EN 10219 Cold formed welded steel structural Pipe Specification

EN 10219

EN 10219 specifies the requirements for cold-formed welded structural hollow sections of cold-formed, non-alloy, and fine-grain steel tubes.

The standard is divided into 3 parts. The first part includes the technical delivery requirements of EN 10219 tubes. Part 1 covers the tolerances, dimensions, and cross-sectional properties of EN 10219 tubes. Part 3 is the technical delivery conditions of EN 10219 tubes for high-strength and weathering steel.

This standard is commonly used in the construction of steel structures, civil engineering, and the installation of oil, gas, water or electricity pipelines.

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EN 10219 Steel Grade

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S235JRH

Yield strength: ≥235 MPa
Impact toughness: 27J @ 0°C
Application: Commonly used in building frames, machinery manufacturing, bridges and infrastructure, etc.

S355J0H

Yield strength: ≥355 MPa
Impact toughness: 27J @ 0°C
Application: Used in high-rise building structures or mechanical equipment that require high strength and high stability.

ERW_pipe_supplier_carbon_steel_pipe_UNIASEN

S275J0H

Yield strength: ≥275 MPa
Impact toughness: 27J @ 0°C
Application: Commonly used in medium-strength structural engineering, such as stairs, railings and small and medium-sized building structures.

S355J2H

Yield strength: ≥355 MPa
Impact toughness: 27J @ -20°C
Application: Suitable for high-strength structures that need to work in low-temperature environments.

Natural Gas Pipeline Project in Xinjiang City, China-UNIASEN carbon steel pipe project

S275J2H

Yield strength: ≥275 MPa
Impact toughness: 27J @ -20°C
Application: It has the same strength as S275J0H, but is more suitable for working in low temperature environments.

S355K2H

Yield strength: ≥355 MPa
Impact toughness: 27J @ -20°C
Application: Its strength is the same as S355J2H, but it is more suitable for use in low temperature environments.

Specification of EN 10219

STANDARD	EN 10219
Procedure	ERW
Dimensions	21.3mm – 1219mm
	20×20-400×400mm
	40×20-480×240mm
Thickness	2.0mm – 40mm
Thickness	3 – 18 mtrs
Unit Length	2.4 – 11.6m
Steel Grade	S235JRH, S355J0H, S275J0H, S355J2H, S275J2H, S355K2H
Surface Coating	Black lacquer coating and Hot-Dipped Zinc-Coated (Galvanized), FBE 3PE 3PP
End Type	Plain, Bevelled, Threaded, Grooved, Shouldered
Joint Method	Fitting, Flange, Coupling, Clamp, Pipe Shoulder, Welding
Pipe Machining	Welding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding

EN 10219 Dimensions And Sizes

Each size is precisely calibrated to EN 10219 standards, ensuring our pipes perform optimally in a wide range of applications.

