In the fields of precision spring steel and industrial blade manufacturing, when a client poses a challenging inquiry such as "Do you have 1.1274/C100S+QT with a thickness of 0.1mm, a width of 230mm, and a length of 72 meters available for purchase?", it demands exceptionally high standards regarding the supplier's rolling limits and heat treatment capabilities. Confronted with this specific requirement, we not only fully satisfy it but also achieve end-to-end quality control backed by our mature production line advantages.
I. Classic Fine-Blanking High-Carbon Steel: 1.1274 / C100S Material Analysis
1.1274 (internationally designated as C100S, an evolution of AISI 1095 with high purity) is a premium high-carbon tool steel with a carbon content as high as approximately 1.0%. After undergoing a quenched and tempered (+QT) state treatment, it exhibits unparalleled wear resistance, an extremely high elastic limit, and excellent fatigue life, making it widely applied in high-end precision shims, micro springs, electronic components, and high-speed industrial cutting blades.
II. Empowered by the 20-High Mill: Achieving the Micron-Level Breakthrough at 0.1mm Thickness
Rolling hard, high-deformation-resistance high-carbon steel down to an ultra-thin thickness of 0.1mm while maintaining a width of 230mm easily leads to center buckles, edge waves, or uneven thickness on conventional 4-high or 6-high rolling mills.
●The Domain of the 20-High Sendzimir Mill: C100S is a routine, staple product of our 20-high rolling mills.
●Grain and Carbide Refinement: Relying on the powerful multi-roll reduction capacity and micron-level gauge control system of the 20-high mill, we apply uniform and immense rolling force to the material during the cold-rolling stage. This achieves stronger, denser grain and carbide refinement prior to quenching, laying a flawless foundation for subsequent heat treatment.
III. Self-Designed Quenching Furnace: Delivering Uniform Hardness and Outstanding Toughness
The biggest pain point for ultra-thin high-carbon steel during the quenched and tempered (QT) stage is that the thinner the strip, the harder it is to uniformly control heat transfer and phase transformation during quenching cooling—any slight negligence can lead to uneven hardness or localized brittle fracture.
●Customized Heat Treatment Line: We utilize a professionally tailored, self-designed quenching furnace paired with a specific quenching medium validated through thousands of trials for online thermal treatment.
●Performance Assurance: This process ensures that the 0.1mm-thick, 230mm-wide ultra-thin strip completes phase transformation within an extremely short timeframe. The resulting C100S+QT material features exceptional uniformity in surface-to-core hardness alongside outstanding bending toughness, completely resolving the industry challenge of ultra-thin spring shims being prone to brittleness and breakage.
Whether you require a customized short length of 72 meters or high-standard full-coil delivery, we are fully prepared to provide you with superior material solutions backed by our core strength of "20-High Precision Rolling + Self-Designed Quenching and Tempering."
Baoshan District,
Shanghai, China.
