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Performance characteristics EN 10080:2005 - Dimensions, mass and tolerances

Performance characteristics EN 10080:2005 - Dimensions, mass and tolerances

Diameters, cross-sectional area

The nominal diameters up to and including 10,0 mm shall be in half millimetres, and above 10,0 mm, shall be in whole millimetres.

Preferred nominal diameters, cross-sectional areas and masses per metre are given in Table below.

Mass per metre and tolerances

The values for the nominal mass per metre (see Table 6) are calculated from the values of the nominal cross- sectional area using a density value of 7,85 kg/dm3.

The permissible deviation from the nominal mass per metre shall not be more than ± 4,5 % on nominal diameters above 8,0 mm, and ± 6,0 % on nominal diameters 8,0 mm and below.

Length of bars

The nominal length of bars shall be agreed at the time of enquiry and order.

The permissible deviation from the nominal length shall be agreed at the time of enquiry and order.

Coil mass

The nominal coil mass shall be agreed at the time of enquiry and order.

Dimensions of welded fabric

Wire arrangement

General

The wires of a sheet shall be single wires and / or twin wires.

Relative diameters of wires

For single wire fabric, the nominal diameters of wires shall meet the following requirement

dmin. ≥ 0,6 dmax.

where

d max.  - the nominal diameter of the thickest wire, 

d min. - the nominal diameter of the crossing wire.

Other requirements may be agreed at the time of enquiry and order.

For welded fabric with twin wires in one direction, the nominal diameters of the wires shall meet the following requirement

0,7 ds ≤ dT ≤ 1,25 ds

where

ds - the nominal diameter of the single wires, 

dT - the nominal diameter of the twin wires.

Other requirements may be agreed at the time of enquiry and order.

Preferred pitch and overhang

The pitch of longitudinal wires and transverse wires shall not be less than 50 mm.

NOTE The overhang should not be less than 25 mm.

Dimensions and tolerances on dimensions

The nominal length, width, pitch and overhangs of welded fabric shall be agreed at the time of enquiry and order.

The permitted deviations for welded fabric are:

Length and width of the welded fabric	± 25 mm or ± 0,5 % whichever is greater
wire pitch	± 15 mm or ± 7,5 % whichever is greater
overhangs	to be agreed at the time of enquiry and order

Special tolerance requirements may be agreed between the manufacturer and the purchaser.

Dimensions of lattice girders

Configurations

Where wires are welded together, they shall meet the requirement that d min./d max . is greater than 0,3. If metal strips are welded to wires, the following limitation shall apply: t s ≥ 0,15 d where d is the nominal diameter of the diagonal and t  is the thickness of the metal strip.

Dimensions and tolerances on dimensions

The nominal length, height, width and pitch of lattice girders shall be agreed at the time of enquiry and order. Maximum manufacturing tolerances shall be as follows:

length (L)	± 40 mm if L ≤ 5,0 m ± 0,8 %, if L > 5,0 m
height ( H1, H2)	+1 mm -3 mm
width (B1, B2)	± 7,5 mm
pitch (Ps)	± 2,5 mm

maximum overhang: may be agreed at the time of enquiry and order.

Table — Preferred nominal diameters, cross-sectional areas and masses per metre

	Nominal diameter mm	Bars	Coils and De-coiled products	Welded fabric	Lattice girders	Nominal cross sectional area mm2	Nominal mass per metre kg/m
	4,0		X		X	12,6	0,099
	4,5		X		X	15,9	0,125
	5,0		X	X	X	19,6	0,154
	5,5		X	X	X	23,8	0,187
	6,0	X	X	X	X	28,3	0,222
	6,5		X	X	X	33,2	0,260
	7,0		X	X	X	38,5	0,302
	7,5		X	X	X	44,2	0,347
	8,0	X	X	X	X	50,3	0,395
	8,5		X	X	X	56,7	0,445
	9,0		X	X	X	63,6	0,499
	9,5		X	X	X	70,9	0,556
	10,0	X	X	X	X	78,5	0,617
	11,0		X	X	X	95,0	0,746
	12,0	X	X	X	X	113	0,888
	14,0	X	X	X	X	154	1,21
	16,0	X	X	X	X	201	1,58
	20,0	X				314	2,47
	25,0	X				491	3,85
	28,0	X				616	4,83
	32,0	X				804	6,31
	40,0	X				1257	9,86
	50,0	X				1963	15,4

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