Stainless Steel Spring Wire Standard Specification by ASTM International

This manual outlines the standard specification for austenitic and age-hardenable stainless steel round spring wire, primarily for spring production. The steel must meet the required chemical composition for elements like carbon, manganese, phosphorus, sulfur, silicon, chromium, nickel, molybdenum, nitrogen, and others. The material must also meet the required tensile strengths following the specified heat treatment. Tensile strength requirements for hardened wires and stress-relieved materials are provided. Mechanical tests, such as the wrap test, uniformity (coil test), and bend test, must be conducted on the steel material.

• Spring Wire Specifications: Covers standards for austenitic and age-hardenable stainless steel round spring wire for spring manufacturing
• Chemical Composition: Steel must meet specified composition for carbon, manganese, phosphorus, sulfur, silicon, chromium, nickel, molybdenum, nitrogen, and other elements
• Tensile Strength Compliance: Material must meet required tensile strengths after prescribed heat treatment
• Tensile Strength Requirements: Specifies tensile strength for hardened wires and stress-relieved materials
• Mechanical Testing: Steel undergoes wrap test, uniformity (coil test), and bend test for quality assurance