Welcome to ALLLAND Steel Pipe Co., Ltd.
Welcome to ALLLAND Steel Pipe Co., Ltd.
ALLLAND Steel Pipe Supply
Welcome to ALLLAND Steel Pipe Manufacturing. EN 10217 P235 is a welded steel pipe for pressure applications that complies with the European standard EN 10217. It is primarily used in industrial conveyance systems operating at low to medium pressures. This steel grade offers good weldability and cost-effectiveness, and is widely used in water treatment, heating, ventilation, and air conditioning (HVAC), boiler auxiliary piping, and general industrial piping systems. Due to its stable mechanical properties and reliable workability, P235 has become one of the preferred material choices for pressure piping in non-high-pressure applications.
Alllandsteel is a steel pipe manufacturer based in China with 25 years of experience.
The facility spans 22,000 square meters, represents a RMB 700 million investment, and operates four production lines (JCOE, ERW, SMLS, SSAW) alongside five coating lines.
With an annual production capacity of 250,000 tons, the factory covers specifications ranging from Ø406 to Ø1524 and holds multiple international certifications (API/ASTM/EN/ISO/JIS). Focused on steel pipes, creating value for you!
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EN 10217 P235 is a European standard welded steel pipe designed for low- and medium-pressure industrial systems. It offers good weldability and cost-effectiveness, and is widely used in water, HVAC, and industrial piping networks.
O.D.:
21.3 mm – 610 mm+
W.T.:
1.5 mm – 20 mm+
Length:
6-12 m, available in fixed or multiple lengths; custom lengths per project requirements.
Manufacturing Process:
ERW (Electric Resistance Welded)
HFW (High Frequency Welded)
Steel type:
Non-alloy steel
Steel Grades:
P235TR1 / P235TR2
Surface Treatment:
Black painted / mill finish / Light oil coating / Hot-dip galvanizing (HDG) / Anti-corrosion coating / Varnish / lacquer coating
Tube Ends:
Plain ends (PE) / Beveled ends (BE) / Threaded ends / Coupling / socket ends
| NPS (inch) | OD (mm) | SCH 10 | SCH 20 | SCH 40 | SCH 80 | SCH 160 | XXS |
|---|---|---|---|---|---|---|---|
| 1/8″ | 10.3 | 1.24 | 1.73 | 2.41 | 3.18 | 3.73 | 4.78 |
| 1/4″ | 13.7 | 1.65 | 2.24 | 3.02 | 3.56 | 4.78 | 7.14 |
| 3/8″ | 17.1 | 1.65 | 2.31 | 3.20 | 3.91 | 5.16 | 7.47 |
| 1/2″ | 21.3 | 2.11 | 2.77 | 3.73 | 4.78 | 7.47 | 9.53 |
| 3/4″ | 26.7 | 2.11 | 2.87 | 3.91 | 5.56 | 7.82 | 11.13 |
| 1″ | 33.4 | 2.77 | 3.38 | 4.55 | 6.35 | 9.09 | 12.70 |
| 1 1/4″ | 42.2 | 2.77 | 3.56 | 4.85 | 6.35 | 9.70 | 14.27 |
| 1 1/2″ | 48.3 | 2.77 | 3.68 | 5.08 | 7.14 | 10.15 | 15.09 |
| 2″ | 60.3 | 2.77 | 3.91 | 5.54 | 8.74 | 11.07 | 17.12 |
| 2 1/2″ | 73.0 | 3.05 | 5.16 | 7.01 | 9.53 | 14.02 | 20.62 |
| 3″ | 88.9 | 3.05 | 5.49 | 7.62 | 11.13 | 15.24 | 22.23 |
| 4″ | 114.3 | 3.05 | 6.02 | 8.56 | 13.49 | 17.12 | 22.23 |
| 6″ | 168.3 | 3.40 | 7.11 | 10.97 | 18.26 | 21.95 | 25.40 |
| 8″ | 219.1 | 3.76 | 8.18 | 12.70 | 20.62 | 22.23 | 28.58 |
| 10″ | 273.1 | 4.19 | 9.27 | 15.09 | 25.40 | 28.58 | 30.96 |
| 12″ | 323.9 | 4.57 | 10.31 | 17.48 | 28.58 | 33.32 | 33.32 |
| Element | Content Limit |
| C (Carbon) | ≤ 0.16% |
| Mn (Manganese) | ≤ 1.20% |
| Si (Silicon) | ≤ 0.35% |
| P (Phosphorus) | ≤ 0.025% |
| S (Sulfur) | ≤ 0.020% |
| Property | Value |
| Yield Strength | ≥ 235 MPa |
| Tensile Strength | 360 – 500 MPa |
| Elongation | ≥ 25% |
| Grade | Strength | Application |
| P235 | Low-Medium | General pressure systems |
| P265 | Higher | More demanding pressure systems |
| P355 | High | High-pressure industrial use |
The P235 grade in EN 10217 is a low-carbon welded steel pipe for pressure applications, suitable for industrial fluid systems operating at medium and low pressures under non-extreme conditions.
Industrial Piping Systems
DN15–DN50: instrument / branch lines
DN50–DN200: main circulation pipes
HVAC & Heating Systems
DN20–DN80: building branches
DN80–DN200: main systems
Boiler Auxiliary Systems
DN15–DN50: return / instrument lines
DN50–DN150: feedwater auxiliary lines
❌ Not for high-pressure steam lines
✔ Used for auxiliary systems
Heat Exchanger Systems
Water Systems
In a large-scale municipal water treatment expansion project in South America, ALLLAND Steel Pipe supplied DN200–DN500 EN 10217 P235 welded steel pipes for the main water transmission pipeline system.
There is no exact one-to-one correspondence between P235GH and ASTM grades; it can only be considered a “close equivalent.”
| P235GH | Closest ASTM Equivalent | Application Match |
| P235GH (pipe/boiler steel) | ASTM A516 Gr.60 | Best overall match |
| P235GH | ASTM A516 Gr.70 | Higher strength option |
| P235GH | ASTM A285 Gr.C | Lower-end substitution |
| P235GH (pipe comparison) | ASTM A106 Gr.B | Pipe system reference |
EN 10217 P235 steel pipe is a reliable and cost-efficient solution for industrial pressure piping systems, especially in low and medium pressure environments.
Get EN 10217 P235 steel pipe price list, size chart, and mill test certificate (MTC) today.
EN 10217 P235 is used for low to medium pressure welded steel pipe systems, mainly in industrial piping, HVAC, boiler auxiliary lines, heat exchangers, and water systems.
It is suitable for general pressure service, not for critical or high-pressure pipelines.
No. P235 is not designed for high-pressure applications.
It is typically used in low to medium pressure conditions such as:
For high-pressure service, higher grades such as P265GH, P355GH or ASTM A106 are normally required.
P235TR1 and P235TR2 are quality levels under EN 10217.
TR2 = higher quality requirement and stricter control.
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