ASTM A 615 METRIC SYSTEM (DEFORMED REINFORCING STEEL BAR)
| Nominal Weight ,Nominal Dimentions,and Deformation Requirements |
| DIAMETER |
mm |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
25 |
25 |
28 |
32 |
| WEIGHT (Kg/m) |
nom
min |
0,395
0,371 |
0,617
0,580 |
0,888
0,835 |
1,208
1,136 |
1,578
1,483 |
2,000
1,880 |
2,466
2,318 |
3,853
3,622 |
3,853
3,622 |
4,834
4,544 |
6,313
5,934 |
| Sectional area |
mm² |
50,2 |
78,5 |
113,0 |
153,9 |
201,0 |
254,3 |
314,0 |
490,6 |
490,6 |
615,4 |
803,8 |
| Nominal perimeter |
mm |
25,1 |
31,4 |
37,7 |
44,0 |
50,2 |
56,5 |
62,8 |
78,5 |
78,5 |
87,9 |
100,5 |
| Max. Average Spacing (mm): |
5,7 |
7,1 |
8,6 |
10,0 |
11,4 |
12,9 |
14,3 |
17,9 |
17,9 |
20,0 |
22,9 |
| Min. Average Spacing Rip Height (mm): |
0,32 |
0,40 |
0,48 |
0,56 |
0,64 |
0,90 |
1,00 |
1,25 |
1,25 |
1,40 |
1,60 |
| Max. Gap ,Chord (mm): |
3,1 |
3,8 |
4,6 |
5,4 |
6,2 |
6,9 |
7,7 |
9,6 |
9,6 |
10,8 |
12,3 |
| Rolling tolerance (%) |
Shall be at least 94%(-6%) of the applicable weight per unit length |
| Rolling tolerance (%) |
GRADE 60 |
MECHANICAL
PROPERTIES |
Yield
(N/mm²) |
min 420 |
Tensile
(N/mm²) |
min 620 |
Io=200mm
%
Elongation |
8,…..,20=>min9
22, 25=>min8
28,……,50=>min7 |
BEND T.
180° |
8,….,16=>3,5d
18,….,25=>5d
28,….,40=>7d 40, 50=>9d |
| ROLLING MARKING |
E S C |
CHEMICAL
COMPOSITION
% max |
C |
|
| Si |
|
| S |
|
| P |
0,060 % . |
| Mn |
|
| Cu |
|
| Cr |
|
|
