Hot Steel Forged Rail Wheels 12 Inches 4140 Material 490 Hb Hardness

Detailed specification of Hot Steel Forged Rail Wheels 12 Inches 4140 Material 490 Hb Hardness

double and single flange mobile rail steel wheel

• 1. Material: cast steel or cast iron;

      Carbon steel:C45, C50, C55, C60, 4330, C35, 65Mn

      Alloy steel:4140, 42CrMo, 40CrNiMo, 4340, 34CrNiMo6

• 2. Constitute: two wheels, one axle, four bearings, and other parts;
• 3. Loading capacity: 1-300 tons, can be customized.
• 4. The type of the wheels: single flange wheel, double flange wheel, hollow wheel sets and solid wheel sets;
• 5. The diameter of the wheels: 300mm, 350mm, 400mm, 450mm;500mm; 900mm, etc.
• 6) Heat treatment: normalizing, Q&T ,Surface and rim quenching with depth: 5-20mm
  7) Measuring & testing equipment: Projecting profile, roughness tester, hardness tester, concentricity tester ect, UT ,MT
  8) Size:Customized designs are available.
  9) Inspection:In-house and the third party.

The difference and comparison of forged wheels and cast wheels
1. From the perspective of object shape transformation:

Casting a wheel is to liquefy solid metal, and then put the liquid metal without shape into a mold to get something of different shape (solid-liquid-solid).

Forged wheels are solids that turn one shape solid into another. That is, solids change from one shape to another at high temperatures (solid-solid).

2. In terms of focus:

Casting a wheel is the process of casting molten metal into a model to obtain a casting. The foundry major focuses on the metal smelting process and the control of the process during the casting process

Forged wheels are plastic forming in solid state, which can be divided into hot working and cold working. Such as extrusion, drawing, pier thickening, punching, etc. belong to forging.

3. In terms of molding speed:

Casting the wheel is a one-time molding, the molten liquid metal fills the cavity and cools, and pores are easily generated in the middle of the part.

Forged wheels are formed slowly, mainly by extrusion at high temperature. The grains in the part can be refined.

4. In terms of performance differences:

Cast steel is brittle in performance and cannot be heat treated.

Forged steel has a finer structure, good toughness and strength, and can be subjected to various heat treatments.

Advantages of cast wheels: low price, short production cycle; disadvantages: low strength, easy to shatter after severe impact; enough for family car owners who do not have too many requirements for control and pursue economical benefits.

Advantages of forged wheels: light weight, good heat dissipation, high strength, not easy to be crushed after impact, higher safety, strong plasticity, and can be customized at will; Disadvantages: slightly higher price, long production cycle; forged wheels are suitable for the pursuit of performance, control and individuality.

Strength of Railway wheel dimensions for Catenary and Track maintenance vehicles

1. Forging production, longer lifespan, for smaller quantity, free forging, for big quantity, precision forging with mould

2. Diameter: 0-1450mm, 6",8",10",12",14",16",20",24",28",30",34",36",40",42",etc

3.100% inspection before delivery

Usage of Hot Steel Forged Rail Wheels 12 inches railway wheels 4140 material 490 hb hardness precision hole of 0.01mm

Train, railcars, light rail, street car, metro, freight car, railway wagon for mining, rail trucks, ballast rail cars, Hy-rail hirail cars, etc

The Production Railway Wheels Process Railway wheel dimensions for Catenary and Track maintenance vehicles

1. Wheels Steel Melting 2. Round Billet Sawing Cutting 3. Heating 4. Phosphorus 5. Stamping Forming 6. Rolling 7. Bending Punch 8. Hot Stamping 9. Laser Measurement 10. Drop Stack 11. Roughing 12.Hardening 13.Tempering 14. Sampling 15. Pre-processing 16. Finishing 16. The Cold Print 17. Static Equilibrium 18. The Cold Print 19. Hardness Testing 20. Ultrasonic Testing 21. Magnetic Particle Testing 22. Shot Peening 23. Painting Packaging

Hot Steel Forged Rail Wheels 12 Inches 4140 Material 490 Hb Hardness

Main Production Equipment List

Main Testing and Inspection Device