This grade is medium-carbon, chromium steel with low, direct hardenability. This steel is used when superior properties is desired. Applications include fasteners-high strength screws, bolts, cap screws, and recessed-head screws- and severely cold headed, upset, and extruded parts. This grade is available as hot worked and cold finished bar, rod, and wire; hot and cold rolled sheet and strip; seamless mechanical tubing; and bar subject to end quench hardenability requirements.
|Standard Designation||Grade, Class, Type, Symbol or Name||Steel||Product Form/ Heat Treatment||Thickness||Yield Strength, min||Tensile Strength, min||Elongation, min, %||Other|
|Number||t, mm||t, in.||N/mm2 or MPa||ksi||N/mm2 or MPa||ksi|
|EN 10217-1:2002||P235TR2||1.0255||EN 10217-1:2002||≤ 16||—||235||—||360-500||—||25 L; 23 T||see standard|
|16 < t ≤ 40||—||225||—|
Forging temperature range: 1150-850℃
Note: Heat to 1200 ℃. Do not forge below 850.
|Soft annealing ℃||HB 30-soft annealed||Normalizing ℃||Hardening temperature for quenching in Water ℃||Hardening temperature for quenching in Oil ℃||Tempering temperature ℃|
Axles, axle journals, control components for cold upsetting and for cold extrusion
Shape of product:
Round, flat, step shape, ring, disc, shaft, other shape depend on customer needs