Kovové materiály

Oblast zaměření: Ocel
Komise : ECISS/TC 103 (Structural steels other than reinforcements)
Původce: CEN
K připomínkám do: 1.10.2018
Zobraz více Zobraz méně
 

This part of this European standard specifies tolerances for hot finished circular, square, rectangular and elliptical structural hollow sections, manufactured in wall thicknesses up to 120 mm, in the following size ranges:

—    Circular: Outside diameters up to 2 500 mm;

—    Square: Outside dimensions up to 800 mm × 800 mm;

—    Rectangular: Outside dimensions up to 750 mm × 500 mm;

—    Elliptical: Outside dimensions up to 500 mm × 250 mm.

The formulae for calculating sectional properties of sections manufactured to the dimensional tolerances of this standard, to be used for the purposes of structural design, are given in Annex A.

Dimensions and sectional properties for a limited range covering the more common sizes are given in Annex B.

NOTE          The designation of the sections' major axis (yy) and its minor axis (zz) align with the axis designation used for structural design in the structural Eurocodes.

Oblast zaměření: Svařování
Komise : CEN/TC 121 (Welding and allied processes)
Původce: CEN
K připomínkám do: 1.10.2018
Zobraz více Zobraz méně
 

This document specifies the maximum external leakage rates which are acceptable for equipment used for welding, cutting and allied processes and provides the procedures of measurement.

It applies to individual components which are used in the gas supply to a blowpipe from the connecting point of the hose (outlet of the cylinder valve or connecting point to a gas supply plant). It does not apply to gas supply plant.

Oblast zaměření: Svařování
Komise : CEN/TC 121 (Welding and allied processes)
Původce:
K připomínkám do: 2.10.2018
Zobraz více Zobraz méně
 

This document specifies the sizes of test specimens and the test procedure for carrying out longitudinal tensile tests on cylindrical test specimens in order to determine the mechanical properties of weld metal in a fusion welded joint.

This document applies to metallic materials in all forms of product with joints made by any fusion welding process, having joint sizes that are sufficient to obtain cylindrical test specimens with dimensions in accordance with ISO 6892‑1.

Unless specified otherwise for specific points in this document, the general principles of ISO 6892‑1 apply.

Oblast zaměření: Kovové koroze
Komise : CEN/TC 219 (Cathodic protection)
Původce: CEN
K připomínkám do: 15.10.2018
Zobraz více Zobraz méně
 

This document specifies the requirements and recommendations for cathodic protection systems applied to the internal surfaces of metallic tanks, structures, equipment, and piping containing raw or treated seawater or brackish waters, to provide an efficient protection from corrosion.

Cathodic protection inside fresh water systems is excluded from this document. This is covered by EN 12499.

NOTE          EN 12499 covers internal cathodic protection for any kind of waters, including general aspects for seawater; but excluding industrial cooling water systems. This document specifically details applications in seawater and brackish waters.

Oblast zaměření: Ocel
Komise : ECISS/TC 103 (Structural steels other than reinforcements)
Původce: CEN
K připomínkám do: 15.10.2018
Zobraz více Zobraz méně
 

This document specifies tolerances for cold formed welded circular, square, rectangular and elliptical structural hollow sections, manufactured in wall thicknesses up to 40 mm, in the following size ranges:

—    circular: Outside diameters up to 2 500 mm;

—    square: Outside dimensions up to 500 mm × 500 mm;

—    rectangular: Outside dimensions up to 500 mm × 300 mm;

—    elliptical: Outside dimensions up to 480 mm × 240 mm.

The formulae for calculating sectional properties of sections manufactured to the dimensional tolerances of this standard, to be used for the purposes of structural design, are given in Annex A.

Dimensions and sectional properties for a limited range of more common sizes are given in Annex B.

NOTE          The designation of the sections' major axis (yy) and its minor axis (zz) align with the axis designation used for structural design in the structural Eurocodes.

Komise : ECISS/TC 111 (Steel castings and forgings)
Původce: CEN
K připomínkám do: 6.11.2018
Zobraz více Zobraz méně
 

This document specifies the technical delivery requirements for open die forgings, forged bars and products pre-forged and finished in ring rolling mills, manufactured from stainless steels with ferritic, martensitic, austenitic and austenitic-ferritic structures.

NOTE          The majority of steels listed in this part of EN 10250 are identical to steels specified EN 10088‑3 and more extensive information on properties is given in that European Standard.

General information on technical delivery conditions is given in EN 10021.