JIS SKD11(GB/TCr12Mo1V1) Cold Worked Tool Steel
Superior Abrasion Resistance
SKD11’s high chromium content forms dense carbides, providing unmatched resistance to abrasive wear. This makes it ideal for shear blades and blanking dies, where edge retention is critical.
Precision Heat Treatment
With minimal distortion during quenching (<0.05%), SKD11 maintains tight tolerances for precision tools like thread-rolling dies and mold inserts. Cryogenic treatments further enhance hardness and stability.
Broad Industrial Adaptability
From automotive stamping dies to plastic mold cavities, SKD11 adapts to diverse applications. Its thermal stability (up to 500°C) and polishability make it a top choice for high-gloss injection molds and aerospace components.
- HONGXIN
- 中国
- 30DAYS
- 8000TONS/MONTH
- Information
JIS SKD11（GB/T Cr12Mo1V1) Cold Worked Tool Steel
1.JIS SKD11 Tool Steel Introduction
JIS SKD11 is a high-carbon, high-chromium cold work tool steel renowned for its exceptional hardness (58-63 HRC), wear resistance, and dimensional stability. Composed of 1.40-1.60% carbon, 11.0-13.0% chromium, and 0.80-1.20% molybdenum, it is a cornerstone material for precision tooling, including blanking dies, shear blades, and injection molds. Its optimized alloy design ensures minimal distortion during heat treatment, making it ideal for complex geometries. Widely used in automotive, aerospace, and manufacturing industries, SKD11 combines durability with cost-effectiveness, offering extended tool lifespan under extreme conditions.
| Heat teatment | Normalized ; Annealed ; Quenched ; Tempered | |
| Surface condition | Black; Peeled; Polished; Machined; Grinded; Turned; Milled | |
| Delivery condition | Forged; Hot rolled; Cold drawn | |
| Test | Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. | |
| Payment terms | T/T;L/C;/Money gram/ Paypal | |
| Trade terms | FOB; CIF; C&F; etc.. | |
| Packing | Standard Packages, or as Customers Request | |
| Delivery time | 30-45 days | |
2. JIS SKD11 Tool Steel Supply Range
| Size | Round | Dia 6-1000mm |
| Plate/Flat/Block | Thickness 8mm-300mm | |
| Width 210mm-710mm | ||
| Process | EAF+LF+VD+Forged+Heat treatment(optional |
3. JIS SKD11 Tool Steel Chemical Composition& Global Equivalents
Country | China | Japan | Germany | USA |
Standard | GB/T 1299 | JIS G4404 | EN ISO 4957 | ASTM A681 |
Grade | Cr12Mo1V1 | SKD11 | 1.2379 | D2 |
Grade | C | Si | Mn | P | S | Cr | Mo | V |
Cr12Mo1V1 | 1.4-1.6 | ≤0.60 | ≤0.60 | 0.03 | 0.03 | 11-13 | 0.7-1.2 | ≤1.10 |
SKD11 | 1.4-1.6 | 0.4 | 0.6 | 0.03 | 0.03 | 11-13 | 0.8-1.2 | 0.2-0.5 |
1.2379 | 1.45-1.6 | 0.15-0.6 | 0.2-0.6 | 0.03 | 0.03 | 11-13 | 0.7-1.0 | 0.7-1.0 |
D2 | 1.4-1.6 | 0.1-0.6 | 0.1-0.6 | 0.03 | 0.03 | 11-13 | 0.7-1.2 | 0.5-1.1 |
4. JIS SKD11 Tool Steel Physical & Mechanical Properties
Physical Properties
| Property | Metric Units |
|---|---|
| Density | 7.8 g/cm³ |
| Thermal Expansion (20-200°C) | 11×10⁻⁶/°C |
| Thermal Conductivity | 25 W/(m·K) |
Mechanical Properties
| Property | Metric Units |
|---|---|
| Hardness (Quenched & Tempered) | 58-63 HRC |
| Tensile Strength | ≥2300 MPa |
| Yield Strength | ≥1960 MPa |
| Impact Toughness (Charpy) | 10-15 J |
5. JIS SKD11 Tool Steel Heat Treatment
Annealing
Annealing of JIS SKD11 tool steels material should be done at 871 to 898°C (1600 to 1650°F) followed by slow furnace cooling at 4.4°C (40°F) per hour or less.after which cooling rate may be increased. Suitable precautions must be taken to prevent excessive carburization or decarburization.
