EN 10210 | BS EN 10210 Hollow Structural Steel Tubes Manufacturer and Supplier – Brisk Steel
| Standard | EN 10210 / BS EN 10210 |
| Material | Non-alloy and fine-grain steels |
| Process | Hot-formed LSAW / ERW / SMLS |
| Non-alloy Steel Grade | S235JRH, S275J0H, S275J2H, S355J0H, S355J2H, S355K2H |
| Fine-grain steel Grade | S275NH, S275NLH, S355NH, S355NLH, S420NL, S420NLH, S460NH, S460NLH |
| Application | Structural use |
| Coating | Suitable for hot dip galvanized |
What is the EN10210?
This European Standard specifies technical delivery conditions for hot finished hollow sections of circular, square, rectangular or elliptical forms and applies to hollow sections formed hot, with or without subsequent heat treatment.
EN 10210 is identical to BS EN 10210, except that it applies to different countries. All of the following requirements are also applicable to BS EN 10210.
Chemical Compositon
For non-alloy steel structural hollow sections
| Chemical Composition - Cast Analysis For Product Thickness ≤ 120 mm | |||||||||
| Steel grade | Type of deoxidation a |
% by mass, maximum | |||||||
| C | Si | Mn | P | S | N b c | ||||
| Steel name | Steel number | Specified thickness (mm) | |||||||
| ≤40 | ＞40≤120 | ||||||||
| S235JRH | 1.0039 | FF | 0.17 | 0.20 | - | 1.40 | 0.040 | 0.040 | 0.009 |
| S275J0H | 1.0149 | FF | 0.20 | 0.22 | - | 1.50 | 0.035 | 0.035 | 0.009 |
| S275J2H | 1.0138 | FF | 0.20 | 0.22 | - | 1.50 | 0.030 | 0.030 | - |
| S355J0H | 1.0547 | FF | 0.22 | 0.22 | 0.55 | 1.60 | 0.035 | 0.035 | 0.009 |
| S355J2H | 1.0576 | FF | 0.22 | 0.22 | 0.55 | 1.60 | 0.030 | 0.030 | - |
| S355K2H | 1.0512 | FF | 0.22 | 0.22 | 0.55 | 1.60 | 0.030 | 0.030 | - |
|
a The deoxidation methods are designated as follows:
b It is permissible to exceed the specified values provided that for each increase of 0.001 % N the P max. content is also reduced by
c The maximum value for nitrogen does not apply if the chemical composition shows a minimum total Al content of 0.020 % with a |
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For Fine-grain steel structural hollow sections
| Chemical Composition - Cast Analyses For Product Thickness ≤ 65 mm | |||||||||||||||||
| Steel Grade | Type of Deoxidationa | Sub Groupb | % by Mass | ||||||||||||||
| Steel Name | Steel Number | C max. |
Si max. |
Mn | P max. |
S max. |
Nb max. |
V max. |
Al totalc min. |
Ti max. |
Cr max. |
Ni max. |
Mo max. |
Cud max. |
N max. |
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| S275NH | 1.0493 | GF | QS | 0.20 | 0.40 | 0.50 1.40 |
0.035 | 0.030 | 0.05 | 0.08 | 0.02 | 0.03 | 0.30 | 0.30 | 0.10 | 0.35 | 0.015 |
| S275NLH | 1.0497 | 0.030 | 0.025 | ||||||||||||||
| S355NH | 1.0539 | GF | QS | 0.20 | 0.50 | 0.90 1.65 |
0.035 | 0.030 | 0.05 | 0.12 | 0.02 | 0.03 | 0.30 | 0.50 | 0.10 | 0.35 | 0.020 |
| S355NLH | 1.0549 | 0.18 | 0.030 | 0.025 | |||||||||||||
| S420NH | 1.8750 | GF | SS | 0.22 | 0.60 | 1.00 1.70 |
0.035 | 0.030 | 0.05 | 0.20 | 0.02 | 0.03 | 0.30 | 0.80 | 0.10 | 0.70 | 0.025 |
| S420NLH | 1.8751 | 0.030 | 0.025 | ||||||||||||||
| S460NH | 1.8953 | GF | SS | 0.22 | 0.60 | 1.00 1.70 |
0.035 | 0.030 | 0.05 | 0.20 | 0.02 | 0.03 | 0.30 | 0.80 | 0.10 | 0.70 | 0.025 |
| S460NLH | 1.8956 | 0.030 | 0.025 | ||||||||||||||
