Material S355 Steel Properties, Comparison, Equivalent Grade, EN 10025

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en 10025 s355 steel grade s355 material

EN 10025 S355 Steel

S355 steel is a European standard structural steel grade, according EN 10025-2: 2004, material S355 is divided into 4 quality grades:

  • S355JR (1.0045),
  • S355J0 (1.0553),
  • S355J2 (1.0577) and
  • S355K2 (1.0596).

The properties of structural steel S355 is better than steel S235 and S275 in yield strength and tensile strength.

Steel Grade S355 Meaning (Designation)

The following letters and numbers explains the steel grade S355 meaning.

  • “S” is short for “structural steel”
  • “355” refers to the minumum yield strength value for the flat and long steel thickness ≤ 16mm.
  • “JR” means the impact energy value is minumum 27 J at room temperature (20℃).
  • “J0” can withstand the impact energy at least 27 J at 0℃.
  • “J2” related to the minumum impact energy value is 27 J at -20℃.
  • “K2” refers to the minumum impact energy value is 40 J at -20℃.

Datasheet and Specification

Below are the tables to show the steel grade S355 datasheet including chemical composition, yield strength, tensile strength and elongation, etc.

Chemical Composition

S355 Chemical Composition % (≤)
StandardSteelGradeCSiMnPSCuNMethod of deoxidation
EN 10025-2S355S355JR0.240.551.600.0350.0350.550.012FN
S355J00.200.551.600.0300.0300.550.012FN
S355J20.200.551.600.0250.0250.55FF
S355K20.200.551.600.0250.0250.55FF

Mechanical Properties

S355 Yield Strength (≥ N/mm2); Dia. (d) mm
SteelSteel Grade (Steel Number)d≤1616< d ≤4040< d ≤6363< d ≤8080< d ≤100100< d ≤150150< d ≤200200< d ≤250
S355S355JR (1.0045)355345335325315295285275
S355J0 (1.0553)
S355J2 (1.0577)
S355K2 (1.0596)

Tensile Strength

S355 Tensile Strength (≥ N/mm2)
SteelSteel Graded<33 ≤ d ≤ 100100 < d ≤ 250
S355S355JR510-680470-630450-600
S355J0
S355J2
S355K2

Elongation

Elongation (≥%); Thickness (d) mm
SteelSteel Grade3≤d≤4040< d ≤6363< d ≤100100< d ≤ 150150< d ≤ 250
S355S355JR2221201817
S355J0
S355J2
S355K22019181817

S355 Steel Equivalent Grade

EN 10025-2, S355 steel equivalent to US ASTM AISI SAE, Germany DIN, ISO, Japanese JIS, Chinese GB, and Indian standard. (For reference)

S355 steel equivalent grade
European UnionUSAGermanyChinaJapanIndianISO
StandardGradeStandardGradeStandardGradeStandardGradeStandardGradeStandardGradeStandardGrade
EN 10025-2S355JR (1.0045)ASTM A572/A572MGrade 50GB/T 1591Q355, Q355BJIS G3135SPFC590IS 2062E350ISO 630-2S355B
S355J0 (1.0553)DIN 17100St52-3UGB/T 1591Q355CISO 630-2S355C
S355J2 (1.0577);
S355J2G4
GB/T 1591Q355DISO 630-2S355D
S355K2 (1.0596);
S355K2G4

2 COMMENTS

    • Hi, I can’t find any information about Q/BG 804-2014, do you mean Q/BQB402? Can you please send data sheet such as composition and properties?

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