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Steel A352 Grade LCC vs WC4

Steel · grade comparison

Steel A352 Grade LCC and WC4 are both steel grades. WC4 is the stronger of the two: yield strength 335 MPa (48.6 ksi) against 315 MPa (45.7 ksi) for A352 Grade LCC, about 6% more. WC4 is harder — 163 HB against 150 HB for A352 Grade LCC — which matters for wear surfaces and threads. WC4 runs hotter in service (540°C vs 425°C continuous). On the shop floor, A352 Grade LCC welds better (very good vs good).

A352 Grade LCCChoose it when it will be welded.

WC4Choose it when strength drives the design, or when surface hardness matters.

A352 Grade LCC vs WC4: properties

A352 Grade LCCWC4

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

202 GPa29.3 Msi
200 GPa29 Msi

Shear Modulus

79 GPa11.5 Msi
78 GPa11.3 Msi

Tensile Strength (Ultimate)

520 MPa75.4 ksi
545 MPa79 ksi

Yield Strength (0.2% offset)

315 MPa45.7 ksi
335 MPa48.6 ksi

Elongation at Break

25%
24%

Reduction in Area

45%
50%

Compressive Strength

320 MPa46.4 ksi
340 MPa49.3 ksi

Shear Strength

320 MPa46.4 ksi
340 MPa49.3 ksi

Fatigue Strength (Endurance Limit)

225 MPa32.6 ksi
235 MPa34.1 ksi

Fracture Toughness (K_IC)

105 MPa·√m95.6 ksi·√in
120 MPa·√m109 ksi·√in

Charpy V-Notch Impact (RT)

65 J47.9 ft·lbf
48 J35.4 ft·lbf

Hardness, Brinell

150 HB
163 HB

Hardness, Rockwell B

82 HRB
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

Liquidus Temperature

1,505°C2,741 °F
1,500°C2,732 °F

Same in both: Melting Point (Solidus) 1,425°C2,597 °F

Thermal

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

Thermal Conductivity

46 W/m·K26.6 BTU/hr·ft·°F
42 W/m·K24.3 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

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

Max Service Temperature (continuous)

425°C797 °F
540°C1,004 °F

Min Service Temperature

-46°C-51 °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

1.8×10⁻⁷ Ω·m7.09 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).

Galvanic Potential (seawater, vs SCE)

-0.61 V
-0.62 V

Corrosion Resistance

12 / 100
14 / 100

Manufacturability

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

Weldability

78 / 100
55 / 100

Castability

72 / 100
70 / 100

Brazeability / Solderability

55 / 100
45 / 100

Same in both: Machinability 58 / 100 · Machinability Rating (AISI 1212 = 100 %) 60% · Formability (cold) 20 / 100 · Polishability 45 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Water

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

Typical Recycled Content

90%
75%

Same in both: Embodied Energy (primary production) 26 MJ/kg11,178 BTU/lb · Embodied Carbon (primary production) 2 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

66 kN·m/kg
70 kN·m/kg

Specific Stiffness (E / density)

25.7 MN·m/kg
25.5 MN·m/kg

Modulus of Resilience

246 kJ/m³
281 kJ/m³

Thermal Diffusivity

12.5 mm²/s
11.4 mm²/s

Thermal Shock Resistance Index

10
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 LCC

Manufacturing and finishing

CapabilityA352 Grade LCCWC4
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.

A352 Grade LCC vs WC4 — frequently asked

Is WC4 stronger than A352 Grade LCC?

Yes. WC4 has a typical yield strength of 335 MPa (48.6 ksi) against 315 MPa (45.7 ksi) for A352 Grade LCC — about 6% more. Tensile strength is 545 MPa (79 ksi) vs 520 MPa (75.4 ksi).

Which is cheaper, A352 Grade LCC or WC4?

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, A352 Grade LCC or WC4?

A352 Grade LCC. Its weldability rates very good (78/100) against good (55/100) for WC4.

Ready to make it?

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