1X19 21.8mm 28.6mm 19 Wires Steel Strand for Prestressed Mining Tunnel

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Model NO.: 1x19-21.8, 28.6
• Material: Steel Wire
• Cross Sectional Shape: Round
• Application: Post Tensioning
• Type: Steel Coil
• Wide in Width: 2.1M
• Surface Treatment: Black
• Metal Wire Drawing: Cold Drawing
• Status: Hard State
• Thickness: Metal Thick Wire
• Relaxation at 1000h Not More Than: 2.5%
• Tensil Strength: 1720~1960MPa
• Coil Size: ID 0.70-0.72m, Od 1.0-1.5m, Width 0.76m
• Elongation at Max Load Not Less Than: 3.5%
• Alloy or Not: Non-Alloy
• Place of Origin: Tianjin, China (Mainland)
• Structure: 1*7 Steel Wires
• Coil Weight: 2.0~4.0 Tons
• Brand Name: Daqiang
• Transport Package: Export Packing
• Specification: GB, ASTM, DIN, BS
• Trademark: DaQiang
• Origin: Tianjin, China
• HS Code: 73121000
• Production Capacity: 1000 Ton/Month

Product Description

1x19 21.8mm 28.6mm 19 wires steel strand for prestressed mining tunnel     

Description: 
High tensile low relaxation steel strand for prestressed concrete
Specification:
Raw Material: High carbon steel wire rod SWRH 82B
Sizes: 1x7-9.3, 9.53, 11.1, 12.5, 12.7, 12.9, 15.2, 15.7, 17.8, 18.9, 21.6; 1x19-21.8, 28.6mm
Standards: ASTM A416-2006, ASTM A910-2005, ABNT NBR 7483:2008, AS 1311(Australia),
AS/NZS 4672.1, BS5896-1980, EN10138-3, GB/T5224-2003, IS6006-1983, JISG3536,
KSD7002, UNE36094-97 (Spain), NEN3868
Categories: smooth plain, galvanized, HDPE coated, epoxy resin coated.
Tensile Strength: 1770-1860-1960MPa, Yield Strength: 1570-1670-1760MPa
Initial load to 70% breaking load, the relaxation at 1000 hours less than 2.5%
Lo over 610mm, the elongation over 3.5%
Package: baling strip, inner PVC film, outer damp-proof paper-plastic compound packing cloth,
wooden pallet pedestal.
Package Weight: 2.0-4.0 tons per roll

Usages:
Pre-stressing steels apply to post-tensioned and pre-tensioned concrete structure in the follow civil engineering, building construction and infrastructure projects: bridges; railway sleeper, subway track board; airport; industrial buildings, commercial buildings, residential housing foundations; PC poles, piles, beams, girders, slabs, double-T board, hollow floor board, floor, parking decks, PHC, PPCP; electric power, nuclear power station; ports, dams, water project, sewage treatment, swimming pool; rock-coil anchoring, side slope stabilization, coil mine; storage tank for national gas, oil, grain; stadiums, TV tower etc.

History:
With excellent quality, reasonable price and good after-sales service, Daqiang Brand has been China Top Ten PC Strand Brand for 6 years. Daqiang products had been used in many national key projects in China and exported to many countries, such as Australia, Bahrain, Bangladesh, Brazil, Chile, Colombia, Dominica, Ecuador, Egypt, India, Iran, Kenya, Lebanon, Malaysia, Panama, Qatar, South Korea, Sri Lanka, Thailand, Venezuela, Viet Nam etc.

Trade Terms:
Min Order Qty: 1FCL / 25-27T
Delivery Time: 10-15 work days
Price Terms: FOB CFR CIF
Payment Terms: TT / LC / DP
 

Standard	Grade	Nonimal Dia.		Section Area	Mass	Breaking Loading	Load at 1% Ext.	Elongation	Relaxation at 1000h
		(in)	(mm)	(mm2)	(g/m)	Min (Mpa)	(KN)	Lo 610mm min	(Initial Load to 70% of Breaking Load)
ASTM A416	270K (1860)	3/8	9.53	54.84	432	102.3	92.1	3.5% min	Low Relaxation	Normal Relaxation
		7/16	11.11	74.19	582	137.9	124.1		2.5% max	3.5% max
		1/2	12.7	98.71	775	183.7	165.3
		3/5	15.24	140.00	1102	260.7	234.6

Standard	Type	Dia.	Tolerance	Section Area	Mass	Tensile Strength	Breaking Loading	Min. Load at 1% Extenstion	Elongation	1000h Relaxation
		(mm)	(mm)	(mm2)	(g/m)	(Mpa)	Min. (KN)	Min (KN)	Min (%)	Max (%)
BS5896 -2012	Standard 7 Wire	9.3	+0.3,    -0.15	52	408	1770	92	81	3.5	2.5%
		11.0		71	557	1770	125	110
		12.5	+0.4,     -0.2	93	730	1770	164	144
		15.2		139	1090	1670	232	204
	Super 7 Wire	9.6	+0.3,     -0.15	55	432	1860	102	90
		11.3		75	590	1860	139	122
		12.9	+0.4,     -0.2	100	785	1860	186	163
		15.7		150	1180	1770	265	233