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Steel 35W250 vs CRGO

Steel · grade comparison

Steel 35W250 and CRGO are both steel grades, both electrical steel. 35W250 is the stronger of the two: yield strength 360 MPa (52.2 ksi) against 305 MPa (44.2 ksi) for CRGO, about 18% more; tensile strength follows at 480 MPa (69.6 ksi) vs 345 MPa (50 ksi). 35W250 is the more ductile: elongation 12% versus 10% for CRGO, and 35W250 is harder (180 HB vs 170 HB). 35W250 is stiffer (195 GPa vs 125 GPa) and CRGO runs hotter in service (200°C vs 180°C continuous).

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

CRGOChoose it when the part sees heat.

35W250 vs CRGO: properties

35W250CRGO

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

195 GPa28.3 Msi
125 GPa18.1 Msi

Shear Modulus

76 GPa11 Msi
72 GPa10.4 Msi

Tensile Strength (Ultimate)

480 MPa69.6 ksi
345 MPa50 ksi

Yield Strength (0.2% offset)

360 MPa52.2 ksi
305 MPa44.2 ksi

Elongation at Break

12%
10%

Compressive Strength

360 MPa52.2 ksi
310 MPa45 ksi

Shear Strength

330 MPa47.9 ksi
230 MPa33.4 ksi

Fatigue Strength (Endurance Limit)

210 MPa30.5 ksi
170 MPa24.7 ksi

Charpy V-Notch Impact (RT)

5 J3.7 ft·lbf
6 J4.4 ft·lbf

Hardness, Brinell

180 HB
170 HB

Hardness, Rockwell B

82 HRB
87 HRB

Hardness, Vickers

190 HV
180 HV

Reduction in Area

—
25%

Fracture Toughness (K_IC)

—
30 MPa·√m27.3 ksi·√in

Same in both: Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.3

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,490°C2,714 °F
1,480°C2,696 °F

Liquidus Temperature

1,510°C2,750 °F
1,520°C2,768 °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

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

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

11.5 µm/m·K6.4 µin/in·°F
12 µm/m·K6.7 µin/in·°F

Latent Heat of Fusion

260 J/g112 BTU/lb
247 J/g106 BTU/lb

Max Service Temperature (continuous)

180°C356 °F
200°C392 °F

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

Electrical

Conductivity and insulation.

Electrical Conductivity

3.1 % IACS
3.6 % IACS

Electrical Resistivity

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

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

—
-0.6 V

Same in both: Corrosion Resistance 18 / 100

Manufacturability

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

Machinability Rating (AISI 1212 = 100 %)

45%
55%

Weldability

35 / 100
30 / 100

Formability (cold)

45 / 100
30 / 100

Brazeability / Solderability

30 / 100
40 / 100

Polishability

40 / 100
45 / 100

Same in both: Machinability 45 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

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

Embodied Carbon (primary production)

2.4 kg CO₂/kg
2.6 kg CO₂/kg

Same in both: Embodied Water 45 L/kg5.4 gal/lb · Typical Recycled Content 15%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

63 kN·m/kg
45 kN·m/kg

Specific Stiffness (E / density)

25.5 MN·m/kg
16.3 MN·m/kg

Modulus of Resilience

332 kJ/m³
372 kJ/m³

Thermal Diffusivity

6.7 mm²/s
6 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 scale35W250CRGO

Manufacturing and finishing

Capability35W250CRGO
Default conditionFinal AnnealedAnnealed
Relative cost$$ Standard$$ Standard
Min. machined wall——
Best machined surface——

Both are offered for Sheet metal. Both take the same 22 finishes: Black Oxide, Cerakote, Chrome Plating, Copper Plating, E-Coating, Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Hot-Dip Galvanizing, Manganese Phosphate, Nickel Plating and 10 more.

35W250 vs CRGO — frequently asked

Is 35W250 stronger than CRGO?

Yes. 35W250 has a typical yield strength of 360 MPa (52.2 ksi) against 305 MPa (44.2 ksi) for CRGO — about 18% more. Tensile strength is 480 MPa (69.6 ksi) vs 345 MPa (50 ksi).

Which is cheaper, 35W250 or CRGO?

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 welds better, 35W250 or CRGO?

35W250. Its weldability rates fair (35/100) against poor (30/100) for CRGO.

Ready to make it?

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