PART LIST of IMPROVED SWITCH EXPANTION FOR LONG WELDED RAIL (With 80mm Max: GAP) 60 KG. ON PSC SLEEPERS TO DRG. NO. RDSO/T-6902 ALT-2
|
Sl. No. |
Description |
Drawing No. |
Qty. / Set |
|
1 |
Stock rail Right (6180 mm) |
RDSO/T-6902/1 |
01 |
|
2 |
Stock rail Left (6180 mm) |
RDSO/T-6902/1 |
01 |
|
3 |
Tongue Rail Right (6780 mm) |
RDSO/T-6902/2 |
01 |
|
4 |
Tongue Rail Left (6780 mm) |
RDSO/T-6902/2 |
01 |
|
5 |
GAP Avoid Rail Right (2380mm) |
RDSO/T-6902/3 |
01 |
|
6 |
GAP Avoid Rail Left (2380mm) |
RDSO/T-6902/3 |
01 |
|
7 |
Check Rail (2700mm) 52Kg. |
RDSO/T-6903 |
02 |
|
8 |
C .I. Chair |
RDSO/T-6904 |
10 |
|
9 |
M.S. bracket |
RDSO/T-6905 |
06 |
|
10 |
M.S. bracket |
RDSO/T-6906 |
10 |
|
11 |
M.S. bracket |
RDSO/T-6907 |
02 |
|
12 |
M.S. bracket |
RDSO/T-6908 |
02 |
|
13 |
HTS Bolt with Nut 10.9 (M27 X 90) |
RDSO/T-6909 |
08 |
|
14 |
Bolts (25 X 90) with SCS washer |
RDSO/T-8604 |
10 |
|
15 |
Bolts (25 X 95) with SCS washer |
RDSO/T-6910 |
20 |
|
16 |
Bolts (25 X 145) with SCS washer |
RDSO/T-6911 |
30 |
|
17 |
Plate screw |
RDSO/T-3916 |
20 |
|
18 |
Plate screw |
RDSO/T-3915 |
20 |
|
19 |
Single Coil Spring Washer |
T - 10773 |
40 |
|
20 |
Split pin (Ø 6.3 x 40mm long) |
-- |
40 |
|
21 |
Plain Washer for 25 Ø bolt |
-- |
10 |
|
22 |
Hardened washer |
RDSO/T-6912 |
08 |
|
23 |
Hardened washer |
RDSO/T-6913 |
08 |
Joint Inspection
Report (Dimensional) for Improved Switch Expansion Joints BG 60 Kg to RDSO Drg.
No. T-6902,Alt. 2
|
SL No |
PARAMETERS |
DRG. DIM. (MM) |
|
|
1 |
Length of
Stock Rail |
6180+3 |
|
|
2 |
Length of
Tongue Rail |
6780+3 |
|
|
3 |
Length of
Gap avoid Rail |
2380+1 |
|
|
4 |
Overall
length of SEJ |
13000+3 |
|
|
5 |
Alignment |
+1 |
|
|
6 |
Matching
of Tongue / Stock Rail |
0.5mm filler |
|
|
7 |
Composite
head width of Stock and Gap avoiding
Rail |
91+1 |
|
|
8 |
Composite
Foot width of Stock and Gap avoiding
Rail |
169+1 |
|
|
9 |
Half head
width of Tongue Rail |
45+0.5 |
|
|
10 |
Half Head width of Gap Avoiding Rail |
46+0.5 |
|
|
11 |
Machining
length of Tongue Rail |
1200+1 |
|
|
12 |
Machining
length of Stock Rail |
1180+1 |
|
|
13 |
Topping of
Tongue / Stock Rail
|
3/378 |
|
|
14 |
Side Slope
of Tongue / Stock Rail |
3/378 |
|
|
15 |
Topping of
Gap avoid Rail |
6/378 |
|
|
16 |
Topping of
Gap avoid Rail |
6/100 |
|
|
17 |
20R Tongue
/Stock Rail |
20 |
|
|
18 |
43R (in
side) Tongue Rail |
43 |
|
|
19 |
43R (Out
side) Gap avoid Rail |
43 |
|
|
20 |
Tapering
slope on Non Gauge side |
4/19 |
|
|
21 |
Length,
width & hole position of C.I.Chair (RT-6904) |
533 +2/-0 |
|
|
22 |
Hole Dia.
