R350HT UIC60 Rail 60E1 EN 13674 | Heat Treated Heavy Rail

Rail & Fittings, Steel Rail

R350HT UIC60 Rail 60E1 EN 13674 | Heat Treated Heavy Rail

R350HT UIC60 rail (60E1 profile) is a premium head heat-treated heavy rail manufactured strictly according to EN 13674-1 European standards. As an upgraded grade compared with conventional R260 rail, R350HT features refined pearlitic microstructure, higher surface hardness and superior rolling contact fatigue resistance.

Designed specifically for high-frequency operation and heavy-haul railway lines, R350HT UIC60 rail effectively reduces rail head wear, shelling and crack propagation under long-term heavy axle loads. It is the preferred solution for mainline freight corridors, busy mixed-traffic routes and high-demand standard gauge railway projects across Europe, the Middle East, Africa and Southeast Asia, greatly extending service life and lowering overall track maintenance costs.

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Product Detail

Chemical Component

Standard & Dimension Parameters

Executive Standard: EN 13674-1

Rail Profile: UIC60 / 60E1

Applicable Gauge: 1435mm Standard Gauge

Item	Specification
Theoretical Weight	60.21 kg/m
Total Rail Height	172 mm
Rail Base Width	150 mm
Rail Head Width	72 mm
Web Thickness	16.5 mm
Bottom Flange Thickness	20.0 mm

Steel Grade Introduction — R350HT

R350HT is a professional head heat-treated carbon-manganese rail steel defined by EN 13674-1. Through precise online heat treatment process, the rail head obtains uniform high-hardness layer while retaining excellent internal toughness, achieving the perfect balance of wear resistance and anti-fatigue performance.

High resistance to rolling contact fatigue and surface spalling
Outstanding wear resistance under continuous heavy freight loads
Stable dimensional stability for long-term high-frequency operation
Low defect rate and excellent on-site welding performance
Significantly longer service life than ordinary R260 untreated rail

Chemical Composition ( EN 13674-1)

Element	Content Range (%)
C (Carbon)	0.72 – 0.80
Si (Silicon)	0.15 – 0.58
Mn (Manganese)	0.70 – 1.20
P (Phosphorus)	≤ 0.025
S (Sulfur)	≤ 0.025

Mechanical Properties ( EN 13674-1)

Mechanical Index	Standard Value (R350HT)
Tensile Strength	≥ 1180 MPa
Yield Strength	≥ 680 MPa
Elongation	≥ 8%
Rail Head Hardness	350 – 390 HB

Application Scenarios

R350HT UIC60 heat-treated rail is specially engineered for high-load and high-frequency standard gauge railway infrastructure:

Heavy-haul freight main lines with large daily traffic volume
Busy passenger-freight mixed traffic trunk lines
Port terminals, logistics hubs and industrial heavy transport railways
Urban rail transit trunk lines requiring low maintenance frequency
Key railway renovation and upgrading projects in Europe, Middle East, Africa and Southeast Asia