GOST Rails Collection
This page presents the common GOST rail profiles we supply: P50, P65, P75 and the KP family (KP70, KP80, KP100, KP120, KP140). Standard lengths and made-to-order options are available, including head-hardening and wear-resistant treatments. Each shipment can be accompanied by Mill Test Certificates (MTC) and CAD section drawings.
| Rail Type | Height A (mm) | Base F (mm) | Head Width C (mm) | Web t (mm) | Steel Grade | Mass (kg/m) |
|---|---|---|---|---|---|---|
|
P50
🔍
P50 Rail Drawing
|
152 | 132 | 72 | 16 | 50Mn/U71Mn | 51.8 |
|
P65
🔍
P65 Rail Drawing
|
180 | 150 | 75 | 18 | 50Mn/U71Mn | 64.88 |
|
P75
🔍
P75 Rail Drawing
|
192 | 150 | 75 | 20 | 50Mn/U71Mn | 74.41 |
|
KP70
🔍
KP70 Rail Drawing
|
120 | 120 | 70 | 23 | U71Mn | 52.8 |
|
KP80
🔍
KP80 Rail Drawing
|
130 | 130 | 80 | 28 | U71Mn | 63.96 |
|
KP100
🔍
KP100 Rail Drawing
|
150 | 150 | 100 | 34 | U71Mn | 88.96 |
|
KP120
🔍
KP120 Rail Drawing
|
170 | 170 | 120 | 40 | U71Mn | 118.1 |
|
KP140
🔍
KP140 Rail Drawing
|
170 | 170 | 140 | 58 | U71Mn | 141.7 |
Materials & Treatment
Materials
Rails are supplied in standard carbon–manganese rail steels and, for high-wear or heavy-duty applications, in micro-alloyed or specially heat-treated wear-resistant grades. Typical commercial grades include 50Mn, U71 Mn, U75V; head-hardened or higher-strength variants (applicable GOST designations) are available on request to meet specific service conditions.
Heat treatment & surface treatment
Available treatments include rail head hardening (head-hardening), surface hardening and other tailored thermal treatments intended to improve wear resistance and fatigue life. Specify required treatment type and target hardness in the purchase order so that process parameters and acceptance criteria can be confirmed.
Typical Applications
Heavy-haul mining mainlines and branch lines
Suitable profiles: P65, P75, KP100 and heavier. Recommended for routes with very high axle loads, frequent loading cycles and elevated abrasion/impact conditions.
Crane runways and gantry/portal crane supports
Suitable profiles: KP100, KP120, KP140 or dedicated crane rail sections. Used where concentrated wheel loads and fatigue resistance are principal design drivers.
Frequently Asked Questions
Q: What is the difference between P and KP series?
A:P-series are conventional GOST rail profiles commonly used for general trackwork; KP series are regional/variant profiles often used for crane or heavy-duty applications — check CAD for exact geometry.
Q: Can you bundle GOST rails with matching fishplates and bolts?
A:Yes — we can supply matched splice bars, bolts, pads and full fastening kits to suit each profile.
Q: What is typical lead time?
A:Stocked items ship faster (days–weeks); custom heat-treated or large orders typically require longer lead time (weeks–months). Confirm per inquiry.
After-Sales & Warranty
Warranty: Typical material warranty 12 months from delivery under normal use — subject to contract.
Inspection & Claims: Third-party inspection on request; confirmed manufacturing defects handled by replacement, repair or pro-rata settlement per contract.
Response SLA: Initial acknowledgement within 48 hours; corrective action proposal within 72 hours for valid quality claims.
Spare Parts & Service: Fast supply of matching fishplates, bolts, pads and fastening kits; technical assistance for installation and welding.