08 — alloy Steel: Composition, Properties & Applications

Also known as: 08
High-quality carbon structural steel. (GOST 1050; equiv GB 20 / AISI 1020 / DIN C22 / JIS S20C). Nominal values—confirm mill certificate.

CHEMICAL COMPOSITION
C:0.17-0.23;Si:0.17-0.37;Mn:0.35-0.65

MECHANICAL PROPERTIES
Tensile:≥410 MPa;Yield:≥245 MPa;Elong:≥25%

TYPICAL APPLICATIONS
优质碳素结构钢。,"Bar

AVAILABLE FORMS
Forging"

STANDARDS & EQUIVALENT GRADES
GOST 1050 08; GB 20 / DIN C22; AISI 1020 / JIS S20C

HEAT TREATMENT
Typically normalized (880–920 °C, air cool) or carburized (900–930 °C) for case-hardening grades, then quenched and tempered at 150–200 °C.

PROCESSING PRECAUTIONS
Weldable with standard procedures; preheat may be needed for thick sections or higher-carbon/ alloy grades. Protect from decarburization during heating (controlled atmosphere or protective coating).

SOURCE & SUPPLY
Shanxi Youte Steel stocks 08 in bars, plates, pipes and forgings with mill test certificates, cut-to-length service and export packaging. Contact our team for quotations and technical data sheets.