Stainless Steel Strip｜Strength, Corrosion Resistance, Ideal for Industrial Mold Applications

Main Industry ChallengesIn mold making, machinery, and electronics industries, common issues include metal corrosion, warping after heat treatment, and surface degradation when exposed to moisture or chemicals during production especially in high-temperature or chemically-laden environments. These problems can cause rust, oxide staining, reduced dimensional accuracy after treatment, and frequent part replacements or repairs. This leads to increased downtime for maintenance and unnecessary production costs.

Root Causes

While carbon steel offers high mechanical strength, it lacks corrosion resistance and is prone to oxide stains during heat treatment or welding. This makes it unsuitable for applications requiring cleanliness, precision, and durability such as electronic molds, automotive parts, and medical devices.

Solution: Japanese-Grade Stainless Steel Sheet from Yamaichi

Yamaichi Special Steel (Thailand) offers high-grade industrial stainless steel sheets manufactured to Japanese standards, designed for industrial environments that require strength, corrosion resistance, and high dimensional stability.

Features of YAMAICHI Stainless Steel

1. SUS301 – High Tensile Stainless Steel

• Austenitic structure
• High flexibility, with increased hardness via cold work hardening
• Ultimate tensile strength up to ~1300 MPa after cold rolling
• Moderate to high corrosion resistance
• Ideal for: Metal springs, thin molds, and parts requiring excellent shape memory

2. SUS304 – General Purpose Stainless Steel

• Industry-standard grade (equivalent to JIS G4305)
• Excellent corrosion resistance in general environments and food contact applications
• Tensile strength: approx. 520–750 MPa
• Easy to weld, form, and polish
• Ideal for: Mold structures, anti-corrosion shields, and general machinery components

3. SUS631CSP – Extra-Hard Spring Stainless Steel

• Also known as 17-7PH Stainless (Cr17Ni7Al)
• Treated with precipitation hardening
• Hardness up to HRC 45–50
• Excellent shape retention at high temperatures
• Ideal for: Spring molds, spring plates, and precision electronic components requiring flexibility and accuracy

Key Benefits of Yamaichi Stainless Steel

• Manufactured to Japan Quality standards with ISO 9001:2015 certification
• High corrosion resistance, even in humid or chemically active environments
• Supports heat treatment/aging processes for SUS301 and SUS631CSP
• Smooth and polishable surface suitable for molds or decorative components
• Cut-to-size service and fast delivery from in-country stock

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

Glossary

• Austenitic Structure: Crystal structure offering high toughness and flexibility in 300 Series stainless steels
• Precipitation Hardening: A process to strengthen metals through controlled crystal formation of alloying elements
• Corrosion Resistance: A metal’s ability to resist chemical or moisture-induced deterioration
• Tensile Strength: The maximum stress a material can withstand while being stretched or pulled before breaking

#StainlessSteel #YamaichiSteel #JapanQuality #SUS301 #SUS304 #SUS631CSP #IndustrialMold #HeatTreatment #ISO9001