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Steel 60Si2Mn vs 60Si2MnA

Steel · grade comparison

Steel 60Si2Mn and 60Si2MnA are both steel grades, both spring steel. 60Si2MnA is the stronger of the two: yield strength 550 MPa (79.8 ksi) against 480 MPa (69.6 ksi) for 60Si2Mn, about 15% more; tensile strength follows at 900 MPa (131 ksi) vs 800 MPa (116 ksi).

60Si2MnAChoose it when strength drives the design.

60Si2Mn vs 60Si2MnA: properties

60Si2Mn60Si2MnA

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Bulk Modulus

165 GPa23.9 Msi
160 GPa23.2 Msi

Tensile Strength (Ultimate)

800 MPa116 ksi
900 MPa131 ksi

Yield Strength (0.2% offset)

480 MPa69.6 ksi
550 MPa79.8 ksi

Elongation at Break

15%
14%

Reduction in Area

35%
40%

Shear Strength

500 MPa72.5 ksi
560 MPa81.2 ksi

Fatigue Strength (Endurance Limit)

360 MPa52.2 ksi
420 MPa60.9 ksi

Hardness, Brinell

255 HB
260 HB

Hardness, Rockwell B

—
100 HRB

Hardness, Vickers

—
270 HV

Same in both: Elastic (Young's) Modulus 206 GPa29.9 Msi · Shear Modulus 79 GPa11.5 Msi · Poisson's Ratio 0.29 · Charpy V-Notch Impact (RT) 30 J22.1 ft·lbf

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

1,420°C2,588 °F
1,450°C2,642 °F

Liquidus Temperature

1,480°C2,696 °F
1,495°C2,723 °F

Thermal

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

Thermal Conductivity

40 W/m·K23.1 BTU/hr·ft·°F
37 W/m·K21.4 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

12 µm/m·K6.7 µin/in·°F
11.9 µm/m·K6.6 µin/in·°F

Same in both: Specific Heat Capacity 480 J/kg·K0.11 BTU/lb·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -40°C-40 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

3×10⁻⁷ Ω·m11.8 µΩ·in
2.9×10⁻⁷ Ω·m11.4 µΩ·in

Electrical Conductivity

—
6 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.6 V
—

Same in both: Corrosion Resistance 12 / 100

Manufacturability

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

Weldability

20 / 100
25 / 100

Formability (cold)

40 / 100
45 / 100

Brazeability / Solderability

35 / 100
45 / 100

Same in both: Machinability 45 / 100 · Machinability Rating (AISI 1212 = 100 %) 55% · Polishability 60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

30 MJ/kg12,898 BTU/lb
26 MJ/kg11,178 BTU/lb

Embodied Carbon (primary production)

2.2 kg CO₂/kg
2 kg CO₂/kg

Embodied Water

50 L/kg6 gal/lb
55 L/kg6.6 gal/lb

Typical Recycled Content

35%
30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

103 kN·m/kg
115 kN·m/kg

Specific Stiffness (E / density)

26.6 MN·m/kg
26.2 MN·m/kg

Modulus of Resilience

559 kJ/m³
734 kJ/m³

Thermal Diffusivity

10.8 mm²/s
9.8 mm²/s

Thermal Shock Resistance Index

13
14

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 scale60Si2MnA60Si2Mn

Manufacturing and finishing

Capability60Si2Mn60Si2MnA
Default conditionAnnealedAnnealed
Relative cost$$ Standard$$ 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.

60Si2Mn vs 60Si2MnA — frequently asked

Is 60Si2MnA stronger than 60Si2Mn?

Yes. 60Si2MnA has a typical yield strength of 550 MPa (79.8 ksi) against 480 MPa (69.6 ksi) for 60Si2Mn — about 15% more. Tensile strength is 900 MPa (131 ksi) vs 800 MPa (116 ksi).

Which is cheaper, 60Si2Mn or 60Si2MnA?

Both sit in the same relative cost tier ($$, standard); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which welds better, 60Si2Mn or 60Si2MnA?

60Si2MnA. Its weldability rates poor (25/100) against poor (20/100) for 60Si2Mn.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 60Si2Mn and 60Si2MnA 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.