Product Description
D3 Tool Steel
D3 tool steel China supplier and stockholders, Otai special steel
is suppliers of D3 tool steel in steel round, plate, flat,sheet and
block.
D3 Tool Steel is an air hardening, high-carbon, high-chromium tool
steel that displays excellent abrasion and wear resistance and has
good dimensional stability and high compression strength. D3 Tool
Steel is heat treatable and offers hardness in the range of ****4
HRC. Due to its abrasion resistance in the hardened condition, D3
tool steel machining should be limited to finished grinding.
D3 tool steel Related Specifications A*******9
D3 Tool steel Chemical composition
|
C(%)
|
2.*0~2.*5
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Si(%)
|
0.*0~0.*0
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Mn(%)
|
0.*0~0.*0
|
|
P(%)
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≤0.**0
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S(%)
|
≤0.**0
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Cr(%)
|
*1.0~*3.5
|
|
W(%)
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≤1.*0
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V(%)
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≤1.*0
|
|
|
D3 tool steel Form of Supply
D3 tool steel, we can supply the round bar, flat bar, plate
and square block. Diameters can be sawn to your required lengths as
one offs or multiple cut pieces. Rectangular pieces can be sawn
from flat bar or plate to your specific sizes. Ground tool steel
bar can be supplied, providing a quality precision finished bar to
tight tolerances.
D3 tool steel Applications
D3 Tool Steel is used for Blanking and forming dies, Forming rolls,
Press tools, Punches, bits and Bushes.
Physical properties of D3 alloy tool steel
Density: 7.*5kg/cm3
Hardness at annealing: **5HB Max
Hardness at quenching and tempering(Q+T): ****2HRc
Mechanical properties of D3 tool steel alloy material
Izod impact unnotched: *8.0 J
Poisson's ratio: 0.***0.*0
Elastic modulus: ******0 GPa
Thermal Properties
The thermal properties of D3 steels as below:
Thermal expansion: *2 x ***6/ºC, at *****0 °C
Equivalent metals material l of D3 Tool steel
AFNOR Z **0 C *2
DIN WN-r 1.***0
UNI X *1O Cr *3 KU
JIS SKD1
B.S. BD 3
ASTM A**1
FED QQ-T***0
SAE J**7
GB Cr*2
UNS T****3
D3 cold work tool steel Forged
Heat to ********0°C, soak enough time, until heat thoroughly.
then forging temperature no below **0°C.
Stress Relieving
When D3 steel tool parts are heavily machined, ground or otherwise
subjected to cold work, the stress is recommend.
D3 steel cold work tool Hardening
D3 steel Packing hardening is recommended. When heat the
tools in a controlled atmosphere is not possible.
Pre-heat to ******0°C slowly, soak enough time,
then up to ********0°C cool in air, or up to **0°C for
oil quenching.
Martempering of cold work D3 tool steel material
Pre-heat dry at ******0°C. Pre-heat in salt at ******0°C holding in
the salt for ten mins *5mm of ruling section. Then Raise to
******0°C , keep in the salt for ten minutes *5mm of ruling
section. Marquench in salt at ******0°C holding in the bath for
five minutes *5mm of ruling section. Cool in still air. Tempering
will be necessary.
Cold work D3 tool steel Annealing
Heat to **0 °C, cool slowly at a rate of not more than 6°C per
hour,Then cool the D3 steel material in air.
Tempering of D3 alloy steel cold work tool material
Different application need make different heat treatment.
Tempering Double is recommended. D3 tool steel Typical
Tempering data as below:
|
Temperature [°C]
|
**0
|
**0
|
**0
|
**0
|
**0
|
**0
|
|
Hardness [HRc]
|
****1
|
****0
|
****9
|
****6
|
****5
|
****5
|
Final Grinding of D3 cold work tool steel
Wet grinding is a preferable option. If dry grinding use a soft
wheel is better.
D3 tool steel Regular size and Tolerance
|
1) Hot Rolled round bar
|
Diameter
(mm)
|
Diameter Tolerance
(mm)
|
Diameter
(mm)
|
Diameter Tolerance
(mm)
|
|
6.4~*5.8
|
*0.**8 ~0.**8
|
**1~<**6.2
|
0~1.6
|
|
*5.8~<*7.6
|
0~0.*0
|
**6.2~<**7
|
0~2.4
|
|
*7.6~<**3
|
0~0.*5
|
**7~<**7.7
|
0~3.2
|
|
**3~<**1
|
0~0.*8
|
≥**7.7
|
0~4.7
|
|
|
|
|
|
|
2) Hot Rolled steel plate
|
Thickness
(mm)
|
Thickness Tolerance
(mm)
|
Thickness
(mm)
|
Thickness Tolerance
(mm)
|
|
≤*5.4
|
*0.*1~0.*9
|
>**7~**2
|
*1.*0~2.*9
|
|
>*5.4~*6
|
*0.*9~1.*9
|
>**8~**4
|
*1.*8~3.*8
|
|
>*6~**7
|
*1.*9~1.*0
|
>**4~**5
|
*2.*9~3.*6
|
Others have not specified size,
pls contact our experienced sales team.
D3 tool steel Processing
D3 Tool Steel round bar and flat sections can be cut to your
required sizes. D3 ground steel bar can also be supplied, providing
a high quality tool steel precision ground tool steel bar to your
required tolerances. D3 Tool Steel is also available as Ground Flat
Stock / Gauge Plate, in standard and nonstandard sizes.
Contact our experienced sales team to help you with your D3 tool
steel questions by emailor telphone. The questions
will be reply in *4 hours.
| Country: |
China |
| Model No: |
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| FOB Price: |
(Negotiable)
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| Place of Origin: |
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