Mechanical Properties & Material Grading
| Model No. | Material Grade | Strength Class | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Pull-Out Resistance (kN) | Hardness (HB) | Cold Bending Performance |
|---|---|---|---|---|---|---|---|---|
| SS-Q235 | Q235 Carbon Steel | 4.6 | ≥400 | ≥240 | ≥22 | ≥60 | 190-210 | 90° without crack |
| SS-35# | 35# Medium Carbon Steel | 5.6 | ≥500 | ≥300 | ≥20 | ≥62 | 200-220 | 90° without crack |
| SS-45# | 45# Carbon Steel | 8.8 | ≥800 | ≥640 | ≥12 | ≥65 | 220-240 | 90° without crack |
| SS-40Cr | 40Cr Alloy Steel | 10.9 | ≥1000 | ≥900 | ≥9 | ≥70 | 240-260 | 90° without crack |
| SS-20MnTiB | 20MnTiB Boron Steel | 12.9 | ≥1200 | ≥1080 | ≥8 | ≥75 | 260-280 | 90° without crack |
Insulation Characteristics & Track Circuit Compatibility
| Model No. | Insulation Treatment | Insulation Resistance (MΩ) | Magnetic Permeability (μ) | Applicable Signal Frequency (Hz) | Compatible Sleeper Type | Core Insulation Advantage | Compliance Standards |
|---|---|---|---|---|---|---|---|
| SS-INS1 | CBC Insulating Mortar Coating | ≥50 | <300 | 50-400 | Concrete Sleepers | Pre-embedded integration; crack prevention | UIC 864, ISO 898-1 |
| SS-INS2 | Engineering Plastic Sleeve | ≥30 | <250 | 50-600 | Composite Sleepers | High vibration resistance | AREMA, GB/T 1222 |
| SS-INS3 | Dacromet + Insulation Film | ≥20 | <350 | 50-800 | Wooden/Concrete Sleepers | Dual protection against corrosion & current leakage | DIN 17221, EN 13481 |
| SS-INS4 | Ceramic-Coated Shank | ≥60 | <200 | 50-1000 | High-Speed Rail Sleepers | Stable performance for ATP systems | UIC 515-4, REACH |
| SS-INS5 | Basic Insulation Oil | ≥5 | <400 | 50-200 | Branch Line Sleepers | Cost-effective for low-signal-demand lines | BS 6497, ASTM A153 |
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