S235 Steel Properties & Equivalent Material

S235 Steel Properties & Equivalent Material

S235 steel is a commonly used designation for a structural steel grade in the European Union. It is also known as St37 in Germany, and by various other names in different countries. S235 material is part of the “S” series of steel grades, which includes S235, S275, S355, etc. These grades are primarily used for structural purposes in construction and engineering. According to EN 10025 and EN 10210, S235 material is divided into the following quality grades:

EN 10025-2:

EN 10025-5:

  • S235J0W (1.8958)
  • S235J2W (1.8961)

EN 10210-1: S235JRH (1.0039)


S235 meaning: S means Structural steel, 235 indicates the minimum yield strength of the steel is 235 MPa for steel thickness less than 16mm. (For more information, please view Designation & Meaning of Steel Names)

Chemical Composition

The table below lists S235 steel chemical composition based on heat analysis.

Chemical Composition (ladle analysis), %, ≤
Standard Steel Grade (Steel number) C Si Mn P S N Cu Thickness (t) (mm) Method of deoxidation
EN 10025-2: 2019 S235JR (1.0038) 0.17 1.40 0.035 0.035 0.012 0.55 ≤40 Rimming steel not allowed
0.20 40<t ≤100
S235J0 (1.0114) 0.17 1.40 0.030 0.030 0.012 0.55 ≤100
S235J2 (1.0117) 0.17 1.40 0.025 0.025 0.55 ≤ 100 Fully killed

Upper limits applicable for the product analysis

Chemical Composition (product analysis), %, ≤
Standard Steel Grade (Steel number) C Si Mn P S N Cu Thickness (t) (mm) Method of deoxidation
EN 10025-2: 2019 S235JR (1.0038) 0.19 1.50 0.035 0.045 0.014 0.60 ≤40 Rimming steel not allowed
0.23 40<t ≤100
S235J0 (1.0114) 0.19 1.50 0.030 0.040 0.014 0.60 ≤100
S235J2 (1.0117) 0.19 1.50 0.025 0.035 0.60 ≤ 100 Fully killed


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

Physical Properties

  • Density: 7.85 g/cm3 (0.284 lb/in3)
  • Melting point: 1420-1460 °C (2590-2660 °F)
  • Thermal Expansion: 11.7 x 10-6 °C (20-100°C)
  • Electrical Conductivity: Approximately 14% IACS (International Annealed Copper Standard)

Mechanical Properties

S235 material mechanical properties according to EN 10025-2.

S235 Yield Strength (MPa, ≥)
Steel Grade t≤16 16<t≤40 40<t≤100 100<t≤150 150<t≤200 200<t≤250 250<t≤400
S235 235 225 215 195 185 175 165
S235 Tensile Strength (MPa, ≥)
Steel Grade t<3 3≤t≤100 100<t≤ 150 150<t≤250 250<t≤400
S235 360-510 360-510 350-500 340-490 330-480


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


S235 material has good weldability, and it can be readily welded using common welding techniques such as arc welding, MIG (Metal Inert Gas) welding, and TIG (Tungsten Inert Gas) welding.

Corrosion Resistance

S235 steel is not highly corrosion-resistant, so it may require protective coatings or maintenance in corrosive environments.


  • S235 material is widely used in the construction industry for various structural applications, including beams, columns, and structural components.
  • It is commonly used in the fabrication of welded structures and bridges.
  • The material is suitable for general engineering and manufacturing purposes.
  • It can be used in machinery, automotive parts, and equipment components.

S235 Steel Equivalent Material

The table below lists steel grade S235 equivalent chart including US ASTM, European EN, Australian AS/NZS, Chinese GB, Japanese JIS, Indian IS and ISO standard.

S235 Steel Equivalent Grade
European Union US German Chinese Japanese Australian Indian ISO
Standard Steel name Standard Grade Standard Steel name Standard Grade Standard Grade Standard Grade Standard Grade Standard Grade
EN 10025-2 S235 ASTM A36;
ASTM A283/A283M
Grade D
DIN 17100 St37 GB/T 700 Q235 JIS G3101;
JIS G3106
AS/NZS 3678 250 IS 2062 E250 ISO 630-2 S235B

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