Stainless Steel 8Cr13MoV Annealed
Temper · default condition
GB 8Cr13MoV
Standard mill delivery condition for blanking, stamping and machining blade blanks before hardening.
Values for the Annealed condition
Other 8Cr13MoV tempers and conditions
8Cr13MoV is listed in 7 conditions; see the grade overview at 8Cr13MoV.
Compare all 7 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
AnnealedDefaultThis page soft-annealed cold-rolled strip / bar (as supplied) | Standard mill delivery condition for blanking, stamping and machining blade blanks before hardening. | 430 | 740 | 20 | 200 HB | — |
Stress relieved | Intermediate condition to remove cold-work stresses in strip or laser-cut blanks before final hardening. | 500 | 800 | 16 | 20 HRC | 3 % IACS |
Cold rolled | Pick for thin strip needing extra flatness/stiffness before hardening; harder to blank, must be stress-relieved or hardened. | 750 | 950 | 8 | 30 HRC | 3 % IACS |
hardened and tempered soft (toughness biased) | Use for machetes, choppers, scissors and tools where chipping resistance matters more than edge holding. | 1,450 | 1,750 | 4 | 54 HRC | — |
standard cutlery hardening (≈1050 °C austenitize, oil/air quench, 180–200 °C temper) | The mainstream condition for kitchen and folding knives — best balance of edge retention, toughness and easy resharpening. | 1,650 | 1,950 | 2.5 | 57 HRC | — |
high-hardness temper (wear biased) | Choose for razor/slicing edges and thin kitchen blades where edge retention outranks impact toughness. | 1,800 | 2,100 | 1.5 | 59 HRC | — |
Hardened + sub-zero + temper | Specify when maximum hardness, dimensional stability and consistent edge stability are needed from this grade. | 1,850 | 2,150 | 1.2 | 60 HRC | — |
What is 8Cr13MoV Annealed?
8Cr13MoV Annealed is 8Cr13MoV in the Annealed temper — standard mill delivery condition for blanking, stamping and machining blade blanks before hardening. 8Cr13MoV Annealed has a yield strength of 430 MPa (62.4 ksi) and a tensile strength of 740 MPa (107 ksi) — stronger than 67% of stainless steel grades. Elongation at break is 20% and the elastic modulus is 200 GPa (29 Msi). 8Cr13MoV Annealed has a density of 7.7 g/cm³ (0.278 lb/in³), lighter than 83% of stainless steel grades. It melts at 1,420°C (2,588 °F).
Advantages
- High electrical conductivity — 3 % IACS, better than 95% of stainless steel grades
- Conducts heat well — 24.5 W/m·K (14.2 BTU/hr·ft·°F), better than 85% of stainless steel grades
- Easy to machine — 45/100, better than 84% of stainless steel grades
- Low embodied carbon — 3.6 kg CO₂/kg, better than 83% of stainless steel grades
Limitations
- Difficult to weld — 20/100, worse than 95% of stainless steel grades
- Low fracture toughness — 55 MPa·√m (50.1 ksi·√in), worse than 91% of stainless steel grades
- Needs corrosion protection — 44/100, worse than 88% of stainless steel grades
- Limited ductility — 20%, worse than 79% of stainless steel grades
- Limited service temperature — 400°C (752 °F), worse than 78% of stainless steel grades
8Cr13MoV Annealed properties
Typical room-temperature values for 8Cr13MoV Annealed; 13 are specific to this condition. Other listed values are 8Cr13MoV reference data and may not represent this condition. Bars are the position among stainless steel grades.
Physical3
8Cr13MoV Annealed has a density of 7.7 g/cm³ (0.278 lb/in³), lighter than 83% of stainless steel grades. It melts at 1,420°C (2,588 °F).
Mechanical16
8Cr13MoV Annealed has a yield strength of 430 MPa (62.4 ksi) and a tensile strength of 740 MPa (107 ksi) — stronger than 67% of stainless steel grades. Elongation at break is 20% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
8Cr13MoV Annealed is rated for continuous service to 400°C (752 °F). It conducts heat at 24.5 W/m·K (14.2 BTU/hr·ft·°F), better than 85% of stainless steel grades. Thermal expansion is 10.4 µm/m·K (5.78 µin/in·°F).
Electrical3
8Cr13MoV Annealed conducts electricity at 3 % IACS, better than 95% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is fair (44/100), worse than 88% of stainless steel grades.
Sustainability4
Producing a kilogram of 8Cr13MoV Annealed takes about 50 MJ of energy and emits 3.6 kg of CO₂ — less than 80% of stainless steel grades. Typical recycled content is 35%.
