Quenched Rolled Steel Strip｜Strength, Wear Resistance, and Reduced Heat Treatment Steps

Key Challenges in the IndustryIn the manufacturing of molds, machinery, and mechanical parts requiring high strength, many factories still rely on multiple heat treatment processes to achieve the desired steel hardness. However, these processes often cause issues such as distortion or dimensional changes after heat treatment, uneven hardness across the sheet, and unnecessary time and production costs. If bending or cracking occurs during machining or assembly, parts must be reworked leading to unavoidable material and labor losses.

Root Cause of the Problem

Standard hot or cold rolled steel that has not been hardened requires quenching and tempering before use. If temperature control is inconsistent during these processes, it can cause residual stress within the steel, leading to cracking or dimensional instability after cutting, machining, or forming.

Solution: Quenched Rolled Steel Strip from Yamaichi

Yamaichi Special Steel (Thailand) offers *Quenched Rolled Strip* that has undergone quenching and tempering at the source in accordance with Japanese standards. Each steel sheet is quality controlled for uniform hardness, has a fine microstructure, and is ready-to-use without further heat treatment. This significantly reduces production time, minimizes warping risk, and extends the lifespan of molds or machine components.

Features of YAMAICHI Quenched Rolled Steel

1. SK85YB – High Carbon Quenched Steel for High Wear Resistance

• Carbon content: 0.80–0.90%
• Post-quench hardness: HRC 48–55 (depending on thickness)
• Fine microstructure with no residual stress
• Ideal for: Cutting Dies, Industrial Blades, Spring Plates
• Ready-to-use without additional heat treatment; surface can be ground for maximum precision

2. S60CYB – Medium Carbon Quenched and Tempered Steel for Tough Applications

• Carbon content: 0.55–0.65%
• Post-quench hardness: HRC 42–50
• Tempered to prevent cracking
• Balanced hardness and toughness
• Ideal for: Base Plates, Clamp Plates, Machine Support Plates
• Uniform size and surface, ready-to-use without further hardening

Key Benefits of Yamaichi Quenched Steel

• Produced under Japan Quality standards with ISO 9001:2015 certification
• Precisely controlled hardness (±2 HRC uniformity)
• No need for re-heat treatment
• Reduces production time and risk of steel distortion
• Offers cut-to-size service and precision surface grinding
• In-stock and ready for delivery in Thailand for mold, machinery, and automotive part industries

※ For more details, please download the brochure or contact us.

Glossary

• Quenching: A heat treatment process involving rapid cooling to increase steel hardness
• Tempering: Controlled heating to enhance steel toughness and reduce brittleness
• Residual Stress: Internal stress retained in steel from heat treatment, which can cause cracking or dimensional distortion if not controlled
• Ready-to-Use Steel: Steel that has been fully heat treated at the source and can be used or formed immediately

#QuenchedSteel #QuenchedRolledStrip #YamaichiSteel #JapanQuality #SK85YB #S60CYB #HeatTreatment #MoldSteel #ISO9001