Top 5 Tool Steel Grades for Die Makers-Complete Comparison
In the tool and die
manufacturing industry, the
successful production line often begins with one important decision that is
choosing the right tool steel grade. When the correct steel is selected,
dies last longer, machines run smoothly, and production targets are achieved
with consistent quality.
Every manufacturing process
has its own demands. A forging die must withstand intense heat and
pressure, while stamping dies and cutting tools require exceptional wear
resistance and hardness. Similarly, molds need the right balance of
toughness and durability to perform reliably over thousands of production
cycles.
1. DB6 Tool Steel – Advanced Steel for Longer Die Life
DB6 tool steel is gaining popularity among die manufacturers due to
its exceptional toughness and wear resistance.
Key Properties
- Superior toughness
- Excellent wear resistance
- High fatigue resistance
- Longer
die life
Common Applications
- Forging dies
- Heavy duty stamping dies
- High impact tooling
- Automotive die
manufacturing
Why DB6 is Becoming Popular
Compared to conventional tool steels, DB6 offers longer tool life and
better performance under heavy loads, which helps reduce downtime and tooling
costs.
H13 tool steel is one of the most popular hot work tool steels used
for applications involving high temperatures.
Key Properties
- Excellent heat resistance
- Good toughness
- High thermal fatigue
resistance
- Good strength at elevated
temperatures
Common Applications
- Forging dies
- Extrusion dies
- Die casting tools
- Hot stamping dies
Why H13 is Popular
H13 maintains its hardness even at high operating temperatures, making
it ideal for hot forging and die casting industries.
D2 tool steel is one of the most widely used cold work tool
steels in die manufacturing. It contains a high percentage of chromium,
which provides excellent wear resistance and hardness.
Key Properties
- High wear resistance
- Good dimensional
stability
- High compressive strength
- Moderate toughness
Common Applications
- Blanking dies
- Punches
- Shear blades
- Cold forming tools
- Stamping dies
Why Die Makers Prefer D2
D2 steel is ideal for applications where abrasion resistance is more
important than impact resistance. It helps increase die life in high-production
environments.
4. D3 Tool Steel – Maximum Hardness for Cutting Applications
D3 tool steel is another high carbon high chromium cold work steel
known for its extremely high hardness and wear resistance.
Key Properties
- Very high hardness
- Excellent wear resistance
- High compressive strength
- Lower toughness compared
to D2
Common Applications
- Cutting dies
- Thread rolling dies
- Knives and blades
- Cold extrusion tools
Why Die Makers Use D3
D3 is widely used where cutting performance and wear resistance are
critical, especially in heavy duty cutting operations.
5. EN31 Steel – High Hardness Bearing Steel
EN31 steel is a high carbon alloy steel commonly used in tools
requiring high hardness and wear resistance.
Key Properties
- High hardness after heat
treatment
- Good wear resistance
- Excellent surface finish
Common Applications
- Dies and punches
- Bearing components
- Gauges
- Rollers
Why Die Makers Use EN31
EN31 is often selected for applications requiring fine finish and
precision tooling.
|
DB6 Hot work Cr-Mo-V |
H13 Hot work Cr-Mo-V |
D2 Cold work Hi-Cr |
D3 Cold work Hi-Cr |
EN31Bearing Hi-C Cr |
|
Standard: DIN 1.2714 |
Standard: AISI H13 |
Standard: AISI D2 |
Standard: AISI D3 |
Standard: BS EN31 |
|
C content: 0.35% |
C content: 0.38% |
C content: 1.55% |
C content: 2.25% |
C content: 1.00% |
|
Hardness: 54–58 HRC |
Hardness: 48–54 HRC |
Hardness: 58–62 HRC |
Hardness: 60–64 HRC |
Hardness: 58–62 HRC |
|
Toughness &
durability |
Heat resistance |
High wear resistance |
Maximum hardness |
High hardness |
How to Choose the Right Tool Steel Grade
Selecting the right tool steel depends on several factors:
1. Application Type
Cold work operations require D2 or D3, while hot work processes
prefer H13.
2. Wear Resistance Requirement
For high wear conditions, D2 or D3 are excellent choices.
3. Impact Resistance
Applications with heavy loads benefit from DB6 tool steel.
4. Temperature Conditions
Hot forming applications require steels like H13 that can
withstand high
temperatures.
|
BEST
CHOICE BY APPLICATION |
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Why Die Makers Trust Virat Steels
At Virat Special Steels, we supply premium quality tool and
die steels for industries such as:
- Automotive manufacturing
- Forging industry
- Die making
- Precision engineering
Our wide range of tool steels ensures that die makers get the right
material for maximum performance and durability.
Frequently Asked Questions (FAQs)
1. What is tool steel used for in die making?
Tool steel is used to manufacture dies, punches, moulds, and cutting
tools because of its high hardness, wear resistance, and toughness.
D2, D3, H13, EN31, and DB6. The best grade depends on the application,
such as cold work, hot work, or high-wear operations.
Both D2 and D3 are cold work tool steels with high wear
resistance.
- D2 steel offers better
toughness and dimensional stability.
- D3 steel provides higher
hardness but lower toughness.
H13 tool steel is widely used in forging dies because it has excellent
heat resistance, toughness, and thermal fatigue strength, allowing it to
perform well at high temperatures.
Tool steels with a balance of toughness and wear resistance, such as DB6
and H13, are known to provide longer die life in demanding industrial
applications.
Tool and die steels are widely used in industries such as:
- Automotive manufacturing
- Forging and casting
- Metal stamping
- Plastic moulding
- Engineering and heavy
machinery
7. How does the right tool steel improve production efficiency?
Using the right tool steel grade improves die life, reduces maintenance,
minimizes downtime, and ensures consistent product quality, which ultimately
increases manufacturing productivity.
Conclusion
By understanding the properties and applications of each grade,
manufacturers can select the best tool steel for their specific requirements
for increasing production capacity.
Virat Special Steels has built a
reputation as one of India’s most trusted suppliers, known for expertise,
premium quality, and unmatched stock capabilities of various grades of Tool
& Die steels.
📞 Curious
about the right size, grades or technical specifications for your application? Our team is ready to guide you.
👉 Explore
more: www.viratsteels.com | 📧 info@viratsteels.com
| 📱 +91 98140-21775
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