Material S355 Steel Properties, Equivalent Grade, EN 10025-2

5

EN 10025 S355 Steel Grade

S355 steel is a European standard structural steel which is commonly used in Europe, the material is better than S235 and S275 structural steel in yield strength, tensile strength and other properties. According to EN 10025, S355 material is divided into the following quality grades for example:

S355 Steel Group
Standard Steel/Quality Grade Material Number
DIN EN 10025-2 S355JR 1.0045
S355J0 1.0553
S355J2 1.0577
S355K2 1.0596
DIN EN 10025-3 S355N 1.0545
S355NL 1.0546
DIN EN 10025-4 S355M 1.8823
S355ML 1.8834
DIN EN 10025-5 S355J0W 1.8959
S355J2W 1.8965
S355K2W 1.8967
S355J4W 1.8787
S355J5W 1.8991
S355J0WP 1.8945
S355J2WP 1.8946
EN 10149-2 S355MC 1.0976
EN 10149-3 S355NC 1.0977
EN 10210-1 S355J0H 1.0547
S355J2H 1.0576
S355K2H 1.0512
S355NH 1.0539
S355NLH 1.0549
EN 10210-3 S355MH 1.8845
S355MLH 1.8846
EN 10248-1 S355GP 1.0083

Material S355 Meaning (Designation)

The following letters and numbers explains steel grade S355 meaning:

  • “S” is the abbreviation of “Structural steel”;
  • “355” indicates the minimum yield strength value for the flat and long steel thickness ≤ 16mm;
  • “JR” means the impact energy value is minimum 27 J at room temperature (20°C);
  • “J0” indicates the steel can withstand the impact energy at least 27 J at 0°C;
  • “J2” denotes the minimum impact energy value is 27 J at -20°C;
  • “K2” denotes the minimum impact energy value is 40 J at -20°C.
  • J4: minimum 27J at -40 °C
  • J5: minimum 27J at -50 °C
  • M: Thermomechanically rolled
  • N: Normalized or normalized rolled
  • L: Low temperature
  • W: Weather resistant
  • C: Special cold forming
  • H: Hollow section
  • G: Other characteristics, if required, with 1 or 2 digits.
  • P: Sheet piling
  • P (EN 10025-5): For the grade with a greater phosphorus content (only in the case of S355 grade)
  • D: Hot dip coating
  • +Z: Hot dip zinc (galvanized) coating
  • More designation & meaning of European steel names

S355 Steel Properties and Specification

The tables below show the material grade S355 steel properties and specification according to EN 10025-2 standard, including chemical composition, yield strength, tensile strength and elongation, etc.

Chemical Composition

The datasheet below shows material S355 chemical composition based on heat analysis.

S355 Chemical Composition (%, ≤)
Standard Steel Grade C Si Mn P S Cu N Method of deoxidation
EN 10025-2 S355 S355JR 0.24 0.55 1.60 0.035 0.035 0.55 0.012 Rimmed steel is not allowed
S355J0 (S355JO) 0.20 0.55 1.60 0.030 0.030 0.55 0.012
S355J2 0.20 0.55 1.60 0.025 0.025 0.55 Fully killed
S355K2 0.20 0.55 1.60 0.025 0.025 0.55

Remarks:

  • For S355J0, S355J2 and S355K2: C ≤ 0.22% for thickness > 30 mm.
  • C by agreement for profiles with a nominal thickness > 100 mm.
  • For long products, the P and S content can be 0.005% higher.

Mechanical Properties

The datasheet below gives EN 10025 S355 steel mechanical properties such as yield strength, tensile strength and elongation.

Yield Strength

S355 Yield Strength (MPa, ≥); Thickness (t), mm
Steel Grade (Steel Number) t≤16 16< t ≤40 40< t ≤63 63< t ≤80 80< t ≤100 100< t ≤150 150< d ≤200 200< t ≤250 250< t ≤400
S355 S355JR (1.0045) 355 345 335 325 315 295 285 275 265
S355J0 (1.0553)
S355J2 (1.0577)
S355K2 (1.0596)

Tensile Strength

S355 Tensile Strength (MPa, ≥)
Steel Grade t<3 3 ≤ t ≤ 100 100 < t ≤ 400
S355 S355JR 510-680 470-630 450-600
S355J0 (S355JO)
S355J2
S355K2

Elongation at Break

Elongation (%, ≥); Thickness (t) mm; L0 = 80 mm
Material ≤1 1< t ≤1.5 1.5< t ≤ 2 2<t ≤ 2.5 2.5< t < 3 Orientation of test pieces
S355 14 15 16 17 18 Parallel
12 13 14 15 16 Transverse
Elongation (%, ≥); Thickness (t) mm; L0 = 5.65 √So
Material t≤40 40< t ≤63 63 < t ≤100 100 < t ≤ 150 150 < t ≤ 400 Orientation of test pieces
S355 22 21 20 18 17 Parallel
20 19 18 18 17 Transverse

Note:

  • t = Thickness (mm)
  • 1 MPa = 1 N/mm2

S355 Steel Equivalent Grade

EN 10025-2 S355 steel equivalent grades are listed in the table below, including US ASTM AISI SAE, German DIN, ISO, Japanese JIS, Chinese GB, Indian IS, Australian/New Zealand AS/NZS and Canadian Standard CSA. (For reference)

S355 Steel Equivalent Grades
European Union US Germany China Japan Indian ISO Australian/New Zealand Canada
Standard Grade (Steel number) Standard Grade Standard Grade Standard Grade Standard Grade Standard Grade Standard Grade Standard Grade Standard Grade: SI (Imperial)
EN 10025-2 S355JR (1.0045) ASTM A572/A572M A572 Grade 50 GB/T 1591 Q355, Q355B; Q345B (Q345) JIS G3135 SPFC590 IS 2062 E350 ISO 630-2 S355B AS/NZS 3679.1 350 CSA G40.20/G40.21 350W (50W);
350WT (50WT)
S355J0 (1.0553) DIN 17100: 1980 St52-3U GB/T 1591 Q355C; Q345C IS2062 E 350 ISO630-2 S355C AS/ NZS 3679.1 350L0 CSA G40.20/ G40.21 350W (50W);
350WT (50WT)
S355J2 (1.0577);
S355J2G3
St52 GB/T 1591 Q355D; Q345D IS 2062 E350 ISO 630-2 S355D AS/NZS 3679.1 350L20  CSA G40.20/G40.21 350W (50W);
350WT (50WT)
S355K2 (1.0596);
S355K2G4
GB/T 1591 Q345E; Q355D
5 Comments
  1. JAMES WONG says

    Can you tell me the difference between S355 and E355 grade.

  2. Salah says

    Sir,

    Q355B grade angle steel plate is equivalent for S355G3+N steel plate and can be used for wall module restoration of fixed oil platform.

  3. Anil Kumar says

    Can you tell me S355J2+N is equivalent to S355G7?

  4. rendi says

    hi have different grade plate for S355KT-40 with S355K2 ?

  5. Balamurali says

    Dear Export,
    what is the difference between S355G1, G2 G3 & G11

Leave A Reply

Your email address will not be published.

Advertising is our only source of income, and we try our best not to interfere with your experience. Accept Read More