UIC50 (50E1) Rail EN 13674 | Light-Medium Standard Gauge Steel Rail

Rail & Fittings, Steel Rail

UIC50 (50E1) Rail EN 13674 | Light-Medium Standard Gauge Steel Rail

UIC50 rail, officially designated as 50E1 profile, is a light-medium flat-bottom rail defined under EN 13674-1 for 1435mm standard gauge railway networks. It fills the gap between lightweight rail and medium-heavy UIC54 rail, offering an economical solution for routes with moderate axle loads and medium-low traffic volume.

UIC50 (50E1) rail features mature cross-section design and great compatibility with global standard rail fasteners, sleepers and fishplates. R260 is the dominant steel grade for this profile, with stable pearlitic microstructure, reliable weldability and balanced mechanical performance. It is widely specified for regional branch railways, industrial sidings, port auxiliary lines and suburban transit projects across Europe, the Middle East, Southeast Asia and Africa.

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Product Detail

Chemical Component

Standard & Dimension Table

Executive Standard：EN 13674-1 Rail Profile：UIC50 / 50E1 Rail Applicable Track Gauge：1435mm Standard Gauge

Parameter	Specification
Theoretical Weight	50.18 kg/m
Total Rail Height	148 mm
Rail Base Width	132 mm
Rail Head Width	67 mm
Web Thickness	15.0 mm

Steel Grade Introduction — R260

R260 is the standard pearlitic carbon-manganese rail grade for UIC50 (50E1). Core Advantages:

Cost-effective and mass-producible with consistent quality
Balanced hardness and toughness for medium-light traffic operation
Good ductility and outstanding on-site welding performance
Low overall maintenance cost for branch & industrial lines
Compatible with all standard UIC fastening systems

Chemical Composition (R260)

Element	Content Range (%)
C (Carbon)	0.60 ~ 0.82
Si (Silicon)	0.15 ~ 0.50
Mn (Manganese)	0.70 ~ 1.20
P (Phosphorus)	≤ 0.035
S (Sulfur)	≤ 0.035

Mechanical Properties （EN 13674-1）

Mechanical Index	Standard Value (R260)
Tensile Strength	≥ 880 MPa
Elongation	≥ 9 %
Rail Head Hardness	260–310 HB

Application Scenarios

UIC50 (50E1) standard gauge rail is widely used for light & medium-load railway construction and renewal:

Regional railway branch lines and suburban transit routes
Factory dedicated tracks, industrial sidings and logistics yards
Port auxiliary railway lines and cargo handling tracks
Low to medium volume mixed-traffic lines
Budget-friendly railway renovation projects in Europe, Middle East, Southeast Asia & Africa