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Steel A216 WCA vs ZG310-570

Steel · grade comparison

Steel A216 WCA and ZG310-570 are both steel grades. ZG310-570 is the stronger of the two: yield strength 340 MPa (49.3 ksi) against 255 MPa (37 ksi) for A216 WCA, about 33% more; tensile strength follows at 600 MPa (87 ksi) vs 455 MPa (66 ksi). In exchange, A216 WCA is the more ductile: elongation 31% versus 19% for ZG310-570, and ZG310-570 is harder (185 HB vs 130 HB). On the shop floor, A216 WCA machines more easily (good vs fair) and A216 WCA welds better (excellent vs fair).

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

ZG310-570Choose it when strength drives the design.

A216 WCA vs ZG310-570: properties

A216 WCAZG310-570

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
600 MPa87 ksi

Yield Strength (0.2% offset)

255 MPa37 ksi
340 MPa49.3 ksi

Elongation at Break

31%
19%

Reduction in Area

50%
28%

Compressive Strength

255 MPa37 ksi
340 MPa49.3 ksi

Shear Strength

285 MPa41.3 ksi
420 MPa60.9 ksi

Fatigue Strength (Endurance Limit)

200 MPa29 ksi
255 MPa37 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
30 J22.1 ft·lbf

Hardness, Brinell

130 HB
185 HB

Hardness, Rockwell B

72 HRB
91 HRB

Hardness, Vickers

—
195 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
7.8 g/cm³0.28 lb/in³

Melting Point (Solidus)

1,425°C2,597 °F
1,420°C2,588 °F

Liquidus Temperature

1,510°C2,750 °F
1,490°C2,714 °F

Thermal

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

Thermal Conductivity

51 W/m·K29.5 BTU/hr·ft·°F
47 W/m·K27.2 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

11.7 µm/m·K6.5 µin/in·°F
11.9 µm/m·K6.6 µin/in·°F

Latent Heat of Fusion

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

Max Service Temperature (continuous)

425°C797 °F
400°C752 °F

Min Service Temperature

-29°C-20 °F
-20°C-4 °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).

Same in both: Galvanic Potential (seawater, vs SCE) -0.65 V · Corrosion Resistance 10 / 100

Manufacturability

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

Machinability

68 / 100
50 / 100

Machinability Rating (AISI 1212 = 100 %)

70%
55%

Weldability

85 / 100
45 / 100

Formability (cold)

20 / 100
15 / 100

Castability

72 / 100
62 / 100

Polishability

40 / 100
55 / 100

Same in both: Brazeability / Solderability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

26 MJ/kg11,178 BTU/lb
27 MJ/kg11,608 BTU/lb

Embodied Carbon (primary production)

2.1 kg CO₂/kg
2 kg CO₂/kg

Embodied Water

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

Same in both: Typical Recycled Content 85%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

58 kN·m/kg
77 kN·m/kg

Specific Stiffness (E / density)

25.5 MN·m/kg
26.3 MN·m/kg

Modulus of Resilience

163 kJ/m³
282 kJ/m³

Thermal Diffusivity

13.9 mm²/s
12.6 mm²/s

Thermal Shock Resistance Index

10
12

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 WCAZG310-570

Manufacturing and finishing

CapabilityA216 WCAZG310-570
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 ZG310-570 — frequently asked

Is ZG310-570 stronger than A216 WCA?

Yes. ZG310-570 has a typical yield strength of 340 MPa (49.3 ksi) against 255 MPa (37 ksi) for A216 WCA — about 33% more. Tensile strength is 600 MPa (87 ksi) vs 455 MPa (66 ksi).

Which is cheaper, A216 WCA or ZG310-570?

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 ZG310-570?

A216 WCA. Its machinability rates good (68/100) against fair (50/100) for ZG310-570; for welding the order is A216 WCA first (excellent, 85/100) then ZG310-570 (fair, 45/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in A216 WCA and ZG310-570 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.