D2 TOOL STEEL

D2 Tool Steel Supplier in China

AISI D2 / DIN 1.2379 / JIS SKD11 Cold Work Tool Steel

D2 tool steel is one of the most widely used high-carbon high-chromium cold work tool steels in the world. Known for its excellent wear resistance, high hardness capability, and good dimensional stability after heat treatment, D2 steel is widely used for precision tooling and high-performance cold work applications.

At Hubei Risin Mould Material Co., Ltd., we supply a complete range of D2 round bar, D2 flat bar, D2 plate, and D2 forged blocks in rolled 

and forged conditions.

Our D2 tool steel is widely used for:

✔Progressive stamping dies

✔Punches and dies

✔Cutting tools

✔Cold forming tools

✔Precision industrial components

With stable quality control, professional processing capability, and export experience, Risin provides reliable cold work tool steel solutions for 

customers worldwide.

Chemical Composition (AISI D2 / DIN 1.2379)

For applications requiring higher toughness and improved internal cleanliness, Risin can supply ESR D2 tool steel with enhanced carbide distribution and better performance.

Key Properties

Excellent Wear Resistance

The high carbon and chromium content of D2 steel creates a high volume of hard carbides, providing excellent resistance to abrasive wear.

This makes D2 suitable for applications requiring:

✔Long tool life

✔High cutting performance

✔Reduced maintenance frequency

High Hardness Capability

After proper heat treatment, D2 tool steel can achieve high hardness while maintaining good dimensional stability.

Typical working hardness:

HRC 58-62

depending on application requirements and heat treatment conditions.

Excellent Dimensional Stability

D2 provides good stability during heat treatment compared with many high-carbon tool steels.

This advantage is important for:

✔Precision stamping dies

✔Measuring tools

✔Complex tooling components

where dimensional accuracy is critical.

Good Compression Strength

D2 steel provides excellent resistance against compressive stress.

It performs well in applications including:

✔Punching

✔Blanking

✔Cold forming

✔High-pressure tooling

Balanced Toughness and Wear Resistance

Although D2 is a high wear-resistant steel, it also provides sufficient toughness for many cold work applications.

Proper heat treatment and steel quality are essential to achieve the best balance.

Applications

D2 Steel for Stamping Dies

D2 is one of the most popular materials for precision stamping applications.

Typical components include:

✔Progressive dies

✔Punches

✔Blanking dies

✔Forming dies

✔Shearing tools

Suitable for industries such as:

✔Automotive parts

✔Electronics components

✔Hardware products

D2 Steel for Cutting Tools

Due to its excellent wear resistance, D2 is widely used for industrial cutting applications.

Applications include:

✔Slitting knives

✔Shear blades

✔Cutting dies

✔Industrial blades

D2 Steel for Cold Forming Tools

D2 provides reliable performance in cold forming applications.

Typical applications:

✔Cold heading dies

✔Thread rolling tools

✔Forming punches

✔Extrusion tooling

D2 Steel for Precision Mold Components

For applications requiring high wear resistance and dimensional accuracy, D2 can be used for:

✔Mold inserts

✔Wear plates

✔ Precision components

D2 Tool Steel Products Available from Risin

Risin supplies D2 steel in different product forms:

D2 Steel Round Bar

Suitable for:

• Punches

• Pins

• Tooling components

• Precision machining parts

Available options:

✔ Rolled round bar

✔ Forged round bar

✔ Peeled surface

✔ Turned surface

✔ Customized cutting

D2 Steel Plate and Block

Suitable for:

✔Stamping dies

✔Mold components

✔ Industrial tooling

Processing options:

✔ Saw cutting

✔ Milling

✔ Rough machining

✔ Customized dimensions

Quality Control & Inspection

Every D2 tool steel shipment from Risin is supported by a complete quality assurance system:

✔Chemical analysis by spectrometer for every heat

✔Full traceability through heat numbers

✔Ultrasonic testing (UT) according to ASTM A388 or equivalent

✔Hardness testing

✔Surface quality inspection

✔Mill Test Certificate (MTC) according to EN 10204 3.1

Our quality control covers:

✔Steelmaking

✔Rolling and forging

✔Heat treatment

✔Final inspection

ensuring consistent performance from batch to batch.

Production Lead Time

Standard production lead time:

30-50 days

depending on:

✔Product dimensions

✔Steel condition

✔ Surface finish

✔Machining requirements

Stock sizes can be supplied faster depending on availability.

Export Packaging

Risin understands the importance of protecting tool steel during international transportation.

Our export packaging includes:

✔Anti-rust oil protection

✔Waterproof wrapping

✔Vapor barrier film

✔Strong wooden crates

✔Steel strapping for heavy materials

✔Clear shipping marks

All packages are prepared to ensure safe delivery to customers worldwide.

Why Source D2 Tool Steel from Risin?

1. Professional Cold Work Tool Steel Supplier

Risin supplies a complete range of cold work tool steels including:

✔D2

✔1.2379

✔SKD11

✔DC53

✔Other customized grades

providing reliable material solutions for tooling industries.

2. Rolled and Forged D2 Supply

Different applications require different steel conditions.

Risin provides:

✔Rolled D2 steel for standard tooling applications

✔ Forged D2 steel for larger sections and critical components

Helping customers select suitable material according to application requirements.

3. Stable Quality and Full Traceability

Each D2 shipment includes:

✔ Heat number

✔Chemical composition

✔Inspection results

✔ Mill Test Certificate

Providing transparent quality control from steel production to final delivery.

4. Rough Machining Capability

To improve production efficiency, Risin provides:

✔ Saw cut blanks

✔Peeled round bars

✔Turned bars

✔Rough machined blocks

Helping customers reduce machining time and material waste.

5. Flexible Supply Solutions

Risin supports:

✔Standard stock sizes

✔Customized dimensions

✔ Trial orders

✔ Long-term supply cooperation

6. Complete Export Documentation

Each shipment can include:

✔MTC

✔Commercial invoice

✔ Packing list

✔Shipping documents

Supporting smooth import procedures worldwide.

7. Technical Support Partner

Risin provides technical support beyond material supply.

We assist customers with:

✔Steel grade selection

✔vHeat treatment discussion

✔ Application analysis

✔ Tool steel solutions

FAQ About D2 Tool Steel

1. What is D2 tool steel used for?

D2 tool steel is mainly used for stamping dies, cutting tools, punches, cold forming tools, and wear-resistant industrial components.

2. Is D2 the same as 1.2379?

Yes, D2 and DIN 1.2379 belong to the same high-carbon high-chromium cold work tool steel family under different international standards.

3. Is D2 the same as SKD11?

D2 and SKD11 are similar cold work tool steels and are often considered equivalent grades. However, chemical composition requirements may vary depending on the standard and steel mill.

4. What hardness can D2 steel reach?

After heat treatment, D2 steel commonly reaches approximately 58-62 HRC, depending on application requirements.

Contact Risin For D2 Tool Steel Solutions

Looking for a reliable D2 tool steel supplier, 1.2379 steel supplier, or SKD11 steel supplier?

Hubei Risin Mould Material Co., Ltd. provides high-quality cold work tool steel products for:

✔ Stamping manufacturers

✔ Mold makers

✔ Tool steel distributors

✔ Industrial tooling companies 

Contact us today for:

✔ D2 steel quotation

✔ Stock availability

✔ Customized sizes

✔ Technical support