Outside Diameter (mm)	Nominal Dimensions Of a Limited Range Of Circular Hollow Sections (mm)
21.3	2.0	2.5	3.0	–	–	–	–	–	–	–
26.9	2.0	2.5	3.0	–	–	–	–	–	–	–
33.7	2.0	2.5	3.0	–	–	–	–	–	–	–
42.4	2.0	2.5	3.0	4.0	–	–	–	–	–	–
48.3	2.0	2.5	3.0	4.0	5.0	–	–	–	–	–
60.3	2.0	2.5	3.0	4.0	5.0	–	–	–	–	–
76.1	2.0	2.5	3.0	4.0	5.0	6.0	6.3	–	–	–
88.9	2.0	2.5	3.0	4.0	5.0	6.0	6.3	–	–	–
101.6	2.0	2.5	3.0	4.0	5.0	6.0	6.3	–	–	–
114.3	2.0	2.5	3.0	4.0	5.0	6.0	6.3	–	–	–
139.7	3.0	4.0	5.0	6.0	6.3	8.0	10.0	–	–	–
168.3	3.0	4.0	5.0	6.0	6.3	8.0	10.0	–	–	–
177.8	4.0	5.0	6.0	6.3	8.0	10.0	12.0	12.5	–	–
193.7	4.0	5.0	6.0	6.3	8.0	10.0	12.0	12.5	–	–
219.1	4.0	5.0	6.0	6.3	8.0	10.0	12.0	12.5	–	–
244.5	5.0	6.0	6.3	8.0	10.0	12.0	12.5	–	–	–
273.0	5.0	6.0	6.3	8.0	10.0	12.0	12.5	–	–	–
323.9	5.0	6.0	6.3	8.0	10.0	12.0	12.5	–	–	–
355.6	5.0	6.0	6.3	8.0	10.0	12.0	12.5	16.0	20.0	–
406.4	6.0	6.3	8.0	10.0	12.0	12.5	16.0	20.0	25.0	–
457	6.0	6.3	8.0	10.0	12.0	12.5	16.0	20.0	25.0	30.0
508	6.0	6.3	8.0	10.0	12.0	12.5	16.0	20.0	25.0	30.0
610	6.0	6.3	8.0	10.0	12.0	12.5	16.0	20.0	25.0	30.0
711	6.0	6.3	8.0	10.0	12.0	12.5	16.0	20.0	25.0	30.0
762	6.0	6.3	8.0	10.0	12.0	12.5	16.0	20.0	25.0	30.0
813	8.0	10.0	12.0	12.5	16.0	20.0	25.0	30.0	–	–
914	8.0	10.0	12.0	12.5	16.0	20.0	25.0	30.0	–	–
1016	8.0	10.0	12.0	12.5	16.0	20.0	25.0	30.0	–	–
1067	10.0	12.0	12.5	16.0	20.0	25.0	30.0	–	–	–
1168	10.0	12.0	12.5	16.0	20.0	25.0	–	–	–	–
1219	10.0	12.0	12.5	16.0	20.0	25.0	–	–	–	–
Other sizes and thicknesses within the scope of this standard may be available. Outside diameters up to 2 500 mm, wall thicknesses up to 40 mm.

Specified side dimension (mm)	Nominal Dimensions Of a Limited Range Of Square Hollow Sections (mm)
20	2.0	–	–	–	–	–	–	–	–
25	2.0	2.5	3.0	–	–	–	–	–	–
30	2.0	2.5	3.0	–	–	–	–	–	–
40	2.0	2.5	3.0	4.0	–	–	–	–	–
50	2.0	2.5	3.0	4.0	5.0	–	–	–	–
60	2.0	2.5	3.0	4.0	5.0	6.0	6.3	–	–
70	2.5	3.0	4.0	5.0	6.0	6.3	–	–	–
80	3.0	4.0	5.0	6.0	6.3	8.0	–	–	–
90	3.0	4.0	5.0	6.0	6.3	8.0	–	–	–
100	3.0	4.0	5.0	6.0	6.3	8.0	10.0	12.0	12.5
120	3.0	4.0	5.0	6.0	6.3	8.0	10.0	12.0	12.5
140	4.0	5.0	6.0	6.3	8.0	10.0	12.0	12.5	–
150	4.0	5.0	6.0	6.3	8.0	10.0	12.0	12.5	16.0
160	4.0	5.0	6.0	6.3	8.0	10.0	12.0	12.5	16.0
180	4.0	5.0	6.0	6.3	8.0	10.0	12.0	12.5	16.0
200	4.0	5.0	6.0	6.3	8.0	10.0	12.0	12.5	16.0
220	5.0	6.0	6.3	8.0	10.0	12.0	12.5	16.0	–
250	5.0	6.0	6.3	8.0	10.0	12.0	12.5	16.0	–
260	6.0	6.3	8.0	10.0	12.0	12.5	16.0	–	–
300	6.0	6.3	8.0	10.0	12.0	12.5	16.0	–	–
350	8.0	10.0	12.0	12.5	16.0	–	–	–	–
400	10.0	12.0	12.5	16.0	–	–	–	–	–
Other sizes and thicknesses within the scope of this standard may be available. Outside dimensions up to 500 mm × 500 mm, wall thicknesses up to 40 mm.