of CI Chair |
27 |
|
|
23 |
Size.of
square head of CI Chair |
28Φ /47 sq. |
|
|
24 |
Top
machining of C.I. Chair & slope of 1 in 20 |
As per Drg |
|
|
25 |
Rail seat
groove depth a) at outer side b) at
inner side |
13.9±0.5 14.8±0.5 |
|
|
26 |
Overall
Length of Check Rail |
2700+5 |
|
|
27 |
Hole
Height in Check Rail |
79+1 |
|
|
28 |
Check Rail
Head M/C |
30+1 |
|
|
29 |
40 Gap
Bet. Stock/ Tongue rail |
40 |
|
|
30 |
Hole Dia
of Check Rail |
28.0+.08 |
|
|
31 |
Spacing
of Check Rail holes |
600+.08 |
|
|
32 |
Length of
Head M/C from Extreme end of Check Rail |
600+2.5 |
|
|
33 |
Chamfering
3x3 & removal of sharp edges not more than 2R |
----- |
|
|
34 |
End
Squareness |
-- |
|
|
35 |
Condition
of M.S. Brackets |
-- |
|
|
36 |
Surface
Roughness on Planning Surface |
3-7 micron |
Assembly of
Improved SEJ to drawing no. RDSO/T-6902
|
SL No |
PARAMETERS |
DRG. DIM. (mm) |
|
|
1 |
Overall
length of SEJ |
13000+3 |
|
|
2 |
Composite
head width of Stock / Tongue Rail |
91+1 |
|
|
3 |
Composite
Foot width of Stock / Tongue Rail |
169+1 |
|
|
4 |
Matching
of Tongue / Stock Rail |
0.5mm filler |
|
|
5 |
Center to
center distance of CI Chair |
600 |
|
|
6 |
Mean position
of tongue rail |
Centre of CI chair |
|
|
7 |
GAP
between Stock and Tongue Rail at mean position |
40mm |
|
|
8 |
Removal of
Sharp edges |
< 2R |
|
|
9 |
Alignment |
±1 |
|
|
10 |
Flange Way
Clearance |
41 |
|
|
11 |
Check Rail
Flare |
71 |
Stock Rail (Drg. No. RDSO/T-6902/1)
|
SL No |
PARAMETERS |
DRG. DIM. (mm) |
|
|
1 |
Length of
Stock rail |
6180+3 |
|
|
2 |
Machining
length of Stock rail |
1180 +1 |
|
|
3 |
Half head
width of Stock rail |
45+0.5 |
|
|
4 |
Foot width
of Stock rail |
84+0.5 |
|
|
5 |
20R Radius
of Stock rail |
20 |
|
|
6 |
43R (in
side) Radius of Stock rail |
43 |
|
|
7 |
Top slope
of Stock rail |
3/378 |
|
|
8 |
Side Slope
of Stock rail |
3/378 |
|
|
9 |
Chamfering
3x3 on head |
3x3 |
|
|
10 |
Chamfering
3x3 on foot |
3x3 |
|
|
11 |
Hole Dia. |
30+0.8 |
|
|
12 |
Hole
Height |
76.25+0.8 |
|
|
13 |
Distance
of Ist hole from machined edge |
240+0.8 |
|
|
14 |
Distance
between 1st& 2nd
hole |
80+0.8 |
|
|
15 |
Distance
between 2nd& 3rd
hole |
520+0.8 |
|
|
16 |
Distance
between 3rd& 4th hole |
80+0.8 |
|
|
17 |
Distance
between 4th hole from start of machining |
260+0.8 |
|
|
18 |
End
Squareness |
-- |
|
|
19 |
Alignment
of Stock rail |
±1 |
|
|
20 |
Surface Roughness
of Stock rail |
3-7 Micron |
Tongue Rail
(Drg. No. RDSO/T-6902/2)
SL
No
PARAMETERS
DRG. DIM.
