Custom 4140 Steel Parts
High-Strength Chromium-Molybdenum Alloy Solutions
Expert manufacturing of custom 4140 steel (42CrMo4) parts with exceptional strength, toughness, and wear resistance for demanding applications in automotive, aerospace, and industrial sectors.
- •High strength and toughness
- •Excellent wear resistance
- •Superior machinability
- •Heat treatable alloy
4140 Steel (42CrMo4) Overview
4140 steel is a versatile chromium-molybdenum alloy steel that offers an excellent combination of strength, toughness, and wear resistance. Also known as 42CrMo4 in European standards, this alloy is widely used in applications requiring high mechanical properties and durability.
- •Medium carbon alloy steel
- •Chromium-molybdenum composition
- •Excellent heat treatability
- •Superior mechanical properties
Material Properties
Superior Mechanical Characteristics
Chemical Composition
- •0.38-0.43%
- •0.15-0.35%
- •0.75-1.00%
- •≤0.035%
- •≤0.040%
- •0.80-1.10%
- •0.15-0.25%
Mechanical Properties
- •655-850 MPa
- •415-655 MPa
- •15-25%
- •197-235 HB
- •27-54 J
4140 Steel (42CrMo4) Manufacturing Processes
Our state-of-the-art manufacturing capabilities ensure precise 4140 steel parts with consistent quality and performance.
CNC Machining
Precision computer-controlled machining for complex geometries and tight tolerances
Capabilities:
- •Multi-axis machining
- •High-speed cutting
- •Advanced tooling
- •Quality control
Heat Treatment
Customized heat treatment processes to achieve desired mechanical properties
Capabilities:
- •Quenching and tempering
- •Annealing
- •Normalizing
- •Stress relieving
Surface Finishing
Advanced surface treatment for enhanced performance and appearance
Capabilities:
- •Grinding
- •Polishing
- •Coating
- •Nitriding
Applications
4140 steel parts are used across various industries for their exceptional strength and durability.
Automotive
- • Gears and shafts
- • Crankshafts
- • Connecting rods
- • Suspension components
Aerospace
- • Landing gear components
- • Engine parts
- • Structural elements
- • Fasteners
Industrial
- • Machine tool components
- • Hydraulic cylinders
- • Pump parts
- • Valve bodies
Oil & Gas
- • Drilling equipment
- • Pipeline components
- • Valve parts
- • Tooling
Why Choose 4140 Steel
Superior Performance Benefits
High Strength
Excellent tensile and yield strength for demanding applications
Toughness
Superior impact resistance and fracture toughness
Wear Resistance
Enhanced durability and extended service life
Machinability
Good machinability for efficient manufacturing processes
Heat Treatability
Versatile heat treatment options for property optimization
Cost Effective
Excellent value for high-performance applications
Quality Assurance
Comprehensive quality control ensures every 4140 steel part meets the highest standards.
Frequently Asked Questions
What is 4140 steel?
How to heat treat 4140?
What is 4140 steel used for?
Does 42CrMo4 have a UNS number?
What is the European equivalent of 4140 steel?
What is the Chinese equivalent of 4140 steel?
What is 4140 equivalent material?
Ready to Start Your 4140 Steel Project?
Our team of experienced engineers and machinists is ready to help you bring your 4140 steel project to life with precision manufacturing and exceptional quality.