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EN 10219 S355J2H Square & Rectangular Hollow Section Specification

Keywords: EN 10219 S355J2H square & rectangular tube sizes, s355 square hollow section, cold formed square tube

EN 10219 S355J2H Square and Rectangular hollow sections (SHS/RHS) are cold-formed welded hollow sections manufactured in accordance with the European standard EN 10219, featuring the S355J2H steel grade. With a yield strength of 355 MPa and impact toughness at -20°C that meets relevant standard requirements, they are suitable for engineering applications demanding high load-bearing capacity and low-temperature toughness.

This page provides complete specifications, sizes, weight chart, chemical composition, and mechanical properties for both SHS (Square Hollow Section) and RHS (Rectangular Hollow Section). ▶ For a detailed grade comparison (S355JRH vs S355J2H vs S355J0H vs S355K2H), see our [EN 10219 S355JRH Grade Selection Guide].

EN 10219 S355J2H Square & Rectangular Cold Formed Hollow Section Specification

Item	Specification
Standard	BS EN 10219 – Cold Formed Welded Structural Hollow Sections of Non-alloy and Fine Grain Steels
Grade	S355J2H
Hollow Section Sizes	Square Hollow Section (SHS) Sizes: 20×20 mm – 400×400 mm Rectangular Hollow Section (SHS) Sizes: 50×30 mm – 400×200 mm
Wall Thickness	0.5 mm – 25 mm (depending on section type)
Length	6000 – 14000 mm
Type	Welded / ERW
Dimensional Tolerances	Thickness: ±10% (all sizes); Other tolerances according to EN 10219-2

Packing & Surface Protection

● Packing: In bundles, Anticorrosion heat preservation, Varnish coating, Ends can be bevelled or square cut, End Capped Certification & supplementary test, Finishing & Identity Mark.

● Surface Protection: Black Square Tube (Self Coloured uncoated), Varnish/Oil Coating, Pre-Galvanized, Hot Dip Galvanized.

EN 10219 Standard:

EN 10219 is specifically for cold-formed welded hollow profiles. All S355J2H square, rectangular, and round hollow profiles manufactured according to this standard are welded pipes (welding processes include HFI/ERW, SAW, etc.).

If your project requires seamless pipes or hot-rolled hollow profiles, refer to EN 10210 (hot-rolled hollow profiles). It is worth noting that the S355J2H grade also exists in EN 10210, but the manufacturing process is completely different.

Chemical Composition of S355J2H (max, %)

Steel Grade	C	Si	Mn	P	S	Nb	CEV
S355J2H	0.22	0.55	1.60	0.030	0.030	–	0.45

Mechanical Properties of S355J2H

Grade	Min. Yield Strength ReH (MPa)		Tensile Strength Rm (MPa)		Elongation A min (%)		Min. Impact Energy KV (J)
Grade	Thk ≤ 16 mm	Thk > 16 ≤ 40 mm	Thk < 3 mm	Thk ≥ 3 mm	Thk < 1 mm	Thk ≥ 3 mm	-20°C	0°C	+20°C
S355J2H	355	345	510–680	470–630	14	20	27	–	–

