Field of Application

Prestressed concrete strands are a commonly used high-strength material in engineering. Their core advantages are high strength, low relaxation, corrosion resistance, and convenient construction. They are mainly used in large bridges, long-span buildings, precast components, and heavy-duty structures, and can effectively improve crack resistance, stiffness, and durability.

Y1670S7 1.136 4

DIA.	Tensile strength	steel area	Approx. length mass	FM	FM.max	0.1% proof load
mm	MPa	mm²	kg/1km	kN	kN	kN
15.2	1670	139	1086	232	267	204

Y1770S7G 1.137 0

DIA.	Tensile strength	steel area	Approx. length mass	FM	FM.max	0.1% proof load
mm	MPa	mm²	kg/1km	kN	kN	kN
18.0	1770	223	1742	379	436	334

Y1770S7 1.136 5

DIA.	Tensile strength	steel area	Approx. length mass	FM	FM.max	0.1% proof load
mm	MPa	mm²	kg/1km	kN	kN	kN
6.0	1770	29.0	227	51.3	59.0	45.1
9.0	1770	50.0	391	88.5	102	77.9
9.3	1770	52.0	406.1	92.0	106	81.0
9.6	1770	55.0	429.6	97.4	112	85.7
11.0	1770	70.0	546.7	124	143	109
12.5	1770	93.0	726.3	165	190	145
12.9	1770	100	781.0	177	204	156
15.2	1770	139	1086.0	246	283	216
15.3	1770	140	1093.0	248	285	218
15.7	1770	150	1172.0	266	306	234
18.0	1770	200	1562.0	354	407	312

Y1820S7G 1.137 1

DIA.	Tensile strength	steel area	Approx. length mass	FM	FM.max	0.1% proof load
mm	MPa	mm²	kg/1km	kN	kN	kN
15.2	1820	165	1289	300	345	264

Y1860S7 1.136 6

DIA.	Tensile strength	steel area	Approx. length mass	FM	FM.max	0.1% proof load
mm	MPa	mm²	kg/1km	kN	kN	kN
6.9	1860	29.0	226.5	53.9	62.0	47.4
7.0	1860	30.0	234.3	55.8	64.2	49.1
8.0	1860	38.0	296.8	70.7	81.3	62.2
9.0	1860	50.0	390.5	93.0	107	81.8
9.3	1860	52.0	406.1	96.7	111	85.1
9.6	1860	55.0	429.6	102	117	89.8
11.0	1860	70.0	546.7	130	150	114
11.3	1860	75.0	585.8	140	161	123
12.5	1860	93.0	726.3	173	199	152
12.9	1860	100	781.0	186	214	164
13.0	1860	102	796.6	190	219	167
15.2	1860	139	1086.0	259	298	228
15.3	1860	140	1093.0	260	299	229
15.7	1860	150	1172.0	279	321	246

Y1860S7G 1.137 2

DIA.	Tensile strength	steel area	Approx. length mass	FM	FM.max	0.1% proof load
mm	MPa	mm²	kg/1km	kN	kN	kN
12.7	1860	112	874.7	208	239	183
15.2	1860	165	1289	307	353	270

Y1960S7 1.136 7

DIA.	Tensile strength	steel area	Approx. length mass	FM	FM.max	0.1% proof load
mm	MPa	mm²	kg/1km	kN	kN	kN
9.0	1960	50.0	390.5	98.0	113	87.2
9.3	1960	52.0	406.1	102	117	90.8
9.6	1960	55.0	429.6	108	124	96.1
11.0	1960	70.0	546.7	137	158	122
11.3	1960	75.0	585.8	147	169	131
12.5	1960	93.0	726.3	182	209	162.0
12.9	1960	100	781.0	196	225	174
13.0	1960	102	796.6	200	230	178
15.2	1960	139	1086	272	313	242
15.3	1960	140	1093	274	315	244
15.7	1960	150	1172	294	339	262

Y2060S7 1.136 8

DIA.	Tensile strength	steel area	Approx. length mass	FM	FM.max	0.1% proof load
mm	MPa	mm²	kg/1km	kN	kN	kN
6.4	2060	25.0	195.3	51.5	59.2	45.8
6.9	2060	28.2	220.2	58.1	66.8	51.7
7.0	2060	30.0	234.3	61.8	71.1	55.0
8.6	2060	45.0	351.5	92.7	107	82.5
11.3	2060	75.0	585.8	155	178	138
12.5	2060	93.0	726.3	192	221	171
12.9	2060	100	781.0	206	237	183

Y2160S7 1.136.9

DIA.	Tensile strength	steel area	Approx. length mass	FM	FM.max	0.1% proof load
mm	MPa	mm²	kg/1km	kN	kN	kN
6.85	2160	28.2	220.0	60.9	70.0	54.2

Max.relaxation after 1,000 hours

Initial force in percent of Min. breaking strength	Relax
%	%
70	2.5
80	3.5