(mm)
1
Length of
Tongue rail
6780+3
2
Machining
length of Tongue rail
1200 +1
3
Half head
width of Tongue rail
45+0.5
4
Foot width
of Tongue rail
84+0.5
5
20R Radius
of Tongue rail
20
6
43R (in
side) Radius of Tongue rail
43
7
Top slope
of Tongue rail
3/378
8
Side Slope
of Tongue rail
3/378
9
Chamfering
3x3 on head
3x3
10
Chamfering
3x3 on foot
3x3
11
End Squareness
--
12
Alignment
of Tongue rail
±1
13
Surface
Roughness of Tongue rail
3-7 Micron
Gap Avoiding
Rail (Drawing No. RDSO/T-6902/3)
|
SL No |
PARAMETERS |
DRG. DIM. (mm) |
|
|
1 |
Length of
Gap Avoiding Rail |
2380+1 |
|
|
2 |
Half head
width of Gap Avoiding Rail |
46+0.5 |
|
|
3 |
Foot width
of Gap Avoiding Rail |
85+0.5 |
|
|
4 |
43R (Out
side) Radius of Gap Avoiding Rail |
43 |
|
|
5 |
Top slope
of Gap Avoiding Rail |
6/378 |
|
|
6 |
Top slope
of Gap Avoiding Rail |
6/100 |
|
|
7 |
Tapering
slope on non gauge face side Gap Avoiding Rail |
4/19 |
|
|
8 |
Chamfering
3x3 on head |
3x3 |
|
|
9 |
Chamfering
3x3 on foot |
3x3 |
|
|
10 |
Hole Dia. |
30+0.8 |
|
|
11 |
Hole
Height |
76.25+0.8 |
|
|
12 |
Distance
of Ist hole from edge |
260+0.8 |
|
|
13 |
Distance
between 1st& 2nd
hole |
80+0.8 |
|
|
14 |
Distance
between 2nd& 3rd
hole |
520+0.8 |
|
|
15 |
Distance
between 3rd& 4th hole |
80+0.8 |
|
|
16 |
Alignment
of Stock rail |
±1 |
|
|
17 |
Surface
Roughness of Gap Avoiding Rail |
3-7 Micron |
Check Rail
(Drawing No. RDSO/T-6903)
SL
No
PARAMETERS
DRG. DIM.
(MM)
1
Overall
Length of Check Rail
2700+5
2
Hole
Height in Check Rail
79+1
3
Check Rail
Head M/C
30+1
4
Hole Dia
of Check Rail
28.0+.08
5
Spacing
of Check Rail holes
600+.08
6
Length of
Head M/C from Extreme end of Check Rail
600+2.5
C. I. Chair
(Drawing No. RDSO/T-6904)
|
SL No |
PARAMETERS |
DRG. DIM.
(mm) |
|
|
1. |
Total
Length |
533 +2,-0.0 |
|
|
2. |
Width |
300±1 |
|
|
3 |
Hole
position for Plate Screw |
445±1& 120±1 |
|
|
4 |
Hole dia
for Plate Screw |
27±0.8 |
|
|
5 |
position
of Square for bolt |
105/105 |
|
|
6 |
Size
of Square hole for bolt |
47×47 ±1.5 |
|
|
7 |
Top
machining/Profile of CI Chair |
As per drg. |
|
|
8 |
Thickness
at Rail Seat |
39.5 |
|
|
9 |
Dia&
depth of slot for bolt |
25 |
|
|
10 |
Condition
of CI Chair |
--- |
M. S. Bracket (Drawing No. RDSO/T-6905)
SL No
PARAMETERS
DRG. DIM. (mm)
1.
Total
Length
300
+0,-2
2.
Height of
Bracket
116.7±0.5
3
Width of
Bracket
139.5 ±0.5
4
Thickness
of Bracket at bottom
25±0.5
5
Hole dia
28±0.8
6
Distance
of hole centre from edge
32±0.5
7
Thickness
& spacing of stiffener
20±0.5, 97.5±0.5 & 105±0.5
8
Spacing of
hole from edge & C/C
45,
105±0.5
M. S. Bracket (Drawing No. RDSO/T-6906)
|
SL No |
PARAMETERS |
DRG. DIM.
