301 / SUS301 / 1.4310 Stainless Steel Sheet 0.1 – 3.0mm Thickness Precision Slit Cutting Without Burr With EN 10204-3.1 Certificate

301 Stainless Steel Sheet, also known as SUS301 (JIS) and 1.4310 (EN), is a high-strength austenitic stainless steel widely used in applications that demand excellent elasticity, good corrosion resistance, and precise dimensional control. With a thickness range of 0.1mm to 3.0mm, precision slit cutting, burr-free edges, and full EN 10204-3.1 material certification, this product is especially suitable for spring manufacturing, precision stamping, and structural components.

Thanks to its outstanding work-hardening capability, 301 stainless steel is one of the most preferred grades for components requiring high strength after cold rolling while maintaining good formability.

Product Overview

Precision slit 301 stainless steel sheets are manufactured using advanced cold rolling and slitting technology to achieve tight tolerances, smooth edges, and consistent mechanical properties. Burr-free cutting is critical for downstream processes such as spring forming, stamping, laser cutting, and automated assembly, where edge quality directly affects performance and safety.

The material is supplied in accordance with international standards and is delivered with EN 10204-3.1 inspection certificates, ensuring traceability, chemical composition verification, and mechanical property compliance.

Material Equivalents and Standards

EN 10204-3.1 Certificate
Each batch is supplied with a 3.1 certificate issued by the manufacturer’s authorized inspection representative, confirming:

• Chemical composition

• Mechanical properties

• Heat number traceability

• Compliance with ordered specifications

Product Specifications

Chemical Composition (Typical, %)

This composition provides a balanced combination of corrosion resistance, strength, and formability.

Mechanical Properties (Typical)

Mechanical values vary depending on thickness and cold reduction.

Precision Slit Cutting – Burr-Free Advantage

Precision slit cutting is a critical feature of this product. Advanced slitting lines and edge-conditioning processes ensure:

• No burrs or sharp edges

• Excellent edge straightness

• Consistent width tolerance

• Reduced risk of cracks during forming

• Improved safety in handling and assembly

This is especially important for thin gauges (0.1–0.5mm), spring steel strips, and high-speed stamping applications.

Surface Finish Options

2B Finish

• Smooth, matte appearance

• Produced by cold rolling, annealing, and pickling

• Excellent for forming and structural use

BA (Bright Annealed) Finish

• Highly reflective, clean surface

• Annealed in controlled atmosphere

• Preferred for precision springs, electronic components, and decorative parts

Key Advantages of 301 / SUS301 / 1.4310 Stainless Steel

1. Excellent Work-Hardening Capability

301 stainless steel gains strength rapidly during cold working, making it ideal for spring and load-bearing applications without additional heat treatment.

2. High Strength-to-Weight Ratio

Allows thinner material to achieve the same strength as thicker conventional steel, supporting lightweight design.

3. Good Corrosion Resistance

Performs well in most atmospheric, humid, and mildly corrosive environments.

4. Superior Elasticity and Fatigue Resistance

Critical for springs and components subjected to repeated stress cycles.

5. Precision and Consistency

Tight tolerances and EN 10204-3.1 certification ensure reliability in mass production.

Typical Applications

Spring Applications

• Flat springs

• Compression and tension springs

• Torsion springs

• Spring clips and retaining rings

Precision Stamping & Forming

• Electronic connectors

• Terminal parts

• Shielding components

Structural and Semi-Structural Components

• Automotive brackets and reinforcements

• Railway and transportation parts

• Industrial equipment frames

Electronics & Appliances

• Contact springs

• Structural supports

• Precision housings

Quality Control and Traceability

Each production batch undergoes strict quality inspections, including:

• Chemical analysis

• Mechanical testing

• Dimensional inspection

• Surface and edge quality checks

Full traceability is guaranteed through heat numbers and EN 10204-3.1 certification, making the material suitable for automotive, aerospace, and high-end industrial applications.

Packaging and Delivery

• PVC film or paper interleaving for surface protection

• Export-standard wooden pallets or steel packaging

• Coil or sheet packaging options

• Customized labeling and documentation

Conclusion

301 / SUS301 / 1.4310 Stainless Steel Sheet with 0.1 – 3.0mm thickness, precision slit cutting, burr-free edges, and EN 10204-3.1 certification is a premium material solution for applications requiring high strength, elasticity, precision, and reliability.

Whether used for springs, precision stamping, or structural components, this stainless steel grade delivers consistent performance, excellent processability, and international standard compliance—making it a trusted choice for manufacturers across automotive, electronics, industrial, and engineering sectors.