Name: China Railroad Steel E Clip Manufacturers Suppliers Factory - Free Sample - GNEE RAIL
Brand: GNEE
SKU: 294858126

Railroad Steel E Clip

Railway Clip is used to fasten the rails to the underlying base plate together with the concrete sleeper. A variety of different types of heavy-duty clips are used to fasten the rails to the underlying baseplate or Sleeper, one common being the E Clip, which is shaped like a stubby paperclip. Another one is the SKL Tension Clamp, which is also the most widely used type all over the world. Others like KPO Clamp and Nabla Clip, also used in different situations.

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Description

Technical Parameters

↵Rail E Clip Fastening System

Railway E-clips are spring steel fasteners that secure rails to sleepers through elastic clamping force. Unlike bolted systems, they maintain constant pressure despite thermal expansion and dynamic loading. The following analysis is developed exclusively from commercial and technical literature, deliberately avoiding operational perspectives covered in previous discussions.

Technical Specifications:

Specification Parameter	DIN 17221 / European Practice	GB/T 1222 (Chinese Standard)	UIC / AREMA (Global Projects)
Primary Steel Grade	38Si7 / 55Si2Mn	60Si2MnA / 60Si2CrA	Spring Steel Alloy (Vendor Spec)
Critical Composition (Si)	1.50-2.00%	1.60-2.00%	Dependent on supply chain
Hardness Target (HRC)	42-47 (SKL variants)	44-48 (Standard E-clip)	42-48
Model Nomenclature	SKL 1, 3, 12, 14	E1609, E1809, E2006, E2007, E2055, E2063	e-Clip (Pandrol origin)
Clamping Force	~8-12 kN	≥950 kg (~9.3 kN)	Varies by insulator stack
Surface Treatment	Oil/Black	Oil, Oxide Black, Color Painting	Plain/Zinc/Dacromet

Performance Range:

Clamping force: 8–14 kN per clip (system-dependent)

Elastic deflection stroke: 8–18 mm

Fatigue endurance: 3–5 million cycles without fracture

Hardness specification: 44–48 HRC (Rockwell C scale)

Maintenance & Operational Perspective

Material Certification Requirements: Buyers must specify raw material pedigree. Grade 60Si2CrA provides superior hardenability over 60Si2MnA for high-cycle corridors; mill certificates per EN10204 are mandated for CRCC-certified projects .
Surface Engineering Selection: Coating choice determines logistics corrosion protection. Oxide black suits arid/intermodal storage (≤6 months); Dacromet®/zinc flake is specified for maritime transport or coastal inventory (≥18 months storage tolerance) .
Dimensional Tolerancing: Procurement drawings must lock leg diameter (Ø16/18/20mm) and free profile. E1609 (Ø16mm) vs E2091 (Ø20mm) are not interchangeable; ordering errors cause shoulder incompatibility