EN10253-1 Pipe Fitting Elbow Carbon Steel S235 S265 5D Radius 90
Degree Elbow for Industrial Piping Systems
Product Introduction of EN10253-1 90 Degree 5D Radius Elbows:
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 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.
EN10253-1 90 Degree Elbow 5D Dimensions:
| EN10253-1 5D 90 Degree Elbow Dimensions |
DN | Outside Diameter of Elbows (mm) | Wall Thickness(mm) | Center-to-end Radius of the Elbow(mm) |
15 | 21.3 | 2.0 | 42.5 |
20 | 26.9 | 2.3 | 57.5 |
25 | 33.7 | 2.6 | 72.5 |
| 38.0 | 2.6 | 82.5 |
32 | 42.4 | 2.6 | 92.5 |
| 44.5 | 2.6 | 97.5 |
40 | 48.3 | 2.6 | 107.5 |
| 54.0 | 2.6 | 122.5 |
| 57.0 | 2.9 | 130 |
50 | 60.3 | 2.9 | 135 |
| 70.0 | 2.9 | 160 |
65 | 76.1 | 2.9 | 175 |
80 | 88.9 | 3.2 | 205 |
90 | 101.6 | 3.6 | 235 |
| 108.0 | 3.6 | 253 |
100 | 114.3 | 3.6 | 270 |
| 133.0 | 4.0 | 311.5 |
125 | 139.7 | 4.0 | 330 |
| 159.0 | 4.5 | 375 |
150 | 168.3 | 4.5 | 390 |
200 | 219.1 | 6.3 | 510 |
| 244.5 | 6.3 | 580 |
250 | 273.0 | 6.3 | 650 |
300 | 323.9 | 7.1 | 775 |
350 | 355.6 | 8.0 | 850 |
400 | 406.4 | 8.8 | 970 |
Advantages of S235&S265:
Advantages of S235 (compared to S265):
- Cost-Effective: S235 steel typically has lower carbon content, making it more
cost-effective for general structural applications where high
strength is not a primary requirement.
- Weldability: S235 steel is known for its good weldability, allowing for easy
fabrication and construction processes.
- Ductility: S235 steel exhibits good ductility, making it suitable for forming
and shaping processes without compromising its structural
integrity.
Advantages of S265 (compared to S235):
- Higher Strength: S265 steel has a higher maximum carbon content and manganese
content, leading to increased strength and load-bearing capacity
compared to S235 steel.
- Enhanced Hardness: The higher carbon and manganese content in S265 steel can result
in enhanced hardness, making it suitable for applications requiring
greater resistance to wear and abrasion.
- Improved Toughness: S265 steel may offer improved toughness properties, making it
suitable for applications subject to impact and dynamic loading
conditions.
Overall, the choice between S235 and S265 steel grades depends on
the specific requirements of the application, with each grade
offering distinct advantages based on factors such as cost,
strength, weldability, and toughness.
Applications of 5D Radius 90 Degree Elbows:
5D radius 90-degree elbows, also known as long radius 90-degree elbows, find applications in
various industries and piping systems where a gradual change in
direction and reduced pressure drop are desired.
Oil and Gas Industry: 5D radius 90-degree elbows are widely used in oil and gas pipelines, both onshore and
offshore. They facilitate smooth directional changes and help
maintain the flow efficiency of petroleum products, natural gas,
and other fluids throughout the pipeline network.
Chemical Processing: In chemical plants and refineries, 5D radius 90-degree elbows are employed in piping systems that transport various chemicals,
acids, solvents, and corrosive substances. The larger radius of
these elbows minimizes pressure drop, reduces turbulence, and
ensures the integrity of the process.
Power Generation: Power plants, including thermal power plants and nuclear power
plants, utilize 5D radius 90-degree elbows in their piping systems. They are commonly used in applications
such as condenser water systems, cooling water circuits, and steam
distribution, where smooth flow transitions and minimal pressure
loss are critical.
HVAC Systems: Heating, ventilation, and air conditioning (HVAC) systems often
incorporate 5D radius 90-degree elbows in ductwork installations. They facilitate efficient airflow
distribution, reduce pressure drop, and minimize noise and
turbulence in the system.
Water and Wastewater Treatment: 5D radius 90-degree elbows are commonly used in water and wastewater treatment plants. They
assist in directing the flow of water, chemicals, and sludge,
ensuring efficient treatment processes, reducing energy
consumption, and minimizing pressure losses.
Food and Beverage Industry: In food processing plants and breweries, 5D radius 90-degree elbows are employed to maintain hygienic conditions in the piping
systems. They facilitate smooth flow transitions, minimize pressure
drop, and ensure the integrity and quality of the processed food
and beverages.
