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Steel 38KhMYuA vs 41CrAlMo7-10

Steel · grade comparison

Steel 38KhMYuA and 41CrAlMo7-10 are both steel grades. 38KhMYuA is the stronger of the two: yield strength 860 MPa (125 ksi) against 800 MPa (116 ksi) for 41CrAlMo7-10, about 8% more. 38KhMYuA is the more ductile: elongation 16% versus 14% for 41CrAlMo7-10, and 41CrAlMo7-10 is harder (320 HB vs 300 HB). On the shop floor, 41CrAlMo7-10 sits in a lower cost tier (budget, $) than 38KhMYuA (standard, $$).

38KhMYuAChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

41CrAlMo7-10Choose it when cost is the deciding factor.

38KhMYuA vs 41CrAlMo7-10: properties

38KhMYuA41CrAlMo7-10

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Shear Modulus

80 GPa11.6 Msi
81 GPa11.7 Msi

Tensile Strength (Ultimate)

1,000 MPa145 ksi
1,050 MPa152 ksi

Yield Strength (0.2% offset)

860 MPa125 ksi
800 MPa116 ksi

Elongation at Break

16%
14%

Reduction in Area

55%
50%

Compressive Strength

900 MPa131 ksi
820 MPa119 ksi

Shear Strength

620 MPa89.9 ksi
630 MPa91.4 ksi

Charpy V-Notch Impact (RT)

70 J51.6 ft·lbf
45 J33.2 ft·lbf

Hardness, Brinell

300 HB
320 HB

Hardness, Rockwell C

30 HRC
34 HRC

Hardness, Vickers

315 HV
335 HV

Same in both: Elastic (Young's) Modulus 210 GPa30.5 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Fatigue Strength (Endurance Limit) 480 MPa69.6 ksi · Fracture Toughness (K_IC) 70 MPa·√m63.7 ksi·√in

Physical

Density and transition temperatures.

Density

7.7 g/cm³0.28 lb/in³
7.75 g/cm³0.28 lb/in³

Same in both: Melting Point (Solidus) 1,420°C2,588 °F · Liquidus Temperature 1,490°C2,714 °F

Thermal

How each material carries heat and how hot it can run.

Specific Heat Capacity

470 J/kg·K0.11 BTU/lb·°F
460 J/kg·K0.11 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

11.8 µm/m·K6.6 µin/in·°F
11.5 µm/m·K6.4 µin/in·°F

Same in both: Thermal Conductivity 34 W/m·K19.6 BTU/hr·ft·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Max Service Temperature (continuous) 500°C932 °F · Min Service Temperature -40°C-40 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

6.6 % IACS
—

Electrical Resistivity

2.6×10⁻⁷ Ω·m10.2 µΩ·in
2.5×10⁻⁷ Ω·m9.84 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

13 / 100
15 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.6 V

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

42 / 100
40 / 100

Weldability

18 / 100
15 / 100

Formability (cold)

20 / 100
15 / 100

Brazeability / Solderability

35 / 100
30 / 100

Castability

—
20 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 45% · Polishability 65 / 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)

130 kN·m/kg
135 kN·m/kg

Specific Stiffness (E / density)

27.3 MN·m/kg
27.1 MN·m/kg

Modulus of Resilience

1,761 kJ/m³
1,524 kJ/m³

Thermal Diffusivity

9.4 mm²/s
9.5 mm²/s

Thermal Shock Resistance Index

14
15

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.

2005001,0002,0007.588.5Density (g/cm³)Yield strength (MPa) — log scale41CrAlMo7-1038KhMYuA

Manufacturing and finishing

Capability38KhMYuA41CrAlMo7-10
Default condition——
Relative cost$$ Standard$ Budget
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.

38KhMYuA vs 41CrAlMo7-10 — frequently asked

Is 38KhMYuA stronger than 41CrAlMo7-10?

Yes. 38KhMYuA has a typical yield strength of 860 MPa (125 ksi) against 800 MPa (116 ksi) for 41CrAlMo7-10 — about 8% more. Tensile strength is 1,000 MPa (145 ksi) vs 1,050 MPa (152 ksi).

Which is cheaper, 38KhMYuA or 41CrAlMo7-10?

41CrAlMo7-10 is the lower-cost material: it sits in the budget tier ($) while 38KhMYuA is standard ($$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

When should I choose 38KhMYuA over 41CrAlMo7-10?

Pick 38KhMYuA when strength drives the design, or when the part is bent, formed or impact-loaded. Pick 41CrAlMo7-10 when cost is the deciding factor.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 38KhMYuA and 41CrAlMo7-10 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.