Product Details

Specifications

1.70#/72B/80#/82B steel wire
2.Material:EN10138,ASTMA416,ASTMA882,AS/NZS4672,KS7002,SS21362 and etc.

7 wire prestressed concrete steel wire

Features & Appliactions:

1. The main characteristics of prestressed steel strand and relaxation properties of high strength is good, other than the upright when expanded. Common tensile strength rating of 1860 MPa, as well as 1720,1770,1960,2000,2100 MPa strength grade of the class.

2. The product is mainly used as auxiliary reinforcing strand for concrete structure,such as long spanned bridge's on railway and highway,overhead crane construction,multi-floor industrial building etc.

1.Production details:

(1).Technical Specification:

1*7 PC steel strand 's measure,tolerance and re.mass per meter<GB/T5224-2003>

Steel strand structure	Nominal Dia Dn/mm	Diameter tolerance /mm	Cross section area Sn/mm²	Re.mass per meter/(g/m)	Range(extened)% of core wire’s diameter min
1*7	9.50	+0.30 -0.15	54.8	430	2.5
	11.10	+0.30 -0.15	74.2	582
	12.70	+0.40 -0.20	98.7	775
	15.20		140	1101
	15.70		150	1178
	17.80		191	1500
(1*7) C	12.70	+0.40 -0.20	112	890
	15.20		165	1295
	18.00		223	1750

Technical Data of Uncoated Seven-Wire PC Strand under ASTM A416-1998 & ASTM A416-2002 Standard

Grade	Nominal Diameter of Strand	Tolerance of Diameter	Minimum Breaking Strength of Strand	Minimum Load at 1% Extension (Yield Strength)	Minimum Elongation (Gauge Length 610mm/24inch min)	Nominal Area of Strand	Nominal Weight of Strand (approx)	Maximum Relaxation Loss after 1000 hours
Grade	Nominal Diameter of Strand	Tolerance of Diameter	Minimum Breaking Strength of Strand	Minimum Load at 1% Extension (Yield Strength)	Minimum Elongation (Gauge Length 610mm/24inch min)	Nominal Area of Strand	Nominal Weight of Strand (approx)	Initial Load 70%	Initial Load 80%
Ksi (Mpa)	mm (in)	mm (in)	KN (lbf)	KN (lbf)	%	mm² (in²)	kg/1000m (lb/1000ft)	%
250 (1725)	9.53 (3/8 - 0.375)	+/-0.40 (+/-0.016)	89.0 (20000)	80.1 (18000)	3.5	51.61 (0.080)	405 (272)	2.5	3.5
	11.11 (7/16 - 0.438)		120.1 (27000)	108.1 (24300)		69.68 (0.108)	548 (367)
	12.70 (1/2 - 0.500)		160.1 (36000)	144.1 (32400)		92.90 (0.144)	730 (490)
	15.24 (6/10 - 0.600)		240.2 (54000)	216.2 (48600)		139.35 (0.216)	1094 (737)
270 (1860)	9.53 (3/8 - 0.375)	+0.65/-0.15 (+0.026/-0.006)	102.3 (23000)	92.1 (20700)	3.5	54.84 (0.085)	432 (290)	2.5	3.5
	11.11 (7/16 - 0.438)		137.9 (31000)	124.1 (27900)		74.19 (0.115)	582 (390)
	12.70 (1/2 - 0.500)		183.7 (41300)	165.3 (37170)		98.71 (0.153)	775 (520)
	15.24 (0.6 - 0.600)		260.7 (58600)	234.6 (52740)		140.00 (0.217)	1102 (740)

2.Other Similar Items:

(1) 1*2 PC steel strand 's measure,tolerance and re.mass per meter

Steel strand structure	Nominal Dia Dn/mm		Diameter tolerance /mm	Cross section area Sn/mm²	Re.mass per meter/(g/m)
1*2	Steel strand diameter Dn/mm	Wire diameter Dn/mm	Diameter tolerance /mm	Cross section area Sn/mm²	Re.mass per meter/(g/m)
	5.00	2.50	+0.15 -0.05	9.8	77.1
	5.80	2.90	+0.15 -0.05	13.2	104
	8.00	4.00	+0.25 -0.10	25.1	197
	10.00	5.00		39.3	309
	12.00	6.00		56.5	444

(2) 1*3 PC steel strand 's measure,tolerance and re.mass per meter<GB/T5224-2003>

Steel strand structure	Nominal Dia Dn/mm		Steel strand measurement A/mm	Measurement A Tolerance/mm	Cross section area Sn/mm²	Re.mass per meter/(g/m)
1*3	Steel strand diameter Dn/mm	Wire diameter Dn/mm	Steel strand measurement A/mm	Measurement A Tolerance/mm	Cross section area Sn/mm²	Re.mass per meter/(g/m)
	6.20	2.90	5.41	+0.15 -0.05	19.8	155
	6.50	3.00	5.60	+0.15 -0.05	21.2	166
	8.60	4.00	7.46	+0.20 -0.10	37.7	296
	8.74	4.05	7.56		38.6	303
	10.80	5.00	9.33		58.9	462
	12.90	6.00	11.2		84.8	666
1*31	8.74	4.05	7.56		38.6	303