FabDigitFabDigit

Stainless Steel 2205 vs Zeron 100

Stainless Steel · grade comparison

Stainless Steel 2205 and Zeron 100 are both stainless steel grades. Zeron 100 is the stronger of the two: yield strength 620 MPa (89.9 ksi) against 540 MPa (78.3 ksi) for 2205, about 15% more. On the shop floor, 2205 welds better (very good vs good), 2205 forms better (good vs fair), and Zeron 100 sits in a lower cost tier (premium, $$$) than 2205 (specialty, $$$$$).

2205Choose it when it will be welded.

Zeron 100Choose it when strength drives the design, or when cost is the deciding factor.

2205 vs Zeron 100: properties

2205Zeron 100

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

790 MPa115 ksi
830 MPa120 ksi

Yield Strength (0.2% offset)

540 MPa78.3 ksi
620 MPa89.9 ksi

Compressive Strength

540 MPa78.3 ksi
620 MPa89.9 ksi

Shear Strength

480 MPa69.6 ksi
500 MPa72.5 ksi

Fatigue Strength (Endurance Limit)

390 MPa56.6 ksi
400 MPa58 ksi

Charpy V-Notch Impact (RT)

220 J162 ft·lbf
230 J170 ft·lbf

Hardness, Brinell

255 HB
250 HB

Hardness, Rockwell B

100 HRB
—

Hardness, Rockwell C

26 HRC
25 HRC

Hardness, Vickers

265 HV
260 HV

Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.3 · Elongation at Break 30% · Reduction in Area 60% · Fracture Toughness (K_IC) 120 MPa·√m109 ksi·√in

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,385°C2,525 °F
1,350°C2,462 °F

Liquidus Temperature

1,445°C2,633 °F
1,400°C2,552 °F

Same in both: Density 7.8 g/cm³0.28 lb/in³

Thermal

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

Thermal Conductivity

16 W/m·K9.2 BTU/hr·ft·°F
14.7 W/m·K8.5 BTU/hr·ft·°F

Specific Heat Capacity

470 J/kg·K0.11 BTU/lb·°F
482 J/kg·K0.12 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

13 µm/m·K7.2 µin/in·°F
12.8 µm/m·K7.1 µin/in·°F

Max Service Temperature (continuous)

300°C572 °F
280°C536 °F

Same in both: Latent Heat of Fusion 270 J/g116 BTU/lb · Min Service Temperature -50°C-58 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

2.2 % IACS
2 % IACS

Electrical Resistivity

8×10⁻⁷ Ω·m31.5 µΩ·in
8.5×10⁻⁷ Ω·m33.5 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

80 / 100
86 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.15 V

Manufacturability

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

Machinability

32 / 100
25 / 100

Machinability Rating (AISI 1212 = 100 %)

30%
20%

Weldability

78 / 100
65 / 100

Formability (cold)

55 / 100
45 / 100

Brazeability / Solderability

40 / 100
35 / 100

Polishability

75 / 100
70 / 100

Castability

—
55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

62 MJ/kg26,655 BTU/lb
58 MJ/kg24,936 BTU/lb

Embodied Carbon (primary production)

4.6 kg CO₂/kg
4.5 kg CO₂/kg

Typical Recycled Content

65%
55%

Same in both: Embodied Water 130 L/kg15.6 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

101 kN·m/kg
106 kN·m/kg

Modulus of Resilience

729 kJ/m³
961 kJ/m³

Thermal Diffusivity

4.4 mm²/s
3.9 mm²/s

Same in both: Specific Stiffness (E / density) 25.6 MN·m/kg · Thermal Shock Resistance Index 5

Strength versus weight

Yield strength against density for every stainless steel grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

3005007001,0001,5002,0007.27.47.67.888.2Density (g/cm³)Yield strength (MPa) — log scale2205Zeron 100

Manufacturing and finishing

Capability2205Zeron 100
Default conditionSolution AnnealedSolution Annealed
Relative cost$$$$$ Specialty$$$ Premium
Min. machined wall1 mm0.8 mm
Best machined surfaceRa 1.6 µmRa 1.6 µm

Both are offered for CNC machining and Sheet metal. Both take the same 32 finishes: AlCrN, AlTiN, Black Oxide, CVD Al2O3, CVD TiCN, CVD TiN, Cerakote, Chrome Plating, CrN, DLC, Electroless Nickel (EN), Electropolishing and 20 more.

2205 vs Zeron 100 — frequently asked

Is Zeron 100 stronger than 2205?

Yes. Zeron 100 has a typical yield strength of 620 MPa (89.9 ksi) against 540 MPa (78.3 ksi) for 2205 — about 15% more. Tensile strength is 830 MPa (120 ksi) vs 790 MPa (115 ksi).

Which is cheaper, 2205 or Zeron 100?

Zeron 100 is the lower-cost material: it sits in the premium tier ($$$) while 2205 is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, 2205 or Zeron 100?

2205, by a small margin. Both rate poor for machinability — 32/100 against 25/100 for Zeron 100; for welding the order is 2205 first (very good, 78/100) then Zeron 100 (good, 65/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 2205 and Zeron 100 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.