Brass strip

Chemical Composition
Equivalents
Mechanical properties
Finishes
Tolerances

Designation		EN	Chemical composition in % (mm)
Symbolic	Numerical	EN	Min. Cu	Max. Cu	Max. Al	Max. Fe	Max. Ni	Min. Pb	Max. Pb	Max. Sn	Min. Zn	Others total max.
CuZn10	CW501L	EN 1652	89.0	91.0	0.02	0.05	0.3	-	0.05	0.1	Rest	0.1
CuZn15	CW502L	EN 1654 / EN 1652	84.0	86.0	0.02	0.05	0.3	-	0.05	0.1	Rest	0.1
CuZn30	CW505L	EN 1654 / EN 1652	69.0	71.0	0.02	0.05	0.3	-	0.05	0.1	Rest	0.1
CuZn33	CW506L	EN 1652	66.0	68.0	0.02	0.05	0.3	-	0.05	0.1	Rest	0.1
CuZn37	CW508L	EN 1652	62.0	64.0	0.05	0.1	0.3	-	0.1	0.1	Rest	0.1
CuZn38Pb2	CW608N	EN 1652	60.0	61.0	0.05	0.2	0.3	1.6	2.5	0.2	Rest	0.2
CuZn39Pb2	CW612N	EN 1652	69.0	60.0	0.05	0.3	0.3	1.6	2.5	0.3	Rest	0.2

NOTE / EN 1652 and EN 13599: The total of other elements, except Cu, is defined as the sum of the contents of Ag, As, Bi, Cd, Co, Cr, Fe, Mn, Ni, O, P, Pb, S, Sb, Se, Si, Sn, Te and Zn excluding any element for which a value is individually specified.

Designation		EN	Density ¹⁾ g/cm³
Symbolic	Numerical	EN	approx.
CuZn10	CW501L	EN 1652	8.8
CuZn15	CW502L	EN 1654 / EN 1652	8.8
CuZn30	CW505L	EN 1654 / EN 1652	8.5
CuZn33	CW506L	EN 1652	8.5
CuZn37	CW508L	EN 1652	8.4
CuZn38Pb2	CW608N	EN 1652	8.4
CuZn39Pb2	CW612N	EN 1652	8.4

1) For information purposes only.

BRASS STRIP: COMPOSITION AND DETAILS

FINISHES AND TYPES OF COATINGS

Brass strip is intended for industrial or decorative applications and is composed of a copper-zinc alloy and other metals. Brass is a recyclable material highly resistant to oxidation and corrosion.

In addition to the possibility of supplying bare brass strip, the roughness (s/EN 1654) and the surface condition (s/EN 13599) are included in the Standard and must be agreed between customer and distributor.

Metal strip made of copper alloys is supplied with two types of electrolytic and hot-dip tin coatings.

The options available for the electrolytic type coating (s/EN 14436) are as follows:

Matte electrolytic coating: the result is a standard finish of a traditional electrolytic bath.
Bright electrolytic coating: brighteners are applied to the bath which may be undesirable with respect to subsequent melting or soft soldering operations, or on the contrary, beneficial with respect to friction properties.
Electrolytic reflow polishing coating: this coating is achieved by heating the matte electrolytic coating above its melting point and then cooling it. It is not applied on strips larger than 5µm due to the risk of slipping, nor for coatings that are already bright.

In addition to this coating, VINCO offers you the hot coating: hot dip tin plating (s/EN 13148). In this case, the brass strip is covered with a tin layer that protects, depending on the µm range, from surface oxidation. This coating gives the product a decorative appearance, reduces frictional forces, increases the service life and supports soft soldering.The surface appearance can be bright or dull, or a combination of both without affecting the suitability of the product. If you have doubts about which coating is more suitable for your case, please contact us.

vinco-brass-strap

CAPACITIES AND SUPPLY OPTIONS FOR BRASS STRAPS

To determine the weight and dimensions of the coil, we have a weight calculator that takes into account the inside and outside diameter of the strip, based on the specific weight of the material. In the case of brass, regardless of the format in which it is delivered, it is 8.7 kg/dm³. In this way, you will have a more accurate data in reference to the weight.

