【国外标准】 Standard Specification for Forgings, Carbon and Alloy Steel, for Railway Use (Withdrawn 2004)
本网站 发布时间:
2024-02-28
- ASTM A730-93(1999)
- Withdrawn, Replaced
- 定价: 0元 / 折扣价: 0 元
- 在线阅读
开通会员免费在线看70000余条国内标准,赠送文本下载次数,单本最低仅合13.3元!还可享标准出版进度查询、定制跟踪推送、标准查新等超多特权!  
查看详情>>
标准简介
适用范围:
1.1 This specification covers eight grades of untreated and heat-treated carbon steel forgings and six grades of heat-treated alloy steel forgings for railway use. Note 1-Railway axles are covered by Specification A21. 1.2 The grades of carbon steel forgings and the purposes for which they are frequently used are as follows, the choice depending on design and stress or service to be imposed: 1.2.1 Grade A is untreated and is mostly used for drop forgings and parts of minor importance, and those which are to be case hardened. 1.2.2 Grade B is untreated and is used for a general group of miscellaneous ordinary forgings where heat treatment is not deemed necessary. 1.2.3 Grade C is annealed, normalized, or normalized and tempered. 1.2.4 Grade D is annealed, normalized, or normalized and tempered. 1.2.5 Grade E is normalized and tempered. 1.2.6 Grade F is double normalized and tempered. 1.2.7 Grade G is quenched and tempered. 1.2.8 Grade H is normalized, quenched, and tempered. 1.2.9 Grades E, F, G, and H forgings are used in high-duty service on locomotives, cars, and other equipment. 1.3 The grades of alloy steel forgings are as follows: 1.3.1 Grades I, J, and K are normalized and tempered. 1.3.2 Grades L, M, and N are normalized, quenched, and tempered, and are used in heavy-duty service on locomotives, cars, and special equipment. Note 2-The forgings described above were formerly designated as follows: Current Grade Former Designation and Grade A B C D E F G H I J K L M N A 236, A A 236, B A 236, C A 236, D A 236, E A 236, F A 236, G A 236, H A 238, A A 238, B A 238, C A 238, D A 238, E A 238, F 1.4 Supplementary Requirements (Sections S1 to S5) of an optional nature are provided. These shall apply only when specified by the purchaser. 1.5 The values stated in inch-pound units are to be regarded as the standard.
标准号:
ASTM A730-93(1999)
标准名称:
Standard Specification for Forgings, Carbon and Alloy Steel, for Railway Use (Withdrawn 2004)
英文名称:
Standard Specification for Forgings, Carbon and Alloy Steel, for Railway Use (Withdrawn 2004)标准状态:
Withdrawn, Replaced-
发布日期:
-
实施日期:
出版语种:
- 其它标准
- 上一篇: ASTM A729/A729M-17(2022) Standard Specification for Carbon and Alloy Steel Axles, Heat-Treated, for Mass Transit and Electric Railway Service
- 下一篇: ASTM A732/A732M-20 Standard Specification for Castings, Investment, Carbon and Low-Alloy Steel for General Application, and Cobalt Alloy for High Strength at Elevated Temperatures
- 推荐标准
- 国家标准计划
- 24/30491443 DC standard
- 24/30489392 DC BS EN IEC 62358 Ferrite cores. Standard inductance factor for gapped cores and its tolerance
- BS ISO 19848:2024 - TC Tracked Changes. Ships and marine technology. Standard data for shipboard machinery and equipment
- BS ISO 19848:2024 Ships and marine technology. Standard data for shipboard machinery and equipment
- 24/30487130 DC BS EN 50566:2017/A2:2024 Product standard to demonstrate the compliance of wireless communication
- BS IEC 61360-7:2024 Standard data element types with associated classification scheme
- 24/30486472 DC - Product standard
- KS M ISO 4259-4 석유 및 관련 제품 — 측정 방법과 결과의 정밀도 — 제4부: 개별 실험실에서 표준 시험방법의 실행에 대한 ‘통계적 관리’ 상태를 확인하기 위한 통계적 관리도의 사용
- KS C IEC 61340-4-7 정전기학 — 제4-7부: 구체적 적용 분야에 대한 표준 시험방법 — 이온화
- KS C IEC 61340-4-8 정전기학 — 제4-8부: 구체적 적용 분야에 대한 표준 시험방법 — ESD 차폐성 — 봉투
- KS C IEC 61340-4-6 정전기학 — 제4-6부: 구체적 적용 분야에 대한 표준 시험방법 — 손목접지대
- 24/30485973 DC standard
- BS EN 14662-1:2023 - TC Tracked Changes. Ambient air quality. Standard method for measurement of benzene concentrations
- KS C IEC 61837-2 주파수 제어 및 선택을 위한 표면 실장형 압전 장치 — 표준 아웃라인 및 단자 리드 연결 — 제2부: 세라믹 함체
- 24/30485462 DC BS EN IEC 61753-1 Fibre optic interconnecting devices and passive components - Performance standard