Galvanized Steel Strand

Galvanized Steel Wire can be supplied in single wire or in seven strands.galvanized layer is strong corrosion-resistance bright and firm.standard:ASTM B498,ASTM B475,BS EN 50189 and BS4565.widely used in hangers, suspensions, communication wires,etc.

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Product Details

Product Overview

Application

galvanized stay wire serve the construction of power and power grids and their retrofits. They are widely used in hangers, suspensions, communication wires, overhead power lines, cable steel cores and fixed objects.

Product Description

It is used in bridge, construction, water conservancy, energy and geotechnical engineering.

Unbonded prestressed steel strand is often used in floor and foundation engineering.

The Strand size:7×(1.44-4.2 mm),19×(1.44-3.5mm).

Surface:Smooth zinc coating galvanizing

standard: ASTM B498-2008,ASTM A 475-2003,BS EN 50189-2000 and BS 4565

Packaging

Related Specification

ASTM B 498-2008

Wire diameter	Permissible Variation	Adherence Test	Stress at 1% Extension	Tensile strength	Elongation in 250mm	Zinc coating Class A
mm	mm	Ration of Mandrel D to Wire D (Dia)	Class A MPa（min）	Class A MPa（min）	Class A %（min）	mm	g/ m²
						1.60 to 1.90	198
1.60 to 2.30	+0.04/-0.03	3	1310	1450	3.0	over 1.90 to 2.30	214
over 2.30 to 3.05	+0.05/-0.05	4	1280	1410	3.5	over 2.30 to 2.70	230
over 3.05 to 3.60	+0.08/-0.05	5	1240	1410	4.0	over 2.70 to 3.10	244
over 3.60 to 4.80	+0.10/-0.08	5	1170	1380	4.0	over 3.10 to 3.50	260
						over 3.50 to 3.90	270
						over 3.90 to 4.50	275
						over 4.50 to 4.80	305

ASTM A 475-2003

Nominal Diameter of Strand. Inch (mm)	Number of Wires in Strand	Nominal Diameter of Coated Wires in Strand. (mm)	Approximate Weight of Strand(kg/Km)	Minimum Breaking Strength of Strand (KN)
				Utilities Grade	Common Grade	Siemens Martin Grade	High Strength Grade	Extra High Strength Grade
3/16 (4.76)	7	1.57	109	-----	5.115	8.452	12.677	17.748
7/32 (5.56)	3	2.64	131	-----	6.228	10.409	15.569	21.796
7/32 (5.56)	7	1.83	146	------	6.850	11.387	17.126	24.020
1/4 (6.35)	7	2.03	180	------	8.452	14.012	21.129	29.581
9/32 (7.14)	7	2.36	244	20.462	11.432	18.905	28.469	39.812
5/16 (7.94)	7	2.64	305	-----	14.234	23.798	35.586	49.820
3/8 (9.52)	7	3.05	407	51.155	18.905	30.915	48.040	68.503
7/16 (11.11)	7	3.68	595	80.068	25.355	41.591	64.499	92.523
1/2 (12.70)	7	4.19	770	111.206	32.917	53.823	83.627	119.657
1/2 (12.70)	19	2.54	751	------	33.895	56.492	84.961	118.768
9/16 (14.29)	19	2.87	949	-------	42.881	71.616	107.202	149.905
5/8 (15.88)	19	3.18	1186	-------	48.930	80.513	124.995	178.819
3/4 (19.05)	19	3.81	1155	-------	71.172	116.643	181.487	259.331

BS EN 50189-2000(For ST1A)

Nominal wire diameter mm		tolerance	Stress at 1% extension	Tensile strength	Elongation on 250mm	Wrapping test	No of torsion twists	Zinc Coating Class A
over	Up to and including	mm	N/mm²	N/mm²	%			Min mass of Zn	Min No. of one minute dips
			min	min	Min	*D	Min	g/ m²
1.57	1.75	±0.3	1170	1400	3.0	1	18	200	2
1.75	2.25	±0.3	1170	1400	3.0	1	18	215	2.5
2.25	2.75	±0.4	1140	1350	3.0	1	16	230	2.5
2.75	3.00	±0.5	1140	1350	3.5	1	16	230	3
3.00	3.50	±0.5	1110	1300	3.5	1	14	245	3.5
3.50	4.25	±0.6	1110	1300	4.0	1	12	260	3.5
4.25	4.75	±0.6	1110	1300	4.0	1	12	275	4