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Steel 35# vs G10MnMoV6-3

Steel · grade comparison

Steel 35# and G10MnMoV6-3 are both steel grades. G10MnMoV6-3 is the stronger of the two: yield strength 540 MPa (78.3 ksi) against 330 MPa (47.9 ksi) for 35#, about 64% more; tensile strength follows at 690 MPa (100 ksi) vs 560 MPa (81.2 ksi). In exchange, 35# is the more ductile: elongation 22% versus 18% for G10MnMoV6-3, and G10MnMoV6-3 is harder (205 HB vs 160 HB). 35# conducts heat better (49 W/m·K vs 42 W/m·K). On the shop floor, G10MnMoV6-3 welds better (very good vs good) and 35# sits in a lower cost tier (budget, $) than G10MnMoV6-3 (standard, $$).

35#Choose it when the part is bent, formed or impact-loaded, or when cost is the deciding factor.

G10MnMoV6-3Choose it when strength drives the design, or when it will be welded.

35# vs G10MnMoV6-3: properties

35#G10MnMoV6-3

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

207 GPa30 Msi
210 GPa30.5 Msi

Shear Modulus

80 GPa11.6 Msi
81 GPa11.7 Msi

Tensile Strength (Ultimate)

560 MPa81.2 ksi
690 MPa100 ksi

Yield Strength (0.2% offset)

330 MPa47.9 ksi
540 MPa78.3 ksi

Elongation at Break

22%
18%

Reduction in Area

50%
45%

Shear Strength

400 MPa58 ksi
415 MPa60.2 ksi

Fracture Toughness (K_IC)

55 MPa·√m50.1 ksi·√in
110 MPa·√m100 ksi·√in

Charpy V-Notch Impact (RT)

60 J44.3 ft·lbf
55 J40.6 ft·lbf

Hardness, Brinell

160 HB
205 HB

Hardness, Rockwell B

83 HRB
—

Hardness, Vickers

168 HV
215 HV

Compressive Strength

—
540 MPa78.3 ksi

Hardness, Rockwell C

—
16 HRC

Same in both: Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Fatigue Strength (Endurance Limit) 250 MPa36.3 ksi

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,425°C2,597 °F
1,420°C2,588 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Liquidus Temperature 1,500°C2,732 °F

Thermal

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

Thermal Conductivity

49 W/m·K28.3 BTU/hr·ft·°F
42 W/m·K24.3 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

11.6 µm/m·K6.4 µin/in·°F
12.3 µm/m·K6.8 µin/in·°F

Latent Heat of Fusion

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

Min Service Temperature

-20°C-4 °F
-40°C-40 °F

Same in both: Max Service Temperature (continuous) 400°C752 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

10 % IACS
7.5 % IACS

Electrical Resistivity

1.7×10⁻⁷ Ω·m6.69 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)

-0.65 V
-0.6 V

Corrosion Resistance

11 / 100
12 / 100

Manufacturability

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

Machinability

60 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

65%
58%

Weldability

55 / 100
72 / 100

Formability (cold)

45 / 100
15 / 100

Castability

35 / 100
68 / 100

Brazeability / Solderability

65 / 100
50 / 100

Polishability

55 / 100
50 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

25 MJ/kg10,748 BTU/lb
26 MJ/kg11,178 BTU/lb

Embodied Carbon (primary production)

1.9 kg CO₂/kg
2 kg CO₂/kg

Embodied Water

40 L/kg4.8 gal/lb
45 L/kg5.4 gal/lb

Typical Recycled Content

25%
80%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

71 kN·m/kg
88 kN·m/kg

Specific Stiffness (E / density)

26.4 MN·m/kg
26.8 MN·m/kg

Modulus of Resilience

263 kJ/m³
694 kJ/m³

Thermal Diffusivity

13.1 mm²/s
11.6 mm²/s

Same in both: Thermal Shock Resistance Index 11

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 scale35#G10MnMoV6-3

Manufacturing and finishing

Capability35#G10MnMoV6-3
CNC machiningYes—
Sheet metalYes—
Default conditionHR—
Relative cost$ Budget$$ Standard
Min. machined wall0.8 mm—
Best machined surfaceRa 1.6 µm—
AlCrNYes—
AlTiNYes—
Black OxideYes—
CVD Al2O3Yes—
CVD TiCNYes—
CVD TiNYes—
CerakoteYes—
Chrome PlatingYes—
CrNYes—
DLCYes—
E-CoatingYes—
HVOF CoatingYes—
Hot-Dip GalvanizingYes—
MoS2Yes—
Multilayer CVDYes—
Nickel PlatingYes—
PTFE CoatingYes—
PaintingYes—

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

35# vs G10MnMoV6-3 — frequently asked

Is G10MnMoV6-3 stronger than 35#?

Yes. G10MnMoV6-3 has a typical yield strength of 540 MPa (78.3 ksi) against 330 MPa (47.9 ksi) for 35# — about 64% more. Tensile strength is 690 MPa (100 ksi) vs 560 MPa (81.2 ksi).

Which is cheaper, 35# or G10MnMoV6-3?

35# is the lower-cost material: it sits in the budget tier ($) while G10MnMoV6-3 is standard ($$). 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, 35# or G10MnMoV6-3?

35#, by a small margin. Both rate good for machinability — 60/100 against 55/100 for G10MnMoV6-3; for welding the order is G10MnMoV6-3 first (very good, 72/100) then 35# (good, 55/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 35# and G10MnMoV6-3 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.