| a The deoxidation method is designated as follows: GF = fully killed steel containing nitrogen binding elements in amounts sufficient to bind the available nitrogen and having a fine grain structure. b QS = quality steel. SS = special steel. c If sufficient N-binding elements are present, the minimum total Al content does not apply. d If the copper content is greater than 0.30 % then the nickel content shall be at least half of the copper content. |
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Carbon Equivalent Value
When determining the CEV the following formula shall be used: CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15
- Non-alloy Steel Maximum CEV:
| Maximum carbon equivalent value (CEV)based on cast analysis | |||||
| Steel Grade | Maximum CEV In % for specified thicknesses in mm | ||||
| Steel Name | Steel Number | ≤16 | ＞16≤40 | ＞40≤65 | ＞65≤120 |
| S235JRH | 1.0039 | 0.37 | 0.39 | 0.41 | 0.44 |
| S275J0H | 1.0149 | 0.41 |
0.43 |
0.45 | 0.48 |
| S275J2H | 1.0138 | 0.41 |
0.43 |
0.45 | 0.48 |
| S355J0H | 1.0547 | 0.45 | 0.47 | 0.50 | 0.53 |
| S355J2H | 1.0576 | 0.45 | 0.47 | 0.50 | 0.53 |
| S355K2H | 1.0512 | 0.45 | 0.47 | 0.50 | 0.53 |
- Fine Grain Steel Maximum CEV:
| Maximum carbon equivalent value (CEV)based on cast analysis | |||
| Steel Grade | Maximum CEV In % for specified thicknesses in mm | ||
| Steel Name | Steel Number | ≤16 | ＞16≤65 |
| S275NH | 1.0493 | 0.40 | 0.40 |
| S275NLH | 1.0497 | ||
| S355NH | 1.0539 | 0.43 | 0.45 |
| S355NLH | 1.0549 | ||
| S420NH | 1.8750 | 0.50 | 0.52 |
| S420NLH | 1.8751 | ||
| S460NH | 1.8953 | 0.53 | 0.55 |
| S460NLH | 1.8956 | ||
Mechanical Properties
For non-alloy steel structural hollow sections
| Mechanical Properties Of Non-Alloy Structural Steel Hollow Section | |||||||||||||||||
| Steel Grade |
Minimum Yield Strength ReH
|
Tensile Strength Rm MPa |
Minimum Elongation Aa b % |
Minimum Impact Energy KVd J |
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| Specified Thickness mm |
Specified Thickness mm |
Specified Thickness mm |
At Test Temperature of |
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| Steel Name | Steel Number | ≤ 16 | > 16 ≤ 40 | > 40 ≤ 63 | > 63 ≤ 80 | > 80 ≤ 100 | > 100 ≤ 120 | ≤ 3 | > 3 ≤ 100 | >100 ≤ 120 | ≤ 40 | > 40 ≤ 63 | > 63 ≤ 100 | > 100 ≤ 120 | -20℃ | 0℃ | 20℃ |
| S235JRHc | 1.0039 | 235 | 225 | 215 | 215 | 215 | 195 | 360-510 | 360-510 | 350-500 | 26 | 25 | 24 | 22 | – | – | 27 |
| S275J0Hc | 1.0149 | 275 | 265 | 255 | 245 | 235 | 225 | 430-580 | 410-560 | 400-540 | 23 | 22 | 21 | 19 | – | 27 | – |
| S275J2H | 1.0138 | 27 | – | – | |||||||||||||
| S355J0Hc | 1.0547 | 355 | 345 | 335 | 325 | 315 | 295 | 510-680 | 470-630 | 450-600 | 22 | 21 | 20 | 18 | – | 27 | – |
| S355J2H | 1.0576 | 27 | – | – | |||||||||||||
| S355K2H | 1.0512 | 40e | – | – | |||||||||||||
| a Longitudinal values. Transverse values are 2 % lower. b For thicknesses < 3 mm, see 9.2.2. c The impact properties are verified only when Option 1.3 is specified. d For impact properties for reduced section test pieces see 6.6.2. e This value corresponds to 27J at –30 °C (see EN 1993-1-1). |
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For Fine-grain steel structural hollow sections
| Mechanical Properties Of Fine Grain Structural Steel Hollow Sections | |||||||||
