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Refractory Metal 60Cr-40Ni vs Chromium Alloy 33

Refractory Metal · grade comparison

Refractory Metal 60Cr-40Ni and Chromium Alloy 33 are both refractory metal grades. Chromium Alloy 33 is the stronger of the two: yield strength 430 MPa (62.4 ksi) against 310 MPa (45 ksi) for 60Cr-40Ni, about 39% more; tensile strength follows at 810 MPa (117 ksi) vs 415 MPa (60.2 ksi). Chromium Alloy 33 is the more ductile: elongation 50% versus 2% for 60Cr-40Ni, and 60Cr-40Ni is harder (220 HB vs 200 HB). 60Cr-40Ni is stiffer (225 GPa vs 200 GPa) and 60Cr-40Ni runs hotter in service (1,150°C vs 450°C continuous). On the shop floor, Chromium Alloy 33 machines more easily (poor vs not recommended) and Chromium Alloy 33 welds better (very good vs poor).

60Cr-40NiChoose it when the part sees heat.

Chromium Alloy 33Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

60Cr-40Ni vs Chromium Alloy 33: properties

60Cr-40NiChromium Alloy 33

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

225 GPa32.6 Msi
200 GPa29 Msi

Shear Modulus

88 GPa12.8 Msi
77 GPa11.2 Msi

Bulk Modulus

175 GPa25.4 Msi
167 GPa24.2 Msi

Poisson's Ratio

0.28
0.3

Tensile Strength (Ultimate)

415 MPa60.2 ksi
810 MPa117 ksi

Yield Strength (0.2% offset)

310 MPa45 ksi
430 MPa62.4 ksi

Elongation at Break

2%
50%

Reduction in Area

2%
65%

Compressive Strength

850 MPa123 ksi
—

Shear Strength

290 MPa42.1 ksi
490 MPa71.1 ksi

Fatigue Strength (Endurance Limit)

150 MPa21.8 ksi
330 MPa47.9 ksi

Fracture Toughness (K_IC)

25 MPa·√m22.8 ksi·√in
—

Charpy V-Notch Impact (RT)

5 J3.7 ft·lbf
180 J133 ft·lbf

Hardness, Brinell

220 HB
200 HB

Hardness, Rockwell B

96 HRB
94 HRB

Hardness, Rockwell C

19 HRC
—

Hardness, Vickers

230 HV
—

Physical

Density and transition temperatures.

Density

7.7 g/cm³0.28 lb/in³
7.9 g/cm³0.29 lb/in³

Liquidus Temperature

1,450°C2,642 °F
1,400°C2,552 °F

Same in both: Melting Point (Solidus) 1,350°C2,462 °F

Thermal

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

Thermal Conductivity

15 W/m·K8.7 BTU/hr·ft·°F
12 W/m·K6.9 BTU/hr·ft·°F

Specific Heat Capacity

460 J/kg·K0.11 BTU/lb·°F
450 J/kg·K0.11 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

11.5 µm/m·K6.4 µin/in·°F
14.5 µm/m·K8.1 µin/in·°F

Max Service Temperature (continuous)

1,150°C2,102 °F
450°C842 °F

Min Service Temperature

20°C68 °F
-100°C-148 °F

Latent Heat of Fusion

—
270 J/g116 BTU/lb

Electrical

Conductivity and insulation.

Electrical Conductivity

1.5 % IACS
1.7 % IACS

Electrical Resistivity

1.15×10⁻⁶ Ω·m45.3 µΩ·in
1×10⁻⁶ Ω·m39.4 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.15 V
-0.05 V

Corrosion Resistance

82 / 100
88 / 100

Manufacturability

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

Machinability

12 / 100
22 / 100

Machinability Rating (AISI 1212 = 100 %)

10%
15%

Weldability

20 / 100
72 / 100

Formability (cold)

3 / 100
50 / 100

Castability

45 / 100
35 / 100

Brazeability / Solderability

35 / 100
55 / 100

Polishability

55 / 100
80 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

95 MJ/kg40,843 BTU/lb
78 MJ/kg33,534 BTU/lb

Embodied Carbon (primary production)

8 kg CO₂/kg
5.8 kg CO₂/kg

Embodied Water

220 L/kg26.4 gal/lb
200 L/kg24 gal/lb

Typical Recycled Content

15%
35%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

54 kN·m/kg
103 kN·m/kg

Specific Stiffness (E / density)

29.2 MN·m/kg
25.3 MN·m/kg

Modulus of Resilience

214 kJ/m³
462 kJ/m³

Thermal Diffusivity

4.2 mm²/s
3.4 mm²/s

Thermal Shock Resistance Index

2
3

Strength versus weight

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

1502003005007001,0001,5005101520Density (g/cm³)Yield strength (MPa) — log scale60Cr-40NiChromium Alloy 33

Manufacturing and finishing

Capability60Cr-40NiChromium Alloy 33
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

60Cr-40Ni vs Chromium Alloy 33 — frequently asked

Is Chromium Alloy 33 stronger than 60Cr-40Ni?

Yes. Chromium Alloy 33 has a typical yield strength of 430 MPa (62.4 ksi) against 310 MPa (45 ksi) for 60Cr-40Ni — about 39% more. Tensile strength is 810 MPa (117 ksi) vs 415 MPa (60.2 ksi).

Which is cheaper, 60Cr-40Ni or Chromium Alloy 33?

Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, 60Cr-40Ni or Chromium Alloy 33?

Chromium Alloy 33. Its machinability rates poor (22/100) against not recommended (12/100) for 60Cr-40Ni; for welding the order is Chromium Alloy 33 first (very good, 72/100) then 60Cr-40Ni (poor, 20/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 60Cr-40Ni and Chromium Alloy 33 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.