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Steel A216 WCA vs SC480

Steel · grade comparison

Steel A216 WCA and SC480 are both steel grades. SC480 is the stronger of the two: yield strength 290 MPa (42.1 ksi) against 255 MPa (37 ksi) for A216 WCA, about 14% more; tensile strength follows at 520 MPa (75.4 ksi) vs 455 MPa (66 ksi). In exchange, A216 WCA is the more ductile: elongation 31% versus 18% for SC480, and SC480 is harder (160 HB vs 130 HB). A216 WCA conducts electricity better (10 % IACS vs 9 % IACS). On the shop floor, A216 WCA machines more easily (68 vs 55 out of 100) and A216 WCA welds better (excellent vs good).

A216 WCAChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

SC480Choose it when strength drives the design.

A216 WCA vs SC480: properties

A216 WCASC480

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
79 GPa11.5 Msi

Tensile Strength (Ultimate)

455 MPa66 ksi
520 MPa75.4 ksi

Yield Strength (0.2% offset)

255 MPa37 ksi
290 MPa42.1 ksi

Elongation at Break

31%
18%

Reduction in Area

50%
30%

Compressive Strength

255 MPa37 ksi
290 MPa42.1 ksi

Shear Strength

285 MPa41.3 ksi
390 MPa56.6 ksi

Fatigue Strength (Endurance Limit)

200 MPa29 ksi
220 MPa31.9 ksi

Fracture Toughness (K_IC)

90 MPa·√m81.9 ksi·√in
60 MPa·√m54.6 ksi·√in

Charpy V-Notch Impact (RT)

48 J35.4 ft·lbf
20 J14.8 ft·lbf

Hardness, Brinell

130 HB
160 HB

Hardness, Rockwell B

72 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.

Density

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

Liquidus Temperature

1,510°C2,750 °F
1,490°C2,714 °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

51 W/m·K29.5 BTU/hr·ft·°F
48 W/m·K27.7 BTU/hr·ft·°F

Specific Heat Capacity

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

Latent Heat of Fusion

247 J/g106 BTU/lb
250 J/g107 BTU/lb

Min Service Temperature

-29°C-20 °F
-20°C-4 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 11.7 µm/m·K6.5 µin/in·°F · Max Service Temperature (continuous) 425°C797 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

10 % IACS
9 % IACS

Electrical Resistivity

1.7×10⁻⁷ Ω·m6.69 µΩ·in
1.9×10⁻⁷ Ω·m7.48 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.65 V
-0.61 V

Same in both: Corrosion Resistance 10 / 100

Manufacturability

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

Machinability

68 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

70%
58%

Weldability

85 / 100
55 / 100

Formability (cold)

20 / 100
15 / 100

Castability

72 / 100
70 / 100

Polishability

40 / 100
50 / 100

Same in both: Brazeability / Solderability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

26 MJ/kg11,178 BTU/lb
25 MJ/kg10,748 BTU/lb

Embodied Carbon (primary production)

2.1 kg CO₂/kg
1.9 kg CO₂/kg

Same in both: Embodied Water 45 L/kg5.4 gal/lb · Typical Recycled Content 85%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

58 kN·m/kg
66 kN·m/kg

Specific Stiffness (E / density)

25.5 MN·m/kg
26.2 MN·m/kg

Modulus of Resilience

163 kJ/m³
205 kJ/m³

Thermal Diffusivity

13.9 mm²/s
12.8 mm²/s

Same in both: Thermal Shock Resistance Index 10

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 scaleA216 WCASC480

Manufacturing and finishing

CapabilityA216 WCASC480
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.

A216 WCA vs SC480 — frequently asked

Is SC480 stronger than A216 WCA?

Yes. SC480 has a typical yield strength of 290 MPa (42.1 ksi) against 255 MPa (37 ksi) for A216 WCA — about 14% more. Tensile strength is 520 MPa (75.4 ksi) vs 455 MPa (66 ksi).

Which is cheaper, A216 WCA or SC480?

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, A216 WCA or SC480?

A216 WCA, by a small margin. Both rate good for machinability — 68/100 against 55/100 for SC480; for welding the order is A216 WCA first (excellent, 85/100) then SC480 (good, 55/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in A216 WCA and SC480 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.