ABC III / DIN 1.3333 / AISI ABC III Steel Grade
Toolman Special Steels is proud to produce and offer ABC III(1.3333) - a medium alloyed high speed steel with good wear resistance. This economical high-speed steel is ideal for medium lifetimes, offering high toughness properties. It is well-suited for tools that are exposed to impacts and bumps.
Steel Properties
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Machinability : Good - facilitating ease of machining processes.
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Wear Resistance : High - providing durability in demanding conditions.
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Toughness : Moderate - ensuring a balance between strength and resistance to fracture.
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Hot Hardness: Retains hardness at elevated temperatures.
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Grindability : Easy to grind - improving finish and dimensional accuracy.
Chemical Composition
| Element | Value |
|---|---|
| C | 1.00 |
| Cr | 4.00 |
| Mo | 2.70 |
| W | 2.90 |
| Co | - |
| V | 2.40 |
Mechanical Properties
| Property | Value |
|---|---|
| Hardness (HBW) | 255 max (Annealed) |
| Quenching and Tempering Hardness (HRC) | 62 min |
Physical Properties
| Property | Value |
|---|---|
| Density (g/cm³) | 8.00 |
Modulus of Elasticity
| Temperature (°C) | kN/mm² |
|---|---|
| 20 | 210 |
Thermal Properties
Thermal Conductivity
| Temperature (℃) | Thermal Conductivity (W/m•K) |
|---|---|
| 20 | 20 |
HEAT TREATMENT AND PROCESSES
Heat treatment
| Process | Details |
|---|---|
| Soft Annealing | Heat to 780-820°C, cool slowly in furnace. Maximum Brinell hardness: 255. |
| Stress Relieving | Heat to 600-650°C, hold for 1 hour, followed by air cooling. Reduces distortion during heat treatment. |
| Hardening | Heat to 1170-1220°C, followed by oil or air quenching, or warm bath (550-220°C). |
| Tempering | Temper at 520-550°C, at least twice for at least 62 HRC. |
Applications
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In the metal plating sector
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In the metal plating sector
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Long saw blades
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Blades for wood machining are manufactured from this steel as a matter of preference
Quality Assurance
Our ABC III 1.3333 steel undergoes rigorous testing and quality control to meet international standards, ensuring consistent performance and reliability. Certificates and test reports are available upon request. Feel free to reach out to us for more information on our ABC III 1.3333 steel products or to discuss your specific requirements. We're dedicated to providing top-quality steel solutions that meet your needs and exceed your expectations.
Manufacturing Range
| ROUNDS | SQUARES | ||
|---|---|---|---|
| SIZE (MM) | CONDITION | SIZE (MM) | CONDITION |
| 6.00 - 14.00 | CG | 7.2, 8.8, 10.5, 11 | HRA |
| 15.00 - 50.00 | HRAP | 13.5, 14, 17.5, 21 | HRA |
| 52.00 - 405.00 | FAT | 27, 32, 40 | HRA |
| 52.00 - 305.00 | FA |
Flats
| THICKNESS | WIDTH | CONDITION |
|---|---|---|
| 5.00 - 32.00 | 21.00 - 105.00 | HRA |
| 32.00 - 105.00 | 40.00 - 205.00 | FA |
Frequently Asked Questions
ABC III / DIN 1.3333 is a medium-alloy high speed steel with good wear resistance. It is positioned as an economical HSS for medium service life while providing high toughness characteristics, particularly for tools exposed to impacts and bumps.
Good machinability, high wear resistance, moderate toughness, hot hardness and easy grindability are among the principal properties of ABC III. The combination supports machining, finishing and tool production where wear resistance and impact loading both need to be considered.
ABC III has applications in the metal-plating sector, long saw blades and blades used for wood machining. Its product description specifically positions the grade for tools exposed to impact and bump loading.
A maximum annealed hardness of 255 HBW and a minimum quenching-and-tempering hardness of 62 HRC. Its heat-treatment guidance specifies tempering at 520–550°C at least twice to achieve at least 62 HRC.
Soft annealing at 780–820°C, stress relieving at 600–650°C, and hardening at 1170–1220°C, followed by oil or air quenching or a warm bath. Tempering is specified at 520–550°C, at least twice, for a minimum hardness of 62 HRC.
Chemical composition includes ABC III with 1.00% carbon, 4.00% chromium, 2.70% molybdenum, 2.90% tungsten and 2.40% vanadium.
Toolman publishes rounds from 6–405 mm, listed HRA square sizes from 7.2–40 mm, and flats ranging from 5–105 mm thickness and 21–205 mm width, depending on manufacturing condition. The company also states that certificates and test reports are available upon request.
