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VDA 235-205 - High strength and ultra-high strength fasteners with bainitic heat treatment for the automotive industry - property classes 12.8U to 16.8U

VDA-Recommendations, 01 August 2020

VDA 235-205 - High strength and ultra-high strength fasteners with bainitic heat treatment for the automotive industry - property classes 12.8U to 16.8U

In addition to fasteners of property classes 8.8 to 12.9 in accordande with DIN EN ISO 898-1 or recommendation VDA 235-204 with martensitic microstructure, in this recommendation requirements for ultra-high strength fasteners with bainitic microstructure of property classes 12.8U to 16.8U are specified. Providing comparable or even improved functional properties, the development of such fasteners is a contribution to the increasing require-ments for weight reduction of components and systems in cars and thus also of the total weight of vehicles as well as especially to an increased efficiency of engines. The main characteristic of ultra-high strength fasteners in accordance with this recommendation is the lower bainitic instead of the martensitic, heat treatment to achieve ultra-high tensile strength values in combination with excellent ductility and fatigue properties.

Available languages: German, English

Chargeable Order

You can order this flyer under the following conditions:

Price VDA members:
Multi seat license: 114,29 €
Single seat license: 57,14 €

Price non-VDA members:
Multi seat license: 114,29 €
Single seat license: 57,14 €

All prices excl. 5.0% legally VAT plus handling fee

Please choose a licencing and the order quantity

114,29 €
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