Steel

Structural plate, sections and bars to EN, ASTM, JIS, GB, CSA, AS/NZS, IS and GOST.

Standard fromAnywhere

CEN

Mild structural steel

How the S235 equivalents compare

Minimum yield 235–300 MPa. Ordinary carbon steel, easy to weld, cut and form — and its counterparts in other countries.

Grade	Standard	Yield strength at 10 mm	Tensile strength	Evidence
S235 Mild structural steel: 235 MPa minimum yield up to 16 mm, 360–510 MPa tensile.	EN 10025-2:2019	≥ 235 MPa4	360–510 MPa4	Confirmed 4 Corroborated 1 Single source 7
S275 Structural steel with 275 MPa minimum yield up to 16 mm, 410–560 MPa tensile.	EN 10025-2:2019	≥ 275 MPa5	410–560 MPa5	Confirmed 5 Corroborated 3 Single source 4 Disagreements explained 2

Higher-strength structural steel — the 355 MPa class

How the S355 equivalents compare

S355 and every grade the world lists against it, compared on what each standard guarantees. Some “equivalents” fall short; their yield shows it.

Grade	Standard	Yield strength at 10 mm	Tensile strength	Evidence
S355 Europe's workhorse structural steel: 355 MPa minimum yield up to 16 mm, 470–630 MPa tensile from 3 to 100 mm.	EN 10025-2:2019	≥ 355 MPa7	470–630 MPa9	Confirmed 26 Corroborated 10 Single source 7 Disagreements explained 8

High-strength structural steel (420–460 MPa)

Fine-grain steels: normalized (N) and thermomechanically rolled (M). M grades reach the same strength with less carbon, so they weld with less preheat.

Grade	Standard	Yield strength at 10 mm	Tensile strength	Evidence
S420M Thermomechanically rolled fine-grain steel: 420 MPa yield up to 16 mm, 520–680 MPa tensile, low carbon for welding.	EN 10025-4:2019	≥ 420 MPa3	520–680 MPa3	Confirmed 4 Corroborated 5 Single source 7
S460M High-strength sections and plate: 460 MPa yield up to 16 mm, 540–720 MPa tensile, 17 % elongation.	EN 10025-4:2019	≥ 460 MPa3	540–720 MPa3	Confirmed 6 Corroborated 6 Single source 4
S420N Normalized fine-grain steel: 420 MPa yield up to 16 mm, 520–680 MPa tensile up to 100 mm.	EN 10025-3:2019	≥ 420 MPa1	520–680 MPa1	Single source 16
S460N Normalized fine-grain steel: 460 MPa yield up to 16 mm, 540–720 MPa tensile up to 100 mm.	EN 10025-3:2019	≥ 460 MPa1	540–720 MPa1	Single source 14

Hollow sections (SHS, RHS, CHS)

How the S355J2H equivalents compare

Square, rectangular and circular tubes for columns, trusses and frames. Note the different design fu.

Grade	Standard	Yield strength at 10 mm	Tensile strength	Evidence
S355J2H Cold-formed welded hollow sections (SHS, RHS, CHS): 355 MPa yield, 470–630 MPa tensile, 27 J at −20 °C.	EN 10219-1	≥ 355 MPa2	470–630 MPa3	Confirmed 1 Corroborated 4 Single source 2

Thin-walled steel — coated sheet for cold-formed sections

How the S350GD equivalents compare

Galvanized and metallic-coated sheet, usually 0.4–3 mm, roll-formed into purlins, rails, studs, decking and cladding. Designed to EN 1993-1-3, AISI S100 or AS/NZS 4600. The full-hard grades (S550GD, G550, SS Grade 80) are strong but have almost no elongation.

Grade	Standard	Yield strength	Tensile strength	Evidence
S220GD Coated structural sheet: 220 MPa minimum yield, 300 MPa minimum tensile, 20 % elongation (A80).	EN 10346:2015	≥ 220 MPa2	≥ 300 MPa2	Corroborated 3
S250GD Coated structural sheet: 250 MPa minimum yield, 330 MPa minimum tensile, 19 % elongation (A80).	EN 10346:2015	≥ 250 MPa2	≥ 330 MPa2	Corroborated 3
S280GD Coated structural sheet: 280 MPa minimum yield, 360 MPa minimum tensile, 18 % elongation (A80).	EN 10346:2015	≥ 280 MPa2	≥ 360 MPa2	Corroborated 3
S320GD Coated structural sheet: 320 MPa minimum yield, 390 MPa minimum tensile, 17 % elongation (A80).	EN 10346:2015	≥ 320 MPa2	≥ 390 MPa2	Corroborated 3
S350GD The most used steel for cold-formed purlins, light-gauge framing and decking: 350 MPa yield, 420 MPa tensile.	EN 10346:2015	≥ 350 MPa2	≥ 420 MPa2	Corroborated 3 Single source 7
S390GD Coated structural sheet: 390 MPa minimum yield, 460 MPa minimum tensile, 16 % elongation (A80).	EN 10346:2015	≥ 390 MPa1	≥ 460 MPa1	Single source 3
S420GD Coated structural sheet: 420 MPa minimum yield, 480 MPa minimum tensile, 15 % elongation (A80).	EN 10346:2015	≥ 420 MPa1	≥ 480 MPa1	Single source 3
S550GD Full-hard coated sheet: 550 MPa yield, 560 MPa tensile, no elongation requirement.	EN 10346:2015	≥ 550 MPa1	≥ 560 MPa1	Single source 2

Planned groups

Very high-strength plate (S690Q, A514)
Rebar: HRB400/500 (GB 1499.2), 500N (AS/NZS 4671), SD390 (JIS)
Stainless and weathering steel