EN10210 is a widely adopted European standard for rectangular hollow sections (RHS), ensuring compliance with stringent requirements for physical properties, chemical composition, dimensional accuracy, and surface quality.
Developed by European standards organizations, this specification covers both hot-dip galvanized and non-galvanized rectangular steel tubes. It is extensively used in applications such as:
Construction
Bridge engineering
Machinery manufacturing
Material handling systems
Specification
Standard & Grade :EN10210 Carbon Seamless Steel Tubes
Ends:Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled/Threaded Ends
Packing:Bundle or bulk , wooden case or other seaworthy packing or for the client's requirement
Usage: ESeamless Non-Alloy Steel Tubes for Pressure Purposes with Specified Room Temperature Properties mainly used as boiler water tube, smoke tube, superheater tube, air preheater tube, and so
Dimensional Tolerances of EN10210 Carbon Seamless Steel Tubes
|
Square/Rectangular |
Circular/Ovals |
|
|
Outside dimension (D B and H) |
±1% with a min of ±0.5mm |
Circular ±1% with a min of ±0.5mm and maximum of ±10mm |
|
Thickness (T) |
-10% Note. Positive deviation limited by mass tolerance |
-10% Note. Positive deviation limited by mass tolerance |
|
Squareness of side |
90 degrees ±1 degree |
- |
|
External corner profile |
2T max at each corner* (EN10210 has 3T max). |
- |
|
Concavity/convexity (x) |
±1% of the side, measured independently of the tolerance on the outside dimension |
- |
|
Twist (V) |
2mm plus 0.5mm/m max. Section is placed on a flat surface with one end held flat. At the other end the height difference of the two lower corners is taken. |
– |
|
Mass (M) |
±6% on individual lengths |
±6% on individual lengths |
|
Straightness |
Max 0.2% of total length & 3mm over every 1m length |
Maximum 0.2% of the total length & 3mm over every 1m length. (The permitted tolerance is twice the value for H<250) |
|
Length |
+150mm/-0mm |
+150mm/-0mm |
* Excludes RHS 250 x 200, which is 3T max at each corner in line with EN10210
EN10210 CHS-Circular hollow sections – length and tolerances
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EN10210 CHS-Circular hollow sections – length and tolerances |
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Outside Diameter |
Welded |
|
||
|
mm |
Thickness mm |
Standard mill lengths m |
Special mill lengths m* |
Tolerance mm |
|
21.3 – 42.4 |
All |
6.0, 6.4, 7.5 |
5.4 – 7.5 |
+150-0 |
|
48.3 |
All |
6.0, 6.4, 7.5 & 10.0 |
5.4 – 14.6 |
+150-0 |
|
60.3 – 114.3 |
All |
6.0, 6.4, 7.5 & 10.0 |
5.0 – 14.6 |
+150-0 |
|
139.7 |
All |
7.5 & 10.0 |
6.0 – 14.5 |
+150-0 |
|
168.3 – 193.7 |
All |
7.5, 10.0 & 12.0 |
6.0 – 14.6 |
+150-0 |
|
219.1 – 508.0 |
All |
10.0 & 12.0 |
6.0 – 14.6 |
+150-0
|