77.140.25 - Spring steels

ISO 6931-1:2016 specifies the grades of stainless steels which are generally used in the cold drawn condition in the form of wire of circular cross-section up to 10,00 mm in diameter, for the production of springs and spring parts exposed to corrosive effects and sometimes to slightly increased temperatures (see Annex A).
Certain steel grades covered by ISO 16143‑2 are also used for springs, although to a much lesser extent. In these cases, the mechanical properties (tensile strength, etc.) wil...view more

This European Standard specifies the requirements relating to:
Steel FE-PA18
Quenched and cold drawn
Wire for spring
D ≤ 4,0 mm
for aerospace applications.

1.1   This European Standard applies to patented cold drawn unalloyed steel wire of circular cross-section for the manufacture of mechanical springs for static duty and dynamic duty applications.
1.2   In addition to this European Standard, the general technical delivery requirements of EN 10021 are applicable.

1.1   This European Standard applies to patented cold drawn unalloyed steel wire of circular cross-section for the manufacture of mechanical springs for static duty and dynamic duty applications.
1.2   In addition to this European Standard, the general technical delivery requirements of EN 10021 are applicable.

ISO 6931-1:2016 specifies the grades of stainless steels which are generally used in the cold drawn condition in the form of wire of circular cross-section up to 10,00 mm in diameter, for the production of springs and spring parts exposed to corrosive effects and sometimes to slightly increased temperatures (see Annex A). Certain steel grades covered by ISO 16143‑2 are also used for springs, although to a much lesser extent. In these cases, the mechanical properties (tensile strength, etc.) will...view more

This Part of EN 10270 applies to oil hardened and tempered spring steel wire made from unalloyed or alloyed steels. They are primarily subject to torsional stresses such as in compression and extension springs and in special cases also for applications where the spring wire is subject to bending stresses such as lever springs. As a rule unalloyed steels are used for applications at room temperature whereas alloyed steels are generally used at a temperature above room temperature. Alloyed steels ...view more

1.1   This European Standard applies to oil hardened and tempered spring steel wire made from unalloyed or alloyed steels. They are primarily subject to torsional stresses such as in coil springs for compression and extension and in special cases also for applications where the spring wire is subject to bending stresses such as lever springs.
As a rule unalloyed steels are used for applications at room temperature whereas alloyed steels are generally used at a temperature above room temperature. ...view more

ISO 6931-1:2016 specifies the grades of stainless steels which are generally used in the cold drawn condition in the form of wire of circular cross-section up to 10,00 mm in diameter, for the production of springs and spring parts exposed to corrosive effects and sometimes to slightly increased temperatures (see Annex A).
Certain steel grades covered by ISO 16143‑2 are also used for springs, although to a much lesser extent. In these cases, the mechanical properties (tensile strength, etc.) wil...view more

ISO 6931-2:2005 applies to cold-rolled narrow strip of thicknesses up to and including 3 mm, in rolled widths less than 600 mm, made from stainless steel.

This Part of this European Standard specifies the nominal dimensions and the tolerances on dimensions and shape of hot rolled spring steel flat bars for ribbed and grooved spring leaves.
This standard is applicable only to steel flats produced from steel grades specified in EN 10089.

TC - Table 3 - Change of values

This Part of this European Standard specifies the nominal dimensions and the tolerances on dimensions and shape of hot rolled steel flat bars for springs with three different types of profiles (A, B, and C). Formulas for calculation the moment of inertia are specified in annex A.
This standard is applicable only to spring steel flat bars produced from steel grades specified in EN 10089.

ISO 683-14:2004 gives the technical delivery requirements for round and flat bars and wire rods manufactured from alloyed steels intended for hot-formed and subsequently heat-treated springs or cold-formed and subsequently heat-treated springs.

This Part of this European Standard specifies the nominal dimensions and the tolerances on dimensions and shape of hot rolled steel flat bars for springs with three different types of profiles (A, B, and C). Formulas for calculation the moment of inertia are specified in annex A.
This standard is applicable only to spring steel flat bars produced from steel grades specified in EN 10089.

This Part of this European Standard specifies the nominal dimensions and the tolerances on dimensions and shape of hot rolled spring steel flat bars for ribbed and grooved spring leaves.
This standard is applicable only to steel flats produced from steel grades specified in EN 10089.

1.1 This European Standard specifies the technical delivery requirements for round and flat bars and rod manufactured from the alloy steels listed in table 3, intended for hot-formed and subsequently heat-treated springs or cold-formed and subsequently heat-treated springs. The products are supplied in one of the heat-treatment conditions given for the different types of products in table 1, lines 2 to 6, and in one of the surface conditions given in table 2.

1.1 This European Standard applies to cold rolled narrow strip of thickness up to and including 3 mm in rolled widths less than 600 mm made from the stainless steel grades listed in table 1. The steels are currently used in the conditions given in table 4 for the production of springs and spring parts that are exposed to corrosive effects and sometimes slightly increased temperatures (see A.1).

TC - Table 3 - Change of values

1.1 This European Standard specifies the technical delivery requirements for round and flat bars and rod manufactured from the alloy steels listed in table 3, intended for hot-formed and subsequently heat-treated springs or cold-formed and subsequently heat-treated springs. The products are supplied in one of the heat-treatment conditions given for the different types of products in table 1, lines 2 to 6, and in one of the surface conditions given in table 2.

1.1 This European Standard applies to cold rolled narrow strip of thickness up to and including 3 mm in rolled widths less than 600 mm made from the stainless steel grades listed in table 1. The steels are currently used in the conditions given in table 4 for the production of springs and spring parts that are exposed to corrosive effects and sometimes slightly increased temperatures (see A.1).