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1X 7 low relaxation pc strand 7 wire pc steel strand
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Product Details
| Steel Grade | EN 10138,ASTM A416,ASTM A882,AS/NZS4672,KS7002,SS213620,JISG3536 | Standard | AISI, ASTM, DIN, GB, JIS | |
| Wire Gauge | 8mm~21.6mm | Place of Origin | Tianjin, China | |
| Type | Drawn Wire | Application | Construction | |
| Alloy Or Not | Non-alloy | Special Use | Cold Heading Steel | |
| Model Number | 1*7 | Brand Name | SST |
Product Description
low relaxation 7 wire pc strand
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 | 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 | Minimum Elongation | Nominal Area of Strand | Nominal Weight of Strand (approx) | Maximum Relaxation Loss after 1000 hours | |
Initial Load | Initial Load | ||||||||
Ksi | mm | mm | KN | KN | % | mm2 | kg/1000m | % | |
250 | 9.53 | +/-0.40 | 89.0 | 80.1 | 3.5 | 51.61 | 405 | 2.5 | 3.5 |
11.11 | 120.1 | 108.1 | 69.68 | 548 | |||||
12.70 | 160.1 | 144.1 | 92.90 | 730 | |||||
15.24 | 240.2 | 216.2 | 139.35 | 1094 | |||||
270 | 9.53 | +0.65/-0.15 | 102.3 | 92.1 | 3.5 | 54.84 | 432 | 2.5 | 3.5 |
11.11 | 137.9 | 124.1 | 74.19 | 582 | |||||
12.70 | 183.7 | 165.3 | 98.71 | 775 | |||||
15.24 | 260.7 | 234.6 | 140.00 | 1102 | |||||
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 | |||
5.00 | 2.50 | +0.15 -0.05 | 9.8 | 77.1 | |
5.80 | 2.90 | 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 | ||||
6.20 | 2.90 | 5.41 | +0.15 -0.05 | 19.8 | 155 | |
6.50 | 3.00 | 5.60 | 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 | |
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