation
processes.
Chemical Plants: Chemical processing facilities often utilize EN10253-1 Carbon Steel 5D 180 Degree Elbows to change the flow direction in pipelines handling different
chemicals or fluids. These elbows allow for efficient routing of
pipelines, enabling the transfer of materials between different
processing units or storage tanks.
Power Generation Facilities: Power plants, including thermal power plants and nuclear power
plants, utilize EN10253-1 Carbon Steel 5D 180 Degree Elbows in their piping systems. These elbows help redirect the flow of
steam, water, or other fluids within the power generation
processes, facilitating efficient energy production.
Tight Space Installations: In applications where space is limited, such as in HVAC (heating,
ventilation, and air conditioning) systems, confined areas, or
retrofit projects, EN10253-1 Carbon Steel 5D 180 Degree Elbows are used to navigate the piping through tight spaces or obstacles.
They allow for a significant directional change within a relatively
small area, optimizing the layout of the piping system.
Plumbing Systems: In residential, commercial, and industrial plumbing systems, EN10253-1 Carbon Steel 5D 180 Degree Elbows can be used to redirect water or fluid flow to accommodate
specific building layouts or plumbing requirements. They can be
employed in water supply lines, drainage systems, or irrigation
systems to change the direction of the flow as needed.