Stress Relieving
When desirable to relieve the strains of machining, heat JIS SKD11 grade steel slowly to 1050°-1250°F, allow to equalize, and then cool in still air (Strain Relieving).
Preheat Prior To Hardening
Preheat slowly to 1350°-1450°F and hold at this temperature until grade steel JIS SKD11 material is uniformly heated.
Hardening
After thorough preheating, heat to 1800°-1850°F. Hold the work piece at the hardening temperature until it is completely and uniformly heated.
Quenching
JIS SKD11 steel tool material is an air hardening steel and will develop hardness on cooling in still air. To avoid scaling and prevent decarburization of the work piece surface, controlled atmosphere or vacuum furnaces are recommended. If these furnaces are not available, pack hardening, salt baths or wrapping the piece in stainless steel foil will provide some degree of surface protection in the hardening process. Parts should be allowed to cool to 150F, or to where they can be held in the bare hand, and then temper immediately.
Tempering
The tempering temperature on material JIS SKD11 steel may be varied according to the desired hardness. JIS SKD11 steels can be tempered at 204°C (400°F) for achieving Rockwell C hardness of 61 and at 537°C (1000°F) for a Rockwell C hardness of 54.
6. JIS SKD11 Tool Steel Applications
SKD11 is a cornerstone material in precision tooling and high-wear applications:
Cold Work Dies: Blanking dies, forming molds, and precision punches for sheet metal.
Cutting Tools: Shear blades, thread-rolling dies, and woodworking knives.
Plastic Molds: High-hardness inserts for injection molds requiring wear resistance.
Industrial Components: Wear plates, guide rails, and high-stress fixtures.
Why Choose SKD11?
Longevity: 30% longer lifespan than conventional steels in abrasive environments.
Precision: Minimal distortion during heat treatment ensures tight tolerances for complex geometries.
7.Key Advantages of JIS SKD11 Steel
Exceptional Wear Resistance: High chromium carbides (Cr₇C₃) provide superior resistance to abrasion, ideal for high-load tooling.
High Hardness & Stability: Achieves 58-63 HRC post-quenching, with dimensional stability critical for precision molds and dies.
Versatility: Adapts to both cold work and moderate high-temperature applications (up to 500°C), covering diverse industries from automotive to aerospace
8. Delivery condition
For hot forged or hot rolled bar, usually the delivery condition is hot forged or rolled, annealed, rough turned.
For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface.
For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.
Hongxin Mold Tech Co.,Ltd. owns 1 set of Hot Rolling Production Line at size range flats 8-80*210-710mm, rounds 16-50mm Dia.
12 sets of Hydraulic Forging Hammers from Power 560kgs to 6000kgs which could cover flats 40-300*210-710mm.
8 sets of EF+LF+VD
5 sets of ESR
9 sets of Milling Machines
10 sets of Turning Lathes
6 sets of Precision Milling Machines.
CERTIFICATION: GB/T19001-2016/ISO9001:2015
Products' List
Q1:Are you trading company or manufacturer ?
We are the largest tool steel manufacturer in Daye & Huangshi. we can provide a wide range of steel products.
Q2:What is alloy steel round bar export packing?
Usually bundling for large diameter,small diameter bars in bulk or as customer's demand.
Q3.What is your MOQ?
We accept small order,if it is stock,any quantities can be accepted.
Q4.What is your lead time?
Depends actual order,around 20-35 days,or negotiation.
Q5.Can you supply sample?
Yes,we can.Sample fee according to your size.
Q6:What certificates do you have?
ISO, ABS, BV, CCS, Dnv, Lr, Gl, Mill Certificate
Q7: How can I get your quotation as soon as possible?
The email will be checked within 24 hours,meanwhile,the Skype,Wechat and WhatsApp will be online in 24 hours.Please send us your requirement,we will work out a best price soon.