EN 10219
EN 10219
EN 10219 specifies cold-formed welded structural pipes made of non-alloy and fine grain steels.
This section of the European Standard specifies the technical delivery requirements for cold-formed welded structural hollow sections in circular, square, or rectangular shapes. It applies to structural hollow sections created cold without later heat treatment.
EN 10219-1:2006 is a European Standard with the status of a British Standard. It is made up of the following components:
− Part 1: Technical delivery conditions
− Part 2: Tolerances, dimensions, and sectional properties
PRODUCT FEATURES
The Classified Steels of EN10219
The steels are classified in EN 10219 as follows similarly to the classification provided in the EN 10210 standard:
- Non-alloy steels
- Fine-grain steels
Dimensions and Sizes of EN10219 Pipe
NPS | O. D. | Nominal Wall Thickness | |||||||||||||||
DN | Inch | mm | SCH5S | SCH10S | SCH10 | SCH20 | SCH30 | SCH40 | SCH60 | SCH80 | SCH100 | SCH120 | SCH140 | SCH160 | STD | 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 | – | – | – |
Steel Grade of EN 10219
– Designation for Non-alloy Steel Structural Hollow Sections:
- 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
– Example with EN 10219 S275JOH:
- EN 10219 – Number of the European Standard
- S – Structural steel
- 275 – Minimum yield strength (N/mm2) for thickness not greater than 16mm
- J0 – Impact properties, 27J minimum at 0℃
- H – Hollow section
Weldability of EN 10219 Pipe
Weldable steels are specified in this European standard. EN 1011-1 and EN 1011-2 specify the main standards for welding products under this European standard.
When welding these products, the greatest danger is the development of cold cracking in the welded zone as the product thickness, strength level, and CEV rise. Cold cracking is a result of a combination of the following factors:
- elevated diffusible hydrogen levels in the weld metal;
- a brittle structure in the heat-affected zone;
- and large tensile stress concentrations in the welded joint
Mechanical Properties of EN 10219 Pipe
Material | Min Yield Strength | Tensile Strength (N/mm2) | Min. Elongation (%) | ||
Thickness in mm | |||||
t<16 | 16>t<40 | t<3 | 3>t<40 | t<40 | |
S235JRH | 235 | 225 | 360-510 | 340-470 | 24 |
S275J0H | 275 | 265 | 430-580 | 410-560 | 20 |
S275J2H | 275 | 265 | 430-580 | 410-560 | 20 |
S355J0H | 355 | 345 | 510-680 | 490-630 | 20 |
S355J2H | 355 | 345 | 510-680 | 490-630 | 20 |
Manufacturing Tolerances of EN 10219 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 Hollow Sections of Non-alloy Steels
EN 10219 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. | ||||
INSPECTION AND TESTING OF EN 10219 HOLLOW SECTIONS OF Fine-grain Steels
Inspection Requirements | Inspection Frequency | ||
Type of test | Specific inspection | ||
Mandatory tests | 1 | Cast analysis | One per cast |
2 | Tensile test | One per test unitF( b) | |
3 | Impact test | One set per test unit (b) | |
4 | Surface condition and dimensions | Â | |
5 | NDT of the weld | All products, full length | |
Optional tests | 6 | Product analysis | One per test unit a |
b – Longitudinal or transverse samples at the discretion of the manufacturer. | |||
Marking of EN 10219
Each of the square and rectangular hollow sections shall be marked with the following information.
- Specification designation
- Grade letter
- Dimension
- Heat number
- Other customers requirement
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