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Steel 35# vs G32NiCrMo8-5-4

Steel · grade comparison

Steel 35# and G32NiCrMo8-5-4 are both steel grades. G32NiCrMo8-5-4 is the stronger of the two: yield strength 880 MPa (128 ksi) against 330 MPa (47.9 ksi) for 35#, about 167% more; tensile strength follows at 1,020 MPa (148 ksi) vs 560 MPa (81.2 ksi). In exchange, 35# is the more ductile: elongation 22% versus 12% for G32NiCrMo8-5-4, and G32NiCrMo8-5-4 is harder (310 HB vs 160 HB). 35# runs hotter in service (400°C vs 350°C continuous) and 35# conducts heat better (49 W/m·K vs 38 W/m·K). On the shop floor, 35# machines more easily (good vs poor), 35# welds better (good vs poor), and 35# sits in a lower cost tier (budget, $) than G32NiCrMo8-5-4 (premium, $$$).

35#Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

G32NiCrMo8-5-4Choose it when strength drives the design.

35# vs G32NiCrMo8-5-4: properties

35#G32NiCrMo8-5-4

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

Bulk Modulus

160 GPa23.2 Msi
163 GPa23.6 Msi

Tensile Strength (Ultimate)

560 MPa81.2 ksi
1,020 MPa148 ksi

Yield Strength (0.2% offset)

330 MPa47.9 ksi
880 MPa128 ksi

Elongation at Break

22%
12%

Reduction in Area

50%
35%

Shear Strength

400 MPa58 ksi
620 MPa89.9 ksi

Fatigue Strength (Endurance Limit)

250 MPa36.3 ksi
450 MPa65.3 ksi

Fracture Toughness (K_IC)

55 MPa·√m50.1 ksi·√in
80 MPa·√m72.8 ksi·√in

Charpy V-Notch Impact (RT)

60 J44.3 ft·lbf
35 J25.8 ft·lbf

Hardness, Brinell

160 HB
310 HB

Hardness, Rockwell B

83 HRB
—

Hardness, Vickers

168 HV
325 HV

Compressive Strength

—
900 MPa131 ksi

Hardness, Rockwell C

—
33 HRC

Same in both: Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,425°C2,597 °F
1,420°C2,588 °F

Liquidus Temperature

1,500°C2,732 °F
1,490°C2,714 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³

Thermal

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

Thermal Conductivity

49 W/m·K28.3 BTU/hr·ft·°F
38 W/m·K22 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

Max Service Temperature (continuous)

400°C752 °F
350°C662 °F

Min Service Temperature

-20°C-4 °F
-40°C-40 °F

Same in both: Latent Heat of Fusion 250 J/g107 BTU/lb

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
32 / 100

Machinability Rating (AISI 1212 = 100 %)

65%
40%

Weldability

55 / 100
30 / 100

Formability (cold)

45 / 100
8 / 100

Castability

35 / 100
60 / 100

Brazeability / Solderability

65 / 100
40 / 100

Polishability

55 / 100
65 / 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
2.1 kg CO₂/kg

Embodied Water

40 L/kg4.8 gal/lb
60 L/kg7.2 gal/lb

Typical Recycled Content

25%
65%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

71 kN·m/kg
130 kN·m/kg

Specific Stiffness (E / density)

26.4 MN·m/kg
26.8 MN·m/kg

Modulus of Resilience

263 kJ/m³
1,844 kJ/m³

Thermal Diffusivity

13.1 mm²/s
10.5 mm²/s

Thermal Shock Resistance Index

11
15

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#G32NiCrMo8-5-4

Manufacturing and finishing

Capability35#G32NiCrMo8-5-4
CNC machiningYes—
Sheet metalYes—
Default conditionHR—
Relative cost$ Budget$$$ Premium
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 G32NiCrMo8-5-4 — frequently asked

Is G32NiCrMo8-5-4 stronger than 35#?

Yes. G32NiCrMo8-5-4 has a typical yield strength of 880 MPa (128 ksi) against 330 MPa (47.9 ksi) for 35# — about 167% more. Tensile strength is 1,020 MPa (148 ksi) vs 560 MPa (81.2 ksi).

Which is cheaper, 35# or G32NiCrMo8-5-4?

35# is the lower-cost material: it sits in the budget tier ($) while G32NiCrMo8-5-4 is premium ($$$). 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 G32NiCrMo8-5-4?

35#. Its machinability rates good (60/100) against poor (32/100) for G32NiCrMo8-5-4; for welding the order is 35# first (good, 55/100) then G32NiCrMo8-5-4 (poor, 30/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 35# and G32NiCrMo8-5-4 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.