Railway Products Wheels, Axles & Wheel Sets Rails
Durgapur Steel Plant
|
Item |
Weight per piece |
Wheel tread dia |
Axle load |
|
Diesel Loco Wheel |
528 |
1097 |
|
|
BG Coach Wheel |
384 |
920 |
|
|
13T BG Coach Wheel Set |
1072 |
915 |
13.00 |
|
16T AC Wheel Set |
1092 |
915 |
16.25 |
|
IR-20 Bogie Wheel |
333 |
890 |
|
|
BOX Wheel Set |
1343 |
1000 |
20.00 |
|
BOX N Wheel Set |
1430 |
1000 |
22.90 |
|
BOX N Loose Wheel |
473 |
1000 |
|
|
BOX N Loose Axle |
552 |
|
22.90 |
|
16T Loose Axle |
378 |
|
16.25 |
|
13 T Loose Axle |
363 |
|
13.00 |
All the above items are as per the relevant drawings
Chemical Composition
|
Specification |
C% max |
Mn % max |
P% max |
S% max |
Si% |
|
IRS: R-16/ 95* |
0.37 |
1.12 max |
0.040 |
0.040 |
0.15-0.46 |
|
IRS: R-19/ 93** |
0.52 |
0.60-0.80 |
0.030 |
0.030 |
0.15-0.40 |
|
IRS: R-34/ 99*** |
0.57-0.67 |
0.60-0.85 |
0.030 |
0.030 |
0.15 min |
*P+S = 0.07 max
**For IRS:R-19/93 Hydrogen content £ 3ppm (Liquid steel)
*** For IRS: R-34/99 Hydrogen content £ 2.5 ppm
Mechanical Properties
|
Specification |
Yield Strength |
Tensile Strength N/mm2 |
% Elongation |
Impact Test |
|
|
IRS: R-16/ 95 |
Normalised |
320 |
550-650 |
22 min |
25 min |
|
Quenched |
350 |
550-700 |
24 min |
40 min |
|
|
IRS: R-19/ 93 |
50% of UTS |
820-940 |
14 min |
15 min |
|
|
IRS: R-34/ 99 |
50% of UTS |
775-900 |
11-13 min |
10 min |
|
For IRS: R-19/93: Hardness range- 241 to 277 BHN.
For IRS: R-34/99: Hardness range on outside face of rim: 300 - 341 BHN. On hub face of the wheel, hardness shall not exceed 293 BHN.
Wheels are 100% rim-sprayed, tempered and hardness tested along with ultrasonic testing in IRS: R-19/93 and IRS: R-34/99 specifications.
Applications
|
Specification |
Application |
|
IRS: R-34/99 |
Diesel Loco Wheels |
|
IRS: R-19/93 |
BG Coaching and other wheels |
|
IRS: R-16/95 |
Axles |