Specified Side Dimensions (mm)		Nominal Dimensions Of a Limited Range Of Square Hollow Sections (mm)
40	20	2.0	2.5	3.0	–	–	–	–	–
50	30	2.0	2.5	3.0	4.0	–	–	–	–
60	40	2.0	2.5	3.0	4.0	5.0	–	–	–
70	50	2.0	2.5	3.0	4.0	5.0	–	–	–
80	40	2.0	2.5	3.0	4.0	5.0	–	–	–
80	60	2.0	2.5	3.0	4.0	5.0	–	–	–
90	50	2.0	2.5	3.0	4.0	5.0	–	–	–
100	40	2.5	3.0	4.0	5.0	–	–	–	–
100	50	2.5	3.0	4.0	5.0	6.0	6.3	–	–
100	60	2.5	3.0	4.0	5.0	6.0	6.3	–	–
100	80	2.5	3.0	4.0	5.0	6.0	6.3	–	–
120	60	2.5	3.0	4.0	5.0	6.0	6.3	8.0	–
120	80	3.0	4.0	5.0	6.0	6.3	8.0	–	–
140	80	4.0	5.0	6.0	6.3	8.0	–	–	–
150	100	4.0	5.0	6.0	6.3	8.0	10.0	12.0	12.5
160	80	4.0	5.0	6.0	6.3	8.0	10.0	12.0	12.5
180	100	4.0	5.0	6.0	6.3	8.0	10.0	12.0	12.5
200	100	4.0	5.0	6.0	6.3	8.0	10.0	12.0	12.5
200	120	4.0	5.0	6.0	6.3	8.0	10.0	12.0	12.5
250	150	5.0	6.0	6.3	8.0	10.0	12.0	12.5	16.0
260	180	5.0	6.3	8.0	10.0	12.0	12.5	16.0	–
300	100	6.0	6.3	8.0	10.0	12.0	12.5	16.0	–
300	150	6.0	6.3	8.0	10.0	12.0	12.5	16.0	–
300	200	6.0	6.3	8.0	10.0	12.0	12.5	16.0	–
300	250	6.0	6.3	8.0	10.0	12.0	12.5	16.0	–
400	200	8.0	12.5	16.0	–	–	–	–	–
400	300	8.0	10.0	12.0	12.5	16.0	–	–	–
Other sizes and thicknesses within the scope of this standard may be available. Outside dimensions up to 500 mm × 300 mm, wall thicknesses up to 40 mm

Chemical Requirement

The following are the chemical composition requirements for EN 10219 hollow structural pipes.

Chemical Composition — Cast Analyses For Product Thicknesses ≤40 Mm, Feedstock Condition N a
Steel grade		Type of deoxidation b	Classification c	% by mass
Steel name	Steel number			C max.	Si max.	Mn	P max.	S max.	Nb max.	V max.	Al total d min.	Ti max.	Cr max.	Ni max.	Mo max.	Cu e max.	N max.
S275NH	1.0493	GF	QS	0.20	0.40	0.50- 1.40	0.035	0.030	0.050	0.05	0.020	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	0.050	0.12	0.020	0.03	0.30	0.50	0.10	0.35	0.015
S355NLH	1.0549			0.18			0.030	0.025
S460NH	1.8953	GF	SS	0.20	0.60	1.00- 1.70	0.035	0.030	0.050	0.20	0.020	0.03	0.30	0.80	0.10	0.70	0.025
S460NLH	1.8956						0.030	0.025
a See 6.3. b 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 grained structure. c QS = quality steel; SS = special steel. d If sufficient N-binding elements are present, the minimum total Al content does not apply. e If the copper content is greater than 0.30 % then the nickel content shall be at least half of the copper content.

