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ProductsAt present, the company has the ability to produce 50000 tons of rail buckle accessories annually. The product series includes various specifications of spring bars Gauge baffles, switch special pads, joint clamps for 43kg, 50kg, 60kg steel rails, various export products, etc
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AboutThe company was established in 1994 and is a production enterprise specializing in the research and development, production, and sales of railway line specific accessories
⚙️ Engineering Specifications
| Parameter | Grade B | Grade A | AREMA Minimum |
|---|---|---|---|
| Tensile Strength | 150,000 PSI | 120,000 PSI | 100,000 PSI |
| Material | SAE 1541 Carbon Steel | AISI 1035 | A36 |
| Coating | 85μm HDG (550g/m²) | 250g/m² Electro-Zinc | 200g/m² |
| Size Range | 1/2"-1-1/4" UNC | 1/2"-1" UNC | Limited |
| Torque Rating | 450 ft-lbs (Dry) | 350 ft-lbs | 300 ft-lbs |
| Salt Spray Test | 3,000+ hrs (ASTM B117) | 1,200 hrs | 1,000 hrs |
| Impact Toughness | 30J @ -40°F | 20J @ -20°F | 15J |
| Anti-Rotation | Integrated Square Neck | Hex Head Only | None |
⚠️ Critical Installation Parameters
| Bolt Size | Torque (Dry) | Torque (Lubricated) | Preload Force |
|---|---|---|---|
| 1/2" UNC | 180 ft-lbs | 150 ft-lbs | 25,000 lbf |
| 5/8" UNC | 320 ft-lbs | 260 ft-lbs | 42,000 lbf |
| 3/4" UNC | 450 ft-lbs | 370 ft-lbs | 65,000 lbf |
| 1" UNC | 780 ft-lbs | 640 ft-lbs | 110,000 lbf |
📜 Certifications & Compliance
North America: AREMA Ch.3, FRA §213.121
International: EN 14399-6, ISO 898-1
Material: ASTM A183 Grade B
Coating: ASTM A153 Class C
Testing: ASTM F606M, UIC 864-9
❓ Track Maintenance FAQs
Q1: Wood vs concrete sleeper torque difference?
A: Reduce torque 15% for concrete sleepers (use epoxy-coated washers)
Q2: Retorquing schedule for 39-ton axles?
A: 3 months initial → 6 months → then annually (per FRA Advisory)
Q3: HDG vs stainless steel in ballast zones?
A: HDG lasts 3x longer
If you have any needs, please feel free to consult us!
Tag:
AREMA Grade B Rail Bolts - Hot Forged High-Strength Track Bolts - 150,000 PSI Tensile (1/2" to 1-1/4" HDG Coated)
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Henan Xinda Railway Equipment Co., Ltd
Fax: +86-372-2615999
Tel: +86-18567891234
Email:info@xindarail.com
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