DF2 Steel | AISI O1 | 1.2510 | SKS3 | 9CrWMn Cold Work Tool Steel Material
Chemical Composition of DF2 steel material
| Grade | C | Si | Mn | P | S | Cr | V | W |
| DF2 | 0.95 | 0.035 MAX | 1.1 | 0.030 MAX | 0.030 MAX | 0.6 | 0.1 | 0.6 |
| O1 | 0.85～1.00 | 0.10～0.50 | 1.00～1.40 | 0.030 MAX | 0.030 MAX | 0.40～0.60 | 0.30 MAX | 0.40～0.60 |
| SKS3 | 0.90～1.00 | 0.035 MAX | 0.90～1.20 | 0.030 MAX | 0.030 MAX | 0.50～1.00 | — | 0.50～1.00 |
| 9CrWMn | 0.85～0.95 | 0.40 MAX | 0.90～1.20 | 0.030 MAX | 0.030 MAX | 0.50～0.80 | — | 0.50～0.80 |
| 100MnCrW4/ 1.2510 | 0.90～1.05 | 0.15～0.35 | 1.00～1.20 | 0.030 MAX | 0.030 MAX | 0.50～0.70 | 0.05～0.15 | 0.50～0.70 |
Supply of DF2 steel material
Otai Special Steel are stockholders and suppliers of DF2 alloy tool steel round bar and flat sections which can be sawn cut to your required sizes. DF2 ground steel bar can be supplied, providing a high quality alloy tool steel precision ground alloy tool steel bar to your required tolerances. DF2 alloy tool steel is also available produced as Ground Flat Stock / Gauge Plate, in standard and non-standard sizes.
Contact our experienced sales team who will assist you with your DF2 alloy tool steel enquiry.
Applications of DF2 steel material
DF2 steel is a typical alloy Tool steel, Its Cold work Mechanical Properties is very nice. DF2 steel with high abrasion resistance, micro deformation of cold work die steel, the wind hard tool steel, carbon content as high as 0.95%, the heat treatment hardness can reach 64 HRC. DF2 section steel can be used to manufacture of small cross-section, and the complex shape of Die, as well as various measuring tools. Commonly used in stamping die, stamping die, bending die, drawing die, punch punch and finishing molds Mould.
Forging of DF2 steel material
Preheat slowly to 700°C then increase the temperature more rapidly to 980-1000 °C. Do not forge below 800°C. Then cool the DF2 slowly in furnace after forging.
Annealing of DF2 steel material
DF2 tool steel is delivered condition normal at annealing and machineable. If need re-annealing. Heat the DF2 steel and Soak thoroughly to 740-760°C, then cool in furnace. After annealing, the DF2 delivery hardness is 255HB Max.
Stress Relieving of DF2 steel material
When must tools made from DF2 alloy tool steel are heavily machined or ground , the relief of internal strains is advisable before hardening to minimise the possibility of distortion. Stress relieving is very necessary, stress relieving should be done after rough machining. To stress relieve, heat the component carefully to 670-700°C, allow a good soaking period (two hours per 25mm of ruling section). Cool in the furnace or in air. The tools may then be finish machined before hardening.
Hardening of DF2 steel material
DF2 Delivery condition usually is Annealing, so hardening is necessary. Heat the DF2 tools in a controlled atmosphere furnace, if have not the controlled furnace, pack hardening is recommended strongly. Pre-heat DF2 tool steel to 300~500°C, soak enough time until heat through. Then brought up to 780-820 °C, Quenching in oil quenching.
Tempering of DF2 steel material
Heat the DF2 to 100-400°C, Heat uniformly to the required temperature allowing a soaking time of two hours per 25mm of ruling section. Withdraw from the furnace and allow to cool in air. Different tempering temperature will get different hardness. Commonly used / ℃ tempering temperature: 180 ~ 180
After tempering hardness HRC | 100 ℃ : 64
After tempering hardness HRC | 200 ℃ : 62
After tempering hardness HRC | 300 ℃ : 57
After tempering hardness HRC | 400 ℃ : 53
Welding of DF2 steel material
In general, we do not advise the welding of alloy tool steel but users sometimes prefer to weld in order to avoid the cost of retooling. It should be remembered that this grade is an air hardening steel and that in welding the area of the weld attains a temperature of about 1000°C. Cracking is likely to occur during cooling unless proper precautions are taken. Popular methods of welding are atomic hydrogen and argon arc. We recommend you contact your welding consumables supplier who should provide you full assistance and information on welding alloy tool steels.
Nitriding of DF2 steel material
DF2 alloy tool steel can be nitrided to give a hard surface case. After the nitriding heat treatment, the DF2 is then very resistant to wear and erosion. Nitriding also increases resistance to corrosion.
Final Grinding of DF2 steel material
Grinding the DF2 Steel. Select the correct grade of wheel in consultation with the grinding wheel manufacturer. Ensure the grinding wheel is in good condition by means of a suitable dressing tool. Wet grinding is a preferable option using a copious supply of coolant. If dry grinding is resorted to then use a very soft wheel.
How to Contact Us?
Email: Jack@otaisteel.com
Tel: +86-769- 23190193
Fax: +86-769-88705839
