PS 90 : 98 Specification

 
PS 90 : 1998 A 400 NR / A 500 NR

Rated
Diameter

Weight
Nominal Cross Section Area
Min Ribs Height
Pitch / Step (Nom)
Kg / m.
Tolerans%
A 400 NR
A 500 NR
mm.
Nom.
mm2
mm.
C1 mm.
C2 mm.
Tolerans %
C mm.
Tolerans %
6
0.222
± 4.5
28.3
0.39
5.8
4.2
± 20
5.0
± 20
8
0.395
50.3
0.52
6.6
4.8
5.7
10
0.617
78.5
0.65
7.5
5.5
± 15
6.5
± 15
12
0.888
113
0.78
8.3
6.1
7.2
16
1.58
201
1.04
11.0
8.2
9.6
20
2.47
314
1.30
13.8
10.2
12.0
25
3.85
491
1.63
17.3
12.7
15.0
32
6.31
804
2.08
22.1
16.3
19.2
40
9.86
1257
2.60
27.6
20.4
24.0
 
Mechanical Properties Test
Quality
Akma (MIn.)
Drawing (Min.)
Extension Rate
Akma Min
Elongation %
MPa
MPa
min
A 400 NR
400
460
Akma x 1.05
14
A 500 NR
500
550
Akma x 1.08
Agt % 5
 
Chemical Composition (A 400 NR / A 500 NR)
Analysis
C
max.
P
max.
S
max.
N
max.
CE
max.
Casting %
0.22
0.050
0.050
0.012
0.50
Product %
0.24
0.055
0.055
0.013
0.52
     
A 400 NR ( 8.18 )
    Mn              Cr+Mo+V              Ni+Cu
      CE = C + ————- + ——————- + —————–
A 500 NR ( 8.18 )
 6                       5                        15