Download PNS 49 Table


 Proposed PNS 49 2001


 Proposed PNS 211 2001

 



Steel Bars Mechanical Properties (PNS 49:1991)

Classification

PNS

Grade

ASTM

Yield
Strength
(MPa)

Tensile
Strength
(MPa)

Hot-Rolled
Non-Weldable
Deformed
Steel Bar

230

275

415

Structural

Intermediate

High Tensile

33

40

60

230

275

415

390

480

620

Hot-Rolled
Weldable
Deformed
Steel Bar

230

275

415

Structural

Intermediate

High Tensile

33

40

60

230

275

415

390

480

550*

Classification

Size

Elongation
200mm Gage
Length (%)

Bending
Angle
(degree)

Pin
Diameter

Color
Coding

Hot-Rolled
Non-Weldable
Deformed
Steel Bar

D<25
D>=25
D<25
D>=25
D<25
D>=25

18
16
10
8
8
7

180

180

180

3D
4D
4D
5D
5D
6D

WHITE

YELLOW

GREEN

Hot-Rolled
Weldable
Deformed
Steel Bar

D<25
D>=25
D<25
D>=25
D<25
D>=25

20
18
16
14
14
12

180

180

180

3D
4D
4D
5D
5D
6D

WHITE/RED

YEL/RED

GREEN/RED

* Shall not be less than 1.25 times the actual yield strength
D = Nominal Diameter of Bar Specimen

Steel Bars Weight Table

Nominal
Diameter
mm

Dot
Mark

Nominal Area
sq.mm

Unit
Weight
kg/m

Nominal Weight Per Piece

ASTM A 615:1995

6m
kg

7.5m
kg

9m
kg

10.5m
kg

12m
kg

BAR
NO.

Diameter

in

mm

6
8
10
12
16
20
25
28
32
36
40
50


1
2
3
4
5
6
7
8
9
10

28.27
50.26
78.54
113.10
201.06
314.16
490.88
615.75
804.25
1017.88
1256.64
1963.49

0.222
0.395
0.616
0.888
1.579
2.466
3.854
4.833
6.313
7.991
9.865
15.413

1.332
2.370
3.696
5.330
9.474
14.796
23.124
28.998
37.878
47.946
59.190
92.478



4.620
6.662
11.843
18.495
28.905
36.248
47.348
59.933
73.987
115.597



5.544
7.994
14.211
22.194
34.686
43.497
56.817
71.919
88.785
138.717



6.468
9.327
16.580
25.893
40.467
50.747
66.287
83.906
103.582
161.836

2.664
4.740
7.392
10.659
18.948
29.592
46.248
57.996
75.756
95.892
118.380
184.956

2

3
4
5
6
8
9
10
11
14
18

.250

.375
.500
.625
.750
1.000
1.128
1.270
1.410
1.693
2.257

6.350

9.525
12.700
15.875
19.050
25.400
28.651
32.258
35.814
43.002
57.328

1) Permissible variation in actual weight of a steel bar from the theoretical weight shall not exceed 6%. While for 8mm diameter & below, it shall not exceed 10%
2) 6mm diameter steel bar is covered by the PNS 211 standard

Deformation Requirements
Unit: mm

Nominal
Diameter [D]

Max. Average
Spacing of Lugs [L]

Height of Lugs [H]

Max. Value
Summation of Gaps
of Lugs [G]

Minimum

Maximum

6
8
10
12
16
20
25
28
32
36
40
50

7.0
7.0
7.0
8.4
11.2
14.0
17.5
19.6
22.4
25.2
28.0
35.0

0.2
0.3
0.4
0.5
0.7
1.0
1.2
1.4
1.6
1.8
2.0
2.5

0.4
0.6
0.8
1.0
1.4
2.0
2.4
2.8
3.2
3.6
4.0
5.0

4.7
6.3
7.8
9.4
12.6
15.7
19.6
22.0
25.1
27.5
31.4
39.3