EN 10219 S355J2H - Cold Formed Square Hollow Section Sizes

Size (mm)	kg/m	Size (mm)	kg/m
20×20×2.0	1.12	20×20×2.5	1.35
25×25×1.5	1.06	25×25×2.0	1.43
25×25×2.5	1.74	25×25×3.0	2.04
30×30×2.0	1.68	30×30×2.5	2.14
30×30×3.0	2.51	40×40×1.5	1.81
40×40×2.0	2.31	40×40×2.5	2.92
40×40×3.0	3.45	40×40×4.0	4.46
40×40×5.0	5.40	50×50×1.5	2.28
50×50×2.0	2.93	50×50×2.5	3.71
50×50×3.0	4.39	50×50×4.0	5.72
50×50×5.0	6.97	60×60×3.0	5.34
60×60×4.0	6.97	60×60×5.0	8.54
60×60×6.0	9.45	70×70×3.0	6.28
70×70×3.6	7.46	70×70×5.0	10.11
70×70×6.3	12.50	70×70×8	15.30
75×75×3.0	7.07	80×80×3.0	7.22
80×80×3.6	8.59	80×80×5.0	11.70
80×80×6.0	13.90	90×90×3.0	8.01
90×90×3.6	9.72	90×90×5.0	13.30
90×90×6.0	15.76	90×90×8.0	20.40
100×100×3.0	8.96	100×100×4.0	12.00
100×100×5.0	14.80	100×100×6.0	16.19
100×100×8.0	22.90	100×100×10	27.90
120×120×5	18.00	120×120×6.0	21.30
120×120×6.3	22.30	120×120×8.0	27.90
120×120×10	34.20	120×120×12	35.80
120×120×12.5	41.60	140×140×5.0	21.10
140×140×6.3	26.30	140×140×8	32.90
140×140×10	40.40	140×140×12.5	49.50
150×150×5.0	22.70	150×150×6.3	28.30
150×150×8.0	35.40	150×150×10	43.60
150×150×12.5	53.40	150×150×16	66.40
180×180×5	27.40	180×180×6.3	34.20
180×180×8	43.00	180×180×10	53.00
180×180×12.5	65.20	180×180×16	81.40
200×200×5	30.50	200×200×6	35.80
200×200×6.3	38.20	200×200×8	48.00
200×200×10	59.30	200×200×12.5	73.00
200×200×16	91.50	250×250×6.3	48.10
250×250×8	60.50	250×250×10	75.00
250×250×12.5	92.60	250×250×16	117.00
300×300×6.3	57.90	300×300×8	71.60
300×300×10	88.40	300×300×12.5	108.00
350×350×8	85.70	350×350×10	106.00
350×350×12.5	132.00	350×350×16	167.00
400×400×8.0	97.90	400×400×10	122.00
400×400×12	141.00	400×400×12.5	151.00
400×400×16	192.00

EN 10219 S355J2H – Rectangular Hollow Section (RHS) Sizes

Size (mm)	kg/m	Size (mm)	kg/m
50×30×2.5	2.92	50×30×3.0	3.45
50×30×4.0	4.46	60×40×3.0	4.39
80×40×3.0	5.34	80×40×4.0	6.97
100×50×3.0	6.75	100×50×4.0	8.70
100×50×5.0	10.60	100×60×5.0	11.70
120×60×4.0	10.40	120×60×5.0	12.80
120×60×6.0	15.00	150×100×6.0	22.30
160×80×5.0	17.70	160×80×6.0	20.80
160×80×8.0	26.40	200×100×5.0	22.30
200×100×6.0	26.40	200×100×8.0	33.90
200×100×10.0	41.90	250×150×8.0	48.00
300×200×10.0	75.00	400×200×10.0	88.40
400×200×12.5	108.00

EN 10219 S355J2H – Circular Hollow Section (CHS) Sizes

Outer Diameter (mm)	Wall Thickness (mm)	kg/m
42.4	2.0	1.99
42.4	2.5	2.46
42.4	3.0	2.91
48.3	2.0	2.28
48.3	2.5	2.82
48.3	3.0	3.35
48.3	4.0	4.37
60.3	2.0	2.88
60.3	2.5	3.56
60.3	3.0	4.24
60.3	4.0	5.55
60.3	5.0	6.82
76.1	2.0	3.65
76.1	2.5	4.54
76.1	3.0	5.41
76.1	4.0	7.11
76.1	5.0	8.77
76.1	6.0	10.40
88.9	3.0	6.36
88.9	4.0	8.38
88.9	5.0	10.40
88.9	6.0	12.30
114.3	4.0	10.90
114.3	5.0	13.50
114.3	6.0	16.00
139.7	5.0	16.60
139.7	6.0	19.80
168.3	5.0	20.10
168.3	6.0	24.00
193.7	6.0	27.80
219.1	6.0	31.50
244.5	6.0	35.30
273.0	6.0	39.50
323.9	6.0	47.00

Core Advantages of S355J2H Square & Rectangular Tubes:

1. Excellent Low-Temperature Toughness
S355J2H guarantees an impact energy ≥ 27 J at -20°C, meeting the resistance to brittle fracture requirements for structural components in cold regions. This characteristic makes it an ideal choice for projects exported to cold regions such as Northern Europe, Canada, and Russia.

