S355J2W Plate Supplier

EN 10025-5 S355J2W (1.8965) Weathering Steel Plates & Sheets

Dinesh Tube India supplies S355J2W plates and sheets from Mumbai to bridge and structural fabricators, railway wagon and container builders, chimney and tower makers, and architectural steel contractors. S355J2W (material number 1.8965) is the most widely used European weathering steel grade under EN 10025-5. It is often called Corten B. We supply it in +N (normalised / normalised-rolled) or +AR (as-rolled) condition, cut to size or in mill plates, with EN 10204 3.1 certificates.

S355J2W has a minimum yield strength of 355 MPa (up to 16 mm), guaranteed impact toughness of 27 J at −20 °C, and copper, chromium and nickel additions that form a protective patina outdoors. For all Corten grades, see our Corten steel plates page.

Table of Contents

What Is S355J2W?
Equivalent & Old Grade Names
Specification
Chemical Composition
Mechanical Properties
S355J0W vs J2W vs K2W
Applications
FAQs

What Is S355J2W?

The grade name tells you what it is:

S355: structural steel, minimum yield 355 MPa (thickness up to 16 mm)
J2: Charpy impact energy of at least 27 J at −20 °C
W: weathering steel with improved atmospheric corrosion resistance

Unlike plain S355J2, S355J2W contains 0.25–0.55% copper and 0.40–0.80% chromium (plus nickel), so in the open air it develops a dense rust layer that slows further corrosion. Bridges, towers and facades can then be left unpainted. It is not stainless steel and is not intended for marine immersion, chemical service or surfaces that stay wet.

EN 10025-5 S355J2W weathering steel plates

S355J2W Equivalent & Old Grade Names

Standard	Grade	Note
EN 10025-5 (current)	S355J2W / 1.8965	Current designation
EN 10155 (withdrawn)	S355J2G1W, S355J2G2W	Old names, now ordered as S355J2W
DIN / SEW 087 (old German)	WTSt 52-3	Historic
BS 4360 (withdrawn)	WR50C	Historic
NF A35-502 (old French)	E36WB4	Historic
ASTM	A588 Gr A	Closest US equivalent (Corten B)
JIS G3114	SMA 490	Closest Japanese equivalent

Equivalents are close, not identical. Order to the standard on your drawing.

S355J2W Chemical Composition (Ladle Analysis, %)

C	Si	Mn	P	S	Cr	Cu	Ni	Mo	Zr
0.16 max	0.50 max	0.50–1.50	0.030 max	0.030 max	0.40–0.80	0.25–0.55	0.65 max	0.30 max	0.15 max

Product analysis allows slightly wider limits. The maximum carbon equivalent (CEV) depends on thickness and is shown on the mill certificate; check the current EN 10025-5 edition for governing values.

S355J2W Mechanical Properties

Thickness (mm)	Min Yield ReH (MPa)	Tensile Rm (MPa)
Up to 16	355	470 – 630 (510 – 680 below 3 mm)
Over 16 to 40	345	470 – 630
Over 40 to 63	335	470 – 630
Over 63 to 80	325	470 – 630
Over 80 to 100	315	470 – 630
Over 100 to 150	295	450 – 600

Impact: 27 J minimum at −20 °C (longitudinal Charpy V). Elongation: about 22% minimum for 3–40 mm (Lo = 5.65√So), falling slightly for thicker plates.

S355J0W vs S355J2W vs S355K2W vs S355J2

Grade	Number	Impact Test	Weathering?
S355J0W	1.8959	27 J at 0 °C	Yes
S355J2W	1.8965	27 J at −20 °C	Yes
S355K2W (old S355K2G1W)	1.8967	40 J at −20 °C	Yes
S355J0WP / J2WP	1.8945 / 1.8946	27 J at 0 / −20 °C	Yes, high-phosphorus (Corten A type)
S355J2 (EN 10025-2)	1.0577	27 J at −20 °C	No, plain structural steel

S355J2 and S355J2W are often confused. Only the "W" grade weathers; S355J2 must be painted or galvanised outdoors.

Need S355J2W plates? Send thickness, plate size or cut sizes, quantity, delivery condition (+N or +AR) and delivery location to kamlesh@dineshtube-india.com or call +91 83559 10913. You can also send an enquiry.

S355J2W Plate Applications

Road, rail and pedestrian bridges
Building frames, facades and cladding
Transmission and telecom towers
Railway wagons and freight containers
Chimneys, stacks and flue ducts
Noise barriers, retaining walls and landscape steel
Sculptures and Corten signage

Bridge, building and rail uses of S355J2W weathering steel

For S355J2W hollow sections, see ASTM A847 Corten tubes. For the US grade, see ASTM A242 Type 1 plates.

S355J2W Plates: FAQs

What is S355J2W steel?

S355J2W (1.8965) is a weathering structural steel to EN 10025-5. It has a minimum yield strength of 355 MPa up to 16 mm thickness, Charpy impact energy of at least 27 J at −20 °C, and copper, chromium and nickel additions that give improved resistance to atmospheric corrosion.

What is the difference between S355J2W and S355J2?

S355J2 (1.0577, EN 10025-2) is a plain structural steel with the same strength and impact rating but no weathering alloys, so it must be painted or galvanised outdoors. S355J2W adds copper, chromium and nickel and forms a protective patina, so it can often be left unpainted.

Is S355J2W the same as Corten?

S355J2W is the European grade closest to Corten B (ASTM A588 Gr A). Corten is a trade name; S355J2W is an EN 10025-5 grade that any approved mill can produce. For the high-phosphorus Corten A type, the EN grade is S355J0WP or S355J2WP.

What is S355J2G1W?

S355J2G1W (and S355J2G2W) are the old names from EN 10155, the standard that EN 10025-5 replaced. Both are now supplied as S355J2W. Similarly, S355K2G1W is now S355K2W.

What is the difference between S355J2W+N and S355J2W+AR?

+N means the plate was normalised or normalised-rolled, which gives more uniform properties and is often specified for bridges and thicker plates. +AR means as-rolled, with no further heat treatment. Both must meet the same EN 10025-5 strength and impact values for the ordered thickness.

What is the yield strength of S355J2W?

Minimum yield strength is 355 MPa up to 16 mm, 345 MPa over 16–40 mm, 335 MPa over 40–63 mm, 325 MPa over 63–80 mm, 315 MPa over 80–100 mm and 295 MPa over 100–150 mm. Tensile strength is 470–630 MPa for 3–100 mm.

Can S355J2W be welded?

Yes. S355J2W welds with normal structural practice. Where the weld must weather to the same colour and resistance as the plate, welders use consumables with matching weathering chemistry, typically containing nickel and copper. Follow the welding procedure and preheat advice for the plate thickness.

Which certificates come with S355J2W plates?

Every supply comes with an EN 10204 3.1 mill test certificate showing heat number, chemical analysis, tensile and Charpy impact results to EN 10025-5. EN 10204 3.2 certificates and third-party inspection can be arranged on request.

Export Destinations for S355J2W Plates

We supply S355J2W plates across India and export to the Middle East (UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain), Africa (Egypt, Nigeria, Kenya, South Africa), South and South-East Asia (Sri Lanka, Bangladesh, Nepal, Singapore, Malaysia, Vietnam) and Europe on request.