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Steel A216 WCA vs GE300

Steel · grade comparison

Steel A216 WCA and GE300 are both steel grades. GE300 is the stronger of the two: yield strength 330 MPa (47.9 ksi) against 255 MPa (37 ksi) for A216 WCA, about 29% more; tensile strength follows at 570 MPa (82.7 ksi) vs 455 MPa (66 ksi). In exchange, A216 WCA is the more ductile: elongation 31% versus 18% for GE300, and GE300 is harder (175 HB vs 130 HB). 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.

GE300Choose it when strength drives the design.

A216 WCA vs GE300: properties

A216 WCAGE300

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

200 GPa29 Msi
207 GPa30 Msi

Shear Modulus

78 GPa11.3 Msi
80 GPa11.6 Msi

Tensile Strength (Ultimate)

455 MPa66 ksi
570 MPa82.7 ksi

Yield Strength (0.2% offset)

255 MPa37 ksi
330 MPa47.9 ksi

Elongation at Break

31%
18%

Reduction in Area

50%
33%

Compressive Strength

255 MPa37 ksi
330 MPa47.9 ksi

Shear Strength

285 MPa41.3 ksi
400 MPa58 ksi

Fatigue Strength (Endurance Limit)

200 MPa29 ksi
235 MPa34.1 ksi

Fracture Toughness (K_IC)

90 MPa·√m81.9 ksi·√in
65 MPa·√m59.2 ksi·√in

Charpy V-Notch Impact (RT)

48 J35.4 ft·lbf
35 J25.8 ft·lbf

Hardness, Brinell

130 HB
175 HB

Hardness, Rockwell B

72 HRB
88 HRB

Hardness, Vickers

—
185 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
7.85 g/cm³0.28 lb/in³

Liquidus Temperature

1,510°C2,750 °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

51 W/m·K29.5 BTU/hr·ft·°F
46 W/m·K26.6 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

Latent Heat of Fusion

247 J/g106 BTU/lb
270 J/g116 BTU/lb

Max Service Temperature (continuous)

425°C797 °F
400°C752 °F

Min Service Temperature

-29°C-20 °F
-20°C-4 °F

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F

Electrical

Conductivity and insulation.

Electrical Resistivity

1.7×10⁻⁷ Ω·m6.69 µΩ·in
1.8×10⁻⁷ Ω·m7.09 µΩ·in

Same in both: Electrical Conductivity 10 % IACS

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%
55%

Weldability

85 / 100
60 / 100

Formability (cold)

20 / 100
15 / 100

Castability

72 / 100
70 / 100

Brazeability / Solderability

55 / 100
60 / 100

Polishability

40 / 100
45 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

26 MJ/kg11,178 BTU/lb
28 MJ/kg12,038 BTU/lb

Embodied Carbon (primary production)

2.1 kg CO₂/kg
2.2 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
73 kN·m/kg

Specific Stiffness (E / density)

25.5 MN·m/kg
26.4 MN·m/kg

Modulus of Resilience

163 kJ/m³
263 kJ/m³

Thermal Diffusivity

13.9 mm²/s
12.5 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 WCAGE300

Manufacturing and finishing

CapabilityA216 WCAGE300
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 GE300 — frequently asked

Is GE300 stronger than A216 WCA?

Yes. GE300 has a typical yield strength of 330 MPa (47.9 ksi) against 255 MPa (37 ksi) for A216 WCA — about 29% more. Tensile strength is 570 MPa (82.7 ksi) vs 455 MPa (66 ksi).

Which is cheaper, A216 WCA or GE300?

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 GE300?

A216 WCA, by a small margin. Both rate good for machinability — 68/100 against 55/100 for GE300; for welding the order is A216 WCA first (excellent, 85/100) then GE300 (good, 60/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in A216 WCA and GE300 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.