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Steel 5160 vs 9254

Steel · grade comparison

Steel 5160 and 9254 are both steel grades, both spring steel. 9254 is the stronger of the two: yield strength 620 MPa (89.9 ksi) against 275 MPa (39.9 ksi) for 5160, about 125% more; tensile strength follows at 1,030 MPa (149 ksi) vs 725 MPa (105 ksi). In exchange, 5160 is the more ductile: elongation 17% versus 12% for 9254, and 9254 is harder (300 HB vs 197 HB). On the shop floor, 5160 machines more easily (good vs fair) and 9254 sits in a lower cost tier (standard, $$) than 5160 (premium, $$$).

5160Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

9254Choose it when strength drives the design, or when cost is the deciding factor.

5160 vs 9254: properties

51609254

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

205 GPa29.7 Msi
206 GPa29.9 Msi

Shear Modulus

80 GPa11.6 Msi
79 GPa11.5 Msi

Tensile Strength (Ultimate)

725 MPa105 ksi
1,030 MPa149 ksi

Yield Strength (0.2% offset)

275 MPa39.9 ksi
620 MPa89.9 ksi

Elongation at Break

17%
12%

Reduction in Area

31%
30%

Shear Strength

450 MPa65.3 ksi
640 MPa92.8 ksi

Fatigue Strength (Endurance Limit)

330 MPa47.9 ksi
450 MPa65.3 ksi

Charpy V-Notch Impact (RT)

25 J18.4 ft·lbf
15 J11.1 ft·lbf

Hardness, Brinell

197 HB
300 HB

Hardness, Rockwell B

92 HRB
—

Compressive Strength

—
640 MPa92.8 ksi

Fracture Toughness (K_IC)

—
50 MPa·√m45.5 ksi·√in

Hardness, Rockwell C

—
31 HRC

Hardness, Vickers

—
315 HV

Same in both: Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,425°C2,597 °F
1,420°C2,588 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Liquidus Temperature 1,490°C2,714 °F

Thermal

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

Thermal Conductivity

46 W/m·K26.6 BTU/hr·ft·°F
44 W/m·K25.4 BTU/hr·ft·°F

Specific Heat Capacity

490 J/kg·K0.12 BTU/lb·°F
475 J/kg·K0.11 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

12.3 µm/m·K6.8 µin/in·°F
12 µm/m·K6.7 µin/in·°F

Same in both: Latent Heat of Fusion 250 J/g107 BTU/lb · Max Service Temperature (continuous) 250°C482 °F · Min Service Temperature -40°C-40 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

7.8 % IACS
7.5 % IACS

Electrical Resistivity

2.2×10⁻⁷ Ω·m8.66 µΩ·in
2.3×10⁻⁷ Ω·m9.06 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.61 V
-0.6 V

Same in both: Corrosion Resistance 10 / 100

Manufacturability

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

Machinability

55 / 100
38 / 100

Machinability Rating (AISI 1212 = 100 %)

56%
40%

Weldability

25 / 100
20 / 100

Formability (cold)

45 / 100
35 / 100

Castability

40 / 100
—

Brazeability / Solderability

55 / 100
—

Polishability

70 / 100
60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

30 MJ/kg12,898 BTU/lb
31 MJ/kg13,328 BTU/lb

Embodied Carbon (primary production)

2.2 kg CO₂/kg
2.3 kg CO₂/kg

Typical Recycled Content

35%
25%

Same in both: Embodied Water 60 L/kg7.2 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

92 kN·m/kg
131 kN·m/kg

Specific Stiffness (E / density)

26.1 MN·m/kg
26.2 MN·m/kg

Modulus of Resilience

184 kJ/m³
933 kJ/m³

Thermal Diffusivity

12 mm²/s
11.8 mm²/s

Thermal Shock Resistance Index

13
18

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 scale51609254

Manufacturing and finishing

Capability51609254
Default conditionAnnealedHR
Relative cost$$$ Premium$$ Standard
Min. machined wall0.8 mm0.8 mm
Best machined surfaceRa 1.6 µmRa 1.6 µm

Both are offered for CNC machining and Sheet metal. 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.

5160 vs 9254 — frequently asked

Is 9254 stronger than 5160?

Yes. 9254 has a typical yield strength of 620 MPa (89.9 ksi) against 275 MPa (39.9 ksi) for 5160 — about 125% more. Tensile strength is 1,030 MPa (149 ksi) vs 725 MPa (105 ksi).

Which is cheaper, 5160 or 9254?

9254 is the lower-cost material: it sits in the standard tier ($$) while 5160 is premium ($$$). 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, 5160 or 9254?

5160. Its machinability rates good (55/100) against fair (38/100) for 9254; for welding the order is 5160 first (poor, 25/100) then 9254 (poor, 20/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 5160 and 9254 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.