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Steel 835M30 vs AR500

Steel · grade comparison

Steel 835M30 and AR500 are both steel grades. AR500 is the stronger of the two: yield strength 1,350 MPa (196 ksi) against 940 MPa (136 ksi) for 835M30, about 44% more; tensile strength follows at 1,650 MPa (239 ksi) vs 1,150 MPa (167 ksi). In exchange, 835M30 is the more ductile: elongation 14% versus 9% for AR500, and AR500 is harder (500 HB vs 340 HB). 835M30 runs hotter in service (400°C vs 250°C continuous) and AR500 conducts heat better (40 W/m·K vs 33 W/m·K). On the shop floor, 835M30 machines more easily (poor vs not recommended) and 835M30 sits in a lower cost tier (premium, $$$) than AR500 (high, $$$$).

835M30Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

AR500Choose it when strength drives the design.

835M30 vs AR500: properties

835M30AR500

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

1,150 MPa167 ksi
1,650 MPa239 ksi

Yield Strength (0.2% offset)

940 MPa136 ksi
1,350 MPa196 ksi

Elongation at Break

14%
9%

Reduction in Area

50%
30%

Compressive Strength

1,150 MPa167 ksi
1,400 MPa203 ksi

Shear Strength

700 MPa102 ksi
1,000 MPa145 ksi

Fatigue Strength (Endurance Limit)

550 MPa79.8 ksi
700 MPa102 ksi

Fracture Toughness (K_IC)

110 MPa·√m100 ksi·√in
50 MPa·√m45.5 ksi·√in

Charpy V-Notch Impact (RT)

55 J40.6 ft·lbf
35 J25.8 ft·lbf

Hardness, Brinell

340 HB
500 HB

Hardness, Rockwell C

36 HRC
50 HRC

Hardness, Vickers

355 HV
525 HV

Same in both: Elastic (Young's) Modulus 205 GPa29.7 Msi · Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Density

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

Liquidus Temperature

1,480°C2,696 °F
1,500°C2,732 °F

Same in both: Melting Point (Solidus) 1,420°C2,588 °F

Thermal

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

Thermal Conductivity

33 W/m·K19.1 BTU/hr·ft·°F
40 W/m·K23.1 BTU/hr·ft·°F

Latent Heat of Fusion

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

Max Service Temperature (continuous)

400°C752 °F
250°C482 °F

Min Service Temperature

-70°C-94 °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 µm/m·K6.7 µin/in·°F

Electrical

Conductivity and insulation.

Electrical Conductivity

5.5 % IACS
7.5 % IACS

Electrical Resistivity

3.1×10⁻⁷ Ω·m12.2 µΩ·in
2.3×10⁻⁷ Ω·m9.06 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.6 V
-0.62 V

Corrosion Resistance

16 / 100
13 / 100

Manufacturability

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

Machinability

32 / 100
12 / 100

Machinability Rating (AISI 1212 = 100 %)

30%
10%

Weldability

40 / 100
45 / 100

Formability (cold)

20 / 100
15 / 100

Castability

30 / 100
—

Brazeability / Solderability

45 / 100
—

Polishability

65 / 100
55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

36 MJ/kg15,477 BTU/lb
30 MJ/kg12,898 BTU/lb

Embodied Carbon (primary production)

2.9 kg CO₂/kg
2.3 kg CO₂/kg

Embodied Water

60 L/kg7.2 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)

147 kN·m/kg
210 kN·m/kg

Modulus of Resilience

2,155 kJ/m³
4,445 kJ/m³

Thermal Diffusivity

9 mm²/s
10.8 mm²/s

Thermal Shock Resistance Index

15
27

Same in both: Specific Stiffness (E / density) 26.1 MN·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 scaleAR500835M30

Manufacturing and finishing

Capability835M30AR500
CNC machining—Yes
Sheet metal—Yes
Default condition—Q&T
Relative cost$$$ Premium$$$$ High
Min. machined wall—0.8 mm
Best machined surface—Ra 1.6 µm
AlCrN—Yes
AlTiN—Yes
Black Oxide—Yes
CVD Al2O3—Yes
CVD TiCN—Yes
CVD TiN—Yes
Cerakote—Yes
Chrome Plating—Yes
CrN—Yes
DLC—Yes
E-Coating—Yes
HVOF Coating—Yes
Hot-Dip Galvanizing—Yes
MoS2—Yes
Multilayer CVD—Yes
Nickel Plating—Yes
PTFE Coating—Yes
Painting—Yes

They share 9 finishes: Copper Plating, Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Manganese Phosphate, Plasma Spray, Silver Plating, Zinc Phosphate.

835M30 vs AR500 — frequently asked

Is AR500 stronger than 835M30?

Yes. AR500 has a typical yield strength of 1,350 MPa (196 ksi) against 940 MPa (136 ksi) for 835M30 — about 44% more. Tensile strength is 1,650 MPa (239 ksi) vs 1,150 MPa (167 ksi).

Which is cheaper, 835M30 or AR500?

835M30 is the lower-cost material: it sits in the premium 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, 835M30 or AR500?

835M30. Its machinability rates poor (32/100) against not recommended (12/100) for AR500; for welding the order is AR500 first (fair, 45/100) then 835M30 (fair, 40/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 835M30 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.