BS S 153-1976 Specification - 21 2% nickel-chromium-molybdenum steel billets bars forgings and parts (1230-1430 MPa limiting ruling section 40 mm)《规范 5 2%镍-铬-钼钢方坯、棒材、锻件及零件(1230-143.pdf
《BS S 153-1976 Specification - 21 2% nickel-chromium-molybdenum steel billets bars forgings and parts (1230-1430 MPa limiting ruling section 40 mm)《规范 5 2%镍-铬-钼钢方坯、棒材、锻件及零件(1230-143.pdf》由会员分享,可在线阅读,更多相关《BS S 153-1976 Specification - 21 2% nickel-chromium-molybdenum steel billets bars forgings and parts (1230-1430 MPa limiting ruling section 40 mm)《规范 5 2%镍-铬-钼钢方坯、棒材、锻件及零件(1230-143.pdf(8页珍藏版)》请在麦多课文档分享上搜索。
1、BRITISH STANDARD AEROSPACE SERIES CONFIRMED JUNE 1999 BS S 153:1976 Incorporating Amendment No.1 Specification for 2“ % nickel-chromium- molybdenum steel billets, bars, forgings and parts (12301430 MPa: limiting ruling section40mm) UDC 629.7:669.15 24 26 28:669.14.018.29BSS153:1976 This British Stan
2、dard, having been prepared under the directionof the Aerospace IndustryStandards Committee,was published underthe authority of the Executive Board on 31 March1976 BSI 01-2000 The following BSI references relate to the work on this standard: Committee reference ACE/15 Draft for comment 74/74367 DC IS
3、BN 0 580 08749 2 A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This do
4、cument comprises a front cover, an inside front cover, pages i and ii, pages 1 and 2 and abackcover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publicat
5、ion Amd. No. Date of issue Comments 3523 August1981 Indicated by a sideline in the marginBSS153:1976 BSI 01-2000 i Contents Page 1 Inspection and testing procedure 1 2 Manufacture 1 3 Chemical composition 1 4 Surface dressing 1 5 Condition 1 6 Heat treatment 1 7 Mechanical properties 2ii blankBSS153
6、:1976 BSI 01-2000 1 NOTEThe specified chemical composition, heat treatment and tensile properties comply with AECMA Recommendation FE-PL73 (for material heat treated to a tensile strength of 12301430 MPa). 1 Inspection and testing procedure 1.1 General. This British Standard shall be used in conjunc
7、tion with the relevant sections of the latest issue of BS S 100 as follows: 1.2 Sulphur printing or deep etching tests. Onesample shall be taken from each ingot for sulphur printing or deep etching tests. 1.3 Ultrasonic examination. Billets and bars and, where applicable, forgings shall be subjected
8、 to ultrasonic examination. 2 Manufacture The material shall be manufactured by an electric process. 3 Chemical composition The steel shall contain: 4 Surface dressing The material shall be overall dressed. 5 Condition 5.1 Unless otherwise required by the order, the material shall be supplied in the
9、 appropriate condition stated below: 5.2 Parts shall be supplied finally heat treated. 6 Heat treatment 6.1 Softening treatment. The softening treatment shall consist of heating uniformly at a temperature of not less than 650 C. 6.2 Final heat treatment 6.2.1 The final heat treatment shall consist o
10、f the following: a) Hardening. Heat at a temperature of850 10 C, followed by cooling in oil. b) Tempering. Heat uniformly at a temperature of not less than 520 C, followed by cooling in air. 6.2.2 Hardened and tempered bars which have been subjected to a cold straightening or cold rolling operation
11、shall be given a stress-relieving treatment, which shall be sufficient to restore the proof stress. Bars for machining delivered in other than the finally heat treated condition (see 5.1) sections 1 and 2 Bars for machining delivered in the finally heat treated condition sections 1 and 3 Forging sto
12、ck and billets and bars for subsequent working sections 1 and 5 Forgings sections 1 and 6 Parts finally heat treated aftermachining sections 1 and 7 Element % min. max. Carbon 0.27 0.35 Silicon 0.15 0.35 Manganese 0.45 0.70 Phosphorus 0.025 Sulphur 0.020 Chromium 0.50 0.80 Molybdenum 0.45 0.65 Nicke
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
本资源只提供5页预览,全部文档请下载后查看!喜欢就下载吧,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- BSS1531976SPECIFICATION212NICKELCHROMIUMMOLYBDENUMSTEELBILLETSBARSFORGINGSANDPARTS12301430MPALIMITINGRULINGSECTION40MM
链接地址:http://www.mydoc123.com/p-589144.html