S235J0 and S235J2 are common European standard (EN 10025-2) non-alloy structural steels, sharing the same minimum yield strength (235 MPa) and general properties, but differ in their impact toughness test temperature: S235J0 requires 27 Joules (J) of energy at 0°C, while S235J2 requires the same 27J at a colder -20°C, making J2 better for colder environments. Both offer good weldability and are used in general construction, with the 'S' for structural, '235' for yield strength, and the letter suffix (J0, J2) indicating impact test conditions.
Chemical Composition of s235J0
|
Element |
Composition (% by weight) |
|---|---|
|
Carbon (C) |
0.17 max |
|
Manganese (Mn) |
1.40 max |
|
Phosphorus (P) |
0.035 max |
|
Sulfur (S) |
0.035 max |
|
Silicon (Si) |
0.55 max |
|
Copper (Cu) |
0.55 max |
|
Nitrogen (N) |
0.012 max |
|
Iron (Fe) |
Balance |
Chemical Composition of s235J0
|
Grade |
Chemical composition % MAX |
|||||||
|
THICKNESS(MM) |
C |
Mn |
Si |
P |
S |
N |
Cu |
|
|
S235J2 |
≦40 |
0.17 |
1.4 |
~ |
0.025 |
0.025 |
~ |
0.55 |
Mechanical Propertie of s235J0
|
Property |
Value |
|---|---|
|
Yield Strength (min) |
235 MPa |
|
Tensile Strength |
360–510 MPa |
|
Elongation (min, 200 mm) |
24% |
|
Impact Toughness (Charpy V-notch) |
27 J at 0°C |
|
Hardness (HB, typical) |
120–170 HB |
Mechanical propertie of S235J2
|
S235J2 |
Mechanical properties MIN |
||||||
|
|
Yield Strength |
Tensile Strength |
Elongation in 2 in. |
||||
|
≦16 |
235 |
360-510 |
15 |
||||
|
>16, ≦100 |
225 |
||||||
|
>100 |
165 |
330-510 |
|||||
Key Characteristics
Standard: EN 10025-2.
Type: Non-alloy structural steel.
Yield Strength: Minimum 235 MPa (for thickness ≤ 16mm).
Tensile Strength: 360-510 MPa.
Uses: General structural components, bridges, machinery, construction.
