Steel 1.2080 · hardness band
Steel 1.2080 Q&T 62-64 HRC
Properties of the Q&T 62-64 HRC condition, compared with the other 1.2080 tempers.
Maximum wear resistance for blanking thin sheet, paper/plastic cutting knives and thread rolls; lowest toughness.
What is 1.2080 Q&T 62-64 HRC?
1.2080 Q&T 62-64 HRC is 1.2080 heat treated to Q&T 62-64 HRC — maximum wear resistance for blanking thin sheet, paper/plastic cutting knives and thread rolls; lowest toughness. 1.2080 Q&T 62-64 HRC has a yield strength of 520 MPa (75.4 ksi) and a tensile strength of 2,300 MPa (334 ksi) — stronger than 67% of steel grades. Elongation at break is 0.5% and the elastic modulus is 210 GPa (30.5 Msi). 1.2080 Q&T 62-64 HRC has a density of 7.7 g/cm³ (0.278 lb/in³), lighter than 95% of steel grades. It melts at 1,230°C (2,246 °F). Annealed is the default condition FabDigit quotes; Q&T 62-64 HRC is available on request or by drawing note.
Advantages
- Polishes to a fine finish — 80/100, better than 97% of steel grades
Limitations
- Limited ductility — 0.5%, worse than 100% of steel grades
- Low fracture toughness — 15 MPa·√m (13.7 ksi·√in), worse than 100% of steel grades
- Difficult to machine — 5/100, worse than 100% of steel grades
- Limited service temperature — 150°C (302 °F), worse than 99% of steel grades
- Difficult to weld — 10/100, worse than 99% of steel grades
1.2080 Q&T 62-64 HRC properties
Typical room-temperature values for 1.2080 Q&T 62-64 HRC — 11 properties are specific to this condition; the rest are grade-level values shared by every 1.2080 temper. Each bar shows where the value sits among the steel grades in FabDigit's library — further right is higher.
Physical3
1.2080 Q&T 62-64 HRC has a density of 7.7 g/cm³ (0.278 lb/in³), lighter than 95% of steel grades. It melts at 1,230°C (2,246 °F).
Mechanical14
1.2080 Q&T 62-64 HRC has a yield strength of 520 MPa (75.4 ksi) and a tensile strength of 2,300 MPa (334 ksi) — stronger than 67% of steel grades. Elongation at break is 0.5% and the elastic modulus is 210 GPa (30.5 Msi).
Thermal6
1.2080 Q&T 62-64 HRC is rated for continuous service to 150°C (302 °F). It conducts heat at 20 W/m·K (11.6 BTU/hr·ft·°F), worse than 96% of steel grades. Thermal expansion is 10.5 µm/m·K (5.83 µin/in·°F).
Electrical2
1.2080 Q&T 62-64 HRC has an electrical resistivity of 6.5×10⁻⁷ Ω·m.
Chemical & Environmental3
Corrosion resistance is poor (20/100), better than 87% of steel grades.
Sustainability4
Producing a kilogram of 1.2080 Q&T 62-64 HRC takes about 34 MJ of energy and emits 2.6 kg of CO₂ — more than 82% of steel grades. Typical recycled content is 40%.
Manufacturability8
1.2080 Q&T 62-64 HRC's machinability is not recommended (5/100, worse than 100% of steel grades); weldability not recommended (10/100); formability not recommended (10/100).
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Other 1.2080 tempers and conditions
1.2080 is also supplied in 6 other conditions. The full side-by-side table is on the 1.2080 overview.
- AnnealedDefaultStandard delivery condition of bar, flat and plate; machine and wire-EDM in this state, then harden.520 MPa yield · 230 HB
- Q&T 62-64 HRCMaximum wear resistance for blanking thin sheet, paper/plastic cutting knives and thread rolls; lowest toughness.2,300 MPa tensile
- Q&T 60-62 HRCMost common working hardness for blanking and drawing dies — good wear resistance with slightly better toughness.2,150 MPa tensile
- Q&T 58-60 HRCChoose when chipping is the failure mode (heavier blanking, shear blades, cold-forming punches) and some toughness is worth a little wear life.2,000 MPa tensile
Working with 1.2080 Q&T 62-64 HRC
Is 1.2080 easy to machine?