(mm) |
|
|
1. |
Total
Length |
300 +0,-2 |
|
|
2. |
Width of
Bracket |
226.6±0.5 |
|
|
3 |
Thickness
of Bracket |
20±0.5 |
|
|
4 |
Hole dia |
28±0.8 |
|
|
5 |
Height of check rail resting plate |
119.8
+1/-0 |
|
|
6 |
Width of
check rail resting pad |
83.5 |
|
|
7 |
Spacing of
hole from edge & C/C |
45, 210±0.5 |
M. S. Bracket (Drawing No. RDSO/T-6907)
SL No | PARAMETERS | DRG. DIM. (mm) | |
1. | Total Length | 300 +0,-2 | |
2. | Height of Bracket | 116.7±0.5 | |
3 | Width of Bracket | 139.5±0.5 | |
4 | Thickness of Bracket at bottom | 25±0.5 | |
5 | Hole dia | 28±0.8 | |
6 | Distance of hole center from edge | 32±0.5 | |
7 | Thickness & spacing of stiffener | 20±0.5, 97.5±0.5 & 105±0.5 | |
8 | Spacing of hole from edge & C/C | 45, 105±0.5 | |
9 | Size of Stopper | 60×60 | |
10 | Thickness of Stopper Plate | 19 ± 0.5 |
M. S. Bracket (Drawing No. RDSO/T-6908)
|
SL No |
PARAMETERS |
DRG. DIM.
(mm) |
|
|
1. |
Total
Length |
300 +0,-2 |
|
|
2. |
Height of
Bracket |
116.7±0.5 |
|
|
3 |
Width of
Bracket |
139.5±0.5 |
|
|
4 |
Thickness
of Bracket at bottom |
25±0.5 |
|
|
5 |
Hole dia |
28±0.8 |
|
|
6 |
Distance
of hole center from edge |
32±0.5 |
|
|
7 |
Thickness
& spacing of stiffener |
20±0.5, 97.5±0.5 & 105±0.5 |
|
|
8 |
Spacing of
hole from edge & C/C |
45, 105±0.5 |
|
|
9 |
Size of
Stopper |
60×60 |
|
|
10 |
Thickness
of Stopper Plate |
19 ± 0.5 |
Hardened Washer (Drawing No. RDSO/T-6912
|
SL No |
PARAMETERS |
DRG. DIM.
(mm) |
|
|
1. |
Length |
102.7 +0.0/-0.8 |
|
|
2. |
Width |
50 +0.8/-0.0 |
|
|
3 |
Dia.
of hole |
30 +0.52/-0.0 |
|
|
4 |
Width of
slot |
47 +0.8/-0.0 |
|
|
5 |
Thickness |
10 +0.6 |
|
|
6 |
Depth
of slot |
3 |
|
|
7 |
Hole
centre |
51.4+0.8 |
Hardened Washer (Drawing No. RDSO/T-6913)
|
SL No |
PARAMETERS |
DRG. DIM.
(mm) |
|
|
1. |
Length |
102.7 +0.0/-0.8
|
|
|
2. |
Width |
50 +0.8/-0.0 |
|
|
3 |
Dia.
of hole |
30 +0.52/-0.0 |
|
|
4 |
Thickness |
10 +0.6 |
|
|
5 |
Hole
centre |
51.4+0.8 |
HTS Bolt
(Drawing No. RDSO/T-6909)
|
SL No |
PARAMETERS |
DRG. DIM. (mm) |
|
|
1. |
Total
Length of bolt |
90 +3/-0 |
|
|
2. |
Thread
length of bolt |
43 +2/-1 |
|
|
3 |
Diameter
of bolt |
27±0.8 |
|
|
4 |
Head width
of bolt (A.F.) |
45 +1/-0 |
|
|
5 |
Head width
of bolt (C.C.) |
50.85 Max. |
|
|
6 |
Head
Thickness of bolt |
17±0.9 |
|
|
7 |
Thickness
of nut |
27±0.6 |
|
|
8 |
Head width
of nut (A.F.) |
45 +1/-0 |
|
|
9 |
Head width
of nut (C.C.) |
50.85 Max. |
Bolt (Drawing No. RDSO/T-6910)
|
SL No |
PARAMETERS |
DRG. DIM.
