NBN EN 14330 : 2004

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
  4.1 Dimensions
      4.1.1 Diameter d
      4.1.2 Tolerance on diameter
      4.1.3 Weld diameter d[5]
      4.1.4 Weld section e
      4.1.5 Pitch and gauge length
      4.1.6 Widths
      4.2.1 General
      4.2.2 Steel grade
      4.2.3 Deoxidation
      4.2.4 Chemical composition
  4.3 Heat treatment
  4.4 Mechanical
      4.4.1 Manufacturing proof force
      4.4.2 Breaking force
      4.4.3 Total ultimate elongation
      4.4.4 Deflection
5 Testing
  5.1 Manufacturing test
  5.2 Size of lot and selection of samples
  5.3 Verification of gauge length l
  5.4 Breaking force and total ultimate elongation
      5.4.1 Static tensile test
      5.4.2 Breaking force and total ultimate elongation
  5.5 Deflection
      5.5.1 Bend test
6 Designation
7 Marking
Annex A (informative) Calculation of dimensions, tensile
        force and mechanical properties
        A.1 Dimensions and tolerances
        A.2 Tensile force and mechanical properties
            A.2.1 General
            A.2.2 Calculation values for tensile force WF
            A.2.3 Calculation values for manufacturing proof
                  force MPF
            A.2.4 Calculation values for breaking force BF
            A.2.5 Calculation values for deflection f
Annex B (informative) Relationship with other strength grades
Bibliography

Describes round steel link chains with a pitch of 2,8 d of strength grade 2 from which studless anchor chains for inland navigation vessels are made with the relevant accessories, e.g. joining links, swivel shackles and swivels.