Manufacturability6
8Cr13MoV Annealed's machinability is fair (45/100, better than 84% of stainless steel grades); weldability poor (20/100); formability fair (45/100).
Common Calculations5
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 8Cr13MoV Annealed
Is 8Cr13MoV easy to machine?
Machine, drill and grind in the annealed state with sharp carbide or cobalt HSS at moderate speed and generous coolant; after hardening only grinding/EDM/waterjet is practical.
Can 8Cr13MoV be welded?
Effectively non-weldable for structural joints — 0.8 % C martensite cracks; if unavoidable, preheat 250–300 °C, use 309L/410NiMo filler and temper immediately after.
Can 8Cr13MoV be formed, bent or molded?
Blank, stamp and bend only in the soft-annealed condition with generous radii (≥2 t); harden at 1030–1070 °C, quench in oil/plate/gas, temper 180–220 °C for cutlery hardness.
What surface finishes work on 8Cr13MoV?
Takes a fine satin or mirror polish after hardening; passivate or electropolish after grinding to restore the chromium film, and PVD/black-oxide coatings apply well below the temper temperature.
8Cr13MoV 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 |
|---|---|---|
| Csome mills quote 0.75–0.85 | 0.7 – 0.85 | 0.78 |
| Cr | 12.5 – 14.5 | 13.5 |
| Mo | 0.1 – 0.3 | 0.18 |
| Vgrain refinement, fine carbides | 0.1 – 0.3 | 0.15 |
| Mn | ≤ 1 | 0.45 |
| Si | ≤ 1 | 0.35 |
| Niresidual | ≤ 0.5 | 0.15 |
| P | ≤ 0.04 | 0.02 |
| S | ≤ 0.03 | 0.01 |
| Fe | balance | — |
8Cr13MoV Annealed — frequently asked
What is 8Cr13MoV Annealed used for?
8Cr13MoV Annealed is typically used for kitchen knives, scissors, outdoor/EDC knives, tools and cutlery. In short: low-cost cutlery stainless; between 420 and 440A; hardens to 58–60 HRC.
What is the yield strength of 8Cr13MoV Annealed?
8Cr13MoV Annealed has a typical yield strength of 430 MPa (62.4 ksi) and a tensile strength of 740 MPa (107 ksi) — stronger than 67% of stainless steel grades. Strength varies by condition: see the 7 listed tempers.
Is 8Cr13MoV Annealed easy to machine?
Reasonably — machinability is rated fair (45/100, better than 84% of stainless steel grades). Machine, drill and grind in the annealed state with sharp carbide or cobalt HSS at moderate speed and generous coolant; after hardening only grinding/EDM/waterjet is practical.
Can 8Cr13MoV Annealed be welded?
Not readily — weldability is rated poor (20/100). Effectively non-weldable for structural joints — 0.8 % C martensite cracks; if unavoidable, preheat 250–300 °C, use 309L/410NiMo filler and temper immediately after.
What surface finishes work on 8Cr13MoV Annealed?
Takes a fine satin or mirror polish after hardening; passivate or electropolish after grinding to restore the chromium film, and PVD/black-oxide coatings apply well below the temper temperature.
Can 8Cr13MoV Annealed be formed, bent or molded?
Blank, stamp and bend only in the soft-annealed condition with generous radii (≥2 t); harden at 1030–1070 °C, quench in oil/plate/gas, temper 180–220 °C for cutlery hardness.
What is the maximum service temperature of 8Cr13MoV Annealed?
8Cr13MoV Annealed is rated for continuous use to about 400°C (752 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 8Cr13MoV Annealed and 8Cr13MoV QT-CRYO?
Annealed is the default condition — standard mill delivery condition for blanking, stamping and machining blade blanks before hardening. QT-CRYO: specify when maximum hardness, dimensional stability and consistent edge stability are needed from this grade. Yield strength is 430 MPa in Annealed versus 1,850 MPa in QT-CRYO.
Sources
- GB/T 1220 / GB/T 4237 — Stainless steel bars and hot-rolled strip (2016)
- 8Cr13MoV cutlery strip technical data (Chinese stainless strip mills) — Ahonest Changjiang / Sinosteel-type suppliers (2022)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels and High-Performance Alloys (420/440 martensitic stainless) — ASM International (1990)
- ASTM A276 / A959 — Stainless Steel Bars and Shapes — ASTM International (2017)
- Martensitic stainless cutlery steel comparative data (hardness/toughness compilations) — FabDigit internal compilation (2025)
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.