MATERIALS

Materials for Special Fasteners and Industrial Bolting

Material selection plays a fundamental role in the design and manufacturing of reliable fastening systems for industrial applications.

Mechanical properties, corrosion resistance, temperature performance and environmental conditions directly affect the durability and performance of fastening components.

EFS supplies special fasteners and custom fastening systems manufactured using a wide range of materials selected according to specific technical and operational requirements.

Technical Documentation and Downloadable Resources

The following documents provide technical information regarding commonly used materials and their properties.

Bolt identification marks

Cold forming materials

Structural steels

Duplex and SuperDuplex materials

Heat-resistant materials and nickel alloys

Quenched and tempered steels

Heat-resistant materials and nickel alloys

Extremely high-temperature resistant materials

Nickel alloys

Free-machining steels

Strength classes for fastening elements

Corrosion and acid-resistant materials

Steel bar weight tables

Titanium

In addition to the materials mentioned above, which are the most common, it is possible to request hardware and bolts in other materials that will be evaluated.

Material Selection Criteria

The selection of suitable materials depends on several technical and application-related factors.

Intended Application

Operating conditions and project requirements determine the material characteristics required for each component.

Component Geometry and Dimensions

Shape, dimensions and design characteristics may require specific materials and manufacturing processes.

Mechanical Strength and Durability

Required performance levels in terms of mechanical resistance, fatigue behaviour and long-term durability influence material selection.

Heat and Surface Treatments

Heat treatments and surface finishing processes may significantly affect the mechanical and physical properties of components.

Materials Available for Industrial Fastening Systems

EFS supplies fastening components manufactured using a variety of materials selected according to specific project requirements.
Commonly used materials include:

  • structural steels
  • quenched and tempered steels
  • stainless steels
  • duplex and super duplex materials
  • nickel alloys
  • titanium
  • high-temperature resistant materials
  • corrosion-resistant materials
  • machining-grade steels

Special Materials Available Upon Request

In addition to commonly used materials, EFS can evaluate specific material requests according to project requirements.

Our technical team supports customers in identifying suitable solutions for critical applications and demanding operating environments.

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