Standard: EN 13674-1 · DIN 536-1 · AREMA · ASTM A759 · JIS E1101 · GB 2585 · GOST R 51685
A rail is designated by its profile, usually named after its mass per metre (S 49, UIC 60, R 65, JIS 50 N) or in American practice per yard. Railway rails have a tall web and a narrow head; crane rails (the A series of DIN 536, MRS, CR, KP and QU) are short and wide, with a heavy head to spread wheel loads.
F is the width of the foot, K the width of the head and H the overall height. A profile can carry several names: the same rail is UIC 60 in an international specification, 60E1 in EN 13674-1 and Vign 60 or 60 UNI in older national lists.
| Designation | Equivalents | F mm | K mm | H mm | G kg/m |
|---|---|---|---|---|---|
| A 45 | B no. 1 | 125.0 | 45.0 | 55.0 | 22.10 |
| A 55 | B no. 2 | 150.0 | 55.0 | 65.0 | 31.80 |
| A 65 | B no. 3, SD 65 (PL), JK 65 (CZ) | 175.0 | 65.0 | 75.0 | 43.10 |
| A 75 | B no. 4, SD 75 (PL) | 200.0 | 75.0 | 85.0 | 56.20 |
| A 100 | B no. 5, SD 100 (PL) | 200.0 | 100.0 | 95.0 | 74.30 |
| A 120 | B no. 6 | 220.0 | 120.0 | 105.0 | 100.00 |
| A 150 | B no. 7 | 220.0 | 150.0 | 150.0 | 150.30 |
| S 10 | – | 58.0 | 32.0 | 70.0 | 10.00 |
| S 14 | – | 70.0 | 38.0 | 80.0 | 14.00 |
| S 18 | – | 82.0 | 43.0 | 93.0 | 18.30 |
| S 20 | – | 82.0 | 44.0 | 100.0 | 19.80 |
| S 30 | JIS 30, ASCE 60 | 108.0 | 60.3 | 108.0 | 30.03 |
| S 33 | – | 105.0 | 58.0 | 134.0 | 33.47 |
| S 34 | – | 117.5 | 61.9 | 117.5 | 34.72 |
| S 41/10 | S 41 a | 125.0 | 67.0 | 138.0 | 41.38 |
| S 41/14 | – | 125.0 | 67.0 | 138.0 | 40.95 |
| S 49 | – | 125.0 | 67.0 | 149.0 | 49.43 |
| S 54 | – | 125.0 | 70.0 | 154.0 | 54.54 |
| S 64 | – | 150.0 | 74.0 | 172.0 | 64.92 |
| Vign 15 | – | 66.0 | 42.0 | 84.0 | 15.15 |
| Vign 26 | – | 100.0 | 50.0 | 110.0 | 26.27 |
| Vign 30 | – | 106.0 | 56.0 | 125.5 | 29.98 |
| Vign 36 | – | 115.0 | 58.0 | 128.0 | 36.54 |
| Vign 46 | U 33 | 134.0 | 62.0 | 145.0 | 46.36 |
| Vign 50 | U 50, SNCF | 140.0 | 65.0 | 153.0 | 50.88 |
| Vign 52 | RATP | 150.0 | 65.0 | 150.0 | 52.34 |
| Vign 55 | U 55 | 134.0 | 62.0 | 155.0 | 56.07 |
| Vign 60 | UIC 60, 60 UNI | 150.0 | 72.0 | 172.0 | 60.34 |
| 16 BR | – | 108.0 | 44.5 | 54.0 | 16.06 |
| 20 BR | – | 127.0 | 50.0 | 55.5 | 19.86 |
| 28 BR | – | 152.0 | 50.0 | 67.0 | 28.62 |
| 35 BR | – | 160.0 | 58.0 | 76.0 | 35.38 |
| 50 BR | – | 165.0 | 58.5 | 76.0 | 50.18 |
| BS 50 "O" | – | 100.0 | 52.4 | 100.0 | 24.83 |
| 56 CR | – | 171.0 | 76.0 | 101.5 | 56.81 |
| 89 CR | – | 178.0 | 102.0 | 114.0 | 89.81 |