The supply options available to us at VINCO fall into three main categories:

In Rolls with strapping: this type of packaging cordons off the strapping to provide greater stability when transporting the goods. Within this modality, the product can be supplied strapped by arrangement -radial or perimeter-, by material -plastic or metallic-, by coil arrangement (clockwise or counterclockwise), with separation between coils and with cardboard core.
The supply of spooled strapping takes advantage of the material giving uniformity to the strap with wooden, metallic, plastic or cardboard core reels.
The Helycoil format strap incorporates cardboard separators that group the product in the form of a roll or cookie.

In addition, the packaging and palletizing in which we can supply strapping comes in different types of pallets: square, round, custom-made or europallet.

All these supply options and types of packaging include protective elements to ensure that the product arrives in perfect condition: box, lid, intermediate cardboard or wooden blocks, corner protectors, dustproof plastic bag, paper and VCI damp-proof plastic, phytosanitary and maritime packaging and damp-proof bags.

			Approximate international equivalents
Symbolic	Numerical	EN	AMERICAN	JAPANESE	CHINESE
Symbolic	Numerical	EN	US	JIS	GB
CuZn10	CW501L	EN 1652
CuZn15	CW502L	EN 1654 / EN 1652
CuZn30	CW505L	EN 1654 / EN 1652
CuZn33	CW506L	EN 1652	C26800	C 2680	-
CuZn37	CW508L	EN 1652	C27400	C 2720	H62
CuZn38Pb2	CW608N	EN 1652
CuZn39Pb2	CW612N	EN 1652

MECHANICAL PROPERTIES EN 1652 / EN 1654 BRASS STRIP

Designations			Tensile strength Rm		Conventional yield strength at 0.2% Rp_0.2		Elongation ¹⁾		HV hardness
Designations			N/mm²		N/mm²		A₅₀mm for thicknesses up to 2.5 mm (inclusive) %	A₅₀mm for thicknesses above 2.5 mm %	HV hardness
Material		Metallurgical condition	min.	max.	min.	max.	A₅₀mm for thicknesses up to 2.5 mm (inclusive) %	A₅₀mm for thicknesses above 2.5 mm %	min.	max.
Symbolic	Numerical	Metallurgical condition	min.	max.	min.	max.	min.	min.	min.	max.
		R240	240	290	(max. 140)		36	45	-	-
		H050	-	-	-		-	-	50	80

CuZn10	CW501L	R280	280	360	(min. 200)		13	20	-	-
		H080	-	-			-	-	80	110

		R350	350	-	(min. 290)		4	8	-	-
		H110	-	-	-		-	-	110	-
		R260	260	310	(max. 170)		36	45	-	-
		H055	-	-	-	-	-	-	55	85

		R300	300	370	(min. 150)		16	25	-	-
		H085	-	-	-	-	-	-	85	115

		R350	350	420	(min. 250)		8	12	-	-
		H105	-	-	-	-	-	-	105	135
CuZn15	CW502L
		R410	410	490	(min. 360)		3	4	-	-
		H125	-	-	-	-	-	-	125	155

		R480	480	560	-	-	-	2	-	-
		H150	-	-	-	-	-	-	150	180

		R550	550	-	-	-	-	-	-	-
		H170	-	-	-	-	-	-	170	-
		R350	350	430	(min. 170)		21	25	-	-
		H095	-	-	-	-	-	-	95	125

		R410	410	490	-	-	9	12	-	-
		H120	-	-	-	-	-	-	120	155

CuZn30	CW505L	R480	480	560	-	-	4	6	-	-
		H150	-	-	-	-	-	-	150	180

		R550	550	640	-	-	-	2	-	-
		H170	-	-	-	-	-	-	170	200

		R630	630	-	-	-	-	-	-	-
		H190	-	-	-	-	-	-	190	-
		R280	280	380	(max. 170)		40	50	-	-
		H055	-	-	-		-	-	55	90

		R350	350	430	(min. 170)		23	31	-	-
		H095	-	-	-		-	-	95	125
CuZn33	CW506L
		R420	420	500	(min. 300)		6	13	-	-
		H125	-	-	-		-	-	126	155

		R500	500	-	(min. 450)		-	-	-	-
		H155	-	-	-		-	-	155	-
		R300	300	370	(max. 180)		38	46	-	-
		H055	-	-	-		-	-	55	95

