Unveiling the Marvels of 4340/36CrNiMo4/1.6511/SNCM439/EN24/817M40 Alloy Steel: A Comprehensive Exploration
Introduction
In the expansive realm of metallurgy, certain alloys shine as exemplars of innovation and engineering prowess. Among them stands 4340/36CrNiMo4/1.6511/SNCM439/EN24/817M40 Alloy Steel, celebrated for its remarkable strength, toughness, and adaptability. Join us as we embark on an exploration to unveil the intricacies and merits of this extraordinary alloy, examining its composition, properties, applications, suppliers, pricing, and expert insights.
Overview of 4340/36CrNiMo4/1.6511/SNCM439/EN24/817M40 Alloy Steel
4340/36CrNiMo4/1.6511/SNCM439/EN24/817M40 Alloy Steel stands out for its exceptional combination of strength, toughness, and versatility, making it highly sought after in various industries.
Chemical Composition
| Element | Percentage |
|---|---|
| Carbon (C) | 0.38-0.43% |
| Chromium (Cr) | 0.70-0.90% |
| Manganese (Mn) | 0.60-0.80% |
| Phosphorus (P) | 0.035% max |
| Silicon (Si) | 0.15-0.35% |
| Sulfur (S) | 0.040% max |
| Nickel (Ni) | 1.65-2.00% |
| Molybdenum (Mo) | 0.20-0.35% |
| Iron (Fe) | Balance |
Mechanical Properties
- Tensile Strength: 980-1200 MPa
- Yield Strength: 835 MPa
- Elongation: 12% (in 50mm)
Standards
- ASTM A29: Standard Specification for General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought
- EN 10083-3: Technical delivery conditions for alloy steels
- JIS G4103: Nickel Chromium Molybdenum Steels
Exploring the Features and Advantages
4340/36CrNiMo4/1.6511/SNCM439/EN24/817M40 Alloy Steel possesses a plethora of features and advantages that render it a preferred choice in various applications.
Features
- High tensile strength combined with excellent toughness
- Good fatigue resistance and impact strength
- Excellent hardenability and heat resistance
- Suitable for heat treatment to achieve desired mechanical properties
- Versatile and adaptable to diverse manufacturing processes
Advantages
- Widely used in applications requiring high strength and toughness, such as automotive, aerospace, and machinery components
- Offers good machinability in the annealed condition
- Provides excellent wear resistance and dimensional stability in demanding environments
- Cost-effective compared to some other high-alloy steels
Comparison Between 4340/36CrNiMo4/1.6511/SNCM439/EN24/817M40 Alloy Steel and Competing Alloys
Let’s compare the advantages and disadvantages of 4340/36CrNiMo4/1.6511/SNCM439/EN24/817M40 Alloy Steel with a competing alloy, Alloy X:
| Parameter | 4340/36CrNiMo4/1.6511/SNCM439/EN24/817M40 Alloy Steel | Alloy X |
|---|---|---|
| Strength | High | Very high |
| Toughness | Excellent | Moderate |
| Machinability | Good | Poor |
| Weldability | Good | Moderate |
| Cost | Moderate | Higher |
Applications and Uses
From automotive components to industrial machinery, 4340/36CrNiMo4/1.6511/SNCM439/EN24/817M40 Alloy Steel finds extensive application across diverse industries.
| Industry | Applications |
|---|---|
| Automotive | Axles, gears, crankshafts |
| Aerospace | Landing gear components, structural parts |
| Machinery | Shafts, gears, couplings |
| Oil & Gas | Drill collars, drilling equipment |
Navigating Suppliers and Pricing
Sourcing 4340/36CrNiMo4/1.6511/SNCM439/EN24/817M40 Alloy Steel requires careful consideration of reliable suppliers offering quality products at competitive prices.
| Supplier | Price Range (per unit) | Description/Notes |
|---|---|---|
| Special Metals Corp | $3.00 – $4.50 per pound | Specializes in alloy steel bars and forgings |
| Alloy Tech | $3.20 – $4.80 per pound | Offers a wide range of alloy steel products |
| Precision Alloys | $3.50 – $5.00 per pound | Provides customized alloy steel solutions |
FAQs about 4340/36CrNiMo4/1.6511/SNCM439/EN24/817M40 Alloy Steel
Q: Can 4340/36CrNiMo4/1.6511/SNCM439/EN24/817M40 Alloy Steel be welded?
A: Yes, this alloy steel can be welded using conventional welding methods, although preheating and post-weld stress relieving may be required for certain applications.
Q: What is the heat treatment process for 4340/36CrNiMo4/1.6511/SNCM439/EN24/817M40 Alloy Steel?
A: The heat treatment process typically involves quenching and tempering to achieve desired mechanical properties, such as hardness and toughness.
Q: What are the common applications of 4340/36CrNiMo4/1.6511/SNCM439/EN24/817M40 Alloy Steel?
A: Common applications include automotive components, machinery parts, and industrial equipment requiring high strength and toughness.
Q: Where can I buy 4340/36CrNiMo4/1.6511/SNCM439/EN24/817M40 Alloy Steel?
A: You can source this alloy steel from reputable suppliers such as Special Metals Corp, Alloy Tech, and Precision Alloys, among others.
Q: What specifications does 4340/36CrNiMo4/1.6511/SNCM439/EN24/817M40 Alloy Steel conform to?
A: This alloy steel conforms to standards such as ASTM A29, EN 10083-3, and JIS G4103, ensuring compliance with stringent quality requirements.
