VDA 230-214 Resistance of metallic materials to condensate corrosion in exhaust-gas-carrying components

This VDA test specification sheet describes the procedures used in the corrosion testing of metallic materials and surfaces which are planned for use in exhaust gas-carrying com-ponents.
The testing results give information about which materials tend to show corrosive reactions if exposed to corrosion conditions on the exhaust gas side. In doing so, special exhaust gas condensates and a defined, newly developed test technology is used.
The testing of the corrosion characteristics under atmospheric corrosion (outside of the exhaust gas-carrying component) is not a part of this VDA test specification.
If the actual temperatures and possible condensate compositions which the exhaust gas-contacting surfaces are exposed to deviate greatly from the condensates defined in this test specification sheet, these parameters should also be adjusted in the trials. In this case, the corresponding deviations must be agreed upon by the involved parties.
It should be observed that the implementation of the laboratory trials described here cannot substitute for actual component behaviour under practical field conditions.
Regarding the decision involved with choosing materials for exhaust gas-contacting vehicle components, additional extended tests which are above and beyond the contents of the component-specific tests described here must be done using practical exposures.
When using chemicals and higher temperatures, the respective valid safety regulations have to be followed.

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本VDA测试规范表详细阐述了适用于计划用于排气系统部件的金属材料及表面的腐蚀测试流程。该测试结果提供了有关哪些材料在暴露于排气侧的腐蚀条件下易发生腐蚀反应的信息。为此，采用了特殊的排气凝结物及一项定义明确且新近开发的测试技术。大气腐蚀（即排气系统部件外部）下的腐蚀特性测试并不包含在本VDA测试规范之内。若排气接触表面实际所受的温度及可能的凝结物组成与本测试规范表中定义的凝结物有显著差异，则这些参数也应相应调整于试验中。在此情况下，相关各方必须就这些偏差达成一致。值得注意的是，此处所述的实验室试验的实施不能替代实际现场条件下部件的行为。关于选择排气接触车辆部件材料的决策，必须进行额外的扩展测试，这些测试超出了此处所述的部件特定测试内容，并需通过实际暴露进行。在使用化学品和较高温度时，必须遵循相应的有效安全规定。本出版物及其他文件现可在我们的新网上商店获取。对于您的首次订购，请在新网上商店重新注册。如有任何疑问，请通过[e-mail]与我们联系。