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Steel A352 Grade LC2-1 vs WC4

Steel · grade comparison

Steel A352 Grade LC2-1 and WC4 are both steel grades. A352 Grade LC2-1 is the stronger of the two: yield strength 640 MPa (92.8 ksi) against 335 MPa (48.6 ksi) for WC4, about 91% more; tensile strength follows at 800 MPa (116 ksi) vs 545 MPa (79 ksi). In exchange, WC4 is the more ductile: elongation 24% versus 20% for A352 Grade LC2-1, and A352 Grade LC2-1 is harder (235 HB vs 163 HB). WC4 runs hotter in service (540°C vs 400°C continuous). On the shop floor, WC4 machines more easily (good vs fair), WC4 welds better (good vs fair), and WC4 sits in a lower cost tier (standard, $$) than A352 Grade LC2-1 (premium, $$$).

A352 Grade LC2-1Choose it when strength drives the design.

WC4Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

A352 Grade LC2-1 vs WC4: properties

A352 Grade LC2-1WC4

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

205 GPa29.7 Msi
200 GPa29 Msi

Shear Modulus

80 GPa11.6 Msi
78 GPa11.3 Msi

Tensile Strength (Ultimate)

800 MPa116 ksi
545 MPa79 ksi

Yield Strength (0.2% offset)

640 MPa92.8 ksi
335 MPa48.6 ksi

Elongation at Break

20%
24%

Reduction in Area

48%
50%

Compressive Strength

640 MPa92.8 ksi
340 MPa49.3 ksi

Shear Strength

490 MPa71.1 ksi
340 MPa49.3 ksi

Fatigue Strength (Endurance Limit)

340 MPa49.3 ksi
235 MPa34.1 ksi

Fracture Toughness (K_IC)

110 MPa·√m100 ksi·√in
120 MPa·√m109 ksi·√in

Charpy V-Notch Impact (RT)

70 J51.6 ft·lbf
48 J35.4 ft·lbf

Hardness, Brinell

235 HB
163 HB

Hardness, Rockwell C

22 HRC
—

Hardness, Rockwell B

—
85 HRB

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

Physical

Density and transition temperatures.

Density

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

Same in both: Melting Point (Solidus) 1,425°C2,597 °F · Liquidus Temperature 1,500°C2,732 °F

Thermal

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

Thermal Conductivity

38 W/m·K22 BTU/hr·ft·°F
42 W/m·K24.3 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

11.7 µm/m·K6.5 µin/in·°F
12.3 µm/m·K6.8 µin/in·°F

Max Service Temperature (continuous)

400°C752 °F
540°C1,004 °F

Min Service Temperature

-73°C-99 °F
-29°C-20 °F

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Latent Heat of Fusion 270 J/g116 BTU/lb

Electrical

Conductivity and insulation.

Electrical Resistivity

3×10⁻⁷ Ω·m11.8 µΩ·in
2.2×10⁻⁷ Ω·m8.66 µΩ·in

Electrical Conductivity

—
7.8 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

20 / 100
14 / 100

Galvanic Potential (seawater, vs SCE)

—
-0.62 V

Manufacturability

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

Machinability

45 / 100
58 / 100

Machinability Rating (AISI 1212 = 100 %)

50%
60%

Weldability

45 / 100
55 / 100

Formability (cold)

15 / 100
20 / 100

Castability

65 / 100
70 / 100

Brazeability / Solderability

40 / 100
45 / 100

Polishability

55 / 100
45 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

2.2 kg CO₂/kg
2 kg CO₂/kg

Embodied Water

60 L/kg7.2 gal/lb
55 L/kg6.6 gal/lb

Same in both: Embodied Energy (primary production) 26 MJ/kg11,178 BTU/lb · Typical Recycled Content 75%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

102 kN·m/kg
70 kN·m/kg

Specific Stiffness (E / density)

26.1 MN·m/kg
25.5 MN·m/kg

Modulus of Resilience

999 kJ/m³
281 kJ/m³

Thermal Diffusivity

10.3 mm²/s
11.4 mm²/s

Thermal Shock Resistance Index

13
9

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 scaleWC4A352 Grade LC2-1

Manufacturing and finishing

CapabilityA352 Grade LC2-1WC4
Default condition——
Relative cost$$$ Premium$$ 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.

A352 Grade LC2-1 vs WC4 — frequently asked

Is A352 Grade LC2-1 stronger than WC4?

Yes. A352 Grade LC2-1 has a typical yield strength of 640 MPa (92.8 ksi) against 335 MPa (48.6 ksi) for WC4 — about 91% more. Tensile strength is 800 MPa (116 ksi) vs 545 MPa (79 ksi).

Which is cheaper, A352 Grade LC2-1 or WC4?

WC4 is the lower-cost material: it sits in the standard tier ($$) while A352 Grade LC2-1 is premium ($$$). 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, A352 Grade LC2-1 or WC4?

WC4. Its machinability rates good (58/100) against fair (45/100) for A352 Grade LC2-1; for welding the order is WC4 first (good, 55/100) then A352 Grade LC2-1 (fair, 45/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in A352 Grade LC2-1 and WC4 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.