What Is S235J2 Steel
S235J2 steel, material number 1.0117, is a non-alloy carbon structural steel grade in accordance with EN 10025-2, designed for structural applications requiring guaranteed impact toughness at minus 20 degrees C. The designation means a minimum yield strength of 235 MPa with the J2 quality, tested at minus 20 degrees C.
Mechanical Properties
The minimum yield strength is 235 MPa for thicknesses up to 16 mm and 225 MPa for 16 to 40 mm, with a tensile strength of 360 to 510 MPa and a minimum elongation of about 24 percent in 50 mm. The impact energy requirement is 27 J at minus 20 degrees C, providing reliable toughness in cold service.
Chemical Composition
Composition limits are carbon 0.17 percent maximum, silicon 0.35 percent maximum, manganese 0.65 percent maximum, phosphorus 0.030 percent maximum, and sulfur 0.030 percent maximum, with low carbon ensuring easy welding and machining.
Processing and Fabrication
The plate can be cut by flame, laser, and plasma; bent hot or cold; welded by electrode arc, submerged arc, and gas shielded welding; and stamped into complex shapes. The modulus of elasticity is 190 to 210 GPa, density 7.85 kg per cubic decimeter, and Poisson's ratio 0.27 to 0.30.
Equivalents and Applications
ASTM A36 is a common engineering equivalent with similar tensile and yield strength. The plate is used for construction beams and columns, shipbuilding hulls and decks, automotive chassis and frames, and mechanical parts, in thicknesses from 3 to 200 mm with widths of 1000 to 4000 mm and lengths to 12000 mm.
Frequently Asked Questions
Q: What is S235J2 equivalent to?
A: ASTM A36 is a common functional equivalent.
Q: What impact temperature applies?
A: Minus 20 degrees C with 27 J minimum.
Q: What is the material number?
A: 1.0117.
Q: What thickness range is available?
A: 3 to 200 mm.
Q: Can S235J2 be welded?
A: Yes, by all common processes.
Q: What is the tensile strength?
A: 360 to 510 MPa.
For S235J2 plate quotations with EN 10204 certification, contact our sales team.