FabDigitFabDigit

Steel A352 Grade LC4 vs WC1

Steel · grade comparison

Steel A352 Grade LC4 and WC1 are both steel grades. A352 Grade LC4 is the stronger of the two: yield strength 330 MPa (47.9 ksi) against 305 MPa (44.2 ksi) for WC1, about 8% more. A352 Grade LC4 is harder — 170 HB against 160 HB for WC1 — which matters for wear surfaces and threads. WC1 runs hotter in service (455°C vs 340°C continuous) and WC1 conducts heat better (42 W/m·K vs 33 W/m·K). On the shop floor, WC1 welds better (very good vs good) and WC1 sits in a lower cost tier (standard, $$) than A352 Grade LC4 (premium, $$$).

A352 Grade LC4Choose it when strength drives the design, or when surface hardness matters.

WC1Choose it when the part sees heat, or when it will be welded.

A352 Grade LC4 vs WC1: properties

A352 Grade LC4WC1

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

200 GPa29 Msi
205 GPa29.7 Msi

Shear Modulus

78 GPa11.3 Msi
80 GPa11.6 Msi

Tensile Strength (Ultimate)

540 MPa78.3 ksi
520 MPa75.4 ksi

Yield Strength (0.2% offset)

330 MPa47.9 ksi
305 MPa44.2 ksi

Elongation at Break

30%
28%

Reduction in Area

55%
48%

Compressive Strength

330 MPa47.9 ksi
300 MPa43.5 ksi

Shear Strength

350 MPa50.8 ksi
340 MPa49.3 ksi

Fatigue Strength (Endurance Limit)

240 MPa34.8 ksi
210 MPa30.5 ksi

Fracture Toughness (K_IC)

150 MPa·√m137 ksi·√in
130 MPa·√m118 ksi·√in

Charpy V-Notch Impact (RT)

110 J81.1 ft·lbf
50 J36.9 ft·lbf

Hardness, Brinell

170 HB
160 HB

Hardness, Rockwell B

87 HRB
84 HRB

Hardness, Vickers

—
168 HV

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

Physical

Density and transition temperatures.

Liquidus Temperature

1,500°C2,732 °F
1,505°C2,741 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,425°C2,597 °F

Thermal

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

Thermal Conductivity

33 W/m·K19.1 BTU/hr·ft·°F
42 W/m·K24.3 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

11.3 µm/m·K6.3 µin/in·°F
12.2 µm/m·K6.8 µin/in·°F

Max Service Temperature (continuous)

340°C644 °F
455°C851 °F

Min Service Temperature

-115°C-175 °F
-29°C-20 °F

Same in both: Latent Heat of Fusion 270 J/g116 BTU/lb

Electrical

Conductivity and insulation.

Electrical Resistivity

3.5×10⁻⁷ Ω·m13.8 µΩ·in
2×10⁻⁷ Ω·m7.87 µΩ·in

Electrical Conductivity

—
8.5 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.62 V
-0.61 V

Corrosion Resistance

15 / 100
12 / 100

Manufacturability

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

Machinability

55 / 100
58 / 100

Weldability

60 / 100
70 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 60% · Formability (cold) 20 / 100 · Castability 70 / 100 · Brazeability / Solderability 55 / 100 · Polishability 50 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

33 MJ/kg14,187 BTU/lb
26 MJ/kg11,178 BTU/lb

Embodied Carbon (primary production)

2.6 kg CO₂/kg
2.1 kg CO₂/kg

Embodied Water

45 L/kg5.4 gal/lb
55 L/kg6.6 gal/lb

Typical Recycled Content

75%
80%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

69 kN·m/kg
66 kN·m/kg

Specific Stiffness (E / density)

25.5 MN·m/kg
26.1 MN·m/kg

Modulus of Resilience

272 kJ/m³
227 kJ/m³

Thermal Diffusivity

8.8 mm²/s
11.4 mm²/s

Thermal Shock Resistance Index

8
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 scaleWC1A352 Grade LC4

Manufacturing and finishing

CapabilityA352 Grade LC4WC1
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 LC4 vs WC1 — frequently asked

Is A352 Grade LC4 stronger than WC1?

Yes. A352 Grade LC4 has a typical yield strength of 330 MPa (47.9 ksi) against 305 MPa (44.2 ksi) for WC1 — about 8% more. Tensile strength is 540 MPa (78.3 ksi) vs 520 MPa (75.4 ksi).

Which is cheaper, A352 Grade LC4 or WC1?

WC1 is the lower-cost material: it sits in the standard tier ($$) while A352 Grade LC4 is premium ($$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which welds better, A352 Grade LC4 or WC1?

WC1. Its weldability rates very good (70/100) against good (60/100) for A352 Grade LC4.

Ready to make it?

Upload a CAD file and FabDigit prices the part in A352 Grade LC4 and WC1 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.