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1.Introduction of JIS SKD11 steel
JIS SKD11 Tool Steel is a high-carbon and high-chromium alloy tool steel that is used for making long-life high-precision cold-work dies. SKD11 tool steel has good wear resistance and size ability after heat treatment. Otai special steel is JIS SKD11 tool steel china supplier and stockholders.
Related Specifications A681-1999 | Jis G4404(2000) | GB /T1299
2. Supply Range of JIS SKD11 steel
|
Shape |
Specification |
Surface |
|
Round bar |
Dia max 800mm Length: max 6m |
Black, peeled, machined(turned), polished(grounded) |
|
Flat bar |
Thickness: max 800mm Width: max 810mm Length: 6m |
Black, peeled, machined, polished(ground,grinded, milled) |
|
Note: We have our own cutting and processing equipment. Specifications can be cut and customized according to your requirements. |
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3.Chemical composition
|
C(％) |
1.40～1.60 |
Si(％) |
≤0.40 |
Mn(％) |
≤0.60 |
|
P(％) |
≤0.030 |
S(％) |
≤0.030 |
Cr(％) |
11.0～13.0 |
|
Mo(％) |
0.80～1.20 |
V(％) |
0.20～0.50 |
4.Equivalent Of SKD11 Tool Steel | flat steel bar
|
USA |
Germany |
China |
Japan |
France |
England |
Italy |
Poland |
ISO |
Austria |
Sweden |
Spain |
|
ASTM/AISI /UNS /SAE |
DIN, WNr |
GB |
JIS |
AFNOR |
BS |
UNI |
PN |
ISO |
ONORM |
SS |
UNE |
|
D2 / T30402 |
1.2379 / X155CrMoV12-1 |
CR12 MO1V1 / CR12MOV |
SKD11 |
X160Cr MoV12 |
BD2 |
5. SKD11 Steel Mechanical Properties
|
Mechanical Properties |
Metric |
Imperial |
|
Hardness, Knoop (converted from Rockwell C hardness) |
769 |
769 |
|
Hardness, Rockwell C |
62 |
62 |
|
Hardness, Vickers |
748 |
748 |
|
Izod impact unnotched |
77.0 J |
56.8 ft-lb |
|
Poisson’s ratio |
0.27-0.30 |
0.27-0.30 |
|
Elastic modulus |
190-210 GPa |
27557-30457 ksi |
Thermal Properties
|
Properties |
Conditions |
||
|
T (°C) |
Treatment |
||
|
Thermal expansion |
10.4 x 10-6/ºC |
20-100 |
– |
6. Heat treatment Related
Annealing of SKD11 Tool Steel | JIS Cold work Alloy Tool steel flat bar
Annealing temperature / ℃: 830 ~ 880, Hardness after annealing HRC: ≤255
Hardening of JIS Alloy tool steel SKD11 steel flat bar
Quenching temperature / ℃: 1030, Quenching medium: air-cooled, Tempering temperature / ℃: 180
After quenching and tempering hardness HRC: ≥58
Forged of Japanese JIS SKD11 steel bar
Thermal processing temperature / ℃ | Start: 1000
Thermal processing temperature / ℃ | Termination: 800
Physical Properties and Mechanical Properties of JIS SKD11 flat steel bar
The mechanical properties of annealed JIS SKD11 steel are outlined in the table below
Poisson’s ratio 0.27-0.30, Elastic modulus 190-210 GPa ,
The Physical proerties of skd11 cold work alloy tool steel as below:
Density 7.7 x 1000 kg/m3 ; Melting point 1421°C (2590°F)
7. Applications
SKD11 Tool Steel is used in the making of knife-edge mold, scissors, circular saw blades, metal stamping mold. Used to make cold work or hot work dressing dies, sides of rollers, screw lines, lines dies, transformer core stamping dies, rolled knives, steel tube forming rollers, special molding rollers, screw heading molds, etc. Also used for blanking dies, stamping dies and pressing dies with a thickness ≤ 6mm. It can also be found in the production of various kinds of scissors, inlaid blades and thread rolling dies. It is also used to make wear-resistant slider cold heading dies, deep drawing molding dies, cold extrusion dies and in the making of thermosetting resin molding dies and common plastic dies.
8. Processing
SKD11 tool steel round bar and flat sections can be cut to your required sizes. SKD11 ground steel bar can also be supplied, providing a high quality tool steel precision ground tool steel bar to your required tolerances. SKD11 tool steel is also available as Ground Flat Stock / Gauge Plate, in standard and nonstandard sizes.
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