Spiral Ribbed Steel Wire 7mm for Concrete Pole

• Certification: ISO
• Surface: Spiral
• Technique: Drawn Wire
• Application: Manufacturing, Construction
• Alloy or Not: Non-alloy
• Standard: BS, JIS, GB, ASTM
• Model NO.: 4.8mm 7.0mm
• Transport Package: Export Packing
• Specification: 4.8mm 7.0mm
• Trademark: Qiangbang
• Origin: Tianjin, China

Product Description

Spiral Ribbed Steel wire 7mm for Concrete Pole 

Description: steel wire for pre-stressed concrete, pre-stressing steel wire, high carbon steel wire for pre-tensioning, high tensile low relaxation steel wire, stress-relieved steel wire
Diameter: 3mm, 3.2mm, 3.4mm, 3.8mm, 4mm, 4.8mm, 5mm, 6mm, 7mm, 7.5mm, 8mm, 9mm, 9.4mm, 10mm
Raw Material: high carbon steel wire rod SWRH77B, SWRH82B and other grade.
Standard: ASTMA421, AS/NZS4672, ABNT NBR7482, BS5896-1980, EN10138-2, GB/T5223, JIS G3536, KSD 7002
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 electricity poles, railway sleeper, subway track board, concrete piles, beams, girders, slabs, hollow floor board, double-T board, PHC, PPCP.

Technical Specifications and Parameters
Diameter (mm)	Tolerance (mm)	Tensile Strength Min (MPA)	Yield Strength Min (σp0.2/MPA)	Elongation at breaking load (Lo=200mm) Min (%)	Bending Times Min	Bending Radius R/mm	Relaxation Value
							The relaxation at 1000h (Initial load to 70% of breaking load) Max (%)
3.5	±0.05	1470 1570 1670 1770 1860	1290 1380 1470 1560 1640	3.5	4	15	2.0
4.0
4.8
5.0
6.0	±0.05	1470 1570 1670 1770	1290 1380 1470 1560		4	15
7.0						20
7.5
8.0	±0.06	1470 1570 1670	1290 1380 1470		4	20
9.0						25