Aesthetic enhancement (e.g., zinc plating with blue or yellow passivation) Altered surface lubrication and friction coefficients
The code system was built as follows:
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Fasteners must be baked at specific temperatures (usually between 180°C to 220°C) within a strict timeframe immediately after plating to drive out trapped hydrogen atoms. 4. Testing and Conformity
HV or property classes 10.9 and higher are highly susceptible. Aesthetic enhancement (e
| Source | Availability | Format | Language | |--------|-------------|--------|----------| | (shop.standards.ie) | Superseded, available for purchase | Hardcopy, PDF | German, English | | DIN Media (www.din.de) | Historical document, available for purchase | Hardcopy, PDF | German, English |
The International Organization for Standardization developed a unified global standard to replace it: . Why the Transition Matters Testing and Conformity HV or property classes 10
The standard categorizes coating performance based on hours of resistance to neutral salt spray (NSS) testing according to ISO 9227 or DIN 50021. Coating Type Typical Thickness (µm) White Rust Resistance (Hours) Red Rust Resistance (Hours) Zinc (Zn) - Clear Zinc (Zn) - Yellow 72 – 120 Zinc (Zn) - Black 3. The Risk of Hydrogen Embrittlement