1.2714 Tool Steel Flat Bar (Premium Hammer Die Steel)

Product Description

FUSHUN METAL's 1.2714 Tool Steel Flat Bar is a premium nickel-chromium-molybdenum hot work die steel specifically engineered for large section tooling with an exceptional combination of outstanding toughness, excellent hardenability, good thermal shock resistance, and resistance to plastic deformation. With a carefully engineered chemical composition featuring optimized proportions of nickel, chromium, and molybdenum, our 1.2714 flat bar delivers superior performance in large die blocks subject to high mechanical stress and moderate thermal fatigue. Available in precision-milled finishes and tight dimensional tolerances, including extra-large sections up to 800mm thickness, this specialized flat steel bar is ideal for demanding applications in hammer forging dies, large die blocks, plastic molds requiring high toughness, press tooling, and other applications where maximum toughness and through-hardenability in large sections are critical. Unlike standard hot work steels, FUSHUN METAL's 1.2714 flat bars provide significantly enhanced hardenability and toughness with decent hot hardness up to 550°C (1020°F), ensuring reliable performance even in very large section sizes. Each bar undergoes comprehensive quality control to ensure consistent properties, precise dimensions, and superior surface quality for maximum performance in critical large-section tooling applications.

Flat Bar Specifications

FUSHUN METAL offers 1.2714 Tool Steel Flat Bar in a comprehensive range of specifications to meet diverse application requirements:

Available Dimensions

* Custom dimensions available upon request

Dimensional Tolerances

Surface Finishes

• Hot Rolled: Standard industrial finish
• Hot Rolled and Annealed: Stress relieved for better machinability
• Hot Rolled, Annealed, and Pickled: Clean scale-free surface
• Rough Machined: Surfaces rough machined to remove decarburization
• Fine Milled: High-quality surface finish with tight tolerances
• Precision Ground: Four sides ground with precision tolerances (up to 400mm thickness)
• Custom Finishes: Available upon request for specific applications

Supply Conditions

• Annealed: Soft condition for optimal machinability (180-230 HB)
• Pre-hardened: Hardened and tempered to 33-39 HRC for applications requiring moderate hardness
• Fully Heat Treated: Hardened and tempered to 40-48 HRC for immediate use
• Custom Heat Treatment: Available to meet specific hardness and toughness requirements
• Pre-Machined Blocks: Rough machined to customer requirements for large sections

Packaging Options

• Individual Plastic Wrapping: For protection against environmental contaminants
• Wooden Crates: For secure shipping of multiple bars
• Steel Strapped Bundles: For economical shipping of standard orders
• VCI Paper Wrapping: For enhanced corrosion protection
• Oil Coating: Available for additional corrosion protection
• Custom Packaging: Available to meet specific handling and storage requirements
• Heavy-Duty Packaging: Specialized options for large sections and export shipments
• Reinforced Pallets: For extra-large sections requiring special handling

Applications

FUSHUN METAL's 1.2714 Tool Steel Flat Bar is specifically engineered for applications requiring an optimal combination of toughness, hardenability in large sections, and resistance to mechanical stress:

Hammer Forging Applications

• Hammer forging dies for heavy equipment parts
• Counter dies for hammer forging
• Large hot forming dies
• Hammer insert holders
• Die blocks for hot working
• Foundation dies for hammer forging
• Swaging dies for large sections
• Adapter blocks for hammer forging operations

Press Forging Applications

• Large press forging dies
• Press die holders and bolsters
• Die blocks for mechanical presses
• Forging press tool holders
• Large cross-section tools for press operations
• Press die adapter blocks
• Supporting blocks for press operations
• Press rings and sleeves

Plastic Mold Applications

• Large injection mold bases
• Blow mold bases
• Structural foam mold frames
• Holder blocks for plastic molds
• Large cavity blocks requiring high toughness
• Support plates for complex molds
• Mold bases for high clamping force applications
• Holder frames for multi-cavity molds

Die Casting Applications

• Die holder blocks
• Support blocks for die casting inserts
• Bolster plates for die casting
• Large adapter blocks
• Die casting machine tooling
• Back-up plates for high pressure die casting
• Clamping plates for die casting machines
• Supporting frames for multi-part dies

Specialty Applications

• Mandrels for hot working operations
• Large punches and headers
• Hot trim and shear tooling
• Master hubs and form tooling
• Large section machinery components requiring toughness
• Support tooling for hot work operations
• Tooling for powder metallurgy compaction
• Die sets for heavy-duty applications

