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

Basic Information
Place of Origin: China
Brand Name: ZHONGYUE
Certification: TUV, SGG, ISO9001
Model Number: DIN
Minimum Order Quantity: 10,000pcs
Price: USD0.5 to USD2.0
Packaging Details: 25kg/woven bag or carton, 36bags/ wooden pallet , 24pallets/container
Delivery Time: 15-40 days according to your order quantity
Payment Terms: L/C, T/T
Supply Ability: 100, 000 Piece Per week
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
High Light:

railroad bolts

,

steel bolts and nuts

 

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

 

High Hardness Oxide Black Oval Head Steel Rail Bolt 5.6 Grade For Railway 1

High Hardness Oxide Black Oval Head Steel Rail Bolt 5.6 Grade For Railway 2

 

Contact Details
Lucia