亚虎国际娱乐_亚虎国际平台_亚洲顶级在线娱乐平台

  Prestressed concrete steel wire is a kind of steel wire made of carbon steel wire material, and used in prestressed concrete structures or prestressed steel structures.
 
  Features
  High-strength, low-relaxation, supply in coil, large-length, low-consumption, spiral rib steel wire has strong bond with concrete.

  Technical Parameters
Technical Parameters of Prestressed Spiral Rib Steel Wire
Nominal
Diameter
mm
Reference
Section
mm²
Reference
Mass
g/m
Section Standard Size The Number
of Spiral Ribs
Strip
 
Spiral Lead
mm
Base Diameter
mm
Diameter of the
Outer Contour
mm
Rib Width
mm
Rib Height
mm
4.80 18.1 142 4.60±0.05 5.10±0.05 1.30~1.70 0.20~0.30 4 28~36
5.00 19.63 154 4.80±0.05 5.30±0.05 1.30~1.70 0.20~0.30 4 28~36
6.00 28.27 222 5.80±0.05 6.30±0.05 1.60~2.00 0.20~0.30 4 30~38
6.25 30.68 241 6.00±0.05 6.70±0.05 1.60~2.00 0.30~0.40 4 30~40
7.00 38.48 302 6.73±0.05 7.46±0.10 1.80~2.20 0.30~0.40 4 35~45
7.50 44.18 347 7.25±0.05 7.95±0.10 1.90~2.30 0.30~0.40 4 40~50
8.00 50.26 394 7.75±0.05 8.45±0.10 2.00~2.40 0.30~0.40 4 40~50
 
Nominal
Diameter
mm
Tensile
Strength
MPa
Required 
Non-roportional Extension Force
MPa
Extension
Rate
L0=200mm
%
Bending Properties Relaxation Properties
Times Bending
Radius
mm
Condition %
4.80 1470
1570
1670
1770
1290
1380
1470
1560
≥3.5 ≥4 15 The Ratio of Initial Load to Nominal Maximum Force
60%
70%
80%
Stress Relaxation Rate
 
≤1.0
≤2.0
≤4.5
5.00
6.00
6.25 20
7.00
7.50 1470
1570
1670
1290 
1380
1470
8.00
Technical Parameters of Prestressed Smooth Round Wire
Nominal
Diameter
mm
Tensile
Strength
MPa
Required
Non-porportional Extension Force
MPa
Extension Rate
L0=200mm
%
Bending properties Relaxation properties
Times Bending Radius
mm
Condition %
4.00 1470
1570
1670
1770
1290
1380
1470
1560
≥3.5 ≥4 15 The Ratio of
Initial Load to
Nominal Maximum Force
60%
70%
80%
1000h Stress Relaxation Rate


≤1.0
≤2.0
≤4.5
5.00
6.00
7.00 20
8.00
Technical Parameters of Cold Drawn Wire for Pipe
Nominal
Diameter
mm
Tensile
Strength
MPa
Required
Non-porportional Extension Force
MPa
Total Extension Rate of Maximum
Force
L0=200mm
%
Torsion
(Torque 210mm)
Times
Section
Shrinkage
%
Stress Relaxation Rate After
1000h,When Initial Force is 70%
of Nominal Maximum Force
%
4.00 1470
1570
1670
1770
1100
1180
1250
1330
≥1.5 ≥8 ≥35 ≤8
5.00 ≥8 ≥35
6.00 ≥7 ≥30
7.00 ≥6 ≥30


  Technology Standard   Chinese Standard       GB/T 5223-2002
  British Standard     BS  5896-1980
  American Standard     ASTM A421

  
 
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