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THE ISO METRIC SYSTEM

Production Materials

The International Metric System (ISO) is a set of globally used standards ensuring that production materials meet quality, safety, and compatibility specifications. This system covers a wide range of materials, from metals to polymers, providing guidelines on how they should be produced, tested, and used. In this document, we will explore the main production materials that comply with ISO standards, analyzing their properties, applications, and manufacturing processes.

Metallic Materials

Properties and Classification

Metallic materials are among the most widely used in industrial production. ISO standards classify metals based on their mechanical and chemical properties. The following table summarizes the main metals and their properties:

Material Tensile Strength (MPa) Hardness (HB) Melting Temperature (°C)
Stainless Steel 520 - 750 150 - 250 1400 - 1450
Aluminum 70 - 700 20 - 150 660
Copper 200 - 400 35 - 110 1083
Titanium 240 - 1200 120 - 330 1668

Manufacturing Processes

The main manufacturing processes for metallic materials include casting, forging, rolling, and welding. These processes must be carried out according to ISO standards to ensure product quality and safety.

Example of a Casting Process:

  1. Raw Material Preparation: Selection and cleaning of metals.
  2. Melting: Heating metals until they reach their melting point.
  3. Pouring: Pouring the molten metal into molds.
  4. Cooling and Solidification: Controlled cooling to achieve the desired shape.

Polymeric Materials

Properties and Classification

Polymers are synthetic materials widely used in various industries, from automotive to packaging. ISO standards provide detailed specifications for the mechanical and thermal properties of polymers. The following table summarizes some of the key properties of various polymers:

Material Density (g/cm³) Elastic Modulus (MPa) Melting Temperature (°C)
Polyethylene (PE) 0.91 - 0.96 200 - 300 120 - 130
Polypropylene (PP) 0.90 - 0.92 1300 - 1800 160 - 170
Polyvinyl Chloride (PVC) 1.30 - 1.45 2500 - 3500 160 - 220
Polyethylene Terephthalate (PET) 1.38 2800 - 3100 250 - 260

Manufacturing Processes

The main manufacturing processes for polymeric materials include injection molding, extrusion, and blow molding. These processes must follow strict ISO standards to ensure that the final products are safe and reliable.

Example of an Injection Molding Process:

  1. Material Preparation: Heating the polymer until it becomes viscous.
  2. Injection: The heated polymer is injected into a mold.
  3. Cooling: The polymer solidifies inside the mold.
  4. Ejection: The finished product is removed from the mold.

References

  1. ISO 9001:2015 – Quality management systems
  2. ISO 14001:2015 – Environmental management systems
  3. ISO 45001:2018 – Occupational health and safety management systems

Conclusion

The adoption of ISO standards in material production processes not only ensures product quality and safety but also increases companies' competitiveness in the global market. ISO-certified materials are recognized for their reliability and superior performance, making them a preferred choice for customers and business partners. Investing in ISO-compliant production materials reduces long-term production costs.