		R350	350	440	(min. 170)		19	28	-	-
		H095	-	-	-		-	-	95	125

CuZn37	CW508L	R410	410	490	(min. 300)		8	12	-	-
		H120	-	-	-		-	-	120	155

		R480	480	560	(min.430)		3	-	-	-
		H150	-	-	-		-	-	150	180

		R550	550	-	(min. 500)		-	-	-	-
		H170	-	-	-		-	-	170	-
		R340	340	420	(max. 240)		33	43	-	-
		H075	-	-	-		-	-	75	110

		R400	400	480	(min. 200)		14	23	-	-
		H110	-	-	-		-	-	110	140
CuZn38Pb2	CW608N
		R470	470	550	(min. 390)		6	12	-	-
		H140	-	-	-		-	-	140	170

		R540	540	-	(min. 490)		-	-	-	-
		H165	-	-	-		-	-	165	-
		R360	360	440	(max. 270)		30	40	-	-
		H090	-	-	-		-	-	90	120

		R420	420	600	(min. 270)		12	20	-	-
		H120	-	-	-		-	-	120	150
CuZn39Pb2	CW612N
		R490	490	570	(min. 420)		-	9	-	-
		H150	-	-	-		-	-	150	180

		R560	560	-	(min. 510)		-	-	-	-
		H175	-	-	-		-	-	175	-

NOTE - The numbers in brackets are not standard requirements, they are given for information purposes only.
1) The values shown are for guidance purposes and are based on EN1652 and EN1654. For CuZn15 and CuZn30, the elongation values are in accordance with EN1652, thicknesses range from above 0.25mm to 1mm inclusive.

BARE MATERIAL

The strips must be clean and free of detrimental defects, which must be specified by agreement between the customer and the supplier when requesting the quote and in the order. Normally, a small residual layer of lubricant is left on cold-rolled products, which is authorised unless otherwise specified.

ROUGHNESS EN 1654

This must be agreed between the customer and the supplier when requesting the quote and confirming the order.

SURFACE CONDITION EN 13599

The strips must be clean and free of detrimental defects, which must be specified by agreement between the customer and the supplier in the request for quotes and in the order. Normally, a small residual layer of lubricant is left on cold-drawn products, and this is acceptable unless otherwise specified. Discolouration is acceptable, provided that it is not detrimental to the use of the product.

TIN COATINGS

Tin coatings for strips and copper strips and copper alloys:

Type of coating	Standard
Electrolytic	EN 14436
Hot dip	EN 13148

ELECTROLYTIC EN 14436

ELECTROLYTIC TIN PROCESS TYPES AND TYPES OF TIN COATINGS AND TIN ALLOYS EN 14436

Process	Description
Process for matt electrolytic coatings.	This is the standard finish of a traditional electrolytic bath.
Process for bright electrolytic coatings.	Coatings with a bright appearance are obtained using baths that contain one or more suitable brightening agents (brighteners). Their presence may not be desirable in subsequent melting or soft soldering processes. Furthermore, they may be beneficial for frictional properties (low friction or sliding contacts).
Process for flow-brightened electrolytic coatings.	Flow-brightened electrolytic coatings are obtained by heating a matt electrolytic coating above its melting point for a few seconds and then cooling it. The coatings preserve their sheen after cooling. In practice, flow brightening is not used for coatings with thicknesses above 5 μm (slip risk) or for coatings that are already bright.

NOTE - Tin electrolytic coatings may experience a spontaneous growth of metallic filaments (the combined effect of humidity and mechanical stresses, for example). This phenomenon is highly undesirable for electrotechnical applications (risk of short circuit). The risk of this occurring can be reduced by flow brightening, using tin-lead alloy coatings or inserting a suitable sublayer.

TYPES OF STEEL ELECTROLYTIC COATINGS AND TIN ALLOYS ACCORDING TO APPLICABLE EN 14436

Coating thickness μm		Types of coatings
min.	max.	Sn bright (Snb)	Sn matt (Snm)	Sn flow-brightened (Snf)
	1	As	N/A	As
0.8	1.2	As	N/A	*
1.5	2.5	B	As	B - R
2	4	B - C	R	B - R
3	6	B - C	R	N/A
5		B - C	R - C	N/A

NOTE 1: Applications:

N/A: not applicable
B: improves the suitability for soft soldering
*: reduces frictional forces
C: corrosion resistance
R: reduction of electrical resistance on a contact
As: improved appearance

NOTE 2: These typical values are for information purposes and can be replaced by agreement between the customer and the supplier.

