| Customization: | Available |
|---|---|
| Type: | Round Bar |
| Standard: | AISI, DIN, JIS, GB |
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L6 Tool Steel | 1.2714 | 55NiCrMoV7 | SKT4 - Durable Tool Steel
AISI L6 Tool Steel, classified under the L-type in ASTM A681 for special purpose tool steels, is an oil-hardening alloy tool steel known for its excellent toughness. It is ideal for applications requiring a combination of hardness and toughness, such as tools, dies, and machine parts.
Due to its lower carbon content and relatively high nickel content, L6 tool steel offers better shock resistance compared to more highly alloyed tool steels, making it suitable for applications where increased toughness is preferred over wear resistance.
Otai Steel provides AISI L6 tool steel in various shapes and sizes, tailored to meet specific customer requirements.
| ZEICIN Grade | AISI | DIN | JIS | British |
| L6/ SKT4 | ASTM A681/ L6 / T61206 | 1.2714/ 55NiCrMoV7 | G4404/ SKT4 | BS 4659 / BH224/5 |
| C | Mn | P | S | Si | Cr | Mo | Ni |
| 0.65-0.75 | 0.25-0.80 | 0.03 | 0.03 | 0.10-0.50 | 0.60-1.20 | ≤0.50 | 1.25-2.00 |
L6 Tool Steel | 1.2714 | 55NiCrMoV7 | SKT4 - Heat Treatment
Hardening
Preheating: Heat L6 steel to 621-677°C (1150-1250°F), soak for 30 minutes per inch of thickness, plus 15 minutes for each additional inch.
Quenching: Quench in oil to 66-51°C (150-125°F).
Tempering
Temper immediately after quenching. Hold at 204°C (400°F) for 1 hour per inch of thickness (minimum 4 hours), then air cool.
For increased toughness, temper at higher temperatures between 232°C to 426°C (450 to 800°F).
Annealing
Heat to 760°C (1400°F), hold for 1 hour per inch of thickness, then cool slowly in the furnace to 538°C (1000°F), and continue cooling to room temperature.
For better machinability, hold at 760°C (1400°F) for 1 hour per inch, then cool slowly in the furnace, and air cool after 8 hours.
L6 steel should not be normalized due to its air-hardening properties.
| Process | Temperature | Remarks |
|---|---|---|
| Preheating | 621-677°C (1150-1250°F) | Soak for 30 minutes per inch of thickness |
| Quenching | 66-51°C (150-125°F) | Quench in oil |
| Tempering | 204°C (400°F) | 1 hour per inch, air cool |
| Increased Toughness | 232°C-426°C (450-800°F) | Temper for higher toughness |
| Annealing | 760°C (1400°F) | 1 hour per inch, then cool slowly |
| Machinability Annealing | 760°C (1400°F) | Hold for 1 hour, cool slowly, air cool after 8 hours |
| Normalization | - | Do not normalize |
1. Exceptional Value for Money
High Performance at Competitive Pricing
Our L6 Tool Steel (1.2714/55NiCrMoV7/SKT4) offers excellent toughness, wear resistance, and dimensional stability at an affordable price. It is perfect for producing cold work tools, including cutting tools, dies, and punches, delivering excellent performance without the high cost of premium steel.
2. Advanced Manufacturing Technology
Precision Manufacturing Process
L6 Tool Steel is produced using advanced manufacturing methods to ensure high-quality steel, uniform microstructure, and enhanced mechanical properties. It is ideal for cold work applications, such as cutting, punching, and die-making.
Controlled Heat Treatment
We optimize hardness (58-64 HRC after tempering) and wear resistance through precise heat treatment, ensuring reliable performance even in high-stress and high-temperature environments.
3. Reliable Product Quality
Strict Process Quality Control
We implement strict quality control measures throughout the entire production process to ensure consistent mechanical properties, uniform microstructure, and precise dimensional accuracy in each batch of L6 Tool Steel.
Compliance with Global Standards
L6 Tool Steel meets international standards such as ASTM, DIN, and JIS, making it a reliable choice for industries such as automotive, aerospace, and tooling.
4. Technical Expertise and Customization
Continuous Process Optimization
We continuously invest in improving our manufacturing processes to meet the evolving demands of various industries, while maintaining high performance and reliability.
Customized Solutions Available
We offer L6 Tool Steel in various forms, including round bars, flat bars, and sheets. Additionally, we provide customized heat treatments and surface finishes to meet the specific needs of each customer.
Applications of AISI L6 Tool Steel | 1.2714 | 55NiCrMoV7 | SKT4 - Durable Tool Steel
Our AISI L6 Tool Steel (1.2714/55NiCrMoV7/SKT4) is ideal for cold work applications requiring higher toughness, with some sacrifice in abrasion resistance. Typical uses include:
Spindles: For precision components requiring toughness.
Forming Rolls: Used in forming operations with high durability.
Punches: For punching tools in medium to heavy-duty applications.
Blanking and Forming Dies: Ideal for producing blanked parts and forming complex shapes.
Trimmer Dies: Trimmer Dies are used for trimming applications in various industries.
Clutch Parts: High-strength components for clutch mechanisms.
Pawls: Used in mechanical systems for engaging and disengaging.
Bearings: For durable and wear-resistant bearings.
Chucks Parts: For manufacturing chuck components.
Rollers: Used in rolling applications requiring toughness.
Knuckle Pins: For heavy-duty components subject to high stresses.
Clutch Pins: For high-performance clutch systems.
Shear Blades: For cutting, shearing, and heavy-duty shear applications.
AISI L6 Tool Steel is a versatile and tough choice for applications where toughness is prioritized over wear resistance, making it ideal for a variety of tooling and mechanical components.
Otai Steel offers excellent quality and competitive pricing for AISI L6 tool steel tailored to your specific requirements. Customized chemical compositions and dimensions are available upon request.
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