Composite Railway Tie Specification

Composite Railway Tie

Composite railway ties, also referred to as composite rail sleepers or synthetic railway ties, are made from advanced materials like HDPE, polyethylene, and synthetic resins. These ties are designed to offer exceptional strength, durability, and resistance to environmental factors such as moisture, UV exposure, and chemical degradation. GNEE Rail stands out as a trusted manufacturer of rail fasteners and composite sleepers, particularly focusing on materials like HDPE, FFU synthetic, and polyethylene. Our products meet rigorous international standards such as AREMA, BS, and UIC, ensuring reliability and safety. With exports to more than 160 countries, we provide customized solutions to meet specific technical and design requirements for diverse rail systems.

Composite Railway Tie Specification

No.	Test Item	CJ/T 399-2012 Technical Requirement	JIS E1203 Rrequirement	Unit	GNEE Steel
1	Bending Strength	≥70	≥70	MPa	1#	2#	3#
					124	126	117
2	Flexural modulus	≥6	≥6	GPa	4#	5#	6#
					10	11	13
3	Longitudinal com pression strength	≥40	≥40	MPa	7#	8#	9#
					107	50	93
4	Shear strength	≥7	≥7	MPa	10#	11#	12#
					11	10	12
5	Adhesive shear strength	≥7(Base-material breakage)		MPa	13#	14#	15#
					10	8	12
6	Water absorption	≤10	≤10	Mg/cm3	16#	17#	18#
					4	3	4
7	The finished product resists bending load	≥170	≥170	kN	19#
					210
8	Screw spikes pullout strength	≥40	≥30	kN	20#	21#	22#
					44	46	58
9	Mass density	0.74±0.10	0.74±0.10	g/cm3	23#	24#	25#
					0.72	0.65	0.68
10	Fatigue performance	105 times,No abnormality		/	26#
					105 times,No abnormality
11	Flame retardant	After the ignition source is removed, there is no visible flaming or continuous flaming of the sample, but the front of the flame does not exceed the 25mm mark		/	27#	27#	27#
					After the ignition source is removed, there is no visible flaming or continuous flaming of the sample, but the front of the flame does not exceed the 25mm mark	After the ignition source is removed, there is no visible flaming or continuous flaming of the sample, but the front of the flame does not exceed the 25mm mark	After the ignition source is removed, there is no visible flaming or continuous flaming of the sample, but the front of the flame does not exceed the 25mm mark
12	breakdown voltage	≥20	≥20	kV	30#	31#	32#
					Thickness: 20mm	Thickness: 20mm	Thickness: 20mm
					35 No breakdown	35 No breakdown	35 No breakdown
13	Surfance resistance	≥1*1010	≥1*1010	Ω	33#	34#	35#
					4.1*1015	4.1*1015	4.9*1015
Remark	1. Breakdown voltage: Sample size: 100*80*20mm (length*width*thickness), using unequal diameter electrodes in the air, ambient temperature: 20ºC, humidity: 40%. 2. Surface resistance: sample size: 100*100*4mm (length*width*thickness), ambient temperature: 20ºC, humidity: 40%, test voltage: 1000V. 3. Underlined items are unqualified items;

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