| 101 CR | – | 165.0 | 100.0 | 155.0 | 100.38 |
| BS 110 A | – | 139.7 | 69.8 | 158.8 | 54.52 |
| BS 113 A | – | 139.7 | 69.9 | 158.8 | 56.40 |
| GX 40 | – | 127.0 | 63.5 | 127.0 | 39.80 |
| GX 42 | – | 131.8 | 65.1 | 131.8 | 42.16 |
| NP 46 | – | 120.0 | 76.0 | 142.0 | 46.55 |
| EB 50 T | – | 140.0 | 72.0 | 151.0 | 50.1 |
| EB 63 | – | 140.0 | 72.0 | 151.0 | 62.95 |
| UIC 54 | – | 140.0 | 72.2 | 159.0 | 54.43 |
| 36 UNI | – | 100.0 | 60.0 | 130.0 | 36.19 |
| 46 UNI | – | 135.0 | 65.0 | 145.0 | 46.79 |
| 50 UNI | – | 135.0 | 67.0 | 148.0 | 49.85 |
| 60 UNI | UIC 60, Vign 60 | 150.0 | 72.0 | 172.0 | 60.34 |
| CFFI-SBBI | – | 125.0 | 65.0 | 145.0 | 46.16 |
| CFFI-SBBIV | UIC 54 E | 125.0 | 69.5 | 161.0 | 53.80 |
| RN 45 | – | 130.0 | 66.0 | 142.0 | 44.84 |
| GCR 108 | – | 263.0 | 2x61 | 100.0 | 107.90 |
| Designation | Equivalents | F mm | K mm | H mm | G kg/m |
|---|---|---|---|---|---|
| ASCE 40 | – | 88.9 | 47.6 | 88.9 | 19.84 |
| ASCE 60 | S 30, JIS 30 | 108.0 | 60.3 | 108.0 | 30.03 |
| MRS 51 | 104 CR, 104 lb ASCE | 127.0 | 63.5 | 127.0 | 51.59 |
| MRS 52 | 105 CR, 105 lb ASCE | 131.8 | 65.1 | 131.8 | 52.09 |
| MRS 67 | CR 135, 135 lb ASCE | 131.8 | 76.2 | 146.0 | 66.97 |
| MRS 73 | AS 73 | 146.0 | 70.0 | 157.0 | 73.63 |
| MRS 85 | CR 171, PRI 85, 171 lb ASCE | 152.4 | 101.6 | 152.4 | 84.83 |
| MRS 86 | AS 86 | 165.0 | 102.0 | 102.0 | 85.60 |
| MRS 87 A | PRI 85R | 152.4 | 101.6 | 152.4 | 86.80 |
| MRS 87 B | 175 CR, 175 lb ASCE | 152.4 | 102.4 | 152.4 | 86.80 |
| MRS 125 | – | 180.0 | 120.0 | 180.0 | 125.00 |
| MRS 221 | – | 220.0 | 220.0 | 160.0 | 221.40 |
| MR 151 | PR 7 | 220.0 | 150.0 | 150.0 | 151.30 |
B1 head width, B2 head width at the gauge line, S web thickness, P base width, H height.
| Designation | Weight lb/yd | G kg/m | B1 mm | B2 mm | S mm | P mm | H mm |
|---|---|---|---|---|---|---|---|
| CR 104 | 104.0 | 51.59 | 63.5 | 63.5 | 25.4 | 127.0 | 127.0 |
| CR 105 | 105.0 | 52.09 | 65.1 | 65.1 | 23.8 | 131.8 | 131.8 |
| CR 135 | 135.0 | 66.97 | 87.3 | 76.2 | 31.7 | 131.8 | 146.0 |
| CR 171 | 171.0 | 84.83 | 109.2 | 101.6 | 31.7 | 152.4 | 152.4 |
| CR 175 | 175.0 | 86.80 | 107.9 | 102.4 | 38.1 | 152.4 | 152.4 |
| Designation | Equivalents | F mm | K mm | H mm | G kg/m |
|---|---|---|---|---|---|
| JIS 12 | – | 69.8 | 38.1 | 69.8 | 12.20 |
| JIS 15 | ASCE 30 | 79.4 | 42.9 | 79.4 | 15.20 |
| JIS 22 | AS 22 | 93.7 | 50.8 | 93.7 | 22.90 |
| JIS 30 | ASCE 60, S 30 | 108.0 | 60.3 | 107.8 | 30.03 |
