Lab test report of 10125mm/ 60Kg OR curved switch to drawing no. RT- 4219

Lab test report of 10125mm/ 60Kg OR curved switch to drawing no. RT- 4219


Physical test report

Sl. No.

Item

Yield Strength

Tensile Strength

Elongation Min%

Hardness

Charpy ‘V’ Notch (J)

Bend Test (2t) No Crack

Specified

Actual

Specified

Actual

Specified

Actual

Specified

Actual

Specified

Actual

1

*Bolts & Nut

IRS/T-23/67

55-68 Kg/mm2

60.20

59.64

2

*CI Block

(IS:210 Gr. FG/200)

200 Mpa (Min)

238.95260.90

160-220 BHN

195

197

3

**(20mm Thk. Plate)

Spherical Washer, Lug & Special Bearing Plate

240 Mpa (Min)

296.23337.27

410 Mpa (Min)

488.31516.73

23% (Min)

26.80% 32.59%

27 J (Min)

43

42

Satisfactory

4

**(16mm Thk Plate) M.S. Bracket & Stops

250 Mpa (Min)

299.09316.30

410 Mpa (Min)

484.91509.09

23% (Min)

31.59% 26.26%

27 J (Min)

32

32

Satisfactory

5

**(14mm Thk Plate) Slide Chair, Insulated Tie Plate (Extended), MS
Plate

250 Mpa (Min)

280.39344.91

410 Mpa (Min)

429.54537.09

23% (Min)

30.27% 28.19%

27 J (Min)

38

39

Satisfactory

6

**(12mm Thk Plate) MS Flat of Insulated Str. Bar, MS Flat Tie Bar
& Steel Shoulder

250 Mpa (Min)

302.64350.00

410 Mpa (Min)

466.65576.66

23% (Min)

26.71% 26.64%

27 J (Min)

38

35

Satisfactory

7

**(10mm Thk Plate) Reinforcing Strap

250 Mpa (Min)

262.93308.79

410 Mpa (Min)

417.50479.24

23% (Min)

30.76% 32.19%

27 J (Min)

37

35

Satisfactory

8

**(6mm Thk Plate) Supporting Plate of Slide Chair & Insulated Tie
Plate

250 Mpa (Min)

316.61305.64

410 Mpa (Min)

471.49501.64

23% (Min)

32.62% 34.27%

Satisfactory

 

 

* Sample of Charpy
Impact Test cannot be drawn.

** IS:2062:2011 Grade
E 250 Quality BR

*** IRS: T-16-81
& IS:2062:2011 Grade E250 Quality BR

A)      Drifting
Test of Nuts:-
Nuts have been subjected to this test as per
IRS/T-23/67 Class 12.2.1:-Satisfactory

B)     
Head Soundness Test of Bolts:- Bolts
have been subjected to this test as per IRS/T-23/67 Class 12.1.1:- Satisfactory

C)     
Screwing & Unscrewing Test of
Bolts/Nuts:-
The test have been carried out as per IRS/T-23/67
Class 14.1:- 
Satisfactory

 

Rivet:-

 

Sl. No.

Size

Shear Strength (Mpa)

Dump Test

1 & 2

Dia. 20mm

366.9, 368.2

Satisfactory

Specified

IS:1148

330 Mpa (Min)

No Crack

(As per Class 10 of IS:1148)

 

Sl. No.

Size

Shear Strength (Mpa)

Dump Test

1 & 2

Dia. 18mm

374.4, 368.7

Satisfactory

Specified

IS:1148

330 Mpa (Min)

No Crack

(As per Class 10 of IS:1148)

 

Magnetic Particle Test:-

This test been carried out on throughout the bend portion of Stock Rails
and Tongue Rails of 1 in 12 (Curved) 10125mm for Fan Shaped turnouts BG 60 Kg
Rails Drg. No. RDSO/T-4219Qty. : Satisfactory

USFD Resting Rails:-

1 in 12 (Curved) 10125mm for fan Shaped turnouts BG 60 Kg rails Drg. No.
RDSO/T-4219Qty. 