Chemical Composition

FUSHUN METAL's 1.2714 Tool Steel Flat Bar features the following nominal composition per DIN 17350/EN ISO 4957 standards:

Key Element Functions

• Carbon (0.50-0.60%): Provides good hardness and strength while maintaining adequate toughness. The moderate carbon content ensures a good balance between hardness and impact resistance.
• Nickel (1.50-1.80%): A key differentiating element in 1.2714 that significantly enhances hardenability in large sections and improves toughness. Nickel also contributes to reduced distortion during heat treatment.
• Chromium (1.00-1.20%): Improves hardenability and contributes to wear resistance. Forms stable carbides that enhance strength at elevated temperatures.
• Molybdenum (0.45-0.55%): Enhances hardenability and prevents temper brittleness. Improves high-temperature strength and toughness.
• Manganese (0.65-0.95%): Enhances hardenability and contributes to strength.
• Vanadium (0.07-0.12%): Forms fine carbides that contribute to grain refinement and improved toughness. Also provides some secondary hardening during tempering.
• Silicon (0.10-0.40%): Acts as a deoxidizer during melting and contributes to overall strength.

Physical and Mechanical Properties

Our 1.2714 Tool Steel Flat Bar offers an impressive combination of physical and mechanical properties that make it ideal for demanding large section applications:

Physical Properties

Mechanical Properties (Annealed Condition)

Mechanical Properties (Hardened and Tempered to 42-44 HRC)

Mechanical Properties (Hardened and Tempered to 46-48 HRC)

Hot Hardness

1.2714 maintains adequate hardness at elevated temperatures, though not as high as chromium-based hot work steels:

Special Features of FUSHUN METAL's 1.2714 Tool Steel Flat Bar

Our 1.2714 Tool Steel Flat Bar offers several distinctive advantages that set it apart from conventional tool steel products:

Exceptional Hardenability for Large Sections

1.2714 provides superior hardenability in large cross-sections:

• Deep Through-Hardening: The nickel and chromium content ensures exceptional through-hardening capability in sections up to 800mm, far exceeding the capabilities of standard hot work steels.
• Uniform Properties: Achieves consistent hardness and mechanical properties throughout the cross-section, even in very large die blocks.
• Flexible Heat Treatment: Can be successfully heat treated using various cooling methods from oil quenching to air cooling, allowing for flexibility in processing large sections.
• Reduced Risk of Cracking: The balanced alloy design provides good hardenability while minimizing the risk of quench cracking in large sections.
• Minimal Center Softness: Significantly reduced difference between surface and core hardness compared to conventional tool steels.
• Predictable Heat Treatment Response: Consistent and reliable response to heat treatment, reducing the risk of unexpected results in critical large components.
• Adaptable Processing: Suitable for both conventional and vacuum heat treatment processes.

Outstanding Toughness

1.2714 delivers exceptional toughness for demanding applications:

• Superior Impact Resistance: Excellent resistance to impact loads and mechanical shock, critical for hammer forging applications.
• Crack Resistance: High resistance to crack formation and propagation under severe mechanical stress.
• Fatigue Strength: Good resistance to mechanical fatigue under cyclic loading conditions.
• Moderate Thermal Shock Resistance: Adequate resistance to thermal shock for applications with moderate temperature variations.
• Safety Margin: The exceptional toughness provides a safety margin against unpredicted overload situations.
• Good Ductility: Maintains good ductility even at high hardness levels, preventing brittle behavior.
• Edge Toughness: Excellent edge and corner strength, reducing the risk of chipping and breakage.

Balanced Material Properties

1.2714 offers an excellent combination of properties for large tooling applications:

• Good Hot Hardness: Maintains adequate hardness at temperatures up to 550°C (1020°F), sufficient for many hot work applications.
• Moderate Wear Resistance: Provides decent wear resistance for applications where impact and toughness are more critical than extreme wear resistance.
• Good Machinability: Better machinability than many high-alloy tool steels, particularly important for large section machining.
• Dimensional Stability: Good dimensional stability during heat treatment when properly processed.
• Polishability: Can be polished to a good finish, important for certain applications.
• Excellent Weldability: Superior weldability compared to most tool steels, facilitating repairs and modifications of large dies.
• Good Thermal Conductivity: Better thermal conductivity than higher alloyed tool steels, promoting more uniform heating and cooling.