2. High Strength and Good Overall Performance
Yield Strength: 355 MPa (wall thickness ≤ 16mm), capable of withstanding medium to high loads.
Tensile Strength: 470 - 630 MPa, ensuring sufficient safety margin.
Elongation: ≥ 20%, with good plastic deformation capacity.

3. Excellent Weldability
Carbon equivalent ≤ 0.45%, suitable for the following welding processes:

Manual arc welding
Gas shielded welding
Submerged arc welding
Generally, no preheating or complex post-weld heat treatment is required.

4. High Dimensional Accuracy

Cold bending technology ensures a regular square cross-section shape, sharp edges, and uniform wall thickness, meeting the stringent tolerance requirements of EN 10219-2.

Applications

S355J2H square hollow profiles are widely used in the following fields due to their high strength and low-temperature toughness:

● Building Structures: Bridges, high-rise building support frames, large-span trusses
● Machinery Manufacturing: Heavy equipment for construction machinery, load-bearing structural components, crane booms
● Energy and Chemical Industry: Wind turbine towers, solar photovoltaic supports, pipelines

● Shipbuilding and Marine Engineering: Ship hull structures, offshore platform components, dock supports

S355J2H vs S355JRH: Key Difference

The core difference between S355J2H and S355JRH lies in their low-temperature impact toughness: S355JRH only guarantees an impact energy ≥27J at room temperature (+20°C), suitable for normal temperature environments and indoor structures; while S355J2H guarantees an impact energy ≥27J even at -20°C, exhibiting better resistance to brittle fracture, suitable for cold regions, winter construction, and export projects to Northern Europe.

Both have the same strength (yield strength of 355 MPa for wall thickness ≤16mm) and similar chemical composition (but S355J2H has stricter control over phosphorus and sulfur content), with a price difference of approximately 5-10%.

Procurement and Application Recommendations:

① Confirm Low-Temperature Toughness Requirements
If the project is located in a cold region or involves winter construction, the -20°C impact guarantee of S355J2H is a key advantage. For even lower temperatures (e.g., -50°C), consider the S355MLH grade.

② Verify Material Certificates
When purchasing, request the supplier to provide an EN 10204 Type 3.1 certificate to verify the chemical composition and mechanical property data.

③ On-Site Inspection Points
After delivery, randomly sample and measure the side length and wall thickness to check if they are within standard tolerances.

④ Corrosion Protection

S355J2H is carbon steel and is not inherently corrosion-resistant. When used outdoors or in humid environments, hot-dip galvanizing or coating protection is required.

FAQs

Q1: What is the minimum order quantity (MOQ) for S355J2H square & rectangular hollow sections?
A: MOQ depends on size and quantity. Please contact us with your specific requirements for a detailed quote.

Q2: What is the delivery time?
A: Standard delivery time is 15–30 days after order confirmation, depending on quantity and specifications.

Q3: Can you provide customized lengths?
A: Yes, we can cut to your required lengths. Please specify when inquiring.

Q4: What surface treatments are available?
A: Black, varnish/oil coating, pre-galvanized, hot-dip galvanized, and painting.

Q5: Can you provide EN 10204 3.1 certificate?
A: Yes, we provide EN 10204 3.1 certificate for each batch.

Q7: How are the tubes packed for shipping?
A: In bundles with steel strips, end caps, and anti-corrosion protection. Customized packing available.

Get A Quote for S355J2H Square & Rectangular Hollow Section:

To purchase EN 10219 S355J2H square hollow profiles, please provide the following information for a quick quote:

● Specifications (side length × wall thickness)
● Length requirement
● Quantity
● Delivery location

● EN 10204 Type 3.1 certificate required

▶ View our full range of square tubes (SHS): [Square Tube (SHS) Product Page]. For a quote on S355J2H square hollow profiles, please contact: sales@hu-steel.com

Related Resources

● EN 10219 S355JRH Grade Selection Guide

● S235JRH and S355J2H Structural Steel

● ASTM A500 Structural Tubing

● MS and GI Pipe Difference

● EN 10219 vs EN 10210: Comprehensive Comparison

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