77b Spiral Ribbed PC Steel Wire

• Customization: Available
• Material: Steel Wire
• Cross Sectional Shape: Round
• Model NO.: 4.0 4.8 5.0 7.0
• Application: Poles
• Type: Steel Coil
• Wide in Width: 2.1M
• Surface Treatment: Black
• Metal Wire Drawing: Cold Drawing
• Status: Hard State
• Thickness: Metal Thick Wire
• Category: Smooth Plain, Spiral Ribs, Indented, Crimped
• Astma421: 4.88mm, 4.98mm, 6.35mm, 7.01mm
• BS5896-1980: 4mm, 4.5mm, 5mm, 6mm, 7mm
• GB/T5223-2002: 4mm, 4.8mm, 5mm, 6mm, 6.25mm, 7mm, 8mm, 9mm
• JIS G3536-2008: 4mm, 5mm, 6mm, 7mm, 8mm, 9mm
• NBR 7482: 4mm, 5mm, 6mm, 7mm
• Raw Material: High Carbon Wire Rod
• Steel Grade: Swrh77b Swrh82b
• Tensile Strength: 1570MPa, 1670MPa, 1770MPa, 1860MPa
• Export Packing: Baling Strip, Plastic Cover, PP Packing Cloth
• Transport Package: Export Packing
• Specification: 3mm-12mm
• Trademark: Daqiang
• Origin: Tianjin, China
• HS Code: 72171000
• Production Capacity: 100 Tons/Day

Product Description

Spiral Ribbed PC Steel Wire
High Carbon Steel HTS Wire for Pre-tensioning Precast Prestressed Concrete
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, 4.2mm, 4.8mm, 5mm, 5.2mm, 6mm, 7mm, 7.5mm, 8mm, 9mm, 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.
 

Nominal Dia.	No.of Helix	Lining Dia.	Width of single	Section Area	Re. Mass per meter
(mm)	Ribs	Tolerance (mm)	Rib (α/mm)	mm2	(g/m)
4.00	4	3.85±0.05	0.90~1.30	12.57	98.6
4.80	4	4.60±0.55	1.30~1.70	18.09	142
5.00	4	4.80±0.05		19.63	154
6.00	4	5.80±0.05	1.60~2.00	28.27	222
6.25	4	6.0±0.05		30.68	241
7.00	4	6.73±0.05	1.80~2.20	38.48	302
8.00	4	7.75±0.05	2.00~2.40	50.26	394
9.00	4	8.75±0.05	2.10~2.70	63.23	499

 

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