FabDigitFabDigit

Steel 23QG090 vs 35W250

Steel · grade comparison

Steel 23QG090 and 35W250 are both steel grades. 35W250 is the stronger of the two: yield strength 360 MPa (52.2 ksi) against 315 MPa (45.7 ksi) for 23QG090, about 14% more; tensile strength follows at 480 MPa (69.6 ksi) vs 350 MPa (50.8 ksi). 35W250 is the more ductile: elongation 12% versus 10% for 23QG090, and 23QG090 is harder (92 HRB vs 82 HRB). 35W250 is stiffer (195 GPa vs 120 GPa) and 23QG090 runs hotter in service (200°C vs 180°C continuous). On the shop floor, 35W250 machines more easily (45 vs 35 out of 100) and 35W250 welds better (fair vs poor).

23QG090Choose it when the part sees heat.

35W250Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

23QG090 vs 35W250: properties

23QG09035W250

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

120 GPa17.4 Msi
195 GPa28.3 Msi

Shear Modulus

65 GPa9.4 Msi
76 GPa11 Msi

Bulk Modulus

165 GPa23.9 Msi
160 GPa23.2 Msi

Tensile Strength (Ultimate)

350 MPa50.8 ksi
480 MPa69.6 ksi

Yield Strength (0.2% offset)

315 MPa45.7 ksi
360 MPa52.2 ksi

Elongation at Break

10%
12%

Shear Strength

250 MPa36.3 ksi
330 MPa47.9 ksi

Fatigue Strength (Endurance Limit)

190 MPa27.6 ksi
210 MPa30.5 ksi

Charpy V-Notch Impact (RT)

6 J4.4 ft·lbf
5 J3.7 ft·lbf

Hardness, Rockwell B

92 HRB
82 HRB

Compressive Strength

—
360 MPa52.2 ksi

Hardness, Brinell

—
180 HB

Same in both: Poisson's Ratio 0.3 · Hardness, Vickers 190 HV

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,470°C2,678 °F
1,490°C2,714 °F

Liquidus Temperature

1,500°C2,732 °F
1,510°C2,750 °F

Same in both: Density 7.65 g/cm³0.28 lb/in³

Thermal

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

Thermal Conductivity

22 W/m·K12.7 BTU/hr·ft·°F
24 W/m·K13.9 BTU/hr·ft·°F

Specific Heat Capacity

480 J/kg·K0.11 BTU/lb·°F
470 J/kg·K0.11 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

11.8 µm/m·K6.6 µin/in·°F
11.5 µm/m·K6.4 µin/in·°F

Latent Heat of Fusion

250 J/g107 BTU/lb
260 J/g112 BTU/lb

Max Service Temperature (continuous)

200°C392 °F
180°C356 °F

Same in both: Min Service Temperature -60°C-76 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

3.6 % IACS
3.1 % IACS

Electrical Resistivity

4.8×10⁻⁷ Ω·m18.9 µΩ·in
5.5×10⁻⁷ Ω·m21.7 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.65 V
—

Corrosion Resistance

25 / 100
18 / 100

Manufacturability

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

Machinability

35 / 100
45 / 100

Machinability Rating (AISI 1212 = 100 %)

40%
45%

Weldability

25 / 100
35 / 100

Formability (cold)

30 / 100
45 / 100

Brazeability / Solderability

35 / 100
30 / 100

Same in both: Polishability 40 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

40 MJ/kg17,197 BTU/lb
32 MJ/kg13,758 BTU/lb

Embodied Carbon (primary production)

2.9 kg CO₂/kg
2.4 kg CO₂/kg

Embodied Water

70 L/kg8.4 gal/lb
45 L/kg5.4 gal/lb

Same in both: Typical Recycled Content 15%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

46 kN·m/kg
63 kN·m/kg

Specific Stiffness (E / density)

15.7 MN·m/kg
25.5 MN·m/kg

Modulus of Resilience

413 kJ/m³
332 kJ/m³

Thermal Diffusivity

6 mm²/s
6.7 mm²/s

Same in both: Thermal Shock Resistance Index 5

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 scale35W25023QG090

Manufacturing and finishing

Capability23QG09035W250
Sheet metal—Yes
Default condition—Final Annealed
Relative cost$$ Standard$$ Standard
Min. machined wall——
Best machined surface——
Black Oxide—Yes
Cerakote—Yes
Chrome Plating—Yes
E-Coating—Yes
Hot-Dip Galvanizing—Yes
Nickel Plating—Yes
PTFE Coating—Yes
Painting—Yes
Powder Coating—Yes
Tin Plating—Yes
Zinc Plating—Yes
Zinc-Flake (Dip-Spin) Coating—Yes
Zinc-Nickel Plating—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.

23QG090 vs 35W250 — frequently asked

Is 35W250 stronger than 23QG090?

Yes. 35W250 has a typical yield strength of 360 MPa (52.2 ksi) against 315 MPa (45.7 ksi) for 23QG090 — about 14% more. Tensile strength is 480 MPa (69.6 ksi) vs 350 MPa (50.8 ksi).

Which is cheaper, 23QG090 or 35W250?

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

Which is easier to machine, 23QG090 or 35W250?

35W250, by a small margin. Both rate fair for machinability — 45/100 against 35/100 for 23QG090; for welding the order is 35W250 first (fair, 35/100) then 23QG090 (poor, 25/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 23QG090 and 35W250 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.