1.2767 Cold Worked Plastic Mold Steel
1.2767 steel is typically used for heavy duty high toughness stamping dies, injection molds that require high stress, heavy duty cold working tools，cutting tools, and plastic molds that require high hardness and toughness, etc.
- HONGXIN
- DAYE
- 30DAYS
- 8000TONS/MONTH
- Information
1.2767 Cold Worked Plastic Mold Steel
1. 1.2767 Cold Worked Plastic Mold Steel Properties
1.2767 is a high-nickel alloy tool steel renowned for its exceptional toughness, wear resistance, and thermal stability. With a composition of 0.40-0.50% carbon, 3.80-4.30% nickel, and 1.20-1.50% chromium, it achieves a hardness of 52-54 HRC after heat treatment. Its uniform microstructure and deep hardenability make it ideal for large-section tools like plastic injection molds, forging dies, and aerospace components.
1.2767 steel has the following properties: good abrasion resistance, high toughness, high hardness, high compressive strength and dimensional stability and has good corrosion resistance effect, polishing and cutting performance is also very excellent, it is very easy to achieve a mirror effect. It has excellent hardenability and can be hardened by air cooling, and has excellent machining performance.
2. 1.2767 Cold Worked Plastic Mold Steel Overview
| Round | Dia 12-500mm | ||
| Plate/Flat/Block | Thickness 8mm~300mm | ||
| Width 210mm-710mm | |||
| Process | EAF/ESR+LF+VD+Forged/Rolled+Heat treatment(optional) | ||
| Heat treatment | 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 | ||
3. 1.2767 Cold Worked Plastic Mold Steel Standards & Chemical Composition(%)
| Country | Europe | USA | China | |
| Standard | DIN | ISO | ASTM | GB/T |
| Grade | 1.2767 | 45NiCrMo16 | 6F7 | 4CrNi4Mo |
| Grade | C | Si | Mn | P | S | Cr | Mo | Ni |
| 4CrNi4Mo | 0.40-0.50 | 0.10-0.40 | 0.20-0.50 | ≤0.03 | ≤0.03 | 1.20-1.50 | 0.15-0.35 | 3.80-4.20 |
| 1.2767 | 0.40-0.50 | 0.10-0.40 | 0.20-0.50 | ≤0.03 | ≤0.03 | 1.20-1.50 | 0.15-0.35 | 3.80-4.30 |
4. 1.2767 Cold Worked Plastic Mold Steel Physical & Mechanical Properties
Physical Properties
| Property | Metric Units |
|---|---|
| Density | 7.85 g/cm³ |
| Melting Point | ~1420°C |
| Thermal Expansion (20-100°C) | 11.8×10⁻⁶/°C |
Mechanical Properties
| Property | Metric Units |
|---|---|
| Hardness (Quenched & Tempered) | 52-54 HRC |
| Tensile Strength | 1900-2100 MPa |
| Impact Toughness (Charpy V-notch) | 23-33 J |
Thermal Fatigue Resistance: Outperforms conventional grades in high-temperature cycles
5. 1.2767 Cold Worked Plastic Mold Steel Heat Treatment
Annealing: 660-680°C for 6-8 hours, hardness ≤260 HB.
Quenching: Oil or air cool from 830-860°C.
Tempering: 100-600°C for stress relief and hardness adjustment (52-54 HRC). Double tempering recommended for dimensional stability
6. 1.2767 Cold Worked Plastic Mold Steel Applications
1.2767 excels in high-stress and precision tooling:
Plastic Molds: High-gloss injection molds and large-scale plastic components.
Hot/Cold Work Dies: Forging dies, extrusion tools, and heavy-duty stamping dies.
Cutting Tools: Shear blades, punches, and precision machining tools.
Aerospace & Automotive: High-stress components like transmission shafts and engine parts.
Why Choose 1.2767?
30% longer lifespan in cyclic thermal loads compared to H13.
Superior surface polishability for high-gloss applications.
Key Advantages of 1.2767 Plastic Mold Steel
Exceptional Toughness: High nickel (Ni) ensures uniform hardness absorption and resistance to cracking under impact.
Versatile Heat Treatment: Adaptabl to air or oil quenching with minimal distortion, ideal for large-section tools.
Economic Efficiency: Combines durability with lower machining costs, suitable for high-volume production.
7. Delivery Condition
For hot forged bar, usually the delivery condition is hot forged, annealed, rough turned/Black surface.
For hot rolled bar, usually the delivery condition is hot rolled, annealed, Black 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 biggest tool steel factory at 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 and fax 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.