COMPOSITION OF THE TIN AND TIN ALLOYS EN 14436

Type of coating	Designation of the material	Composition in % (mass fraction)
Type of coating	Designation of the material	Min. Sn	Others, total
Sn bright (Snb)	Sn99	99	Remainder
Sn matt (Snm) or Sn flow-brightened (Snf)	Sn99.50	99.5	Remainder

HOT DIP EN 13148

APPEARANCE EN 13148. HOT DIP TINNING

Thicknesses (average values) and preferred thickness ranges for coatings:

Thickness	Thickness range		Application
µm	µm
average value	from	up to & including
1.45	0.7	2.2	Preventing surface oxidation, decorative appearance, reducing frictional forces.
2	1	3	Preventing surface oxidation, decorative appearance, reducing frictional forces.
3.5	2	5	Preventing corrosion
5	3	7	Extending the useful life
7.5	5	10	To aid soft soldering
10	7	13	To aid soft soldering

The appearance depends on the type of liquid film cooling, the type of coating and the technique used to remove excess molten metal. The surface may have a bright or matt appearance, or a combination of both. The appearance of the coating does not affect its suitability. If there are special requirements for the appearance of the coating, these requirements must be agreed at the time of the quote and/or order.

THICKNESS TOLERANCES EN 13599 / EN 1652

Nominal thickness		Thickness tolerance for nominal widths according to EN 13599/ EN 1652
>	≤	10 < and ≤ 200		200 < and ≤ 350	350 < and ≤ 700	700 < and ≤ 1000	1000 < and ≤ 1250
>	≤	normal (Class A)	special (Class B)	200 < and ≤ 350	350 < and ≤ 700	700 < and ≤ 1000	1000 < and ≤ 1250
0.05¹⁾	0.1	± 10% ²⁾	-	-	-	-	-
0.1	0.2	± 0.010	± 0.007	± 0.015	-	-	-
0.2	0.3	± 0.015	± 0.010	± 0.020	± 0.03	± 0.04	-
0.3	0.4	± 0.018	± 0.012	± 0.022	± 0.04	± 0.05	± 0.07
0.4	0.5	± 0.020	± 0.015	± 0.025	± 0.05	± 0.06	± 0.08
0.5	0.8	± 0.025	± 0.018	± 0.030	± 0.06	± 0.07	± 0.09
0.8	1.2	± 0.030	± 0.022	± 0.040	± 0.07	± 0.09	± 0.10
1.2	1.8	± 0.035	± 0.028	± 0.06	± 0.08	± 0.10	± 0.11
1.8	2.5	± 0.045	± 0.035	± 0.07	± 0.09	± 0.11	± 0.13
2.5	3.2	± 0.055	± 0.040	± 0.08	± 0.10	± 0.13	± 0.17
3.2	4.0	-	-	± 0.10	± 0.12	± 0.15	± 0.20
4.0	5.0	-	-	± 0.12	± 0.14	± 0.17	± 0.23
5.0	6.0	-	-	± 0.14	± 0.16	± 0.20	± 0.26

Measurements in mm.
1) Including the value 0.05.
2) ± 10% of the nominal thickness

THICKNESS TOLERANCE FOR COATED MATERIAL

EN 13148. The thickness of the tinned strip must meet the required combination of tolerances for the thickness of the strip (table above) and the range of thicknesses of the coatings ordered, for both sides.

EN 14436. The thickness of the strip prior to tinning must be in accordance with the approximate tolerances given in the table above. The thickness tolerance of the tinned strip must take into account the minimum and maximum thicknesses of the coating.

