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Steel 25L vs A352 LCC

Steel · grade comparison

Steel 25L and A352 LCC are both steel grades. A352 LCC is the stronger of the two: yield strength 315 MPa (45.7 ksi) against 250 MPa (36.3 ksi) for 25L, about 26% more; tensile strength follows at 525 MPa (76.1 ksi) vs 470 MPa (68.2 ksi). A352 LCC is the more ductile: elongation 26% versus 21% for 25L, and A352 LCC is harder (155 HB vs 145 HB).

A352 LCCChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

25L vs A352 LCC: properties

25LA352 LCC

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

205 GPa29.7 Msi
202 GPa29.3 Msi

Shear Modulus

80 GPa11.6 Msi
79 GPa11.5 Msi

Tensile Strength (Ultimate)

470 MPa68.2 ksi
525 MPa76.1 ksi

Yield Strength (0.2% offset)

250 MPa36.3 ksi
315 MPa45.7 ksi

Elongation at Break

21%
26%

Reduction in Area

35%
45%

Compressive Strength

250 MPa36.3 ksi
320 MPa46.4 ksi

Shear Strength

310 MPa45 ksi
380 MPa55.1 ksi

Fatigue Strength (Endurance Limit)

190 MPa27.6 ksi
230 MPa33.4 ksi

Fracture Toughness (K_IC)

75 MPa·√m68.3 ksi·√in
100 MPa·√m91 ksi·√in

Charpy V-Notch Impact (RT)

25 J18.4 ft·lbf
60 J44.3 ft·lbf

Hardness, Brinell

145 HB
155 HB

Hardness, Rockwell B

78 HRB
84 HRB

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

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

1,460°C2,660 °F
1,425°C2,597 °F

Liquidus Temperature

1,510°C2,750 °F
1,505°C2,741 °F

Thermal

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

Specific Heat Capacity

470 J/kg·K0.11 BTU/lb·°F
486 J/kg·K0.12 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

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

Min Service Temperature

-40°C-40 °F
-46°C-51 °F

Same in both: Thermal Conductivity 50 W/m·K28.9 BTU/hr·ft·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Max Service Temperature (continuous) 425°C797 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 10 % IACS · Electrical Resistivity 1.7×10⁻⁷ Ω·m6.69 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.65 V
-0.62 V

Same in both: Corrosion Resistance 12 / 100

Manufacturability

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

Machinability

58 / 100
63 / 100

Machinability Rating (AISI 1212 = 100 %)

68%
72%

Weldability

85 / 100
80 / 100

Formability (cold)

25 / 100
20 / 100

Castability

72 / 100
75 / 100

Brazeability / Solderability

65 / 100
60 / 100

Polishability

55 / 100
45 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

25 MJ/kg10,748 BTU/lb
24 MJ/kg10,318 BTU/lb

Embodied Carbon (primary production)

2 kg CO₂/kg
1.9 kg CO₂/kg

Typical Recycled Content

80%
85%

Same in both: Embodied Water 45 L/kg5.4 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

60 kN·m/kg
67 kN·m/kg

Specific Stiffness (E / density)

26.2 MN·m/kg
25.7 MN·m/kg

Modulus of Resilience

152 kJ/m³
246 kJ/m³

Thermal Diffusivity

13.6 mm²/s
13.1 mm²/s

Thermal Shock Resistance Index

10
11

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 scaleA352 LCC25L

Manufacturing and finishing

Capability25LA352 LCC
Default condition——
Relative cost$$ Standard$$ 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.

25L vs A352 LCC — frequently asked

Is A352 LCC stronger than 25L?

Yes. A352 LCC has a typical yield strength of 315 MPa (45.7 ksi) against 250 MPa (36.3 ksi) for 25L — about 26% more. Tensile strength is 525 MPa (76.1 ksi) vs 470 MPa (68.2 ksi).

Which is cheaper, 25L or A352 LCC?

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 is easier to machine, 25L or A352 LCC?

A352 LCC, by a small margin. Both rate good for machinability — 63/100 against 58/100 for 25L; for welding the order is 25L first (excellent, 85/100) then A352 LCC (very good, 80/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 25L and A352 LCC 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.