Manufacturing Excellence

FUSHUN METAL employs specialized processes to ensure our 1.2714 flat bars deliver reliable performance in critical applications:

• Premium Melting Processes: Vacuum degassed or electroslag remelted options available for enhanced cleanliness and performance in critical applications.
• Precise Chemical Control: Tight control of alloying elements, particularly nickel and chromium, to ensure consistent heat treatment response and mechanical properties.
• Controlled Forging: Optimized forging practices with special emphasis on homogeneous deformation of large sections.
• Optimized Annealing: Precise annealing cycles to achieve uniform hardness and excellent machinability.
• Stress Relieving: Proper stress relief treatments to minimize distortion during machining and subsequent heat treatment.
• Internal Soundness Testing: Comprehensive ultrasonic testing of large sections to ensure internal quality.
• Homogeneity Verification: Testing at multiple locations on large blocks to verify consistent properties.
• Large-Section Expertise: Specialized knowledge in producing and processing extremely large tool steel sections.

Heat Treatment Recommendations

For customers performing their own heat treatment of 1.2714 tool steel flat bar, FUSHUN METAL recommends the following parameters:

Stress Relieving

• Heat slowly to 600-650°C (1110-1200°F)
• Hold for minimum 2 hours per 25mm of thickness (minimum 4 hours for sections over 200mm)
• Cool slowly in furnace to below 500°C (930°F), then air cool
• Recommended before extensive machining to minimize distortion
• Particularly critical for large section sizes to ensure dimensional stability

Annealing

• Heat slowly to 750-780°C (1380-1435°F)
• Hold for 1-2 hours per 25mm of thickness (minimum 4 hours for sections over 200mm)
• Cool slowly in furnace at a rate not exceeding 20°C (36°F) per hour to 600°C (1110°F)
• Continue cooling in furnace or air
• Resulting hardness: 180-230 HB

Hardening

• Preheating: Step 1: 500-550°C (930-1020°F)
• Preheating: Step 2: 800-850°C (1470-1560°F) (particularly important for large sections)
• Austenitizing: 840-870°C (1545-1600°F)
  • Lower temperatures for better toughness, higher temperatures for maximum hardness
  • For sections over 400mm, stay in the lower range to minimize internal stresses
• Holding time: 30-60 minutes after thorough heating (minimum 60 minutes for sections over 200mm)
• Quenching options:
  • Oil quenching: Preferred for sections up to 150mm
  • Polymer quenching: Good option for medium sections 100-300mm
  • Air cooling: Possible for sections under 80mm
  • Martempering: Recommended for complex shapes and large sections
• Special consideration for large sections (>400mm): Consider step quenching or isothermal transformation techniques to minimize stress
• Achievable hardness after quenching: 50-54 HRC (surface), with core hardness dependent on section size

Tempering

• Temper immediately after cooling to hand-warm temperature (50-70°C/120-160°F)
• Tempering temperature selection based on desired final hardness:
  • 500-540°C (930-1000°F): 44-48 HRC (balanced hardness and toughness)
  • 540-580°C (1000-1075°F): 40-44 HRC (enhanced toughness for demanding applications)
  • 580-620°C (1075-1150°F): 36-40 HRC (maximum toughness for heavy-duty applications)
  • 460-500°C (860-930°F): 46-50 HRC (maximum hardness, but reduced toughness)
• Hold at temperature for minimum 2 hours per 25mm thickness (minimum 4 hours for sections over 200mm)
• Double or triple tempering required (minimum two tempers for all applications)
• Triple tempering strongly recommended for sections over 200mm
• Cool to room temperature between tempering cycles
• For large sections, consider slow cooling after tempering to minimize residual stress

Nitriding (Optional)

• For enhanced surface hardness and wear resistance, 1.2714 can be nitrided
• Perform after final heat treatment and tempering at minimum 540°C (1000°F)
• Gas nitriding: 500-520°C (930-970°F) for 20-40 hours
• Plasma nitriding: 480-520°C (895-970°F) for 10-20 hours
• Achievable surface hardness: 900-1000 HV (67-70 HRC)
• Typical case depth: 0.1-0.3 mm

Quality Assurance and Testing

Every batch of FUSHUN METAL's 1.2714 Tool Steel Flat Bar undergoes rigorous testing to ensure it meets our exacting quality standards:

