JIS 50kg Rail
Product Overview
JIS 50kg rail (also called JIS 50PS rail) is a precision-engineered rail designed for moderate-heavy industrial applications, with a nominal weight of 50.4 kg/m. Classified under JIS E 1103-91(the latest version updated to JIS E 1101:2015 ), it features a wider head (67.87 mm) and thinner web (14.29 mm) compared to its heavy rail counterpart (JIS 50N), making it ideal for cost-effective yet reliable performance in factory logistics, crane systems, and temporary railway lines.

Key Features
Dimensions:
Weight: 50.4kg/m
Head Width: 67.87 mm
Rail Height: 144.46 mm
Base Width: 127 mm
Web Thickness: 14.29 mm
Length: customized from 6m to 24m.
Optional Steel Grades:
55Q | 50Mn | U71Mn(Material details are at the bottom)
Standards: JIS E 1101

Applications
Industrial Transport Systems
Factory internal railways for material handling (e.g., steel mills, lumber yards).
Transfer car tracks in manufacturing plants.
Mining & Quarry Operations
Light-duty haulage lines for coal/ore transport (narrow-gauge applications).
Tunnel construction temporary tracks.
Agricultural & Forestry Use
Crop transport lines in large-scale farms.
Timber logistics in mountainous areas.
Urban Light Rail
Auxiliary tracks for tramway maintenance depots.
Tourist heritage railway lines (e.g., 30km/h speed limit sections).
Materials:
………………………………………………………………………………………………………………………………………………………………………………………………
55Q | Mechanical property | Chemical composition(%) | |||||||||
Yield strength | Tensile strength | Elongation | Hardness | C | Si | Mn | S | P | |||
MPa | kg/mm² | MPa | kg/mm² | min | HBW | ≤ | ≤ | ||||
≥ | ≥ | ≥ | ≥ | ≥ | |||||||
685 | 69 | 197 | 0.50-0.60 | 0.15-0.35 | 0.60-0.90 | 0.04 | 0.04 |
50Mn | Mechanical Property | Chemical Composition | ||||||||||||
Yield strength | Tensile strength | Elongation | Hardness | C | Si | Mn | S | P | Cr | Ni | Cu | |||
MPa | kg/mm² | MPa | kg/mm² | min | HB | ≤ | ≤ | ≤ | ≤ | ≤ | ||||
≥880 | 9% | 0.48-0.56 | 0.17-0.37 | 0.70-1.00 | 0.035 | 0.035 | 0.25 | 0.25 | 0.25 |
U71Mn | Mechanical Property | Chemical Composition | ||||||||||||
Yield strength | Tensile strength | Elongation | Hardness | C | Si | Mn | S | P | Cr | Ni | Cu | |||
MPa | kg/mm² | MPa | kg/mm² | min | HB | ≤ | ≤ | ≤ | ≤ | ≤ | ||||
≥880 | 9% | 0.65-0.76 | 0.15-0.35 | 1.10-1.40 | 0.03 | 0.03 | 0.25 | 0.25 | 0.25 |
Why Choose Glory Rail?
As a leading rail Supplier in China, we offer competitive pricing and rapid delivery. Our JIS Standard rail track is trusted globally for its consistent quality, safety, and we have more than 15 years experience focused on steel rails.
Explore our full range of steel rails solutions and request a quote today. Partner with us for reliable, high-performance rails that drive efficiency in your operations.