WIDTH TOLERANCES OF THE STRIPS

Nominal thickness t		Standard slitting tolerances for VINCO ²⁾				Width tolerances for nominal widths according to EN 13599/ EN 1654
<	≤	3-15	15-50	50-150	>150	up to & including 50	over 50 and up to 100 inclusive	over 100 and up to 200 inclusive	over 200 and up to 350 inclusive	over 350 and up to 500 inclusive	over 500 and up to 700 inclusive	over 700 and up to 1250 inclusive
<	≤	3-15	15-50	50-150	>150	up to & including 50	over 50 and up to 100 inclusive	over 100 and up to 200 inclusive	over 200 and up to 350 inclusive	over 350 and up to 500 inclusive	over 500 and up to 700 inclusive	over 700 and up to 1250 inclusive	0,05	0,1	-	-	-	-	0;+0,2¹⁾	-	-	-	-	-	-
0,1	0,2	0;+0,15³⁾	0;+0,15³⁾	0;+0,15³⁾	0;+0,2³⁾	0;+0,2	0;+0,3	0;+0,4	0;+0,6	0;+1,0	0;+1,5	0;+2,0
0,2	0,4	0;+0,15	0;+0,15	0;+0,15	0;+0,2	0;+0,2	0;+0,3	0;+0,4	0;+0,6	0;+1,0	0;+1,5	0;+2,0
0,4	1	0;+0,17	0;+0,18	0;+0,2	0;+0,24	0;+0,2	0;+0,3	0;+0,4	0;+0,6	0;+1,0	0;+1,5	0;+2,0
1	1,5	0;+0,2	0;+0,2	0;+0,2	0;+0,3	0;+0,3	0;+0,4	0;+0,5	0;+1,0	0;+1,2	0;+1,5	0;+2,0
1,5	2	on request	0;+0,26	0;+0,3	0;+0,32	0;+0,3	0;+0,4	0;+0,5	0;+1,0	0;+1,2	0;+1,5	0;+2,0
2	2,5	on request	0;+0,26	0;+0,3	0;+0,32	0;+0,5	0;+0,6	0;+0,7	0;+1,2	0;+1,5	0;+2,0	0;+2,5
2,5	3	on request	on request	0;+0,32	0;+0,35	0;+1,0	0;+1,1	0;+1,2	0;+1,5	0;+2,0	0;+2,5	0;+3,0
3	5	on request	on request	0;+0,32	0;+0,35	0;+2,0	0;+2,3	0;+2,5	0;+3,0	0;+4,0	0;+5,0	0;+6,0

Measurements in mm.

1) Including the value t=0.05
2) Other, closer dimensional tolerances are possible under a commercial agreement .
3) Including the value t=0,1

LENGTH TOLERANCES 13599

Length tolerances of thick sheets, thin sheets and strips in cut lengths of up to 5000mm.

Length	Nominal thickness	Length tolerance
Without rolling (M)	up to & including 25	±50
Fixed length (F)	5 and above	0; +10
Fixed length (F)	over 5 and up to 10 inclusive	0; +15

Measurements in mm.

EDGE CAMBER TOLERANCES

Nominal width (W)	Edge curve tolerances under commercial agreement		Edge curve tolerances according to the EN 13599 Standard
	Maximum deviation 1000 mm Thickness (t)		Maximum deviation 1000 mm Thickness (t)


	t ≤ 1.20 mm	t > 1.20 mm	t ≤ 0.5 mm	0.5 < t ≤ 1.20 mm	1.20 < t ≤ 2.50 mm	2.50 < t ≤ 3.20 mm	3.20 < t ≤ 5.00 mm
3 ≤ W < 6	2.50	4.00	-	-	-	-	-
6 < W ≤ 10	2.00	3.00	-	-	-	-	-
10 < W ≤ 15	1.00	1.50	7.00 ¹⁾	10.00	-	-	-
15 < W ≤ 20	1.00	1.50	4.00	6.00	8.00	-	-
20 < W ≤ 30	0.50	1.00	4.00	6.00	8.00	-	-
30 < W ≤ 50	0.50	1.00	3.00	4.00	6.00	7.00	*under a commercial agreement
50 < W ≤ 350	0.50	1.00	2.00	3.00	4.00	5.00
350 < W ≤ 1250	-	-	2.00	3.00	4.00	5.00

Measurements in mm.
1) Including nominal width 10mm.

* The data contained in this catalogue are for information purposes only and are not under any circumstances, contractual supply conditions. Errors and omissions excepted.