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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