亚虎国际娱乐_亚虎国际平台_亚洲顶级在线娱乐平台

  Prestressed concrete bar, is a kind of high-tech prestressed steel material developed in Japan during 1960s, Japanese patent granted in 1964, is of intermediate prestressed intensity level.

  Features
  With high-strength toughness, low-relaxation, strong bond with the concrete, good weldability and upsetting, material-saving (replacement of Φ20mm hot-rolled bar) and other properties. 

  Technical Parameters
 
Surface
Shape Type
Nominal
Diameter
mm
Reference
Section
mm²
Reference
Mass
g/m
Diameter of the
Outer Contour
mm
Tensile
Strength
MPa
Yield Strength
MPa
Yield Ratio Elongation Rate
A
%
Agt
%
Spiral Groove 7.10 40 314 7.25±0.10 ≥1230
≥1420
≥1080
≥1275
/ ≥7.0 /
9.00 64 502 9.15±0.20
10.70 90 707 11.1±0.20
12.60 125 981 13.10±0.20
Spiral Rib 5.00 19.6 154 5.30±0.20 ≥970
≥1070
≥825
≥910
0.85~0.93 / ≥3.5
7.00 38.5 302 7.46±0.20
9.00 63.6 499 9.45±0.20

  Technology Standard

  Chinese Standard      GB/T5223.3-2005
  Japanese Standard    JIS  G3137-1994

  
 
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