| Steel Grade | Minimum Yield Strength ReH MPa |
Tensile Strength Rm MPa at Specified Thickness ≤ 65 mm |
Minimum Elongation A % at Specified Thickness ≤ 65 mm |
Minimum Impact Energy KVa J |
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| Steel Name | Steel Number | Specified Thickness mm |
At Test Temperature of | ||||||
| ≤ 16 | > 16 ≤ 40 | > 40 ≤ 65 | Longitudinal | Transverse | -50℃ | -20 °C | |||
| S275NH | 1.0493 | 275 | 265 | 255 | 370-510 | 24 | 22 | – | 40b |
| S275NLH | 1.0497 | 27 | – | ||||||
| S355NH | 1.0539 | 355 | 345 | 335 | 470-630 | 22 | 20 | – | 40b |
| S355NLH | 1.0549 | 27 | – | ||||||
| S420NH | 1.8750 | 420 | 400 | 390 | 520-680 | 19 | 17 | – | 40b |
| S420NLH | 1.8751 | 27 | – | ||||||
| S460NH | 1.8953 | 460 | 440 | 430 | 540-720 | 17 | 15 | – | 40b |
| S460NLH | 1.8956 | 27 | – | ||||||
| a For impact properties for reduced section test pieces, see 6.6.2. b This value corresponds to 27J at –30 °C (see EN 1993-1-1). |
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Unless otherwise required, the impact strength of grades JR and J0 does not need to be verified.
Dimension
This document specifies tolerances for hot finished circular, square, rectangular and elliptical structuralhollow sections, manufactured in wall thicknesses up to 120mm, in the following size ranges:
- Circular: Outside diameters up to 2 500 mm;
- Square: Outside dimensions up to 800 mm×800 mm;
- Rectangular: Outside dimensions upto 750mm×500 mm;
- Elliptical: Outside dimensions up to 500 mm×250mm.
Dimensional Tolerance
Tolerances on Shape, Straightness, and Mass
| Characteristic | Circular hollow sections | Square and rectangular hollow sections | Elliptical hollow sections |
| Outside Dimensions (D, B, H) | ±1 % with a minimum of ± 0.5 mm | ±1 % with a minimum of ± 0.5 mm | |
| and a maximum of ± 10 mm | |||
| Thickness (T) | -10% | ||
| Out-of-roundness (O) | 2 % for hollow sections having a diameter to thickness ratio not exceeding 100 | - | |
| Concavity/Convexity (x1, x2) | - | 1% | - |
| Squareness of side (θ) | - | 90° ± 1° | - |
| External corner profile (C1, C2 or R) | - | 3 T maximum at each corner | - |
| Twist (V) | - | 2 mm plus 0.5 mm/m length | |
| Straightness (e) | 0.2 % of total length and 3 mm over any 1 m length | ||
| Mass (M) |
－6 %/+ 8 % on individual delivered lengths | ||
Tolerances on Length
| Type of length a | Range of length or length L | Tolerance |
| Random length | 4000 ≤ L ≤ 16000 with a range of 2000 per order item | 10 % of sections supplied may be below the minimum for the ordered range but not shorter than 75 % of the minimum range length |
| Approximate length | 4000 ≤ L ≤ 16000 | ± 500 mm b |
| Exact length | 2000 ≤ L ≤ 6000 | 0 – + 10 mm |
| 6000 < L c | 0 – + 15 mm | |
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a The manufacturer shall establish at the time of inquiry and order the type of length required and the length range or length.
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Tolerance on Height of Internal and External Weld Seam
| Thickness, T | Maximum weld bead height, mm |
| ≤ 14.2 | 3.5 |
| > 14.2 | 4.8 |
Note: Applicable to submerged arc welding hollow pipe section inside and outside the weld height tolerance requirements.
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