(mm) |
|
|
1. |
Total
Length |
95±3 |
|
|
2. |
Thread
length |
60 |
|
|
3 |
Dia. of
bolt |
25+1/-0.4 |
|
|
4 |
Head width
of bolt |
41 +0/-1
|
|
|
5 |
Thickness
of head |
22±0.65 |
Bolt (Drawing No. RDSO/T-6911)
|
SL No |
PARAMETERS |
DRG. DIM.
(mm) |
|
|
1. |
Total
Length |
145±3 |
|
|
2. |
Thread
length |
95 |
|
|
3 |
Dia. of
bolt |
25+1/-0.4 |
|
|
4 |
Hole
dia.for Split pin |
6.3 |
|
|
5 |
Distance
of hole for split pin from bottom of
head |
137 |
|
|
6 |
Head width
of bolt |
41 +0/-1, |
|
|
7 |
Thickness
of head |
22±0.65 |
Bolt (Drawing No. RDSO/T-8604)
|
SL No |
PARAMETERS |
DRG. DIM.
(mm) |
|
|
1. |
Total
Length |
90±1 |
|
|
2. |
Thread
length |
70 |
|
|
3 |
Dia. of
bolt |
25+1/-0.4 |
|
|
4 |
Hole dia.for
Split pin |
6.3 |
|
|
5 |
Distance
of hole for split pin from bottom of
head |
82±0.8 |
|
|
6 |
Head width
of bolt |
41 +0/-1, |
|
|
7 |
Thickness
of head |
22±0.65 |
Single Coil Spring Washer (Drawing No. T-10773)
|
SL No |
PARAMETERS |
DRG. DIM.
(mm) |
|
|
1. |
Outer Dia |
44.4 Max |
|
|
2. |
Inner Dia |
27 +1/-0 |
|
|
3 |
Gap Bet.
Two Edge. |
2.5±1 |
|
|
4 |
Free
Height |
14± 0.75 |
|
|
5 |
Thickness |
8±0.2 |
Plate Screw (Drawing No. RDSO/T-3916)
|
SL No |
PARAMETERS |
DRG. DIM.
(mm) |
|
|
1. |
Length |
190±5 |
|
|
2. |
Shank Dia. |
24+0.2,
-0.1 |
|
|
3 |
Head height |
38 +2,-1 |
|
|
4 |
Dia. of circular head |
48±0.5 |
|
|
5 |
Thread Pitch |
12.5 |
Plate Screw (Drawing No. RDSO/T-3915)
|
SL No |
PARAMETERS |
DRG. DIM.
