C100S – 1.1274

Water-Quenched Spring Steels

C100S – 1.1274 / Ck101 / C100RR / CS95

C100S – 1.1274 steel grade belongs to the group of high-carbon structural steels and is commonly used in applications requiring high hardness, wear resistance, and mechanical strength. This steel may be identified by different standard designations in various countries. For instance, it is known as Ck101 in Germany, C100S in certain European standards, C100RR in France, and CS95 in the United Kingdom. Although the naming conventions differ, the chemical composition and intended applications of these steel grades are largely similar, enabling their widespread use in international engineering and manufacturing industries.

C100S steel typically contains approximately 0.95% – 1.05% carbon. This very high carbon content gives the steel excellent hardenability. When suitable heat treatment processes are applied, the material can reach very high hardness levels and significant wear resistance. For this reason, it is frequently used in the production of cutting, piercing, or friction-exposed components.

This steel grade responds very well to hardening and tempering treatments. The hardening process increases the surface and overall hardness of the material, while tempering reduces brittleness and provides a more balanced mechanical structure. This allows the steel to achieve both high strength and a certain level of toughness. However, due to the high carbon content, C100S steel may exhibit greater brittleness compared to low-carbon steels, making proper heat treatment and appropriate application selection particularly important.

C100S steel is generally produced in bar, plate, or strip form and offers reliable performance in mechanical systems requiring high hardness and wear resistance. It is also widely used in the manufacturing of cutting tools and hand tools.

The combination of durability, high hardness, and excellent wear resistance makes C100S – 1.1274 steel an important engineering material in modern industry. It provides long service life and reliable performance, particularly in applications where mechanical strength is critical.

Main Application Areas

• Knife and cutting tool manufacturing
• Hand tools and durable metal equipment
• Wear-resistant machine components
• Springs and elastic metal parts
• Precision metal components used in measuring instruments
• Lock mechanisms and spring-loaded systems
• Durable metal parts used in agricultural machinery
• Certain high-strength mechanical components in the automotive industry
• Machine components designed for heat treatment hardening

Thanks to these characteristics, C100S – 1.1274 and equivalent steel grades are widely preferred engineering materials in industrial applications requiring high hardness, durability, and wear resistance.

General Identity

C100S – 1.1274

Equivalent Grades

C100S – 1.1274

Standards

C100S – 1.1274

Chemical Composition

C100S – 1.1274

Mechanical Properties

C100S – 1.1274