Specifications

Diameter:7.5-21.6mm
Tensile strength:1770-1860Mpa

It is used for Mine and Roadway,which makes an impact on supporting,especially,for the mine and rock area to increase firm,meanwhile,it play a good role on improving the security assurance.

Steel Strand Wire for pre-stressed Concrete
Specification	Section Area	Grease Mass Per Meter(g/m)	Minium thicknes of coating	Tensile Strength(Mpa)					Friction factor	Effect modulus	Mass per meter
				A	B	C	D	E
1*7(12.7mm)	98.7	43	1	1720	1860	1960			0.04-0.1	0.003-0.004	0.875
1*7(15.2mm)	140	50		1570	1670	1770	1860	1960			1.21
1*7(15.24mm)	140	50		1860							1.21
1*7(15.7mm)	150	50		1860							1.30

Steel Strand Wire for pre-stressed Concrete
Construction	Dn/mm	Tolerance	Section Area	Grease Mass Per Meter(g/m)	Tensile Strength(Mpa)	maximal load stretching of the steel strand	Fp0.2/KN	Agt/%	Nominal Pull%	Stress relaxation(%)
1*19	17.80	+0.60-0.25	208.4	1652	1860	387	330	3.5	70	2.5
	18.00		214.3	1678	1860	399	339
	19.30		243.7	1931	1860	453	385
	20.30		270.9	2149	1860	504	422
	21.80		312.9	2482	1770	554	471
					1810	566	481
					1860	582	495
	22.0		315.0	2473	1770	558	474
					1810	571	485
					1860	586	498
	28.60		532.4	4229	1670	889	756
					1770	942	800
					1810	964	819