Standard ESR Cold Work Tool Steel AISI D2 JIS SKD11 DIN1.2379 Flat
Bar
Product Introduction
1.2379 is a high carbon and chromium alloy tool steel, which has
high hardness and wear resistance after heat treatment, and has
strong hardenability and good dimensional stability.
D2 steel is a high wear resistant micro deformation cold working
die steel, belonging to air hardening tool steel. With high quality
fraction of carbon and high chronic, the hardness can up to 60HRC
after heat treatment, but malleability,toughness,rust resistance is
not good and the surface of the steel is also difficult to be
polished.
With the development of cold stamping products moving towards high
accuracy,high efficiency, varieties, we require the mould steel
should has good wear resistance and high toughness.
Compared with Cr12MoV steel, this D2 die steel adds Mo,V
compositions,changed the steel cast structure, improved the
morphology of ledeburite , toughness and wear resistance are better
than Cr12MoV steel, improved the service life as well.Because of
the yield point and plastic deformation resistance is higher than
Cr12MoV steel, so that forging performance and hot molding
properties are a little weak than Cr12MoV steel.
Features
1. High wear resistance
2. High compressive strength
3. Good dimensional stability
4. Good processability
5. Excellent resistance to temper softening
6. Good toughness
Similar Standards
| Chinese | American | German | Japanese |
| GB | AISI | DIN | JIS |
| Cr12Mo1V1 | D2 | 1.2379 | SKD11 |
Chemical Composition
| Grades | C | Si | Mn | P | S | Cr | Mo | V |
| 1.2379 | 1.5-1.6 | 0.1-0.4 | 0.15-0.45 | ≤0.003 | ≤0.03 | 11-12 | 0.6-0.8 | 0.9-1.1 |
| D2 | 1.4-1.6 | 0.3-0.5 | 0.3-0.5 | ≤0.03 | ≤0.03 | 11-13 | 0.7-1.2 | 0.8 |
| Cr12Mo1V1 | 1.4-1.6 | ≤0.6 | ≤0.6 | ≤0.03 | ≤0.03 | 11-13 | 0.7-1.2 | 0.5-1.1 |
| SKD11 | 1.4-1.6 | ≤0.4 | ≤0.6 | ≤0.03 | ≤0.03 | 11-13 | 0.8-1.2 | 0.2-0.5 |
Heat Treatment
| Quenching | Tempering |
| Heating Temperature/℃ | Cooling | Hardness/HRC | Heating Temperature/℃ | Cooling | Hardness/HRC |
| 980-1040 | Oil or air | 60-65 | 180-220 | Air | 60-64 |
| 1060-1100 | 60-65 | 510-540 | 60-64 |
General Applications
1. 1 Thin sheet with a thickness of not more than 2mm,
high-efficiency blanking die, punching die and stamping die
2. 2. Various scissors, inlaid blades, wood working blades
3. 3. Thread rolling die and wear-resistant slider
4. 4. Cold heading mould, thermosetting resin molding die
5. 5. Deep drawing die, cold extrusion die
Stock Size
| Flat Bar | Thickness | 6-160mm |
| Width | 155-810mm |
| Length | 3000-6000mm |
Round Bar  | Diameter | 14-80mm |
| Length | 300-6000mm |
Sizes and Conditions
Our steel materials are in different sizes and conditions specially
catered to our customers' needs. They come in round bars, flat
bars, plates and blocks.
The conditions of the materials vary from pre-hardened, hot
rolled,annealed, quenched and tempered to surface conditions such
as black, pre-machined,griding and polish.
Why choose us?
Quality Assurance from government owned steel mills
At die & tool steel , we meticulously source materials only from
steel manufacturers to ensure consistency in providing the finest
quality steel products for our customers.
Being in the competitive market today, we clearly understand that
customers are looking for products that are not only best in class
but also affordably priced. We are confident that we are able to
ful fil these two equally vital aspects –our customers' continuous
support over the past two decades is the most heartfelt recognition
to us.
Speedy and Timely Delivery
Knowing that delivering goods to customers' hands on time is as
important as providing quality goods, we treat every business
transaction as a priority. Be it a raw material or a finished
material with machining or heat treatment, every effort will be
made to get your purchase order to you in the shortest lead time.
Quality Commitment
In order to realise competitive products to fulfil our customers'
demands and quality considerations, our integrated quality and work
management system is continuously being improved and developed
further. We document this for our customers by having our quality
management system certified in accordance with ISO 9001. This
measure is accompanied by audits and recertification's on a
regularly prescribed basis.
Our service
We provide quality special steel for all industries.
Orders of any size, any length, ship fast
We carry a unique inventory of specialty special steel
Provide related value-adding services :
metal cutting, sizing, machining (blanking, milling, grinding), and
heat treatment.
Sawing for small or large quantities, sawing-to-size.
Excellent customer service
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