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Steel A217 WC1 vs WC5

Steel · grade comparison

Steel A217 WC1 and WC5 are both steel grades. WC5 is the stronger of the two: yield strength 330 MPa (47.9 ksi) against 290 MPa (42.1 ksi) for A217 WC1, about 14% more; tensile strength follows at 550 MPa (79.8 ksi) vs 500 MPa (72.5 ksi). In exchange, A217 WC1 is the more ductile: elongation 28% versus 24% for WC5, and WC5 is harder (170 HB vs 150 HB). On the shop floor, A217 WC1 welds better (very good vs good) and A217 WC1 sits in a lower cost tier (standard, $$) than WC5 (premium, $$$).

A217 WC1Choose it when the part is bent, formed or impact-loaded, or when it will be welded.

WC5Choose it when strength drives the design.

A217 WC1 vs WC5: properties

A217 WC1WC5

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

205 GPa29.7 Msi
202 GPa29.3 Msi

Shear Modulus

79 GPa11.5 Msi
78 GPa11.3 Msi

Tensile Strength (Ultimate)

500 MPa72.5 ksi
550 MPa79.8 ksi

Yield Strength (0.2% offset)

290 MPa42.1 ksi
330 MPa47.9 ksi

Elongation at Break

28%
24%

Reduction in Area

50%
45%

Compressive Strength

290 MPa42.1 ksi
330 MPa47.9 ksi

Shear Strength

330 MPa47.9 ksi
380 MPa55.1 ksi

Fatigue Strength (Endurance Limit)

220 MPa31.9 ksi
235 MPa34.1 ksi

Fracture Toughness (K_IC)

110 MPa·√m100 ksi·√in
105 MPa·√m95.6 ksi·√in

Charpy V-Notch Impact (RT)

45 J33.2 ft·lbf
55 J40.6 ft·lbf

Hardness, Brinell

150 HB
170 HB

Hardness, Rockwell B

80 HRB
88 HRB

Hardness, Vickers

—
178 HV

Same in both: Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Liquidus Temperature

1,510°C2,750 °F
1,505°C2,741 °F

Same in both: Density 7.83 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,425°C2,597 °F

Thermal

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

Max Service Temperature (continuous)

500°C932 °F
540°C1,004 °F

Min Service Temperature

-29°C-20 °F
-30°C-22 °F

Same in both: Thermal Conductivity 42 W/m·K24.3 BTU/hr·ft·°F · 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 Resistivity

1.9×10⁻⁷ Ω·m7.48 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).

Corrosion Resistance

12 / 100
13 / 100

Galvanic Potential (seawater, vs SCE)

—
-0.61 V

Manufacturability

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

Machinability

58 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

65%
58%

Weldability

70 / 100
60 / 100

Formability (cold)

20 / 100
15 / 100

Castability

68 / 100
70 / 100

Brazeability / Solderability

55 / 100
45 / 100

Same in both: Polishability 45 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

30 MJ/kg12,898 BTU/lb
26 MJ/kg11,178 BTU/lb

Embodied Carbon (primary production)

2.2 kg CO₂/kg
2 kg CO₂/kg

Embodied Water

60 L/kg7.2 gal/lb
55 L/kg6.6 gal/lb

Typical Recycled Content

85%
80%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

64 kN·m/kg
70 kN·m/kg

Specific Stiffness (E / density)

26.2 MN·m/kg
25.8 MN·m/kg

Modulus of Resilience

205 kJ/m³
270 kJ/m³

Thermal Shock Resistance Index

8
9

Same in both: Thermal Diffusivity 11.4 mm²/s

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 scaleWC5A217 WC1

Manufacturing and finishing

CapabilityA217 WC1WC5
Default condition——
Relative cost$$ Standard$$$ Premium
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.

A217 WC1 vs WC5 — frequently asked

Is WC5 stronger than A217 WC1?

Yes. WC5 has a typical yield strength of 330 MPa (47.9 ksi) against 290 MPa (42.1 ksi) for A217 WC1 — about 14% more. Tensile strength is 550 MPa (79.8 ksi) vs 500 MPa (72.5 ksi).

Which is cheaper, A217 WC1 or WC5?

A217 WC1 is the lower-cost material: it sits in the standard tier ($$) while WC5 is premium ($$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which welds better, A217 WC1 or WC5?

A217 WC1. Its weldability rates very good (70/100) against good (60/100) for WC5.

Ready to make it?

Upload a CAD file and FabDigit prices the part in A217 WC1 and WC5 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.