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Properties Indian Standard ( IS 1786:2008)
415 415D 500 500D 550 550D
Up to and including 10 5d 4d 5d 4d 7d 6d 4d 4d 4d 4d 4d 4d
Over 10 7d 6d 7d 6d 8d 7d 4d 4d 4d 4d 4d 4d
Where d is the nominal size in mm of the test piece.
Polaad Specifications
415 415D 500 500D 550 550D
MECHANICAL PROPERTIES IS 1786: 1985
415 415D 500 500D 550 550D
450 450 530 530 580 580
530 530 585 585 610 610
18-24 18-24 16-20 18-22 16-20 18-22
Properties Indian Standard ( IS 1786:2008)
415 415D 500 500D 550 550D2Yield Strength, Min (N/mm ) 415 415 500 500 550
2Ultimate Tensile Strength, Min (N/mm ) 485 500 545 565 585 600
Elongation, Min (%) 14.5 18 12 16 10 14.5
Polaad Specifications
550
CHEMICAL COMPOSITION -IS 1786: 1985
415 415D 500 500D 550 550D
0.30 0.30 0.25 0.25 0.25 0.25
0.060 0.060 0.050 0.040 0.050 0.040
0.060 0.060 0.050 0.040 0.050 0.040
0.110 0.110 0.100 0.075 0.095 0.075
Elements
415 415D 500 500D 550 550D
Carbon, Max 0.30 0.25 0.30 0.25 0.30 0.25
Sulfur, Max 0.060 0.045 0.055 0.040 0.055 0.040
Phosphorus, Max 0.060 0.045 0.055 0.040 0.050 0.040
S + P, Max 0.110 0.085 0.105 0.075 0.100 0.075
Indian Standard (IS 1786:2008) Polaad Specifications
Properties Indian Standard ( IS 1786:2008)
415 415D 500 500D 550 550D
Up to and including 20 3d 2d 4d 3d 5d 4d 3d 2d 3d 3d 3d 3d
Over 20 4d 3d 5d 4d 6d 5d 3d 3d 3d 3d 3d 3d
Where d is the nominal size in mm of the test piece.
Polaad Specifications
415 415D 500 500D 550 550D
Size (Dia) Section Wt. (kg/m) Polaad Section Length Weight of 1 Bar No. of Bars Polaad Bundle No. of of bar (mm) as per IS 1786 Wt. (kg/m) of Bar (ft.) of Polaad (kg) in 1 Bundle (Wt. in kg) in 1 MT Bundles
Lower Standard Higher Lower Higher Lower Higher Lower Standard Higher in 1 MT
8 0.367 0.395 0.423 0.375 0.415 12 4.503 4.977 20 90.060 94.800 99.540 211 11
10 0.574 0.617 0.660 0.586 0.648 12 7.034 7.774 13 91.439 96.252 101.065 135 10
12 0.844 0.888 0.932 0.861 0.915 12 10.336 10.976 9 93.027 95.904 98.781 94 10
16 1.500 1.579 1.658 1.532 1.626 12 18.380 19.516 5 91.898 94.740 97.582 53 11
20 2.392 2.466 2.540 2.417 2.515 12 29.000 30.184 3 87.000 88.776 90552 34 11
25 3.738 3.854 3.970 3.777 3.931 12 45.323 47.173 2 90.646 92.496 94.346 22 11
28 4.689 4.834 4.979 4.737 4.931 12 56.848 59168 1 56.848 58.008 59168 17 17
32 5.941 6.125 6.309 6.003 6.248 12 72.030 74.970 1 72.030 73.500 74.970 14 14
bars No. of
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