Steel 41CrAlMo7-10 vs Nitralloy 135
Steel · grade comparison
Steel 41CrAlMo7-10 and Nitralloy 135 are both steel grades. 41CrAlMo7-10 is the stronger of the two: tensile strength 1,050 MPa (152 ksi) against 965 MPa (140 ksi) for Nitralloy 135, about 9% more. In exchange, Nitralloy 135 is the more ductile: elongation 17% versus 14% for 41CrAlMo7-10, and 41CrAlMo7-10 is harder (320 HB vs 302 HB). On the shop floor, 41CrAlMo7-10 sits in a lower cost tier (budget, $) than Nitralloy 135 (standard, $$).
41CrAlMo7-10Choose it when strength drives the design, or when cost is the deciding factor.
Nitralloy 135Choose it when the part is bent, formed or impact-loaded.
41CrAlMo7-10 vs Nitralloy 135: 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.
Shear Modulus
Bulk Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 210 GPa30.5 Msi · Poisson's Ratio 0.29 · Reduction in Area 50% · Fracture Toughness (K_IC) 70 MPa·√m63.7 ksi·√in
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Same in both: Liquidus Temperature 1,490°C2,714 °F
Thermal
How each material carries heat and how hot it can run.
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Same in both: Thermal Conductivity 34 W/m·K19.6 BTU/hr·ft·°F · Max Service Temperature (continuous) 500°C932 °F · Min Service Temperature -40°C-40 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Electrical Conductivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.6 V · Corrosion Resistance 15 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Polishability
Same in both: Weldability 15 / 100 · Formability (cold) 15 / 100 · Castability 20 / 100 · Brazeability / Solderability 30 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 32 MJ/kg13,758 BTU/lb · Embodied Carbon (primary production) 2.3 kg CO₂/kg · Embodied Water 60 L/kg7.2 gal/lb · Typical Recycled Content 30%
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 | 41CrAlMo7-10 | Nitralloy 135 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $ Budget | $$ Standard |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 9 finishes: Copper Plating, Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Manganese Phosphate, Plasma Spray, Silver Plating, Zinc Phosphate.
41CrAlMo7-10 vs Nitralloy 135 — frequently asked
Is 41CrAlMo7-10 stronger than Nitralloy 135?
Yes. 41CrAlMo7-10 has a typical tensile strength of 1,050 MPa (152 ksi) against 965 MPa (140 ksi) for Nitralloy 135 — about 9% more.
Which is cheaper, 41CrAlMo7-10 or Nitralloy 135?
41CrAlMo7-10 is the lower-cost material: it sits in the budget tier ($) while Nitralloy 135 is standard ($$). 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, 41CrAlMo7-10 or Nitralloy 135?
41CrAlMo7-10, by a small margin. Both rate fair for machinability — 40/100 against 35/100 for Nitralloy 135.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 41CrAlMo7-10 and Nitralloy 135 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.