SKD11 Tool Steel
SKD11 Tool Steel
SKD11 is the tool steel, die steel, and high carbon steel possessing high hardness, strength and wear resistance. Its surface is grinded precisely. It is often used for the stamping dies, plastic molds, and so on. 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. FUSHUN special steel is JIS SKD11 tool steel china supplier and stockholders.
Form of Supply
SKD11 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.
International Comparison of Materials
| EU EN |
INTER ISO | USA AISI |
JAPAN JIS |
GERMANY DIN |
CHINA GB |
FRANCE AFNOR |
ITALY UNI |
| — | — | D2 | SKD11 | X165CrMoV12 | Cr12MoV | — | — |
| SPAIN UNE |
Sweden SS |
Finland SFS |
Poland PN |
Czechia CSN |
Austria ONORM |
Russia GOST |
England BS |
| — | — | XW-41 | — | — | — | BD2 | — |
Chemical Composition(JIS G4051)
| C(%) | Si(%) | Mn(%) | P(%) | S(%) | Ni(%) | Cr(%) | V(%) | Cu(%) |
| 1.4-1.6 | 0≦0.4 | 0≦0.6 | 0≦0.03 | 0≦0.03 | 0≦0.5 | 11.0-13.0 | 0.2-0.5 | 0≦0.25 |
Smelting Option
1 EAF: Electric Arc Furnace
2 EAF+LF+VD: Refined-smelting and vacuum degassing
3 EAF+ESR: Electro Slag Remelting
4 EAF+PESR: protective atmosphere Electro Slag Remelting
5 VIM+PESR: Vacuum induction melting
Forming Option
1 Hot rolling process
2 Hot Forging: Electro-hydraulic; High-speed-hydraulic; Oil-hydraulic; Precision-forging
Heat-treatment Option
1 +A: Annealed (full/soft/spheroidizing)
2 +N: Normalized
3 +NT: Normalized and tempered
4 +QT: Quenched and tempered (water/oil)
Suface Option
1 Black Surface
2 Grounded: Bright but rough ; Not precision
3 Machining for plate: Bright and precision; Little turning scar
4 Peeled/Turned: Bright and precision; Little turning scar
5 Polished: Very Bright and precision size; Not turning scar
Other Services
1 Cutting: Small pieces
2 CNC Machine: Produce as your drawing
3 Package: Bare/Nylon/Canvas/Wooden
4 Payment:T/T, L/C, O/A(request credit)
5 Transport:FOB/CFR/CIF/DDU/DDP (train/ship/Air)
Conditions of heat treatment
Annealing: 830~880℃ Furnace Cooling
Hardening: 1000~1050℃ Air Cooling
Tempering: 150~200℃ Air Cooling or 530~550℃ Furnace Cooling
Criterion for heat treating conditions revise:
Ac: 815~875℃
Ar: 765~705℃
Ms: 200℃
Mechanical properties
Tensile strength (kgf/mm²): 128
Yield strength (kgf/mm²): 103
Elongation (%): 15.6
Cross section reduction rate (%): 38
Impact value (J/cm2): 2
Hardness (Hb) : 41
Size Range
| Shape | Size(mm) |
| Round Bar | 8.2, 9.2, 10.2, 11.2, 12.2, 13.2, 14.2, 15.2, 16.2, 17.2, 18.2, 19.2, 20.2, 22.2, 24.2, 25.2, 26.2, 28.2, 30.2, 32.2, 34.2, 36.2, 38.2, 40.2, 42.2, 44.2, 46.2, 48.2, 51, 56, 61, 66, 71, 76, 81, 86, 91, 96, 101, 111, 121, 131, 141, 151, 161, 171, 181, 191, 201, 211, 221, 231, 241, 251, 261. |
Steel Application
The types of cutting tools are diverse, such as: milling cutter, drill bit, circular saw blade, reamer, PCD (Polycrystalline Diamond) cutting tools, annular cutter, lathe cutting tool, punch cutting tool, etc. The material quality of woodworking cutting tool usually affects the surface performance of machining, efficiency, tool life, and other factors. Therefore, the material of woodworking cutting tool should have the high hardness, wear resistance, sufficient strength, toughness, heat resistance, etc.The materials of cutting tools we recommend are as below.
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)
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.
