Spiral Ribs High Carbon Steel Wire for Prestressed Concrete

• Material: Steel Wire
• Cross Sectional Shape: Round
• Application: Electric Pole
• Metal Wire Drawing: Cold Drawing
• Raw Material: High Carbon Steel
• Diameter: 3.5mm-9.4mm
• Model NO.: 3.0, 4.0, 4.8, 5.0, 6.0, 7.0, 7.5, 8.0, 9.0mm
• Relaxation: Low Relaxation
• Transport Package: Export Packing
• Specification: dia. 3mm - 12mm
• Trademark: DaQiang
• Origin: Tianjin, China
• HS Code: 72171000
• Production Capacity: 2000 Ton/Month

Product Description

Spiral Ribs High Carbon Steel Wire for Prestressed Concrete
Diameter: 3.5mm, 4.0mm, 4.8mm, 5.0mm, 6.0mm, 7.0mm, 7.5mm, 8.0mm, 9.0mm, 9.4mm
Raw Material: high carbon steel wire rod SWRH77B, SWRH82B and other grade. 
Standard: ASTMA421, AS/NZS4672, BS5896, EN10138-2, GB/T5223, JISG3536, NBR7482
Surface: plain/smooth, spiral/helical ribs, indent
Tensile Strength: 1570Mpa, 1670Mpa, 1770Mpa etc. 
Relaxation on 1000 hours: 2.0% max
Elongation at breakage: 4.0% min
Export Packing: baling strip, inside plastic cover, outside PP packing cloth
Package Weight: 800kg-1600kg
Application: cement concrete poles, piles, beams, girders, slabs, double-T board, hollow floor board, PHC, PPCP, railway sleeper, subway track board. 




 

The specifications and technical parameters
Nominal Dia  (dn/mm)	Tolerance	Tensile Strength  σb/MPA Not less than	Yield Stength  (σp0.2/MPA) Not less than	Elongation at max load  (Lo=200mm) δgt/% Not less than	Bending Times Not less than	Bending Radius  R/mm	Relaxation Priperties
							The relaxation at 1000h  (initial load to 70% of nominal tensile strength ) (r%)  Not more than
4.8	±0.05	1470 1570 1670 1770 1860	1290 1380 1470 1560 1640	3.5	4	15	2.0
5.0
6.0	±0.05	1470 1570 1670 1770	1290 1380 1470 1560		4	15
6.25
7.0						20
8.0	±0.06	1470 1570	1290 1380		4	20
9.0						25