EN 1172-2011 pdf download.Copper and copper alloys – Sheet and strip for building purposes.
4.1.3 Number
The material number designation is in accordance with the system given in EN 1412.
4.2 Material condition
For the purposes of this standard, the following designations, which are in accordance with the system given in EN 1173. apply for the material condition:
— R… Material condition designated by the minimum value of tensile strength requirement for the product with mandatory tensile strength, 0,2 % proof strength and elongation requirements:
— H… Material condition designated by the minimum value of hardness requirement for the product with mandatory hardness requirements.
Exact conversion between material conditions designated R… and H… is not possible. Material condition is designated by only one of the above designations.
4.3 Product
The product designation provides a standardized pattern of designation from which a rapid and unequivocal description of a product is conveyed In communication. It provides mutual comprehension at the international level with regard to products which meet the requirements of the relevant European Standard.
The product designation is no substitute for the full content of the standard. The product designation for products to this standard shall consist of:
a) denomination (Sheet or Strip):
b) number of this European Standard (EN 1172):
c) material designation, either symbol or number (see Table 1); d) material condition designation (see Table 2);
e) nominal dimensions:
1) sheet: thickness x width x length (see Example 1);
2) strip: thickness x width (see Example 2).
5 Ordering information
In order to facilitate the enquiry, order and confirmation of order procedures between the purchaser and the supplier, the purchaser shall state on his enquiry and order the following infomiation:
a) quantity of material required:
1) sheet: number of pieces or mass;
2) strip: mass or length; b) denomination (Sheet or Strip):
C) number of this European Standard (EN 1172);
d) material designation (see Table 1);
e) material condition designation (see 4.2 and Table 2);
f) nominal dimensions (see Table 3):
1) sheet: thickness x width x length:
2) strip: thickness x width; g) coil inside diameter (see Table 3).
NOTE It is recommended that the product designation as described in 43 is used for items b) to 1). In addition, the purchaser shall also state on the enquiry and order any of the following, if required:
6 Requirements
6.1 Composition
The composition shall conform to the requirements for the appropriate material given in Table 1.
6.2 Mechanical properties
The mechanical properties (tensile strength, 0,2 % proof strength. elongation and Vickers hardness) shall conform
to the appropriate requirements given in Table 2. The tests shall be carried out in accordance with 8.2 and 8.3.
6.3 Surface quality
The surface quality of sheet and strip shall be consistent with the manufacturing process, i.e. smooth, clean and free from marked discoloration. Surface irregularities, such as striations in the direction of rolling, marks which have been rolled over, minor scratches, flaking, abrasion marks or residues of coolants and lubricants are permitted unless they impair workability and serviceability.
For special applications, (e.g. where sheet or strip is intended for use as external wall cladding (facade quality)), the requirements to be met by the surface quality shall be agreed between the purchaser and the supplier at the time of enquiry and order.
6.4 Dimensions and tolerances
6.4.1 Thickness, width, length and coil Inside diameter
The standardised nominal thicknesses, widths. lengths and coil inside diameters available are given in Table 3.
Thickness, width and length shall conform to the dimensional tolerances given in Table 3.
6.4.2 Straightness of longitudinal edges (edgewise curvature)
6.4.2.1 General
The tolerances on straightness of longitudinal edges are given in 6.4.2.2 and 6.4.2.3.
For special applications [e.g. where sheet or strip is intended for use as external wall cladding (facade quality)J, the straightness requirements shall be agreed between the purchaser and the supplier.
6.4.2.2 Sheet
For sheet up to and including 3 000 mm length, the tolerance on straightness of longitudinal edges shall be not
more than 1 mm per 1 000 mm gauge length, nor more than 3 mm for a gauge length of 3 000 mm,
6.4.2.3 Strip
The straightness tolerance of the longitudinal edges shall be not more than 1 mm per 1 000 mm gauge length, nor more than 5 mm for a gauge length of 5 000 mm.
6.4.3 Flatness
The flatness shall conform to the tolerances given in Table 4, except for material conditions R220 or H040.
Strip need not meet any requirements for flatness in the direction of rolling, since, when unrolled after reeling, there is always some residual curvature.
For special applications, (e.g. where sheet or strip is intended for use as external wall cladding (facade quality)). the flatness requirements shall be agreed between the purchaser and the supplier.
6.4.4 Squareness of sheet
The squareness shall conform to the tolerances given in Table 5.
6.5 Mass per unit length
The mass per unit length shall be calculated from the nominal sizes of the sheet or strip and from the density of the material given In Table 1.
NOTE Values for mass per unit length are given in Table 3 for informabon only. Deviation from these values can result from tolerances on nominal sizes and variation of density which is dependent on the compositn of the material.
7 Sampling
7.1 Analysis
Sampling, selection of test samples and preparation of test pieces shall be in accordance with ISO 181 1-2.EN 1172-2011 pdf download.