DIN 17100

PropertyDescription
StandardDIN 17100
Replaced ByEN 10025 (European Standard)
Product TypeHot-rolled structural steel sections, plates, and bars
Common GradesSt33, St37-2, St44-2, St52-3
Material TypeNon-alloy structural steels
Delivery ConditionAs rolled (AR), Normalized (N)
ApplicationsConstruction, bridges, shipbuilding, steel structures, machine building
Yield StrengthVaries by grade – e.g., St37-2: 235 MPa, St52-3: 355 MPa
Tensile StrengthRanges from approx. 340 to 630 MPa
WeldabilityGood; suitable for common welding processes
Impact ResistanceMay vary depending on grade and testing temperature
Replacement GradesEN 10025-2 S235JR (St37-2), S355JR (St52-3)
Industries ServedInfrastructure, construction, heavy machinery, and fabrication industries
Category:

Description

DIN 17100 Carbon Steel Plate

DIN 17100 is a German standard that specified the technical delivery conditions for general structural steel. It has formerly been used extensively, particularly in the European steel industry, for non-alloy structural steels used in building and mechanical applications. Note that DIN 17100 has been replaced by EN 10025, but it is still referenced in some markets and older projects.

Key Features

  • Applicable Grades: St33, St37-2, St44-2, St52-3, etc.
  • Versatile Usage: Ideal for bridges, buildings, machines, and vehicles.
  • Excellent Weldability: Especially suitable for welding due to its chemical composition.
  • Good Formability: Easily machinable and formable for various fabrication processes.
  • Standardized Mechanical Properties: Ensures predictable performance in structural applications.

DIN 17100 St37-2, St44-2, St52-3 Chemical Composition

Element Max %
Carbon (C) 0.17
Manganese (Mn) 1.40
Phosphorus (P) 0.045
Sulfur (S) 0.045
Nitrogen (N) 0.009 (max, if applicable)

DIN 17100 St37-2, St44-2, St52-3 Mechanical Properties

Property Value
Tensile Strength 360 – 510 MPa
Yield Strength ≥ 235 MPa (for thickness ≤ 16 mm)
Elongation ≥ 25% (for thickness ≤ 16 mm)
Impact Toughness Good at room temperature (Notch impact value available upon request)

Equivalent Standards

DIN 17100 Grade EN 10025 Equivalent ASTM Equivalent
St37-2 S235JR A36
St44-2 S275JR A570 Gr 40
St52-3 S355JR A572 Gr 50

Application

  • Building construction (beams, columns, frameworks)
  • Bridges and infrastructure
  • Machinery and equipment
  • Shipbuilding and vehicle manufacturing
  • General structural and engineering purposes

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