Jiangsu Cunrui Metal Products Co., Ltd. supplies high-quality 301 Spring Steel Strip, a precision-engineered stainless steel strip known for its outstanding elasticity, high tensile strength, and reliable corrosion resistance. Produced in strict accordance with ASTM, JIS, and EN standards, it offers stable mechanical performance and durability under repeated stress.
Each coil or strip is delivered with a mill test certificate, and third-party inspections such as SGS or BV are available to ensure consistent quality. The 301 Spring Strip is widely used where flexibility, fatigue resistance, and strength-to-weight ratio are critical.

Key Features & Advantages
Excellent Mechanical Properties – Superior tensile and yield strength compared to standard stainless strips.
High Fatigue Resistance – Reliable elasticity under repeated cycles.
Corrosion & Wear Resistance – Maintains performance in demanding environments.
International Certification – Produced under ISO, ASTM, and JIS standards with complete traceability.
Versatile Processing – Suitable for deep drawing, bending, stamping, and forming.
Applications
301 Spring Steel Strip is commonly used in:
Electronics & Appliances: connectors, clips, and precision parts.
Automotive Industry: springs, clamps, seatbelt components.
Construction & Hardware: fasteners, washers, and architectural fittings.
Industrial Manufacturing: saw blades, knives, and machinery accessories.

Product Specifications & Technical Data
|
Item |
Specification / Range |
|
Product Name |
301 Spring Steel Strip |
|
Standard |
ASTM A240 / JIS G4313 / EN equivalent |
|
Thickness |
0.1 mm – 3.0 mm (customizable) |
|
Width |
5 mm – 600 mm (customizable) |
|
Length |
Coil or cut-to-length as required |
|
Surface Finish |
Bright, polished, 2B, BA, pickled, brushed |
|
Tensile Strength |
930 – 1200 MPa |
|
Yield Strength |
≥ 520 MPa |
|
Elongation (%) |
≥ 40 |
|
Hardness (HV) |
180 – 550 (depending on temper condition) |
|
Density |
7.93 g/cm³ |
|
Certification |
ISO, SGS, BV, Mill Test Certificate |
Typical Chemical Composition (%)
|
Element |
Content |
|
C |
≤ 0.15 |
|
Si |
≤ 1.00 |
|
Mn |
≤ 2.00 |
|
P |
≤ 0.045 |
|
S |
≤ 0.030 |
|
Cr |
16.0 – 18.0 |
|
Ni |
6.0 – 8.0 |
|
Fe |
Balance |
Customization Services
At Jiangsu Cunrui Metal Products Co., Ltd., we provide tailored solutions for 301 Spring Strip:
Custom cutting, slitting, and edge processing (round, deburred, or slit edge).
Support for punching, bending, and welding according to drawings.
Various surface treatments such as polishing, coating, or passivation.
Flexible MOQ to support both small trial orders and bulk production.
OEM/ODM service with fast technical consultation.
Price & Delivery
Competitive Pricing: Discounts available for bulk orders.
Quick Lead Time: 7–10 days for stock items; 15–25 days for custom sizes.
Available Inventory: Wide range of standard dimensions in stock.
Export-Ready Packing: Rust-proof and seaworthy packaging.

Our Strength
Strong Manufacturing Capacity: Advanced rolling and slitting equipment.
Annual Output: Over 50,000 tons of spring steel supplied worldwide.
Global Export: Long-term partners across Europe, North America, and Asia.
Quality Assurance: ISO 9001 certified with full traceability.
Professional Team: Skilled engineers offering technical support for material selection and processing.


Service & Support
Prompt Inquiry Response: All inquiries replied within 12 hours.
Technical Guidance: Support in choosing the right grade and temper.
Packaging & Shipping: Export-standard packing for safe delivery.
After-Sales Guarantee: Replacement or refund for verified quality issues.
Compliant Documentation: Full set of shipping and quality certificates provided.
FAQ
Q1: Do you provide material certificates for 301 Spring Steel Strip?
A1: Yes, MTC, SGS, and BV inspection reports are available.
Q2: Can I order custom widths and edge finishes?
A2: Yes, we offer precision slitting and edge customization.
Q3: What is the minimum order quantity?
A3: Flexible MOQs are available depending on product size and finish.
Q4: How fast can you deliver?
A4: Stock items ship within 7–10 days, custom orders within 15–25 days.
Q5: Which surface finishes do you supply?
A5: Bright, 2B, BA, polished, brushed, or customized surface treatment.
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