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High Hardness Oxide Black Oval Head Steel Rail Bolt 5.6 Grade For Railway

Categories Railway Bolt
Brand Name: ZhongYue
Model Number: DIN
Certification: ISO9001:2015
Place of Origin: China
MOQ: 5000pcs
Price: Negociable
Payment Terms: T/T, 30% in advance
Supply Ability: 100, 000 Piece Per week
Delivery Time: 15-40 days according to your order quantity
Packaging Details: 25kg/woven bag or carton, 36bags/ wooden pallet , 24pallets/container
Heat Treatment: Tempering, Hardening, Spheroidizing
Standards: DIN, JIS, ISO, ANSI, ASME, BS, AS
Customization: Available
Certificates: ISO9001:2008, ISO14001:2004
Sample: Available
Material: Q235, 35#, 45#, 40Cr
Surface treatment: Plain, Oxide Black, HDG, Oil, Paint
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High Hardness Oxide Black Oval Head Steel Rail Bolt 5.6 Grade For Railway


High Hardness Oxide Black Oval Head Steel Rail Bolt 5.6 Grade For Railway


Standard:DIN, JIS, ISO, ANSI, ASME, BS, AS

Grade:4.8/ 8.8/ 10.9/ 12.9

Dimensions:M8, M10, M12, M14, M16, M18, M20, M22, M24 and so on

Surface Treatment:Zinc-plated, Plain, Black Anodize, Dacroment


Grade

4.6

5.6

8.8

10.9

Material

Q235

35#

45#

40Cr

Mechanical properties

Tensile strength: ≥400Mpa

Tensile strength:≥500Mpa

Tensile strength:≥800Mpa

Tensile strength:≥1000Mpa

Yield strength:≥240Mpa

Yield strength:

≥300Mpa

Yield strength:≥640Mpa

Yield strength:≥900Mpa

Elongation:≥22%

Elongation:≥20%

Elongation:≥12%

Elongation:≥9%

Cold bending: 90 degree without crack

Cold bending:

90 degree without crack

Cold bending:

90 degree without crack

Cold bending:

90 degree without crack


Sticking to our quality first policy, ZHONGYUE pays great attention to quality control management. We have been granted ISO9001-2008 certificates and have received the production license of China's Railway Ministry on railway products. We have a full set of inspection instruments to ensure all our railway bolt products are of high quality and up to customers' requirements.

As a leading manufacturer of rail fastening based in China, ZHONGYUE also produces many other railway fasteners, such as track bolt, track spike, sleeper screw, rail anchor, rail joint bar, tie plate, rail clip, elastic rail clip, SKL tension clamp, rail shoulder, and so on.


Aplication


Railway, Mining, Bridge, Construction and so on


Production Procedure


Raw material —— Wiredrawing —— Cutting the wire rod to length —— forming the head —— cutting Edge —— Heat Treatment —— Surface treatment —— Final inspection —— Packaging —— Shipment


Production process 2.jpg


Surface Treatment

  1. plain (oiled)
  2. color paint
  3. oxide Black (most choice)
  4. galavazing
  5. DHG

Inspection machine

  1. Brinell Hardness Tester
  2. Carbon and Sulfur Analyzer
  3. Rockwell Hardness Machine
  4. Automatic Impact Testing Machine
  5. Metallographic Microscope
  6. Automatic High-speed Analyzer
  7. Fatigue Testing Machine
  8. Metallographic Specimen Polishing Machine
  9. Metallographic Specimen Pointing Machine

Package



Product Tags:

railroad bolts

  

steel bolts and nuts

  
Quality High Hardness Oxide Black Oval Head Steel Rail Bolt 5.6 Grade For Railway for sale
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