Steel Solutions since 1982

Forged Products / Alloy Steel Grades

4140

Stronger version of 4130. High fatigue strength, impact strength.

Grade Details

4140

Description

Stronger version of 4130. High fatigue strength, impact strength.

Applications

Used in crankshafts, tool holders, gears, high-stress parts

Category

Alloy Steel Grades

Key Features

  • High Strength & Durability: Forged structure ensures superior mechanical properties compared to rolled or cast equivalents.
  • Custom Dimensions: Available in various sizes and shapes (Rounds, Blocks, Rings) tailored to your requirements.
  • Excellent Machinability: Optimized microstructure for efficient machining and finishing.
  • Heat Treatment: Supplied in Annealed, Normalized, or Quenched & Tempered conditions as per specification.

Technical Specifications

Property Specification
Standard ASTM / AISI / DIN / EN
Process Open Die Forging / Closed Die Forging
Surface Finish Black, Proof Machined, or Bright Turned
Ultrasonic Test 100% UT OK as per ASTM A388
Certification EN 10204 3.1 / 3.2

Quality Assurance

All our forged products undergo rigorous quality checks to ensure they meet international standards. We provide:

  • Chemical Analysis
  • Mechanical Testing (Tensile, Yield, Elongation)
  • Hardness Testing
  • Non-Destructive Testing (UT, MPI)
  • Dimensional Inspection

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