steel strand
for prestressed concrete

anluminum stranded and
steel cored aluminium stranded

zinc-plated
steel strand


steel wire for type dead
carbon spring steel wire
carbon spring steel wire
for non-mechanical spring
zinc-plating low-carbon steel wire
for armoured cable



zinc-plating lw-carbon steel wire for amoured cable.


diameter allowable tolerance
table of steel wire

nominal diameter
(mm)

allowable tolerance
(mm)
1.6
2.00 2.5
3.15 4.0
0.05
0.08
0.10




mechanical performance
table of streel wire

nominal diameter
(mm)

tensile strength
(mpa)

 


elongation rate


torsion test


not smaller than
(%)

gauge length
(mm)

times is not smaller than

gauge length
(mm)
1.6
2.0
2.5
3.15


343-490 10 160
200
250
250
250
37
30
24
19
15
150





table os steel
wire's zine coating

Nominal diametrer(MM)
Unit I

Unit II

weight of zine coating not smaller than (g/m2) frequency dipped in coper sulphate not smaller than
coiling test
weitht of zine coating not smaller than (g/m2)
frequency dipped in copper sulphate not smaller than

coiling test
60% 30% meltiple of core rod diameter to steel wire diameter tuming rounds of coiling not smaller than 60s 30s multiple of corerod diameter to steel wire diameter turning rounds of coiling not smaller than
1.6
2.0
2.5
3.15
4.0
150
190
210
240
270
2
2
2
3
3

_
_
_
_
_

4
4
4
4
5
6 220
240
260
275
290
2
3
3
3
3

1
-
-
1
1

4
4
4
4
5
6



 
 
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