S235JRH
S235JRH
The EN 10219 S235JRH pipe is made in accordance with all applicable ASTM, ASME, and international standards. These pipes have greater corrosion resistance and are suitable for use in a variety of temperatures.
Cold-Formed S235JRH Steel Welded Pipe has tensile strengths ranging from 316Mpa to 510Mpa and yield strength of at least 235Mpa. These pipes may be readily extended by 26%. The S235JRH Tube is widely utilized in civil engineering applications such as bridge construction, structural frames, factory structures, and mechanical engineering systems.
Why choose tuspipe?
Since 1998, Tianjin United Steel Pipe Co., Ltd (TUSPIPE) has been committed to supplying high-quality line pipes.
With over 500,000 tons annual production capacity, the company serves various fields and industries, such as oil & gas exploitation and transmission, ship & auto-building, water & electricity, environmental protection, mechanical engineering, infrastructure construction and etc.
TUSPIPE places a premium on product quality and rigorous product quality control. In order to maintain good product quality, the company has established a Test & Inspection Center since 2004. With a series of state-of-the-art tests and inspection equipment, the test & inspection center is able to perform the tensile tests, hydro tests, impact tests, DWTT, etc.
Designation for EN 10219 S235JRH Steel Grade
- The number of this European Standard (EN 10219 specification);
- The capital letter S for structural steel;
- The indication of the minimum specified yield strength for thickness ≤16mm is expressed in N/mm2;
- The capital letters JR for the qualities with specified impact properties at room temperature;
- The capital letter J and a number 0 or 2 for the qualities with specified impact properties at 0℃ and -20℃ respectively;
- The capital letter H indicates hollow sections
Dimensions and Sizes of EN10219 S235JRH Pipe
| DN | O. D. | W. T. | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | mm | SCH5S | SCH10S | SCH10 | SCH20 | SCH30 | SCH40 | SCH60 | SCH80 | SCH100 | SCH120 | SCH140 | SCH160 | Sth | XS | XXS | |
| 50 | 2″ | 60.3 | 1.65 | 2.77 | – | – | – | 3.91 | – | 5.54 | – | – | – | 8.74 | 3.91 | 5.54 | 11.07 |
| 65 | 2 1/2″ | 73 | 2.11 | 3.05 | – | – | – | 5.16 | – | 7.01 | – | – | – | 9.53 | 5.16 | 7.01 | 14.02 |
| 80 | 3″ | 88.9 | 2.11 | 3.05 | – | – | – | 5.49 | – | 7.62 | – | – | – | 11.13 | 5.49 | 7.52 | 15.24 |
| 90 | 3 1/2″ | 101.6 | 2.11 | 3.05 | – | – | – | 5.74 | – | 8.08 | – | – | – | – | 5.74 | 8.08 | – |
| 100 | 4″ | 114.3 | 2.11 | 3.05 | – | – | – | 6.02 | – | 8.58 | – | 11.13 | – | 13.49 | 6.02 | 8.56 | 17.12 |
| 125 | 5″ | 141.3 | 2.77 | 3.4 | – | – | – | 6.55 | – | 9.53 | – | 12.7 | – | 15.88 | 6.55 | 9.53 | 18.05 |
| 150 | 6″ | 168.3 | 2.77 | 3.4 | – | – | – | 7.11 | – | 10.97 | – | 14.27 | – | 18.26 | 7.11 | 10.97 | 21.95 |
| 200 | 8″ | 219.1 | 2.77 | 3.76 | – | 6.35 | 7.04 | 8.18 | 10.31 | 12.7 | 15.09 | 18.26 | 20.62 | 23.01 | 8.18 | 12.7 | 22.23 |
| 250 | 10″ | 273.1 | 3.4 | 4.19 | – | 6.35 | 7.8 | 9.27 | 12.7 | 15.09 | 18.26 | 21.44 | 25.4 | 28.58 | 9.27 | 12.7 | 25.4 |
| 300 | 12″ | 323.9 | 3.96 | 4.57 | – | 6.35 | 8.38 | 10.31 | 14.27 | 17.48 | 21.44 | 25.4 | 28.58 | 33.32 | 9.53 | 12.7 | 25.4 |
| 350 | 14″ | 355.5 | 3.96 | 4.78 | 6.35 | 7.92 | 9.53 | 11.13 | 15.09 | 19.05 | 23.83 | 27.79 | 31.75 | 35.71 | 9.53 | 12.7 | – |
| 400 | 16″ | 406.4 | 4.19 | 4.78 | 6.35 | 7.92 | 9.53 | 12.7 | 16.66 | 21.44 | 26.19 | 30.96 | 36.53 | 40.49 | 9.53 | 12.7 | – |
| 450 | 18″ | 457.2 | 4.19 | 4.78 | 6.35 | 7.92 | 11.13 | 14.27 | 19.05 | 23.83 | 39.36 | 34.93 | 39.67 | 45.24 | – | – | – |
| 500 | 20″ | 508 | 4.78 | 5.54 | 6.35 | 9.53 | 12.7 | 15.09 | 20.62 | 26.19 | 32.54 | 38.1 | 44.45 | 50.01 | – | – | – |
| 550 | 22″ | 558.8 | 4.78 | 5.54 | 6.35 | 9.53 | 12.7 | – | 22.23 | 28.58 | 34.93 | 41.28 | 47.63 | 53.98 | – | – | – |
| 600 | 24″ | 609.6 | 5.54 | 6.35 | 6.35 | 9.53 | 14.27 | 17.48 | 24.61 | 30.96 | 38.89 | 46.02 | 52.37 | 59.54 | – | – | – |
Weldability of EN 10219 S235JRH Pipe
This European standard specifies weldable steel. EN 1011-1 and EN 1011-2 provide the essential specifications for welding items covered by this European standard.
