Low relaxation ASTM 416 PC steel wire strand

1).used for bridge or big-span buildings 2).ASTM A416,BS,JIS 3)1860Mpa, high tension strength 4)12.7,15.24,17.8mm

The main features of PC steel strand are high strength and good relaxation(low relaxation or normal relaxation), being quite straight while streching.

Standard: ASTM A416 ,GB/T 5224,GB/T5223(China);,ASTMA421(USA);BS 5896(UN);JIS G3536(Japan);AS/NZS 4672(Australia);NBR-7483(Brazil);EN10138(Europe);ISO934

WE can aslo offer PC wire and strand conforming to the technical standards agreed by both the consumer and us.

Application :    At many projects of posttension and pretension prestress,smooth steel strand is the most popular steel. The compact steel strand is mostly used for lifting projects and some like nuclear power engineering.Galvanized strand usually applies to bridge tie bar ,digging line and  external prestressed programmes.The usage of epoxy coated strand is almost alike to that of gavanized strand.

Grade	Norminal dia.(mm)	tolerance(mm)	Cross section area(Sn/mm2)	Re.mass per 1000m(kg/1000m)	Minimum Breaking Load	Min Load at 1% Extension(KN)	Lo≥610mm(%)	the relaxation at 1000h)Initial to 70%of nominal max load)(r/%)
								low-relaxation	normal relaxtion
250{1725}	9.53	±0.40	51.61	405	89	80.1	3.5	2.5	3.5
	11.11		69.68	548	120.1	108.1
	12.7		92.9	730	160.1	144.1
	15.24		139.35	1094	240.2	216.2
270{1860}	9.53	+0.65-0.15	54.84	432	102.3	92.1	3.5	2.5	3.5
	11.11		74.19	582	137.9	124.1
	12.7		98.71	775	183.7	165.1
	15.24		140	1102	260.7