Regular size and Tolerance of JIS SKD11 Cold Work Tool Steel
Steel round bar: Diameter Ø 5mm – 3000mm
Steel plate/ steel flat bar: Thickness 5mm – 3000mm x Width 100mm – 3500mm
Steel Hexagonal bar: Hex 5mm – 105mm
Others EN3 steel have not specified size, pls contact our experienced sales team.
| 1) Hot Rolled round bar | |||
| Diameter (mm) |
Diameter Tolerance (mm) |
Diameter (mm) |
Diameter Tolerance (mm) |
| 6.4～15.8 | -0.038 ～0.038 | 181～<206.2 | 0～1.6 |
| 15.8～<77.6 | 0～0.10 | 206.2～<257 | 0～2.4 |
| 77.6～<103 | 0～0.15 | 257～<307.7 | 0～3.2 |
| 103～<181 | 0～0.78 | ≥307.7 | 0～4.7 |
| 2) Hot Rolled steel plate | |||
| Thickness (mm) |
Thickness Tolerance (mm) |
Thickness (mm) |
Thickness Tolerance (mm) |
| ≤25.4 | -0.41～0.79 | >127～152 | -1.60～2.39 |
| >25.4～76 | -0.79～1.19 | >178～254 | -1.98～3.18 |
| >76～127 | -1.19～1.60 | >254～305 | -2.39～3.96 |
Others have not specified size, pls contact our experienced sales team.
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.
Examples like stamping mold, plastic mold and other multi-function items.After quenching, residual austenite is about 13% to 20%. It can be eliminated by cryogenic treatment or tempering process. For the molds requiring both hardness and toughness, it is safer to use the hardness of HRC58 with tempering process and secondary hardening To increase the abrasion resistance of SKD11, you can use low-temperature tempering, and with the cryogenic treatment, life can be extended. It can also be prevented from being deformed at the same time. Generally speaking, SKD11 uses 550 ~ 530 degrees for tempering However, if you want to increase the abrasion resistance, you need to use low-temperature tempering. Both have advantages and disadvantages.After tempering, it is with better toughness and increase the rupture resistance. The low-tempering has good abrasion resistance and long service life
Features：
Good Wear-Resisting，Good Quenching，Less Deformation
Heat-Treated Steel，Hardness: HRC 58-62 Degree
Average Price, High Hardness, Most commonly Used Plate
Most Commonly Used on Molding
High Carbon/Chromium Alloy Steel. High Hardness and Proper Toughness w/Tempering Hardening Effect. It is the typical wind-hardened steel and is currently the best wear resistance of alloy tool steel. Adding molybdenum, vanadium and other elements, it’s with wear-resisting, non-deformation, impact-resistance and other characteristics.
Secondary Refining, Good Cleanliness, Fine Grain
Application Range: SKD11 is often used in the main template(example: up, down templates, stripper plate and etc.) such as the steel plate for pad printing. Hardness falls at HRC60 ~ 62 degrees.
SKD11 Tool Steel is a high- carbon and high- chromium alloy tool steel. It has good wear resistance and size ability after heat treatment and is suitable for making long-life high-precision cold-work dies.
SKD11 Tool Steel of Applications:
1) Making knife-edge mold, scissors, circular saw blades, metal stamping mold.
2) Making cold work or hot work dressing dies, sides of rollers, screw lines, lines dies,
Specifications
| Material | Alloy Tool Steel round or plate Bar DC53,Cr8Mo1VSi | Round bar | Dia(mm) | 18mm-220mm |
| Process | EAF + LF + VD + Forged + Heat Treatment (optional) | Length (mm) | 2000mm-6000mmm | |
| Heat treatment | Annealed / Quenched / tempered | Plate bar | Thickness | 20mm-400mm |
| Delivery condition | grinded,black,machined | Width(mm) | 60mm-600mm | |
| Test | Ultrasonic test according to SEP 1921-84 D/d | Length (mm) | 2000mm-6000mmm |
Other details
| Process | EAF+LF+VD+(ESR)+Forging+(Rolling)+Annealing Condition (optional) |
| Delivery Condition | grinded,black,machined |
| Technical Data | According to customer’s requirements |
| Ultrasonic Test | Ultrasonic test according to SEP 1921-84 G3 D/d E/d |
