20PCS Alloy Spring Steel Wire, Black Oil Quenched 55crsi Straight Wire, 50cm/20in High Elasticity & High Hardness Steel Diameter 0.6mm-3.5mm(1.5mm)

SpecificationsMaterial: SteelLength: 500 mm (20 inches)Diameter Options:0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2.0 mm, 2.2 mm, 2.5 mm, 2.6 mm, 3.0 mm, 3.5 mmKey FeaturesHigh Elasticity & DurabilityMade from high-quality steel, this wire features a smooth, burr-free surface. Its excellent shape-memory performance allows it to return to its original form after deformation, ensuring long-term reliability and versatility.Stable Performance in Extreme ConditionsDesigned to operate within a wide temperature range of -15°C to 150°C, the wire maintains strength, elasticity, and structural integrity even in demanding environments.Wide Range of ApplicationsIdeal for mobile phone antennas, fishing hooks, mechanical components, crafts, and various DIY projects. Suitable for both professional users and hobbyists who require dependable and adaptable steel wire.NotesSlight color differences may occur due to lighting and monitor settings; the actual color is primarily black-gray.Manual measurement may result in a 1–3 mm tolerance. Please confirm before purchase.

• Metallic Appearance & Smooth Finish:The spring wire features a black, glossy metallic surface that conveys strength and durability. It has a uniform round cross-section and a smooth surface finish, effectively reducing friction and wear. The wire can be easily cut to the required length for flexible use.
• Professional Heat Treatment Process:After coiling, the spring wire is tempered at 380–420°C to relieve surface and internal stress. Following shot blasting, it undergoes hot pressing or stress relief at 250°C, ensuring stable mechanical performance and extended service life.
• Excellent Elasticity & Resilience:Spring wire offers outstanding elasticity and quickly returns to its original shape after deformation. This makes it ideal for applications requiring consistent rebound performance, such as springs and precision mechanical components.
• Wide Range of Applications:Suitable for manufacturing compression, tension, and torsion springs, as well as for use in mechanical parts, automotive manufacturing, medical equipment, electronics, textiles, chemical pipelines, handcrafts, hand-woven projects, metal jewelry DIY, and personal DIY applications.
• Multiple Specifications Available:Offered in a variety of diameters and specifications to meet different industrial, commercial, and DIY requirements.