Model NO.
Nabla
Warranty
>3 Years
Bolt Grade
5.6
Color
Customized
Charge Time
Spring Steel Railway Nabla Clamp
Age
Spring Steel Railway Nabla Clamp
Power
Spring Steel Railway Nabla Clamp
Transport Package
Woven Bag and Wood Pallet
Specification
NF
Trademark
ZBRF
Origin
China
Production Capacity
600t/Month
Certification:
NF
Type:
Spring Steel Railway Nabla Clamp
Material:
1.60si2mna 2.60si2cra 3.55si2mn 4.38si7
Surface Treatment:
1. Plain (Oiled) 2. Color Paint 3. Oxide Black 4.
Application System:
1. Nabla Clip 2. Insulator 3. Stud Bolts with Nuts
Part:
Rail Clip

We produce Nabla spring clips according to NF stanard.
| Nabla clip | ||||
| Material | 60Si2MnA | 60Si2CrA | 55Si2Mn | 38Si7 |
| Chemical composition(%) | C:0.56-0.64, | C:0.56-0.64, | C:0.52-0.60, | C:0.35-0.42, |
| Mn:0.60-0.90, | Mn:0.40-0.70, | Mn:0.60-0.90, | Mn:0.50-0.80, | |
| Si:1.60-2.00, | Si:1.40-1.80, | Si:1.50-2.00, | Si:1.50-1.80, | |
| Cr:≤0.35, | Cr:0.70-1.00 | Cr:≤0.35 | ||
| P:≤0.03, | P:≤0.03, | P:≤0.03, | P:≤0.03, | |
| S:≤0.03 | S:≤0.03 | S:≤0.03 | S:≤0.03 | |
| Hardness | 42-47HRC | |||
Zhongbo, as a specialized rail fastener manufacturer, provides a complete line of products, including rail fastening, anchor, rail joint, rail clip, rail screw, anchor bolt, rail clamp plate, rail fishplate, and fishplate bolt for connecting rail tracks.
We also make rail fastenings for crane rail and elevator guide rail, along with other related products. We manufacture according to GB/TB (Chinese national standards and railway standards), AREA, UIC, BS, DIN, ASTM, and AS standards.
Our products are mainly made through hot forging.
The threads of rail screw spikes are made by hot rolling with special threading machines.
We produce metric threads, BS, BSW, TR thread, or round threads.
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