Stainless Steel Strips 301 304 for Springs in Various Tempers

Specialized in manufacturing high-performance stainless steel strips for spring applications, our products feature Alloy 301 and 304 in various temper conditions: Soft Anneal (SA), 1/4 Hard (1/4H), 1/2 Hard (1/2H), 3/4 Hard (3/4H), and Full Hard (FH). Engineered to meet the strict demands of spring fabrication, these strips offer exceptional elasticity, fatigue resistance, and dimensional stability.

Alloy 301 is renowned for its high tensile strength and formability in spring applications, while 304 provides superior corrosion resistance for environments requiring durability. The controlled annealing and cold-working processes ensure precise hardness levels, making them ideal for compression springs, torsion springs, extension springs, and precision spring components across industries such as automotive, electronics, aerospace, and medical devices.

• Coil Weight: 50kg - 1500kg per coil (Customizable for spring wire applications)
• Inner Diameter: 305mm (Narrow strips) / 508mm (Wide strips)
• Outer Diameter: Up to 1200mm (Subject to thickness and temper)
• Straight Strips Length: 500mm - 6000mm (Precision-cut for spring blanks)

• Precision Temper Control: Consistent hardness across the strip width and length ensures uniform spring performance. Custom temper grades available to match specific spring design requirements.
• Superior Spring Properties: High elastic limit and fatigue resistance (≥1 million cycles under standard load for 301 FH). Low relaxation rate under prolonged stress.
• Dimensional Accuracy: Tight thickness and width tolerances reduce spring manufacturing waste. Flatness tolerance: ≤3mm/m for strips ≥0.5mm thickness.
• Surface Quality: Smooth, defect-free surfaces minimize stress concentrations during spring coiling. Optional anti-fingerprint coatings available.
• Formability: Soft Anneal and 1/4H tempers allow intricate coiling and shaping without cracking. Full Hard temper retains shape after forming.

• Material Standards: ASTM A666, ASTM A313, JIS G4313, EN 10270-3
• Certifications: Mill Test Certificates (MTC) including chemical composition, mechanical properties, and temper compliance. Optional third-party inspection reports available.

• Anti-Rust Protection: Wrapped with VCI paper or PE film. High-temper strips have foam-protected edges.
• Secure Packaging: Coils ≤500kg in reinforced cardboard boxes; >500kg palletized on wooden crates with steel strapping.
• Labeling: Clear identification of grade, temper, thickness, width, and heat number. Custom labels available.

• Quality Assurance: 100% inspection for hardness, dimensional accuracy, and surface defects. Spring performance testing available.
• Warranty: 12-month warranty against temper inconsistency, surface flaws, or dimensional non-conformance.
• Technical Support: Spring design consultation and processing guidance available.
• Return & Replacement: Full refund or free replacement for non-conforming products confirmed by joint inspection.

For custom spring strip requirements or to request samples, contact our technical sales team with your spring design specifications (e.g., wire diameter, spring type, load requirements). We specialize in delivering tailored solutions that enhance spring reliability and performance in the most demanding applications.