Guangzhou Changfeng Steel Co., LTD |
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1.2080 SKD1 D3 Cr12 Alloy Tool Steel Plate with High Hardenability
AISI D3 cold work steel, also know as DIN 1.2080 (Werkstoff) and
JIS SKD1, is a 12% chrome alloy steel. D3 cold work steel has very
high wear resistance against abrasive and adhesive wear due to the
high volume of hard carbides in the steel matrix, medium toughness,
dimensionally stable, high compressive strength, not secondary
hardenable. Type AISI D3 cold works tool steel is oil-quenched;
though small sections can be gas quenched after austenitization
using vacuum. As a result, tools made with type D3 cold work tool
steel tend to be brittle during hardening. Type D2 tool steel is
the most commonly used steel among the group D steels. The D3 cold
work steels contain 1.5 to 2.35% of carbon and 12% of chromium.
D3 tool steel is a high-carbon, high-chromium, oil hardening tool
steel that is characterized by a relatively hifh attainable
hardness and numerous, large, chromium-richi alloy carbides in
microstructure. These carbides provide good resistance to wear form
sliding contace with other metals and abrasive materials.
1, Steel Grade: 1.2080/ D3/ SKD1/Cr12 Cold Work Mould Steel.
2, Specification
Chemical Compositons | ||||||||
Grade | C | Si | Mn | P | S | Cr | W | V |
Cr12 | 2.00-2.30 | ≤0.40 | ≤0.40 | ≤0.030 | ≤0.035 | 11.50-13.0 | - | - |
3, Heat treatment
Quenching | Tempering | |||||
Heating temperature/ºC | quenching temperture | Hardness (HRC) | Tempering temperature /ºC | Tempering number | Hardness (HRC) | |
First preheating | Second preheating | |||||
180-200 | 320-350 | 950-980 | 57-62 | 550-560 | 2 | ≥58 |
4, Application
1) Used for making small impact, high quality wear cold-punching
mould;
2) Used for the high durability of the long life of various types
of cold stamping die and cold cutting edge, such as rolling plate;
3) To make high wear resistance cold working die arrangement which
working under low impact olad;
4) Suitable for complex deformation of mould;
Typical Applications
Highly stressed cutting, Punching tools for thin sheets,Shear
blades for cuttingProfile rolls,Drawing and deep drawing
tools,Stone processing tools,Knives for paper and plastics,Shear
knives for thin sheets.Deep drawing,Pressure padsHighly
wear-resistant plastic moulds.
Applications Show:
5, Features
1) High hardenability, high hardness, high wear resistance and good
toughness, quenching deformation, etc;
2) High carbon high chromium tool steel;
3) Good machinablity and inoxidizability;
4) Immune from sinking in use, high resistance to heavy pressure.
6, Delivery condition
Surface: Grinding surface, black surface, turned surface and
milling surface according to customer's requirements.
7, Delivery Date
For abundant stock, 7-15 days.
For customized products, 15-30 days.
Products Show:
1.2080 SKD1 D3 Cr12 Alloy Tool Steel Plate with High Hardenability
8, Packing: We provide standard export packing or according to customers'
request.
About us
Guangzhou Changfeng Steel Co., Ltd. is a professional special steel company, which specializing in
this line since 2005 in China. Our main products are Plastic Mould
Steel, Hot Work Mould Steel, Cold Work Mould Steel, Alloy
Structural Steel, Tool Steel, Stainless Steel, Carbon Steel and
Forged Block.
To ensure provide high quality products to customers, we have close
cooperation with many Chinese first class special steel
enterprises, including Baosteel Group, Dongbei Special Steel,
Changcheng Special Steel, Hongsheng Heavy Industry, Xingcheng
Special Steel and Daye Special Steel.
We have thousand tons of stock materials in our own factory and
also can provide processing services to customers. We are full of
export experience for many years, the product covers America,
Germany, France, Italy, Turkey, Singapore, Thailand, Malaysia,
Vietnam, Taiwan, and Middle-East.
1.2080 SKD1 D3 Cr12 Alloy Tool Steel Plate with High Hardenability
AISI D3 alloy steel is heat treatable and will offer a hardness in
the range 58-64 HRC. After heat treatment D3 tool steel is hard,
durable and dense, and is immune from sinking in use. It offers a
measure of corrosion resistance when polished. In general, the
applications of AISI D3 tool steel resemble those of D2 tool steel
but it should be remembered that alloy tool steel D3 has better
wear resistance of the two steels and is preferred for such items
as shear blades. Owing to its higher wear resistance, AISI / ASTM
D3 cold work steel is slightly more difficult to grind than D2
steels.
Forging of D3 Cold Work Tool Steel
Pre-heat at 900-950°C then raise temperature to 1050-1100°C. Soak
until uniformly heated. D3 tool steel is relatively hard at
elevated temperature. Therefore, initial hammer blows must be light
and the temperature must not be allowed to fall below 1020°C until
the metal begins to flow. Final forging should not be done below
900°C.
Heat Treatment of D3 Cold Work Steel
Heat Treatment
D3 tool steel requires hardening and tempering to achieve maximum
properties. For maximum accuracy, the parts of D3 tool steel should
be stress relieved after roughing operations. Stress should be
relieved at 648°C (1200°F) for one hour and cooled slowly.
Annealing
Heat D3 tool steels uniformly to 850-870°C, soak thoroughly, then
slow furnace cool at a rate of not more than 25°C per hour to
650°C. The parts may then be air cooled. This should result in a
maximum hardness of brinell 248.
Tempering
The D3 cold work steel should be cooled to room temperature and
should be tempered immediately. The parts should be placed in the
tempering furnace and increased slowly to the desired tempering
temperature. Tempering for 1 hour per inch of thickness is
required.
Hardening
D3 tool steel is extremely sensitive to overheating during
hardening - do not overheat.
Pre heat slowly to 800-850°C, the raise rapidly to 950-970°C and
soak until completely equalised. Quench in oil.