(mm) |
|
|
1. |
Length |
180±5 |
|
|
2. |
Shank Dia. |
24+0.2,
-0.1 |
|
|
3 |
Head height |
38 +2,-1 |
|
|
4 |
Dia. of circular head |
48±0.5 |
|
|
5 |
Thread Pitch |
12.5 |
CHEMICAL REPORT
|
SL. No. |
Description of
Material as per Specification |
C % |
Mn % |
S % |
P % |
Si % |
|
1. |
Specified ValueIS 1875 Cl-3/ IRS T-23 |
0.25-0.35 |
0.60-0.90 |
0.040 Max. |
0.040 Max. |
0.15-0.35 |
|
Track Bolt RDSO/T-6910, RDSO/T-6911, RDSO/T-8604 |
0.29 0.28 0.27 |
0.72 0.74 0.72 |
0.026 0.027 0.027 |
0.026 0.027 0.025 |
0.20 0.22 0.21 |
|
|
2. |
Specified
Value IS 1875 Cl-2A /IRS T-23 |
0.20-0.30 |
0.60-0.90 |
0.040 Max. |
0.040 Max. |
0.15-0.35 |
|
Track Nut RDSO/T-6910, RDSO/T-6911, RDSO/T-8604 |
0.22 0.22 0.23 |
0.72 0.75 0.72 |
0.025 0.025 0.024 |
0.0.27 0.026 0.028 |
0.20 0.23 0.21 |
|
|
3. |
Specified
Value IRS T- 10, IS
2062: 2011 Gr. E250 Quality : BR |
0.22
Max. |
1.50 Max. |
0.045 Max. |
0.045 Max. |
0.40Max. |
|
MS Plates for M.S. Bracket RDSO/T-6905, RDSO/T-6906, RDSO/T-6907 & RDSO/T-6908 Plate
Size 14mm Plate
Size 16mm Plate
Size 20mm Plate
Size 25mm |
0.19 0.18 0.18 0.17 |
0.92 0.82 0.83 0.90 |
0.024 0.026 0.026 0.027 |
0.027 0.029 0.028 0.028 |
0.21 0.22 0.22 0.23 |
|
|
4. |
Specified
Value IS 1367 Part-3 |
0.20– 0.55 |
N.A |
0.035 Max. |
0.035 Max. |
N.A |
|
H.T.S Bolt
27dia x 90 ( P. Cl. 10.9 ) RDSO/T-6909 (From Lot) |
0.33 |
-- |
0.024 |
0.022 |
-- |
|
|
H.T.S Bolt
27dia x 90 ( P. Cl. 10.9 ) RDSO/T-6909 (From Assembled Imp. SEJ) |
0.34 |
-- |
0.023 |
0.024 |
-- |
|
|
5. |
Specified
Value IS 1367 Part-6 |
0.58 Max. |
0.45 min. |
0.058 Max. |
0.048 Max. |
N.A |
|
H.T.S Nut (P.
Cl. 12) RDSO/T-6909 (From Lot) |
0.32 |
0.50 |
0.034 |
0.032 |
-- |
|
|
H.T.S Nut (P.
Cl. 12) RDSO/T-6909 (From
Assembled Imp. SEJ) |
0.33 |
0.52 |
0.032 |
0.030 |
-- |
|
|
6.
|
Specified Value IS
6649 Gr.45 C 8 |
0.40-0.50 |
0.60-0.90 |
0.040 Max |
0.040 Max |
0.15-0.35 |
|
Hardened Taper Washer RDSO/T-6912, RDSO/T-6913 |
0.44 0.43 |
0.66 0.68 |
0.032 0.030 |
0.031 0.029 |
0.23 0.24 |
|
|
7. |
Specified
Value IRS T- 42 Ref. IS 4072 Gr.
55Si7 |
0.50-0.60 |
0.70-1.00 |
0.050 Max |
0.050 Max |
1.50-2.00 |
|
Single Coil Spring Washer T-10773 |
0.54 |
0.82 |
0.031 |
0.033 |
1.68 |
|
|
8. |
Specified
Value IRS T- 10, IS 2062: 2011 Gr. E250 Quality : A |
0.23
Max |
1.50 Max |
0.045 Max |
0.045 Max |
0.40Max |
|
Plate Screw RDSO/T-3915,
RDSO/T-3916 |
0.20 0.17 |
1.08 1.10 |
0.034 0.033 |
0.029 0.030 |
0.22 0.23 |
|
|
9. |
Specified
Value IRS T- 10, IS
2062: 2011 Gr. E250 Quality : BR |
0.22
Max |
1.50 Max |
0.045 Max |
0.045 Max |
0.40Max |
|
Split Pin & Plain Washer |
0.20 |
1.14 |
0.032 |
0.030 |
0.25 |
PHYSICAL REPORT
|
S. No. |
Description of