The greatest concern while welding these materials is the development of cold cracking in the welded zone as the thickness, strength level, and CEV of the product increase. Cold cracking occurs as a result of the following factors:
- Enhanced diffusible hydrogen concentrations in the weld metal;
- Brittle structure in the heat-affected zone;
- High tensile stress concentrations in the welded joint
Chemical composition of S235JRH for product thicknesses ≤ 40 mm (Heat analysis in %)
| Steel Grade | Material Number | Type of Deoxidation1) | C | Si | Mn | P | S | N2) |
|---|---|---|---|---|---|---|---|---|
| S235JRH | 1.0039 | FF | ≤ 0,17 | – | ≤ 1,40 | ≤ 0,040 | ≤ 0,040 | ≤ 0,009 |
| FF = Fully killed steel containing nitrogen binding elements in amounts sufficient to bind available nitrogen (e. g. min. 0,020 % total Al or 0,015 % soluble Al). | ||||||||
| The maximum value for nitrogen does not apply if the chemical composition shows a minimum total Al content of 0,020 % with a minimum Al/N ratio of 2:1, or if sufficient other N-binding elements are present. The N-binding elements shall be recorded in the Inspection Document. | ||||||||
Mechanical Properties of S235JRH at Room Temperature
| Steel Grade | Material Number | Yield Strength ReH N/mm² min. for Nominal Wall Thickness in mm | Tensile Strength Rm N/mm² for Nominal Wall Thickness in mm | Elongation A 4) % min. for Nominal Wall Thickness in mm | Impact Energy KV5) J min. at a Temperature °C of | ||||
|---|---|---|---|---|---|---|---|---|---|
| £ 16 | > 16 £ 40 | < 3 | ≥ 3 ≤40 | ≤40 | -20 | 0 | 20 | ||
| S235JRH1) | 1.0039 | 235 | 225 | 360 -510 | 360 – 510 | 242) | – | – | 27 |
| The impact test has to be proved only if option 1.3 is determined. For wall thicknesses > 3 mm and section sizes D/T < 15 (circular) and (B+H)/2T x 12,5 (square or rectangular) the minimum elongation is reduced by 2. For wall thicknesses £ 3 mm the minimum value for elongation is 17 %. For section sizes D/T < 15 (circular) and (B+H)/2T x 12,5 (square or rectangular) the minimum elongations are reduces by 2. For wall thickness below 3 mm see DIN EN 10219-1, 9.2.2. For impact tests with test pieces with reduced cross-section see DIN EN 10219-1, 6.7.2. | |||||||||
Manufacturing Tolerances of EN 10219 S235JRH Pipe
| Characteristic | Round Hollow Sections | Square and Rectangular Hollow Sections |
|---|---|---|
| Outside Dimension | ± 1% with min ± 0.5mm and max ± 10mm | ± 1% with min of ± 0.5mm |
| Thickness (T) | T≤5mm: ±10% | T≤5mm: ±10% |
| T>5mm: ± 0.5mm | T>5mm: ± 0.5mm | |
| Out-of-Roundness | 2% | – |
| Convexity | – | Max .8% with min 0.5mm |
| Squareness of side | – | 90° ± 1° |
| External Corner Profile | – | T≤6mm: 1.6T to 2.4T |
| – | 6<T≤10mm: 2.0T to 3.0T | |
| – | T,10: 2.4T to 3.6T | |
| Twist | – | 2mm plus 0.5mm/m |
| Straightness | 0.2% of total | 0.15% of total |
| Mass | ±6% on individual length | |
Inspection and Testing of EN 10219 S235JRH Hollow Sections of Non-alloy Steels
EN 10219 S235JRH is tensile tested according to EN 10002-1 and Charpy impact tested according to EN 10045-1.
| Inspection Requirements | Inspection Frequency | |||
|---|---|---|---|---|
| Type of test | Non-specific inspection | Specific inspection | ||
| Mandatory tests | 1 | Cast analysis | One result per delivery item | One per cast |
| 2 | Tensile test | One result per delivery item | One per test unit ( b) | |
| 3 | Impact test for Qualities J2 and K2 only | Not applicable | One set per test unit (b) | |
| 4 | Surface condition and dimensions | – | – | |
| 5 | NDT of the weld | Not applicable | All products, full length | |
| Optional tests | 6 | Product analysis | Not applicable | One per test unit a |
| 7 | Cast analysis additional elements | Not applicable | See Option 1.2 | |
| 8 | Impact test for qualities JR and J0 | Not applicable | One set per test unit (b) | |
| b – Longitudinal or transverse samples at the discretion of the manufacturer. | ||||
