FabDigitFabDigit

Steel 20CrMnTi vs AR500

Steel · grade comparison

Steel 20CrMnTi and AR500 are both steel grades. AR500 is the stronger of the two: yield strength 1,350 MPa (196 ksi) against 400 MPa (58 ksi) for 20CrMnTi, about 3.4 times as much; tensile strength follows at 1,650 MPa (239 ksi) vs 620 MPa (89.9 ksi). In exchange, 20CrMnTi is the more ductile: elongation 22% versus 9% for AR500, and AR500 is harder (500 HB vs 187 HB). 20CrMnTi runs hotter in service (350°C vs 250°C continuous). On the shop floor, 20CrMnTi machines more easily (good vs not recommended) and 20CrMnTi sits in a lower cost tier (standard, $$) than AR500 (high, $$$$).

20CrMnTiChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.

AR500Choose it when strength drives the design.

20CrMnTi vs AR500: properties

20CrMnTiAR500

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

207 GPa30 Msi
205 GPa29.7 Msi

Tensile Strength (Ultimate)

620 MPa89.9 ksi
1,650 MPa239 ksi

Yield Strength (0.2% offset)

400 MPa58 ksi
1,350 MPa196 ksi

Elongation at Break

22%
9%

Reduction in Area

52%
30%

Shear Strength

400 MPa58 ksi
1,000 MPa145 ksi

Fatigue Strength (Endurance Limit)

290 MPa42.1 ksi
700 MPa102 ksi

Fracture Toughness (K_IC)

80 MPa·√m72.8 ksi·√in
50 MPa·√m45.5 ksi·√in

Charpy V-Notch Impact (RT)

65 J47.9 ft·lbf
35 J25.8 ft·lbf

Hardness, Brinell

187 HB
500 HB

Hardness, Rockwell B

90 HRB
—

Compressive Strength

—
1,400 MPa203 ksi

Hardness, Rockwell C

—
50 HRC

Hardness, Vickers

—
525 HV

Same in both: Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

1,440°C2,624 °F
1,420°C2,588 °F

Same in both: Liquidus Temperature 1,500°C2,732 °F

Thermal

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

Thermal Conductivity

43 W/m·K24.8 BTU/hr·ft·°F
40 W/m·K23.1 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

11.7 µm/m·K6.5 µin/in·°F
12 µm/m·K6.7 µin/in·°F

Latent Heat of Fusion

250 J/g107 BTU/lb
270 J/g116 BTU/lb

Max Service Temperature (continuous)

350°C662 °F
250°C482 °F

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Min Service Temperature -40°C-40 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

2.2×10⁻⁷ Ω·m8.66 µΩ·in
2.3×10⁻⁷ Ω·m9.06 µΩ·in

Electrical Conductivity

—
7.5 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.61 V
-0.62 V

Corrosion Resistance

12 / 100
13 / 100

Manufacturability

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

Machinability

58 / 100
12 / 100

Machinability Rating (AISI 1212 = 100 %)

60%
10%

Weldability

40 / 100
45 / 100

Formability (cold)

55 / 100
15 / 100

Brazeability / Solderability

55 / 100
—

Polishability

60 / 100
55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

29 MJ/kg12,468 BTU/lb
30 MJ/kg12,898 BTU/lb

Embodied Carbon (primary production)

2.1 kg CO₂/kg
2.3 kg CO₂/kg

Embodied Water

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

Typical Recycled Content

30%
25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

79 kN·m/kg
210 kN·m/kg

Specific Stiffness (E / density)

26.5 MN·m/kg
26.1 MN·m/kg

Modulus of Resilience

386 kJ/m³
4,445 kJ/m³

Thermal Diffusivity

11.7 mm²/s
10.8 mm²/s

Thermal Shock Resistance Index

11
27

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 scaleAR50020CrMnTi

Manufacturing and finishing

Capability20CrMnTiAR500
Default conditionAnnealedQ&T
Relative cost$$ Standard$$$$ High
Min. machined wall0.8 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 38 finishes: AlCrN, AlTiN, Black Oxide, CVD Al2O3, CVD TiCN, CVD TiN, Cerakote, Chrome Plating, Copper Plating, CrN, DLC, E-Coating and 26 more.

20CrMnTi vs AR500 — frequently asked

Is AR500 stronger than 20CrMnTi?

Yes. AR500 has a typical yield strength of 1,350 MPa (196 ksi) against 400 MPa (58 ksi) for 20CrMnTi — about 3.4 times as much. Tensile strength is 1,650 MPa (239 ksi) vs 620 MPa (89.9 ksi).

Which is cheaper, 20CrMnTi or AR500?

20CrMnTi is the lower-cost material: it sits in the standard tier ($$) while AR500 is high ($$$$). 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, 20CrMnTi or AR500?

20CrMnTi. Its machinability rates good (58/100) against not recommended (12/100) for AR500; for welding the order is AR500 first (fair, 45/100) then 20CrMnTi (fair, 40/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 20CrMnTi and AR500 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.