Enquiry
1.2510, 100MnCrW4, O1, SKS3, DF2, DF3
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 |
- |
| Relevant Steel Specification of AISI O1 Tool Steel | |||
|---|---|---|---|
| Country | USA | German | Japan |
| Standard | ASTM A681 | DIN EN ISO 4957 | JIS G4404 |
| Grades | O1 | 1.2510/100MnCrW4 | SKS3 |
| ASTM O1 Tool Steel Mechanical Properties | ||
|---|---|---|
| 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 psi |
Properties :
General purpose oil hardening medium alloyed cold work tool steel with minimum size change, high impact strength and hardenability, good edge holding, abrasion resistance and machinability properties, dimensionally stable during heat treatment, high surface hardness and sufficent toughness after hardening and tempering.
Applications :
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 | |
|---|---|
| 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 | |
