The specifications listed below apply to metal and metal products. If you're looking for specific information about metals in architectural applications, please contact Eric Simonsen.
Please check with the ASTM International Technical Library for the most up-to-date information on metals specifications.
The American Society for Testing and Materials (ASTM) International has published the following specifications which relate to products distributed by Metal Tech-USA.
- ASTM B69-13 - Zinc
- ASTM A653 - Galvanized Steel
- ASTM B370 - Copper
Deutsches Institut für Normung (German Institute for Standardization) is the German national standards body, and is also the German member body to the International Standards Organization (ISO). If DIN adopts an ISO standard, it is denoted as DIN ISO. For DIN ISO standards that are also European standards are denoted as DIN EN ISO.
DIN Standards & Mechanical Properties
RHEINZINK is manufactured to exceed the requirements of Euro-Norm Standard DIN EN 988 (formerly DIN 17770), which prescribes certain minimum material properties for titanium zinc. RHEINZINK is constantly subjected to quality control monitoring according to DIN EN 988, DIN ISO 9001, DIN ISO 14001 requirements, and additionally by an external inspection through an accredited, independent institute (TÜV Rheinland), according to the “Quality Zinc” criteria. RHEINZINK conforms with ASTM B69-13-Architectural Rolled Zinc - Type 1 and Type 2 for Architectural Rolled Zinc.
Type 1 is for prePATINA bright rolled and prePATINA blue-grey zinc.
Type 2 is for graphite-grey zinc. Currently, RHEINZINK is the only manufacturer with a Type 2 designation.
· Density (spec. weight): 7.2 g/cm3
· Melting point: 784 °F (418 °C)
· Recrystallization limit: > 572 °F (300 °C)
· Coefficient of lengthwise expansion (direction of rolling): 2.2 mm/m x 100 K
· Coefficient of expansion (crosswise to direction of rolling): 1.7 mm/m x 100 K
· Elasticity modulus 80,0000 N/mm²
· Not magnetic
· Non combustible
European Standards (ENs) are documents that have been ratified by one of the three European Standardization Organizations (ESOs), CEN, CENELEC or ETSI; recognized as competent in the area of voluntary technical standardization as for the EU Regulation 1025/2012.
elZinc® titanium zinc comes under the EN 988 standard, which defines the general
requirements for titanium zinc strips and sheets for use in the building industry.
The alloying components are high-grade refined zinc of the highest standardized level of purity Zn 99.995 according to EN 1179, with precisely defined additions of copper and titanium. Further components, such as aluminium and other trace elements, are accurately limited and the purity of the alloy is extremely precisely monitored by regular controls. See Technical Manual for mechanical and technological values pertaining to this standard.
elZinc® titanium zinc has been optimized for use in building applications. Prerequisites for this are the rolling process, which is precisely tailored to the elZinc® alloy, and accurate temperature control during manufacture.
This means the achievement of consistent quality and of compliance with all properties.
elZinc® titanium zinc stands out due to
• very good work-ability irrespective of the direction of rolling
• high creep strength (creep strain limit)
• low cold brittleness
• high re-crystallization threshold, i.e. no grain growth until 300°C;
this is crucial for soldering.