ASTM A313-2017 pdf free download
ASTM A313-2017 pdf free download.Standard Speci fication for Stainless Steel Spring Wire
1. Scope
1.1 This specification covers austenitic, austenitic-ferritic, and age-hardenable stainless steel round spring wire intended especially for the manufacture of springs. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.3 Unless the order specifies an “M” designation, the material shall be furnished to inch-pound units. 1.4 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
3. Ordering Information
3.1 It is the responsibility of the purchaser to specify all requirements that are necessary for material ordered under this specification. Such requirements may include, but are not limited to the following: 3.1.1 Quantity (weight), 3.1.2 Name of material (stainless steel spring wire), 3.1.3 Finish (see 8.1), 3.1.4 Dimension (diameter), 3.1.5 Type designation (Table 1), 3.1.6 ASTM designation and date of issue, 3.1.7 Tensile strength level, when applicable (Table 11 and Table 12), 3.1.8 Supplementary requirements for government procurement, and 3.1.9 Special requirements. N OTE 1—A typical ordering description is as follows: 2000 lb (1000 kg) Stainless Steel Spring Wire, cold-drawn Class 1, bright finish, 0.032-in. (0.82 mm) diameter, in 100-lb (50 kg) 16-in. (0.4 m) coils, Type 302 to ASTM A313, dated .
4. General Requirements for Delivery
4.1 In addition to the requirements of this specification, all requirements of the current edition of Specification A555/ A555M shall apply. Failure to comply with the general requirements of Specification A555/A555M constitutes non- conformance with this specification.
5. Manufacture
5.1 Types 302 Class 1, 304, 305, 316, 321, 347, UNS S20230, and Grades S20430 and XM-28 shall be cold drawn to produce the required mechanical properties. 5.2 Type 631, Type 302 Class 2, and Grade XM-16 shall be furnished in the cold-drawn condition ready for fabrication. Following fabrication Type 631 and Grade XM-16 shall be age or precipitation hardened to produce their maximum strength properties. The tensile strengths to be obtained following the prescribed heat treatment are shown in Table 2 and Table 3 for hardened wire. Type 302 Class 2 shall be stress relieved following fabrication and meet the requirements shown in Table 4. The nominal as-drawn tensile strengths are provided as a guide for the spring manufacturer.
7.1.4 Grade XM-16 shall conform to the requirements shown in Table 3 when heat treated 850°F [454°C] for / h and air cooled. 7.1.5 Grade XM-28 shall conform to the requirements shown in Table 7. 7.1.6 Type 302 Class 2 shall conform to the requirements shown in Table 4. 7.1.7 Grade S20430 shall conform to the requirements shown in Table 8. .7.1.8 Cold drawn grade S30151 shall conform to the re- quirements shown in Table 9. 7.1.9 Cold drawn grade UNS S20230 shall conform to the requirements shown in Table 10. 7.1.10 Cold drawn, as delivered grade S32205 shall con- form to the requirements shown in Table 11 and Table 12. 7.2 Wrap Test: 7.2.1 Wire 0.162 in. [4.11 mm] and smaller in diameter shall wind on itself as an arbor without breaking. 7.2.2 Wire larger than 0.162 in. [4.11 mm] in diameter shall wind without breaking on a mandrel having a diameter twice the diameter of the wire. 7.3 Uniformity (Coil Test):7.3.1 In the as-cold drawn condition, a specimen coil shall be wound on an arbor of the size specified in Table 13 to form a tightly wound coil. 7.3.2 After winding, the specimen coil shall be stretched to a permanent set four times its as-wound length. After this treatment, the specimen coil shall show uniform pitch with no splits or fractures. 7.4 Cast- -A loop or ring shall be cut from the bundle and allowed to fall on the floor. The wire shall lie flat and not spring up or show a wavy condition. 7.5 Bend Test- _When specified in the purchase order, Types 302, 304, 305, 316, 321, and 347 shall be tested by the bend test. A piece not more than 10 in. [254 mm] long shall be selected from each test sample. These specimens shall be tested in a bending machine conforming substantially to Fig. 1. Bends shall be made at as nearly a uniform rate as possible， not exceeding 50 bends per minute, and in no case shall the speed be so great as to cause undue heating of the wire. The test specimen shall be bent back and forth through a total angle of 180° until failure occurs. Each 90° movement in either direction shall be counted as one bend. The wire shall withstand the minimum number of bends specified in Table 5 and Table 6.
