DIN 1.2714 Hot Work Steels for Die forging

Goelsteel > DIN 1.2714 Hot Work Steels for Die forging

Standards & Designations

DIN 1.2714 is a premium-grade hot work steel recognized for its superior wear resistance, exceptional toughness, and high hardness. It is equivalent to several standards, including:

55NiCrMoV

DIN 2714

DB6

AISI L6

AFNOR

Chemical Composition

The remarkable properties of DIN 1.2714 Hot Work Steels for Die Forging stem from its carefully balanced chemical composition:

Carbon (C)
Silicon (Si)
Manganese (Mn)
Phosphorus (P)
Sulfur (S)
Chromium (Cr)
Nickel (Ni)
Molybdenum (Mo)
Vanadium (V)
0.50-0.60
0.10-0.40
0.65-0.95
≤ 0.03
≤ 0.03
1.00-1.20
1.50-1.80
0.45-0.55
0.07-0.12

These alloying elements make YXM1 suitable for demanding applications due to its high toughness, red hardness, and wear resistance.

Grade Brief

DIN 1.2714 is highly recommended for close die forgings due to its excellent combination of high wear resistance, extra toughness, and high hardness achieved through the use of premium Cr-Ni-Mo-V alloys. This grade serves as an upgrade to DIN 2713, offering enhanced performance for dies, with a standard hardness range of 360 to 430 BHN. The equivalent grade, DB6 / L6 / SKT4, is typically utilized in a pre-hardened condition. At Goel Steel Company, we supply die blocks that undergo additional forging reduction and upsetting processes, along with double tempering to achieve superior ultrasonic quality.

Mode of Supply

Goel Steel is the largest stockist and supplier of DIN 1.2714 Hot Work Steels for Die Forging available in flat and round bars. We offer steel in various sizes to meet your specific requirements. Consult our team for any inquiries regarding DIN 1.2714 steel.

Steel Properties

DIN 1.2714 is a special hot work pre-hardened steel that boasts excellent toughness and high wear resistance. This die steel is commonly supplied in hard, quenched, and tempered conditions, as well as in an annealed state for special cases. Its working hardness typically ranges from 360 to 430 BHN, marking it as an upgraded option compared to DB6 / DIN 2713 / AISI L6.

Mechanical Properties

Tensile Strength
Yield Strength
Elongation
Impact Toughness
Hardness
Compressive Strength
Modulus of Elasticity
1000-1400 MPa
1045 MPa
15%-20%
20 J/cm² - 25 J/cm²
50-55 HRC
2500 MPa
205 GPa

Physical Properties

The specific values of the physical properties can vary based on composition, heat treatment, and manufacturing processes. For precise details regarding the physical characteristics of DIN 1.2714 Hot Work Steels for Die Forging, it is advisable to consult the manufacturer’s datasheet or specifications.

Thermal Expansion Coefficient

Temperature (°C) 20-600
20-100
20-200
20-300
20-400
20-500
Coefficient (10⁻⁶ m/(m*K))
12.1
13.1
13.2
13.5
14.1

Thermal Conductivity

Temperature (°C)
20
350
700
Thermal Conductivity (W/(m*K))
35.0
39.0
36.0

Hardness of DIN 1.2714

The hardness of DIN 1.2714 Hot Work Steels for Die Forging varies based on tempering temperature conditions:

Annealed Condition: Max 255 BHN
Hardened and Tempered Condition: 38 to 42 HRC
Hardness Variation from Surface to Core: 20 to 25 BHN

Machinability

The machinability of DIN 1.2714 is rated as very good, achieving approximately 90% of the machinability of W-group water-hardening low alloy steels, which serves as the baseline at 100%.

Heat Treatment & Processes

The heat treatment process for DIN 1.2714 Hot Work Steels for Die Forging varies based on the desired hardness, toughness, and mechanical properties required for specific applications.

Hardening

Preheat to 650°C, rapidly raise to the hardening range of 900–950°C, and quench in oil.

Tempering

Tempering at 400°C: 1770 MPa Tempering at 500°C: 1570 MPa Tempering at 600°C: 1320 MPa Tempering at 650°C: 1180 MPa

Forging

Gradually warm to 700°C, then quickly raise to 1050°C while maintaining forging above 800°C. Cool slowly after forging, either in a furnace or with vermiculite.

Normalizing

Not recommended due to air-hardening properties.

Annealing

Soak thoroughly at 740-760°C before furnace cooling at a maximum rate of 10°C per hour to 600°C, then cool in air.

Cold Working

It is advisable to perform cold working operations on the steel in its annealed condition before heat treatment.

Nitriding

Can be nitride for a hard surface case; it is highly resistant to wear and erosion.

Welding

Requires stress tempering for pre-hardened conditions.

Quenching

Critical in achieving appropriate hardness and mechanical properties, utilizing oil and air mediums above critical temperatures.

Applications

The heat treatment process for DIN 1.2714 Hot Work Steels for Die Forging varies based on the desired hardness, toughness, and mechanical properties required for specific applications.

  • Dies for drop forging hammers and mechanical presses
  • Die molds
  • Shoe blocks and die holders
  • Cassettes and piston rods
  • Cranks and boosters
  • Shearing blades and tools
  • Plastic molds and bearings
  • Chucks, rollers, knuckle pins, and clutch pins
  • Forming rolls, punches, blanking and forming dies, trimmer dies, and shafts

For reliable performance and exceptional quality, DIN 1.2714 Hot Work Steels for Die Forging is an excellent choice for industries requiring durable and high-performance tooling solutions. Contact Goel Steels for your inquiries and to learn more about our offerings. Our expert team is here to assist you in selecting the right steel for your specific applications.

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