1.2510 (DF2 Steel) with chromium-manganese content possessed good machinability, mechanical wear resistance and edge holding quality.
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E Steel supply 2510 (SKS3, O1 Tool Steel) Round Bars/ Rods/ Shafts , DF2 Plates.
1.2510 Steel Suppliers - O1 Steel, SKS3, 100MnCrW4, DF2, DF3 Tool Steel
2510 with chromium-manganese content possessed good machinability, mechanical wear resistance and edge holding quality. Vanadium-Wolfram content reduces high working temperature wear and retention of temper temperature.| DIN | AISI | JIS | Chemical Composition | |||||||||||
| C | Si | Mn | P | S | Co | Cr | Mo | Ni | V | W | Cu | |||
| 1.2510 | O1 | SKS3 | 0.90 to 1.05 | 0.15 to 0.35 | 1.00 to 1.20 | < 0.035 | < 0.035 | – | 0.15 to 0.35 | – | – | 0.05 to 0.15 | 0.50 to 0.70 | – |
AISI O1 Steel is equivalent to
| Country | USA | German | Japan |
| Standard | ASTM A681 | DIN EN ISO 4957 | JIS G4404 |
| Grades | O1 | 1.2510/100MnCrW4 | SKS3 |
Mechanical Properties of SKS3 Tool Steel
| Properties | Metric | Imperial |
| Hardness, Brinell (soft annealed -delivery condition) | 190 | 190 |
| Hardness, Rockwell C (tempering temp 300-1200°F) | 34.0-64.0 | 34.0-64.0 |
| Elastic modulus (hardened to 62 HRC) | 193 GPa | 28000 ksi |
| Elastic modulus (@399°C/750°F, hardened to 62 HRC ) | 172 GPa | 25000 ksi |
| Elastic modulus (@191°C/375°F, hardened to 62 HRC) | 186 GPa | 27000 ksi |
| Compressive yield strength (0.2%, hardened to 50 HRC) | 1350 MPa | 196000 psi |
| Compressive yield strength (0.2%, hardened to 55 HRC) | 1800 MPa | 261000 psi |
| Compressive yield strength (0.2%, hardened to 60 HRC) | 2150 MPa | 312000 psi |
| Compressive yield strength (0.2%, hardened to 62 HRC) | 2200 MPa | 319000 p |
Applications of DF2, 1.2510 Tool Steel
Tool Steel SKS3, AISI O1 can be used for :
Cutting, blanking, punching and stamping tools and dies up to 6 mm sheet thickness, thread cutting tools, chasers, cold forming tools, arbors, drill bushings, collets, drawing punches, machine knives for the wood, paper and metal working industries, woodworking tools, cold trimming dies, shaping wheels, measuring tools and gauges, milling cutters, drills, reamers, taps, broaches, calipers, profile rollers, coining tools, industrial blades, moulds for the plastics industry, knurling tools, medium run blanking dies, cold working manrdrels, master engraving rolls and taps, guide rails, plug gages.
Heat treatment of 1.2510 Steel
Stress relieving Temperature : Approx. 650 °C in the annealed state
Duration : 1 hour per 50 mm wall thickness
Soft annealing Temperature : 750 °C
Duration : 1 hour per 25 mm wall thickness
Hardening Temperature : 830 °C
Duration : 1 minute per mm wall thickness
Quenching hardness Max. 64 HRC in oil, hot bath or vacuum
Tempering Temperature : See tempering curve
Duration : 1 hour per 25 mm wall thickness
Cooling : Air
Working hardness 58–62 HRC