• Chemical Composition Analysis: Spectrographic testing to verify precise element content critical for performance, with special attention to nickel, chromium, and molybdenum levels.
• Mechanical Property Testing: Hardness testing to confirm proper annealing or heat treatment.
• Impact Testing: Charpy V-notch testing to verify toughness properties.
• Microstructural Examination: Metallographic analysis to verify proper structure, grain size, and carbide distribution.
• Ultrasonic Testing: 100% ultrasonic inspection on large sections to detect internal defects and ensure soundness.
• Magnetic Particle Inspection: Available to detect surface or near-surface defects.
• Dimensional Verification: Precision measurement to ensure tight dimensional tolerances.
• Flatness Testing: Verification of flatness to ensure minimal warpage.
• Heat Treatment Response Verification: Sample testing to confirm proper response to hardening and tempering.
• Hardenability Testing: Jominy end-quench testing available upon request.
• Cross-Section Hardness Mapping: For large sections, hardness testing at various depths to verify through-hardenability.
• Macroetch Testing: To verify internal structure in large sections.

Certifications Provided

• Material Test Certificates according to EN 10204 3.1
• Chemical composition analysis
• Mechanical property test results
• Impact test results
• Dimensional inspection report
• Heat treatment certification when applicable
• Special property verifications available upon request
• Certificate of conformity to ordered specifications
• Ultrasonic testing reports for large sections
• Hardenability test results when specified

International Standards Compliance

Our 1.2714 Tool Steel Flat Bar complies with the following international standards:

Machining Recommendations

To achieve optimal results when machining 1.2714 tool steel flat bars, FUSHUN METAL recommends the following parameters:

Annealed Condition (180-230 HB)

Hardened and Tempered Condition (42-46 HRC)

* These values are guidelines only; adjustments may be necessary based on specific equipment and conditions

Machining Tips for Large Sections

• Use rigid setups with proper support for large workpieces to minimize vibration and deflection.
• For large sections, consider roughing out the profile in annealed condition before final heat treatment.
• Apply adequate cooling, especially when machining in hardened condition.
• Leave sufficient machining allowance (3-5mm per side) for final finishing after heat treatment.
• For very large components, stress relieve after heavy roughing operations to minimize distortion.
• Use sharp tools and replace at regular intervals to maintain dimensional accuracy.
• After EDM processing, remove the affected layer by grinding or polishing to prevent fatigue cracking.
• For deep cavities and holes in large sections, consider progressive machining with intermediate stress relieving.
• When machining large hardened sections, use reduced cutting speeds and depths compared to smaller sections.
• Consider using built-up edge cutting tools for better stability in heavy machining operations.

Welding Recommendations

1.2714 has good weldability compared to many tool steels, making it suitable for repairs and modifications:

• Preheat: 250-350°C (480-660°F) depending on section thickness
• Filler Material: Matching composition or AWS A5.14 ERNiCrMo-3
• Process: TIG/GTAW preferred for highest quality; MMA/SMAW also suitable with low hydrogen electrodes
• Interpass Temperature: Maintain 250-350°C (480-660°F)
• Post-weld Heat Treatment: Slow cool to 100°C (212°F), then temper immediately at a temperature 25-50°C (45-90°F) below the previous tempering temperature
• Hydrogen Control: Use low hydrogen processes and consumables; bake electrodes according to manufacturer recommendations
• Joint Design: Use simple joint designs with adequate access; avoid sharp corners
• Special Consideration for Large Sections: Extend preheating time to ensure uniform temperature throughout the section
• Advantage: The nickel content improves weldability compared to most tool steels, facilitating repairs of large dies

Comparative Advantages over Other Tool Steel Grades

Understanding how 1.2714 tool steel flat bar compares to other grades helps in selecting the optimal material for your application:

Application-Specific Recommendations

FUSHUN METAL provides tailored recommendations for specific applications of 1.2714 tool steel flat bar:

Hammer Forging Applications

• Recommended hardness: 40-44 HRC for heavy-duty applications, 44-46 HRC for moderate duty
• Ideal for large hammer dies and adapter blocks
• Ensure adequate corner and fillet radii to minimize stress concentration (minimum 5mm for large dies)
• Preheat dies to 200-250°C (390-480°F) before use to reduce thermal shock
• For very large dies, consider using inserts of more wear-resistant material in high-wear areas
• Implement proper cooling between forging operations
• Design with adequate support and keying to prevent movement during impact
• Consider using flame hardening or induction hardening for working surfaces to enhance wear resistance
• Regular inspection for crack initiation recommended to prevent catastrophic failure

