Stainless Steel 8Cr13MoV
GB 8Cr13MoV
8Cr13MoV is a low-cost martensitic stainless blade steel, essentially a 420HC-class composition with molybdenum and vanadium additions for carbide refinement, sitting between 420 and 440A in hardness and corrosion resistance.
Reference datasheet — 8Cr13MoV is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the Annealed condition
8Cr13MoV tempers and conditions
8Cr13MoV is supplied in 7 conditions, soft to hard. Annealed is the default FabDigit quotes; the values on this page are for it.
Compare all 7 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
AnnealedDefault 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?
8Cr13MoV is a low-cost martensitic stainless blade steel, essentially a 420HC-class composition with molybdenum and vanadium additions for carbide refinement, sitting between 420 and 440A in hardness and corrosion resistance. It is supplied as annealed or cold-rolled strip and blanks and is hardened and tempered to 52–55, 56–58 or 58–60 HRC, with cryogenic and stress-relieved conditions also stocked. Annealed properties are about 430 MPa yield, 740 MPa tensile, 20 % elongation and 200 HB, with service limited to roughly 400 °C. Corrosion resistance is moderate only; where higher hardness and wear life are needed, 9Cr18MoV (440B class) is the next step up. 8Cr13MoV 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). 8Cr13MoV 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).
What is 8Cr13MoV used for?
- kitchen knives
- scissors
- outdoor/EDC knives
- tools
- cutlery
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 properties
Typical room-temperature values for 8Cr13MoV-Annealed; bars are the position among stainless steel grades.
Physical3
8Cr13MoV 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 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 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 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 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'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. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the stainless steel family
Yield strength against density for every stainless steel grade FabDigit runs. 8Cr13MoV is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 8Cr13MoV
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.
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 |
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.
Surface treatments FabDigit runs on stainless steel parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Passivation
Organic Coating
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Stainless Steel 8Cr13MoV in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- Similar grades
- 420HC
How much does 8Cr13MoV cost?
8Cr13MoV is a standard-cost stainless steel ($$), cheaper than about 71% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
8Cr13MoV — frequently asked
What is 8Cr13MoV used for?
8Cr13MoV 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?
8Cr13MoV 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 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 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?
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 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?
8Cr13MoV 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.
How much does 8Cr13MoV cost?
8Cr13MoV is a standard-cost stainless steel ($$), cheaper than about 71% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
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; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.