CAAR will host its Centennial BBQ on Sat., June 7th from 3 – 6 p.m. at Pen Park. You will enjoy fantastic networking opportunities, exciting games and activities like cornhole, a bouncy house, and face painting, along with mouthwatering BBQ and sweet treats. Register for FREE today!

所谓c级钢，一般特指机械性能和化学成分均达到美国铁路协会（aar）aar-m-201和aar-m-211c级钢标准的钢材。从1962年开始，美国经aar批准的货运列车，所有车钩均采用c级钢。

用于制作铁路货车、客车、地铁、轻轨等轨道交通车辆的车轮和轮毂。 注：数据仅供参考！ 如有疑问，请填写"我要纠错"！

2018年9月1日 · 本标准与M-107/M-208 《碳素钢车轮规范》相关牌号及技术要求相比，主要有以下变化： ——在M-107/M-208 中AAR-C 材质基础上衍生AAR-CM 材质； ——增加了车轮钢中As、Sn、Sb、Pb 元素控制要求； ——增加了轮辋强度指标要求； 备 案 ——增加了轮辋非金属夹杂物级别控制要求； ——增加了轮辋微观组织要求。 2 0 上述变化详见标准。 1 8 年 本标准2018年3 月首次制订。 0 4 本标准由制造部提出并归口管理。 月 2 4 日 本标准主要起草单位：技术中 …

2013年9月12日 · All freight car wheels manufactured for AAR interchange service must be heat-treatedand of a low-stress design.SCOPE1.1Class B or C wheels must be used for freight cars in interchange service.1.2Class B or C wheels are recommended for use on locomotives.1.3For passenger car service, the various classes are intended generally as follows:2.0 ...

2020年11月24日 · 铸钢件规范mm－013193年采用，0177年最新修订1.0范围本规范适用于机车车辆及其它各种用途且采用a、b、c、d和e级钢铸造的碳钢和合金钢铸件。 除了其他AAR技术条件对某一特定产品另有规定需要变更外，AAR的规范M－01适用于所有的铸件。

aar m—201规格和a.i.s.i.c—1020级铸钢。 本量规(通过与非通过)至少必须转1/2圈。 材料： 1/8英寸厚硬化钢板。 10门滚轮 门滚轮应同心并安有滚珠或滚柱轴承。轴承支撑在特殊设计的轴承用钢轴上。滚珠滑车带式

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AAR Corp. is an American provider of aircraft maintenance services to commercial and government customers worldwide. The company is headquartered in Wood Dale, Illinois, a Chicago suburb. The company employs about 6,000 people, operating in about 30 different countries. John Holmes is the current CEO. [2]

The AAR wheel arrangement system is a method of classifying locomotive (or unit) wheel arrangements that was developed by the Association of American Railroads. Essentially a simplification of the European UIC classification, it is widely used in North America to describe diesel and electric locomotives (including third-rail electric locomotives).