Engineering materials, sourced
Every value, with the sources that state it.
Yield, tensile, composition and equivalents across EN, ASTM, JIS, GB, CSA, AS/NZS, IS and GOST — with how many independent sources agree, and what to do when they don't.
- values
- 360 values
- public sources
- 96 public sources
- standards
- 34 standards
- grades
- 55 grades
S355 · EN 10025-2 · t = 20 mm
- Yield strength ReHConfirmed
- ≥ 345 MPa
- Sider Ticino · Roymech · Parker Steel · Ovako · Material Welding · Baouch · Gnee Steel
- Tensile strength RmConfirmed
- 470–630 MPa
- Sider Ticino · Roymech · Parker Steel · Ovako · Material Welding · Baouch · Gnee Steel · SteelConstruction.info (BCSA / SCI) · SSAB
- Elongation after fracture AConfirmed
- ≥ 22 %
- Sider Ticino · Ovako · Gnee Steel · Hindustan Steel
When sources disagree
S355's ultimate strength for design: 490, 510 or 470 MPa?
Eurocode 3 gives fu = 490 MPa for S355 up to 40 mm. A widely shared design table says 510 — the value for hollow sections, copied into the wrong row. The UK National Annex lets you use the mill's guaranteed 470 instead. Matipedia shows all three, who says which, and why.
See the design values- 490EN 1993-1-1 Table 3.1, t ≤ 40 mmas reproduced by Eurocode Applied, Blueprints (open-source structural library)
- 510Civils.ai510 MPa is Table 3.1's value for S355H hollow sections to EN 10210-1, not for EN 10025-2 (Eurocode Applied lists both). The same page also gives E = 200 GPa in its grade table, contradicting its own 210 000 MPa above it.
- 470EN 10025-2 minimum, 3–100 mmThe value the mill guarantees; the UK National Annex allows it as fu.
Cross-reference
S355 around the world — and which “equivalents” aren't
DIN 17100St 52-3Close match
GOST 27772-2015С355Close match
GB/T 1591-2018Q355Close match
JIS G 3106SM520Close match
ASTM A992/A992MA992Approximate ASTM A572/A572MA572 Grade 50Approximate
CSA G40.21350WApproximate
AS/NZS 3678:2016Grade 350Approximate
IS 2062:2011E350Approximate JIS G 3106SM490Not equivalent GOST 19281-201409G2S (09Г2С)Not equivalentPopular grades
EN 10025-2:2019S355
Europe's workhorse structural steel: 355 MPa minimum yield up to 16 mm, 470–630 MPa tensile from 3 to 100 mm.
- ReH
- ≥ 355 MPa
- Rm
- 470–630 MPa
- Confirmed
- 26
- Corroborated
- 10
- Single source
- 7
- Disagreements explained
- 8
EN 10025-2:2019S275
Structural steel with 275 MPa minimum yield up to 16 mm, 410–560 MPa tensile.
- ReH
- ≥ 275 MPa
- Rm
- 410–560 MPa
- Confirmed
- 5
- Corroborated
- 3
- Single source
- 4
- Disagreements explained
- 2
ASTM A572/A572MA572 Grade 50
The common US high-strength structural plate: 50 ksi (345 MPa) yield, 65 ksi (450 MPa) tensile.
- ReH
- ≥ 345 MPa
- Rm
- ≥ 450 MPa
- Confirmed
- 3
- Corroborated
- 4
- Single source
- 2
- Disagreements explained
- 4
GB/T 1591-2018Q355
China's S355 counterpart, which replaced Q345 in GB/T 1591-2018. Q355B/C/D test 34 J at +20/0/−20 °C.
- ReH
- ≥ 355 MPa
- Rm
- 470–630 MPa
- From the standard
- 1
- Confirmed
- 2
- Corroborated
- 1
- Disagreements explained
- 2
EN 1992-1-1:2004C30/37
The most common structural concrete class: 30 MPa cylinder, 37 MPa cube characteristic strength.
- fck
- 30 MPa
- E
- 33 000 MPa
- Corroborated
- 1
- Single source
- 4
- Disagreements explained
- 1
EN 14080:2013GL24h
Homogeneous glued laminated timber, the default glulam class in Europe.
- fm,k
- 24 MPa
- E
- 11 500 MPa
- Unverified
- 7
ASTM B209/B209M6061-T6
Heat-treated structural aluminium alloy (EN AW-6061 T6). Minimums are well below the “typical” values often quoted.
- ReH
- ≥ 240 MPa
- Rm
- ≥ 290 MPa
- Corroborated
- 2
- Single source
- 2
JIS G 3106SM520
JIS grade whose guaranteed yield actually matches S355: 365 MPa up to 16 mm.
- ReH
- ≥ 365 MPa
- Rm
- 520–640 MPa
- Corroborated
- 1
- Single source
- 2