C22E Alloy Steel Bar C22E Round Bars C22E Rods

Product Description

The C22E steel (unalloyed special carbon steel) is specified under the European standard EN 10083-2. It is a medium-low carbon steel designed primarily for engineering components requiring moderate strength and excellent formability, weldability, and responsiveness to surface hardening.

The "E" suffix indicates guaranteed low maximum contents of impurities like phosphorus and sulfur, making it cleaner and more reliable than standard grade C22/CK22 for critical manufacturing processes.

🛠️ Chemical Composition (%)

The strict control over phosphorus ($P$) and sulfur ($S$) prevents hot-shortness and ensures predictable fatigue limits.

🔄 International Equivalents

C22E is widely utilized globally, finding direct equivalents across several major international standards:

• Germany (DIN / WNr): CK22 / 1.1151

• USA (AISI/SAE): 1020 / 1023

• United Kingdom (BS): IC22 / 070M20

• France (AFNOR): XC18 / XC25

• Japan (JIS): S20C / S22C

• Italy (UNI): C21 / C22

📈 Mechanical Properties (Typical Values)

Because it is a carbon steel, its final mechanical properties heavily depend on the cold-working or heat-treatment condition (e.g., Normalized or Quenched & Tempered).

Normalized Condition ($+N$)

• Tensile Strength ($R_m$): $\ge 410\text{ MPa}$

• Yield Strength ($R_e$): $\ge 240\text{ MPa}$

• Elongation ($A_5$): $\ge 24\%$

Quenched & Tempered Condition ($+QT$) — for smaller dimensions

• Tensile Strength ($R_m$): $500 - 650\text{ MPa}$

• Yield Strength ($R_e$): $\ge 320\text{ MPa}$

• Elongation ($A_5$): $\ge 20\%$

⚙️ Key Technical Features

• Excellent Weldability: Due to its lower carbon content (around 0.20%), C22E can be easily welded using standard methods (MIG, TIG, stick) without a mandatory preheating requirement in thin sections.

• Cold Formability: Highly adaptable to cold drawing, bending, and swaging, making it highly preferred for precision rod and wire applications.

• Surface Hardening: While its core hardenability is low, it responds well to carburizing, cyaniding, and nitriding if a hard, wear-resistant outer case is required alongside a ductile core.

🚀 Typical Applications

C22E round bars and rods are widely used in the automotive, construction, and general mechanical engineering industries for parts subjected to low-to-medium stresses:

• Fasteners & Hardware: Tie rods, long studs, forged U-bolts, and specialized heavy-duty clamping pins.

• Machined Components: Light-duty shafts, bushings, spacers, axles, and cold-extruded pins.

• Structural Elements: Forged flanges, levers, linkages, and brackets requiring solid weldability to larger assemblies.

Available Supply Forms

• Finishes: Hot-rolled, cold-drawn (bright finish), turned, or centerless ground.

• Delivery States: Untreated ($+AR$), Annealed ($+A$), Normalized ($+N$), or Cold-drawn ($+C$).