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galvanized steel wire strand. 7x0.33mm used for optical cable

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Nanjing Suntay Steel Co.,Ltd

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galvanized steel wire strand. 7x0.33mm used for optical cable

Model Number : 7x0.33mm

Certification : ISO9001

Place of Origin : JIANGSU,CHINA

MOQ : 5tons

Price : discuss

Supply Ability : 300000tons/year

Delivery Time : 5-15 days

Packaging Details : standard export packing

Material : galvanized steel wire

galvanized : hot-dipped

structure : 1x7

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Galvanized Steel Strands for Optical Fiber Cables

1.Product Introduction

(A)The galvanized steel strands for optical fiber cables are made of high-quality carbon steel wire rods through a series of processes such as heat treatment, peeling, water washing, pickling, water washing, solvent treatment, drying, hot-dip galvanizing, post-treatment, and wire drawing into the steel wires, and then twisted into stranded products.
The galvanized steel strand for optical cable is one of the basic components used in the Fig-8 self-support optical fiber cables for communication. As the suspension wire component in the optical cable, it can bear the weight of the optical cable and the external load in the optical cable, and can protect the optical fiber be free from bending and stretching, ensuring the normal communication of the optical fiber, and stabilizing the quality of the optical cable.

(B)The galvanized steel strands for optical fiber cables have the following characteristics:
1) The surface of galvanized steel wires in the galvanized steel strands have no defects such as overlap marks, scratches, breaks, flattening and hard bends;
2) The zinc layer is uniform, continuous, bright and does not fall off;
3) The surface of the galvanized steel strands is smooth, clean, free of oil, pollution, water and other impurities;
4) The appearance is round with stable size, high tensile strength and large elastic modulus.

2.Application

It is suitable for communication suspension wire unit of Fig-8 self-support optical fiber cables for outdoor telecommunications.

3.Characteristics

Structure	Nominal diameter of single steel wire (mm)	Nominal diameter of the stranded wire (mm)	Min. tensile strength of single steel wire (MPa)	Min. breaking force of steel strands (kN)	Elastic modulus of steel strand (Gpa)	Min. weight of zinc coating (g/m2)
1X7	0.33	1.00	1770	0.98	≥170	5
	0.40	1.20	1770	1.43		5
	0.60	1.80	1670	3.04		5
	0.80	2.40	1670	5.41		10
	0.90	2.70	1670	6.84		10
	1.00	3.00	1570	7.99		20
	1.20	3.60	1570	11.44		20
	1.40	4.20	1570	15.57		20
	1.60	4.80	1470	19.02		20
	1.80	5.40	1470	24.09		20
	2.00	6.00	1370	27.72		20
Note: In addition to the specifications in the above table, we can also provide galvanized steel strands with other specifications and different zinc content according to customers' requirements.

Code Name	Section	Stranding		Overall Diameter	Conductor Weight	Breaking Load
	mm2	No.	Φmm	mm	kg/km	kN
	mm2	No.	Φmm	mm	kg/km	kN
Grade 1150
7/24 SWG	1.72	7	0.56	1.7	14	1.98
7/22 SWG	2.77	7	0.71	2.1	28	3.19
7/21 SWG	3.97	7	0.85	2.6	31	4.57
7/20 SWG	4.45	7	0.90	2.7	35	5.12
7/19 SWG	5.50	7	1.00	3.0	43	6.32
7/18 SWG	8.59	7	1.25	3.8	67	9.88
7/17 SWG	10.78	7	1.40	4.2	84	12.35
7/16 SWG	14.07	7	1.60	4.8	110	16.20
7/15 SWG	17.81	7	1.80	5.4	140	20.50
7/14 SWG	21.99	7	2.00	6.0	170	25.30
7/13 SWG	30.62	7	2.36	7.1	240	35.20
7/12 SWG	38.61	7	2.65	8.0	300	44.40
7/11 SWG	49.48	7	3.00	9.0	392	56.90
-	54.55	7	3.15	9.5	430	62.75
7/10 SWG	58.07	7	3.25	9.8	460	66.80
7/9 SWG	73.24	7	3.65	11.0	570	84.20
7/8 SWG	87.96	7	4.00	12.0	690	101.00
7/7 SWG	99.30	7	4.25	12.8	780	114.00
7/6 SWG	124.04	7	4.75	14.0	970	142.70
19/19 SWG	14.92	19	1.00	5.0	120	17.16
19/18 SWG	23.32	19	1.25	6.3	180	26.81
19/17 SWG	29.25	19	1.40	7.0	230	33.64
19/16 SWG	38.20	19	1.60	8.0	300	43.93
19/14 SWG	59.69	19	2.00	10.0	470	68.64
-	93.27	19	2.50	12.5	730	107.30
19/11 SWG	134.30	19	3.00	15.0	1050	154.50
-	188.06	19	3.55	17.8	1470	216.30
19/8 SWG	238.76	19	4.00	20.0	1870	274.60
-	336.69	19	4.75	23.8	2630	387.20

galvanized steel wire strand. 7x0.33mm used for optical cable

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