hot dip galvanized steel wire

high strength;low relaxation;comply with the JTJ027-96<Design specification for highway cable-stayed bridge> regulationd

Production process:

1.raw material inspection

2.pickling boride coating

3.drawing

4.single wire stabilizing treatment

5.finished product inspection

6.packaging

7.put in storage

Usages: 

1.galvanized steel wire is usually used for bearing cable ( messenger wire )

2.be used for cable ( guy wire )

3.to strengthen the core ( core wire or strength member )

4.be used as ground wire overhead transmission ( earth wire/ground wire )

5.be used as the road on both sides of the arresting cable ( barrier cable )

6.the building structure of cable ( structure cable )

Advantages:

1.high strengh

2.low relaxation

3.steel wire is tightly twisted 

4.no taggered,fragture and bending

5.steel diameter and twist pitch is uniform,not loose after loose

6. steel wire and strand (including the center wire ) is the same diameter, the same strength, same zinc levels

7.widely applied to the construction of prestressed concrete structure,bridge,power stations,highways,high-rise building,ground anchorage,etc.

8.strand is of straight, soft, small residual stress and no s-shape after expansion

Technical Performance Parameters:

order number	item	technical requirements
1	diameter and deviation	Φ7.00(+0.07/-0.01)mm
2	ovality	≤0.04mm
3	nominal areas	38.48mm²
4	nominal weight	301g/m
5	tensile strengh	≥1670MPa
6	yield strengh	≥1410MPa
7	extensibility	>4.0%(gauge length L=250mm)
8	modulus of elasticity	2.0(+0.1,-0.05)× 105   MPa
9	alternating bending	≥5 times (R=20mm,180°)
10	coiling	3d×8r(d=diameter,r=round)
11	the relaxation rate	≤2.5%(0.7G.U.T.S,1000h,20°c)
12	fatigue stress	360MPa(maximum stress0.45G.U.T.S,N=2×106)
13	zinc coating unit weight	≥300g/m
14	zinc coating adhesion	5d×8r,zinc coating not layer and peeling off
15	copper sulfate	>5times(surface are not hanging copper in one minute every time
16	cold upsetting performance	coply with ASTM A-421regulation
17	extended properties	chord length1m the largest natural height between chord and arch≤30mm
18	natural circle lift	≤0.15
19	disc weight	inside diametr1800mm,coil number95%>800kg,400kg<the oher 5%<800kg
20	chemical constituent	C:0.75~0.85%;Si:0.12~0.32%;Mn:0.60~0.90%;S‚P:≤0.025%;Cu:<0.2%

our features:

We provide after-sale service, technical support, personalization and processing, production on-demand  and strictly in accordance with the buyer requirements to provide quality services. Provide engineering construction for  bridge,railway,building etc,and maintenance and reinforcement of bridge.We have a strong engineering team who are all qualified and resolve kinds of problems during construction.