| JIS 37 | – | 122.2 | 62.7 | 122.2 | 37.20 |
| JIS 40 N | – | 122.0 | 64.0 | 140.0 | 40.90 |
| JIS 50 | – | 127.0 | 67.9 | 144.5 | 50.40 |
| JIS 50 N | – | 127.0 | 65.0 | 153.0 | 50.40 |
| JIS 60 | – | 145.0 | 65.0 | 174.0 | 60.80 |
| CR 73 | – | 140.0 | 100.0 | 135.0 | 73.30 |
| CR 100 | – | 155.0 | 120.0 | 150.0 | 100.20 |
| AS 22 | JIS 22 | 93.7 | 50.8 | 93.7 | 22.90 |
| AS 31 | – | 108.0 | 63.5 | 117.0 | 31.51 |
| AS 41 | – | 127.0 | 63.5 | 137.0 | 40.72 |
| AS 47 | – | 127.0 | 69.9 | 141.0 | 46.63 |
| AS 50 | – | 127.0 | 69.9 | 154.0 | 50.80 |
| AS 53 | – | 146.0 | 69.9 | 157.0 | 53.08 |
| AS 60 | – | 146.0 | 69.9 | 170.0 | 60.99 |
| RE 68 | – | 152.4 | 74.0 | 186.0 | 67.62 |
| AS 73 | MRS 73 | 146.0 | 70.0 | 157.0 | 73.63 |
| AS 86 | MRS 86 | 165.0 | 102.0 | 102.0 | 85.60 |
| P 24 | R 24 | 92.0 | 51.0 | 108.0 | 24.90 |
| P 43 | R 43 | 114.0 | 70.0 | 140.0 | 44.65 |
| P 50 | R 50 | 132.0 | 70.0 | 152.0 | 51.67 |
| P 65 | R 65 | 150.0 | 75.0 | 180.0 | 64.72 |
| 52 kg | IRS 52 | 136.0 | 67.0 | 156.0 | 51.89 |
| ISCR 80 | QU 80 | 130.0 | 80.0 | 130.0 | 63.70 |
| ISCR 100 | QU 100 | 150.0 | 100.0 | 150.0 | 89.02 |
| ISCR 120 | QU 120 | 170.0 | 120.0 | 170.0 | 118.10 |
| ISCR 140 | – | 170.0 | 140.0 | 170.0 | 146.95 |
| Designation | Equivalents | F mm | K mm | H mm | G kg/m |
|---|---|---|---|---|---|
| P 24 | R 24 | 92.0 | 51.0 | 108.0 | 24.90 |
| P 43 | R 43 | 114.0 | 70.0 | 140.0 | 44.65 |
| P 50 | R 50 | 132.0 | 70.0 | 152.0 | 51.67 |
| P 65 | R 65 | 150.0 | 75.0 | 180.0 | 64.72 |
| KP 70 | QU 70 | 120.0 | 70.0 | 120.0 | 52.80 |
| KP 80 | QU 80, DPS 80, ISCR 80 | 130.0 | 80.0 | 130.0 | 63.70 |
| KP 100 | QU 100, DPS 100, ISCR 100 | 150.0 | 100.0 | 150.0 | 89.02 |
| KP 120 | QU 120, DPS 120, ISCR 120 | 170.0 | 120.0 | 170.0 | 118.10 |
| DPS 140 | ISCR 140 | 170.0 | 140.0 | 170.0 | 146.95 |
| KP 140 | – | 190.0 | 140.0 | 190.0 | 153.49 |
| KB 100 | – | 132.0 | 100.0 | 138.0 | 81.34 |
| JK 65 | A 65, SD 65 (PL) | 175.0 | 65.0 | 75.0 | 43.10 |
| JK 85 | – | 200.0 | 85.0 | 100.0 | 80.46 |
| JK 120 | – | 220.0 | 120.0 | 167.0 | 179.00 |
| JKL 55 | – | 100.0 | 55.0 | 85.0 | 29.60 |
| JKL 65 | – | 115.0 | 65.0 | 90.0 | 37.70 |
| JKL 80 | – | 140.0 | 80.0 | 95.0 | 49.90 |
| JKL 100 | – | 170.0 | 100.0 | 105.0 | 67.60 |
| JKL 120 | – | 200.0 | 120.0 | 167.0 | 136.00 |
| PR 8 | – | 110.0 | 72.0 | 138.0 | 41.38 |
| T | – | 128.0 | 64.0 | 150.0 | 49.71 |
| R | – | 132.0 | 100.0 | 138.0 | 62.17 |
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