 

Sl. No.

Description of Rail

Qty. of Rail

USFD Testing

1.

Rail 60 Kg 13 Meter

88 Nos.

Were tested ultrasonically and found
satisfactory & each rail were examined visually and found free from
harmful surface defects.

 CHEMICAL ANALYSIS

Sl. No

Item Description

Specification

C%

Mn%

Si%

S%

P%

Specified

Actual

Specified

Actual

Specified

Actual

Specified

Actual

Specified

Actual

1.

(20mm Thk. Plate)

Spherical Washer, Lug & Special Bearing Plate

IS:2062:2011

Grade E 250

Quality BR

0.22 (Max)

0.152

0.156

1.50 (Max)

0.998

0.999

0.40 (Max)

0.189

0.198

0.045 (Max)

0.026

0.026

0.045 (Max)

0.020

0.019

2.

(16mm Thk. Plate)

M S Brackets & Stops

IS:2062:2011

Grade E 250

Quality BR

0.22 (Max)

0.152

0.152

1.50 (Max)

0.854

0.854

0.40 (Max)

0.189

0.202

0.045 (Max)

0.017

0.016

0.045 (Max)

0.020

0.020

3.

(14mm Thk. Plate)

Slide Chair, Insulated tie Plate(Extended)’ M S Plate

IS:2062:2011

Grade E 250

Quality BR

0.22 (Max)

0.146

0.147

1.50 (Max)

0.995

0.989

0.40 (Max)

0.193

0.189

0.045 (Max)

0.027

0.028

0.045 (Max)

0.020

0.021

4.

(12mm Thk. Plate)

M.S.Flat of Insulated Str. Bar’ M.S.Flat Tie Bar &
Steel Shoulder

IS:2062:2011

Grade E 250

Quality BR

0.22 (Max)

0.154

0.149

1.50 (Max)

0.846

0.859

0.40 (Max)

0.199

0.198

0.045 (Max)

0.016

0.016

0.045 (Max)

0.020

0.020

5.

(10mm Thk. Plate) Reinforcing Strap

IS:2062:2011

Grade E 250

Quality BR

0.22 (Max)

0.160

0.164

1.50 (Max)

0.842

0.835

0.40 (Max)

0.160

0.165

0.045 (Max)

0.020

0.019

0.045 (Max)

0.026

0.026

6.

(6mm Thk. Plate)

Supporting Plate of Slide chair & Insulated Tie Plate

IS:2062:2011

Grade E 250

Quality BR

0.22 (Max)

0.143

0.140

1.50 (Max)

1.215

1.214

0.40 (Max)

0.264

0.265

0.045 (Max)

0.032

0.028

0.045 (Max)

0.028

0.026

7.

Bolts

IRS/T-23/67 & IS:1875
CI 3

0.25-0.35

0.290

0.284

0.60-0.90

0.664

0.658

0.15-0.35

0.213

0.210

0.040 (Max)

0.023

0.022

0.040 (Max)

0.025

0.025

8.

Nuts

IRS/T-23/67 & IS:1875
CI 2A

0.20-0.30

0.272

0.265

0.60-0.90

0.785

0.773

0.15-0.35

0.238

0.230

0.040 (Max)

0.037

0.035

0.040 (Max)

0.035

0.035

9.

Single Coil Spring Washer

IRS/T-42/1988 &
IS:4072/1975 Gr55 Si7

0.50-0.60

0.510

0.506

0.80-1.00

0.938

0.934

1.50-2.00

1.611

1.619

0.050 (Max)

0.020

0.020

0.050 (Max)

0.022

0.023

10.

Rivet(Φ20mm)

IS:1148

0.23 (Max)

0.195

0.187

0.050 (Max)

0.034

0.027

0.050 (Max)

0.034

0.033

11.

Rivet(Φ18mm)

IS:1148

0.23 (Max)

0.207

0.209

0.050 (Max)

0.032

0.030

0.050 (Max)

0.035

0.037

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