Chemical Composition – Cast Analysis For Product Thicknesses ≤ 40 Mm, Feedstock Condition M a
Steel Grade		Type of Deoxidation b	Classification c	% by Mass
Steel Name	Steel Number			C max.	Si max.	Mn max.	P max.	S max.	Nb max.	V max.	Al total d min.	Ti max.	Ni max.	Mo e max.	N max.
S275MH	1.8843	GF	SS	0,13	0,50	1,50	0,035	0,030	0,050	0,08	0,020	0,050	0,30	0,20	0,020
S275MLH	1.8844						0,030	0,025
S355MH	1.8845	GF	SS	0,14	0,50	1,50	0,035	0,030	0,050	0,10	0,020	0,050	0,30	0,20	0,020
S355MLH	1.8846						0,030	0,025
S420MH	1.8847	GF	SS	0,16	0,50	1,70	0,035	0,030	0,050	0,12	0,020	0,050	0,30	0,20	0,020
S420MLH	1.8848						0,030	0,025
S460MH	1.8849	GF	SS	0,16	0,60	1,70	0,035	0,030	0,050	0,12	0,020	0,050	0,30	0,20	0,025
S460MLH	1.885						0,030	0,025
a See 6.3. b 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 grained structure. c SS = special steel. d If sufficient N-binding elements are present, the minimum total Al content does not apply. e The total sum of Cr, Cu and Mo shall not be higher than 0,60 %.

Maximum Carbon Equivalent Value Based On Cast Analysis
Steel Grade		Maximum CEV for Nominal Thicknesses ≤ 40 mm %
Steel Name	Steel Number	–
S275NH S275NLH	1.0493 1.0497	0.40
S275MH S275MLH	1.8843 1.8844	0.34
S355NH S355NLH	1.0539 1.0549	0.43
S355MH S355MLH	1.8845 1.8846	0.39
S420MH S420MLH	1.8847 1.8848	0.43
S460NH S460NLH	1.8953 1.8956	0.53
S460MH S460MLH	1.8849 1.8850	0.46

Mechanical Requirement

The following are the mechanical requirements for hollow structural pipes according to EN 10219.

Mechanical Properties Of Hollow Sections In Thicknesses ≤ 40 Mm — Feedstock Material Condition N
Steel Grade		Minimum Yield Strength ReH MPa		Tensile Strength Rm MPa	Minimum Elongation A a b %	Minimum Impact Energy KV c J
Steel Name	Steel Number
		Specified Thickness mm		Specified Thickness mm	Specified Thickness mm	at Test Temperature of
		≤ 16	> 16 ≤ 40	≤ 40	≤ 40	-50 °C	-20 °C
S275NH	1.0493	275	265	370-510	24	–	40 d
S275NLH	1.0497					27	–
S355NH	1.0539	355	345	470-630	22	–	40 d
S355NLH	1.0549					27	–
S460NH	1.8953	460	440	540-720	17	–	40 d
S460NLH	1.8956					27	–
a For section sizes D/T < 15 (circular) and (B+H)/2T < 12,5 (square and rectangular) the minimum elongation is reduced by 2. b For thicknesses < 3 mm see 9.2.2. c For impact properties for reduced section test pieces see 6.7.2. d This value corresponds to 27J at –30 °C (see EN 1993-1-1).

Mechanical Properties Of Hollow Sections In Thicknesses ≤ 40 Mm — Feedstock Material Condition M
Steel Grade		Minimum Yield Strength ReH MPa		Tensile Strength Rm MPa	Minimum Elongation A a b %	Minimum Impact Energy KV c J
Steel Name	Steel Number
		Specified Thickness mm		Specified Thickness mm	Specified Thickness mm	at Test Temperature of
		≤ 16	> 16 ≤ 40	≤ 40	≤ 40	-50 °C	-20 °C
S275MH	1.8843	275	265	360-510	24	–	40 d
S275MLH	1.8844					27	–
S355MH	1.8845	355	345	450-610	22	–	40 d
S355MLH	1.8846					27	–
S420MH	1.8847	420	400	500-660	19	–	40 d
S420MLH	1.8848					27	–
S460MH	1.8849	460	440	530-720	17	–	40 d
S460MLH	1.8850					27	–
a For section sizes D/T < 15 (circular) and (B+H)/2T < 12,5 (square and rectangular) the minimum elongation is reduced by 2. b For thicknesses < 3 mm see 9.2.2. c For impact properties for reduced section test pieces see 6.7.2. d This value corresponds to 27J at –30 °C (see EN 1993-1-1).

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