BG 60 Kg to RDSO Drg. No. T-6902,Alt. 2: Internal Inspection Report (Chemical test report) for Improved Switch Expansion Joints BG 60 Kg to RDSO Drg. No. T-6902,Alt. 2

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Internal Inspection Report (Chemical test report) for Improved Switch Expansion Joints BG 60 Kg to RDSO Drg. No. T-6902,Alt. 2

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

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