Machine only in the annealed state with rigid setups, coated carbide and low speeds; the 12-15 % carbide volume abrades tooling badly — hardened parts are finished by grinding, wire EDM or CBN.
Can 1.2080 be welded?
Essentially unweldable structurally; repair only with matching high-alloy electrode at 300-400 °C preheat, immediate temper, and expect hardness/crack sensitivity.
Can 1.2080 be formed, bent or molded?
Hot work between 1050 and 900 °C with slow furnace cooling; no meaningful cold forming — oil quench from 940-970 °C causes more distortion than air-hardening D2, so allow grinding stock.
What surface finishes work on 1.2080?
Takes a high polish when hardened; protect against rust with oiling, black oxide or phosphating, and extend die life with nitriding or TiN/TiCN/CrN PVD below the tempering temperature.
1.2080 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Cforms coarse M7C3 carbides | 1.9 – 2.2 | 2.05 |
| Si | 0.1 – 0.6 | 0.3 |
| Mn | 0.2 – 0.6 | 0.35 |
| P | ≤ 0.03 | — |
| S | ≤ 0.03 | — |
| Cr | 11 – 13 | 12 |
| Niresidual, max | ≤ 0.3 | — |
| Fe | balance | — |
1.2080 Q&T 62-64 HRC — frequently asked
What is 1.2080 Q&T 62-64 HRC used for?
1.2080 Q&T 62-64 HRC is typically used for cold blanking and cutting dies, shear blades, thread rolling dies, cold drawing and forming tools, forming rollers and punches and die inserts. In short: cold-work die tool.
What is the yield strength of 1.2080 Q&T 62-64 HRC?
1.2080 Q&T 62-64 HRC has a typical yield strength of 520 MPa (75.4 ksi) and a tensile strength of 2,300 MPa (334 ksi) — stronger than 67% of steel grades. Strength varies by condition: see the 7 listed tempers.
Is 1.2080 Q&T 62-64 HRC easy to machine?
Not especially — machinability is rated not recommended (5/100, worse than 100% of steel grades). Machine only in the annealed state with rigid setups, coated carbide and low speeds; the 12-15 % carbide volume abrades tooling badly — hardened parts are finished by grinding, wire EDM or CBN.
Can 1.2080 Q&T 62-64 HRC be welded?
Not readily — weldability is rated not recommended (10/100). Essentially unweldable structurally; repair only with matching high-alloy electrode at 300-400 °C preheat, immediate temper, and expect hardness/crack sensitivity.
What surface finishes work on 1.2080 Q&T 62-64 HRC?
Takes a high polish when hardened; protect against rust with oiling, black oxide or phosphating, and extend die life with nitriding or TiN/TiCN/CrN PVD below the tempering temperature.
Can 1.2080 Q&T 62-64 HRC be formed, bent or molded?
Hot work between 1050 and 900 °C with slow furnace cooling; no meaningful cold forming — oil quench from 940-970 °C causes more distortion than air-hardening D2, so allow grinding stock.
What is the maximum service temperature of 1.2080 Q&T 62-64 HRC?
1.2080 Q&T 62-64 HRC is rated for continuous use to about 150°C (302 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Can FabDigit make parts in 1.2080 Q&T 62-64 HRC?
Yes — 1.2080 Q&T 62-64 HRC is available for CNC machining with instant online pricing. Upload a STEP file to get a price and a DFM check.
Sources
- EN ISO 4957 Tool steels (X210Cr12) — ISO/CEN (2018)
- ASTM A681 Standard Specification for Tool Steels Alloy (Type D3) — ASTM (2015)
- GB/T 1299 (Cr12) — SAC (2014)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels, and High-Performance Alloys (Tool Steels) — ASM International (1990)
- Cold-work tool steel 1.2080 / K100-class datasheets — Böhler / Uddeholm / Lucchini (2022)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.