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Steel A216 WCC vs G17Mn5

Steel · grade comparison

Steel A216 WCC and G17Mn5 are both steel grades. A216 WCC is the stronger of the two: yield strength 315 MPa (45.7 ksi) against 280 MPa (40.6 ksi) for G17Mn5, about 13% more. In exchange, G17Mn5 is the more ductile: elongation 28% versus 25% for A216 WCC, and A216 WCC is harder (170 HB vs 155 HB).

A216 WCCChoose it when strength drives the design.

G17Mn5Choose it when the part is bent, formed or impact-loaded.

A216 WCC vs G17Mn5: properties

A216 WCCG17Mn5

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

202 GPa29.3 Msi
210 GPa30.5 Msi

Shear Modulus

78 GPa11.3 Msi
80 GPa11.6 Msi

Yield Strength (0.2% offset)

315 MPa45.7 ksi
280 MPa40.6 ksi

Elongation at Break

25%
28%

Reduction in Area

42%
45%

Compressive Strength

315 MPa45.7 ksi
280 MPa40.6 ksi

Shear Strength

340 MPa49.3 ksi
330 MPa47.9 ksi

Fatigue Strength (Endurance Limit)

230 MPa33.4 ksi
215 MPa31.2 ksi

Fracture Toughness (K_IC)

80 MPa·√m72.8 ksi·√in
110 MPa·√m100 ksi·√in

Charpy V-Notch Impact (RT)

42 J31 ft·lbf
100 J73.8 ft·lbf

Hardness, Brinell

170 HB
155 HB

Hardness, Rockwell B

87 HRB
82 HRB

Same in both: Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Tensile Strength (Ultimate) 520 MPa75.4 ksi

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

1,425°C2,597 °F
1,465°C2,669 °F

Liquidus Temperature

1,505°C2,741 °F
1,515°C2,759 °F

Thermal

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

Thermal Conductivity

50 W/m·K28.9 BTU/hr·ft·°F
47 W/m·K27.2 BTU/hr·ft·°F

Max Service Temperature (continuous)

425°C797 °F
400°C752 °F

Min Service Temperature

-29°C-20 °F
-40°C-40 °F

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12.2 µm/m·K6.8 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb

Electrical

Conductivity and insulation.

Electrical Conductivity

10 % IACS
—

Electrical Resistivity

1.7×10⁻⁷ Ω·m6.69 µΩ·in
2×10⁻⁷ Ω·m7.87 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 12 / 100

Manufacturability

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

Machinability

60 / 100
58 / 100

Machinability Rating (AISI 1212 = 100 %)

60%
65%

Weldability

85 / 100
82 / 100

Castability

70 / 100
72 / 100

Polishability

55 / 100
45 / 100

Same in both: Formability (cold) 20 / 100 · Brazeability / Solderability 60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

28 MJ/kg12,038 BTU/lb
24 MJ/kg10,318 BTU/lb

Embodied Carbon (primary production)

2.1 kg CO₂/kg
2 kg CO₂/kg

Embodied Water

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

Same in both: Typical Recycled Content 85%

Common Calculations

Ratios derived from the values above.

Specific Stiffness (E / density)

25.8 MN·m/kg
26.8 MN·m/kg

Modulus of Resilience

246 kJ/m³
187 kJ/m³

Thermal Diffusivity

13.6 mm²/s
12.7 mm²/s

Thermal Shock Resistance Index

11
10

Same in both: Specific Strength (UTS / density) 66 kN·m/kg

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 WCCG17Mn5

Manufacturing and finishing

CapabilityA216 WCCG17Mn5
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 WCC vs G17Mn5 — frequently asked

Is A216 WCC stronger than G17Mn5?

Yes. A216 WCC has a typical yield strength of 315 MPa (45.7 ksi) against 280 MPa (40.6 ksi) for G17Mn5 — about 13% more. Tensile strength is 520 MPa (75.4 ksi) vs 520 MPa (75.4 ksi).

Which is cheaper, A216 WCC or G17Mn5?

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.

When should I choose A216 WCC over G17Mn5?

Pick A216 WCC when strength drives the design. Pick G17Mn5 when the part is bent, formed or impact-loaded.

Ready to make it?

Upload a CAD file and FabDigit prices the part in A216 WCC and G17Mn5 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.