EN 10219 standard details

EN 10219 is a standard that outlines the specifications for cold-formed welded structural hollow sections made from non-alloy and fine-grained steels. This standard provides detailed information on material properties, dimensions, and manufacturing tolerances to ensure quality and consistency in steel products used in construction and engineering applications. Below is a table summarizing key mechanical properties of various steel grades according to EN 10219:

EN 10219 standard details Cold formed welded structural hollow sections from non-alloy steels and fine-grained steels.

Material	Thickness in mm				Min. Elongation (%)
	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:

Characteristic	Round Hollow Sections	Square and Rectangular Hollow Sections
Outside DimensionÂ	± 1% with min ± 0.5mm and max ± 10mm	± 1% with min of ± 0.5mm
Thickness (T)Â	T≤5mm: ±10%	T≤5mm: ±10%
	T>5mm: ± 0.5mm	T>5mm: ± 0.5mm
Out-of-RoundnessÂ	2%	-
Convexity	-	Max .8% with min 0.5mm
Squareness of side	-	90° ± 1°
External Corner ProfileÂ	-	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 totalÂ	0.15% of total
Mass	±6% on individual length

The EN 10219 standard ensures that all structural hollow sections meet strict requirements for strength, durability, and dimensional accuracy. These specifications are essential for engineers and architects when selecting materials for load-bearing structures, ensuring safety, reliability, and compliance with international standards.

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