Steel A11 vs M35
Steel · grade comparison
Steel A11 and M35 are both steel grades, both tool steel. Both yield at about 600 MPa — strength does not separate them. M35 is the more ductile: elongation 10% versus 8% for A11, and A11 is harder (269 HB vs 248 HB). A11 is lighter (7.41 g/cm³ vs 8.1 g/cm³ for M35) and M35 conducts electricity better (3.1 % IACS vs 2.7 % IACS). On the shop floor, M35 machines more easily (30 vs 20 out of 100) and M35 sits in a lower cost tier (premium, $$$) than A11 (specialty, $$$$$).
A11Choose it when weight is the constraint.
M35Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.
A11 vs M35: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all steel grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all steel grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Elongation at Break
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Rockwell C
Hardness, Vickers
Bulk Modulus
Same in both: Poisson's Ratio 0.29 · Tensile Strength (Ultimate) 900 MPa131 ksi · Yield Strength (0.2% offset) 600 MPa87 ksi · Reduction in Area 20%
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Same in both: Min Service Temperature -50°C-58 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Galvanic Potential (seawater, vs SCE)
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Polishability
Brazeability / Solderability
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Typical Recycled Content
Embodied Water
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
Strength versus weight
Yield strength against density for every steel grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | A11 | M35 |
|---|---|---|
| Default condition | Annealed | Annealed |
| Relative cost | $$$$$ Specialty | $$$ Premium |
| Min. machined wall | 0.8 mm | 0.8 mm |
| Best machined surface | Ra 1.6 µm | Ra 1.6 µm |
Both are offered for CNC machining. Both take the same 38 finishes: AlCrN, AlTiN, Black Oxide, CVD Al2O3, CVD TiCN, CVD TiN, Cerakote, Chrome Plating, Copper Plating, CrN, DLC, E-Coating and 26 more.
A11 vs M35 — frequently asked
What is the difference between A11 and M35?
Steel A11 and M35 are both steel grades, both tool steel. Both yield at about 600 MPa — strength does not separate them. M35 is the more ductile: elongation 10% versus 8% for A11, and A11 is harder (269 HB vs 248 HB).
Which is cheaper, A11 or M35?
M35 is the lower-cost material: it sits in the premium tier ($$$) while A11 is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
Which is easier to machine, A11 or M35?
M35, by a small margin. Both rate poor for machinability — 30/100 against 20/100 for A11; for welding the order is M35 first (poor, 20/100) then A11 (poor, 15/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in A11 and M35 side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.
Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.