Material as per Specification |
Tensile Strength (U.T.S) (Mpa) |
Elongation (%) |
Yield Stress (Mpa) |
Charpy Impact (J) |
Bend Test |
Remarks |
|
1. |
Specified
Value IRS T 10, IS 2062: 2011 Gr. E250 Quality
: BR |
410 Mpa (min.) |
23% (min.) |
250 Mpa min (< 20mm) 240 Mpa min (20-
40mm) |
27J (min.) |
2t |
|
|
MS Plates for M.S.Bracket RDSO/T-6905,
RDSO/T-6906, RDSO/T-6907 & RDSO/T-6908 Plate
Size 14mm Plate
Size 16mm Plate
Size 20mm Plate
Size 25mm |
452 460 468 465 |
27 28 26 28 |
268 266 273 275 |
30 29 28 31 |
OK |
Satisfactory |
|
|
2. |
Specified
Value IRS T 10, IS 2062: 2011 Gr. E250 Quality
: A |
410 Mpa (min.) |
23% (min.) |
24 Kgf/mm2 (Min) |
----- |
45° |
|
|
Plate Screw RDSO/T-3915, RDSO/T-3916 |
448 438 |
26 28 |
25 26 |
NA |
OK |
Satisfactory |
|
|
3. |
Specified ValueIRS
T 23 /IS-1875 , Cl 3 (Bolt), Cl 2A (Nut) |
Tensile Strength (U.T.S) 55 – 68 Kgf/mm2 |
Head Soundness At 300 No Crack |
Unscrewing 2kg. - 12kg. |
Drifting 1.5 times of original dia. (No crack) |
Remarks
|
|
|
Track Bolts
& Nuts assembly RDSO/T-6910,RDSO/T-6911, RDSO/T-8604 |
60 59 62 |
NA |
9 8 8 |
NA |
Satisfactory |
||
|
Track Bolts RDSO/T-6910,RDSO/T-6911, RDSO/T-8604 |
NA |
OK |
NA |
NA |
Satisfactory |
||
|
Track Nuts RDSO/T-6910,RDSO/T-6911, RDSO/T-8604 |
NA |
NA |
NA |
OK |
Satisfactory |
||
|
4. |
Specified ValueIS 1367 Part-3 |
Tensile Strength
(U.T.S) 1040 Mpa (min.)
|
Elongation (%) 9% (min) |
Proof Load 381 Mpa
|
Wedge Test 60 |
Hardness 32-39 RC |
Remarks |
|||
|
H.T.S Bolt (
P. Cl. 10.9 ) RDSO/T-6909
(From Lot) |
1088 |
13 |
OK |
OK |
34 |
Satisfactory |
||||
|
|
H.T.S Bolt (
P. Cl. 10.9 ) RDSO/T-6909 (From Assembled Imp. SEJ) |
1085 |
12 |
OK |
OK |
36 |
Satisfactory |
|||
|
5. |
Specified ValueIS 1367 Part-6 |
Hardness 27-36
HRC |
Remarks |
|||||||
|
H.T.S Nut (
P. Cl. 12) RDSO/T-6909
(From Lot) |
32, 30 |
Satisfactory |
||||||||
|
H.T.S Nut (
12 ) RDSO/T-6909 (From Assembled Imp. SEJ) |
33, 34 |
Satisfactory |
||||||||
|
6. |
Specified Value IS
6649 Gr.45 C 8 |
Hardness 35- 45 HRC |
Remarks |
|||||||
|
Hardened Taper Washer RDSO/T-6912, RDSO/T-6913 |
42, 39 |
Satisfactory |
||||||||
|
7. |
Specified Value IRS-42/ IS 4072 Gr. 55Si7 |
Hardness 43- 49 RC |
Flattening Test Decrease height
<0.5mm |
Twist Test No sign of fracture
through an angle of 900 |
Depth of De-curb 0.10 max |
Decompression Test |
Remarks |
|||
|
Single Coil Spring Washer T-10773 |
46 |
OK |
OK |
OK |
OK |
Satisfactory |
||||
|
8.
|
Specified Value IS:210 Gr.FG200 |
Hardness 180 – 220 BHN |
Tensile Strength
(U.T.S) 200 Mpa min. |
Remarks |
||||||
|
C.I. Chair RDSO/T-6904 |
195 |
234 |
Satisfactory |
|||||||
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