Press Forging Applications

• Recommended hardness: 42-46 HRC for standard applications, 38-42 HRC for extremely large sections
• Ideal for large die blocks and bolsters
• Design with proper cooling channels for temperature control during operation
• For heavy-duty applications, consider using more wear-resistant inserts in high-wear areas
• Implement proper lubrication systems to reduce friction and wear
• For large press dies, consider the use of pre-machined and heat-treated blocks to reduce processing time
• Design with proper ejection systems to prevent sticking
• Regular maintenance including refinishing of working surfaces recommended

Plastic Mold Applications

• Recommended hardness: 30-38 HRC for mold bases, 40-44 HRC for structural components
• Excellent choice for large mold bases requiring good toughness
• Design with proper cooling channels for temperature control during molding
• For abrasive plastics, consider using more wear-resistant inserts in high-wear areas
• Implement proper venting to prevent gas trapping
• For large molds, consider using pre-machined and heat-treated blocks
• Design with proper support to prevent deflection under clamping forces
• Consider surface treatments like nitriding for enhanced surface hardness and wear resistance

Customization Capabilities

FUSHUN METAL offers extensive customization options to meet your specific application requirements:

• Custom Dimensions: Special sizes manufactured to exact specifications for your application, including extra-large sections up to 800mm thickness.
• Modified Chemical Composition: Slight adjustments to standard composition available to optimize specific properties.
• Special Melting Routes: Vacuum degassed or electroslag remelted material available for critical applications requiring enhanced cleanliness.
• Pre-Machining Services: Rough machining including cutting to length, face milling, drilling, and step machining available.
• Heat Treatment Services: Custom heat treatment to achieve specific hardness and toughness combinations.
• Surface Treatments: Nitriding, flame hardening, and other treatments available upon request.
• Specialized Testing: Application-specific testing protocols available upon request.
• Custom Packaging: Specialized packaging for long-term storage or export shipments.
• Edge Preparation: Chamfering and deburring of edges for safe handling.
• Technical Consultation: Expert metallurgical support for your specific application challenges.
• Material Certification: Enhanced certification packages for critical applications.
• Rough Machined Blocks: Pre-machined die blocks available to reduce your processing time.
• Composite Blocks: Welded construction of different materials for optimized performance.

Why Choose FUSHUN METAL for 1.2714 Tool Steel Flat Bar

When you select FUSHUN METAL as your supplier for 1.2714 Tool Steel Flat Bar, you partner with a leading manufacturer committed to excellence:

• Large Section Expertise: Specialized experience in manufacturing large and extra-large tool steel sections with optimal properties.
• Advanced Production Facilities: State-of-the-art melting, forging, and processing equipment specifically optimized for large tool steel production.
• Stringent Quality Control: Comprehensive testing and inspection protocols ensure consistent performance in demanding applications.
• Metallurgical Knowledge: In-depth understanding of heat treatment and microstructural control of large section tool steels.
• Supply Chain Reliability: Robust inventory management and production planning to ensure consistent availability of critical materials.
• Technical Support: Expert assistance in material selection, heat treatment guidance, and application support.
• Global Capabilities: Worldwide shipping network with experience in international documentation and compliance.
• Material Traceability: Complete documentation and batch traceability for quality assurance.
• Continuous Improvement: Ongoing research and development in tool steel processing and performance.
• Industry Compliance: Materials and processes that meet or exceed international standards for critical applications.
• Competitive Pricing: Excellent value combined with superior quality and service.
• Environmental Responsibility: Commitment to sustainable manufacturing practices and environmental management.

Request Information

Contact FUSHUN METAL today to discuss your 1.2714 Tool Steel Flat Bar requirements. Our technical team is ready to assist you with:

• Detailed product specifications
• Technical consultations for your specific application
• Heat treatment recommendations for optimal properties
• Custom dimension and processing requirements
• Pricing inquiries and delivery schedules
• Sample requests for evaluation

FUSHUN METAL – Your trusted partner for premium large section tool steel solutions that deliver consistent quality, superior toughness, and exceptional hardenability for the most demanding die and tooling applications.