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Standard Specification for Free-Machining Ferritic Stainless Soft Magnetic Alloy Bar for Relay Applications
| 분야 | 03.07 : 자기적 특성 |
|---|---|
| 적용범위 | 1.1 This specification covers free-machining ferritic stainless soft magnetic alloy produced or supplied expressly in cold-finished bar form for use in magnetic cores and other parts requiring a high permeability, low-coercivity stainless steel. 1.1.1 This specification does not cover either cast parts or parts produced by powder metallurgy techniques. 1.2 Two specific alloy types are covered. The primary constituents are shown in Table 1. These types have corrosion resistance similar to AISI Type 430F and Type 430F, Specification A582/A582M. 1.3 This specification covers only these alloy types supplied in cold-finished bars in cross-sectional shapes such as rounds, squares, hexagons, and octagons with diameters (diagonals) greater than or equal to 6.35 mm (0.250 in.) and less than or equal to 41.5 mm (1.63 in.).2 1.4 Certain cold-finished round bar products are capable of being supplied mill annealed to required magnetic properties such as low coercivity. The size range that can be mill annealed is from 6.35 to 41.5 mm (0.250 to 1.63 in.). Other products of these alloys cannot be mill annealed to produce equivalently low coercivity; hence, the final machined parts should be heat treated as recommended by the producer. 1.5 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to customary (cgs-emu and inch-pound) units which are provided for information only and are not considered standard. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
| 국제분류(ICS)코드 | 77.140.40 : 특수 자기특성을 갖은 강 |
| 페이지수 | 4 |
| Edition | 18 |
| No. | 표준번호 | 표준명 | 발행일 | 상태 |
|---|---|---|---|---|
| 1 | ASTM A838-24 | Standard Specification for Free-Machining Ferritic Stainless Soft Magnetic Alloy Bar for Relay Applications | 2024-05-01 | 표준 |
| 2 | ASTM A838-24 REDLINE | Standard Specification for Free-Machining Ferritic Stainless Soft Magnetic Alloy Bar for Relay Applications | 2024-05-01 | 표준 |
| 3 | ASTM A838-18 | Standard Specification for Free-Machining Ferritic Stainless Soft Magnetic Alloy Bar for Relay Applications | 2018-10-01 | 구판 |
| 4 | ASTM A838-18 REDLINE | Standard Specification for Free-Machining Ferritic Stainless Soft Magnetic Alloy Bar for Relay Applications | 2018-10-01 | 구판 |
| 5 | ASTM A838-02(2013) | Standard Specification for Free-Machining Ferritic Stainless Soft Magnetic Alloy Bar for Relay Applications | 2013-05-01 | 구판 |
| 6 | ASTM A838-02(2007) | Standard Specification for Free-Machining Ferritic Stainless Soft Magnetic Alloy Bar for Relay Applications | 2007-05-01 | 구판 |
| 7 | ASTM A838-02 | Standard Specification for Free-Machining Ferritic Stainless Soft Magnetic Alloy Bar for Relay Applications | 2002-10-10 | 구판 |
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