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Steel 1008 vs 1023

Steel · grade comparison

Steel 1008 and 1023 are both steel grades. 1023 is the stronger of the two: yield strength 395 MPa (57.3 ksi) against 175 MPa (25.4 ksi) for 1008, about 126% more; tensile strength follows at 470 MPa (68.2 ksi) vs 300 MPa (43.5 ksi). In exchange, 1008 is the more ductile: elongation 30% versus 15% for 1023, and 1023 is harder (137 HB vs 86 HB). 1008 conducts heat better (60 W/m·K vs 51.9 W/m·K).

1008Choose it when the part is bent, formed or impact-loaded.

1023Choose it when strength drives the design.

1008 vs 1023: properties

10081023

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

300 MPa43.5 ksi
470 MPa68.2 ksi

Yield Strength (0.2% offset)

175 MPa25.4 ksi
395 MPa57.3 ksi

Elongation at Break

30%
15%

Reduction in Area

55%
40%

Shear Strength

185 MPa26.8 ksi
320 MPa46.4 ksi

Fatigue Strength (Endurance Limit)

150 MPa21.8 ksi
230 MPa33.4 ksi

Charpy V-Notch Impact (RT)

90 J66.4 ft·lbf
45 J33.2 ft·lbf

Hardness, Brinell

86 HB
137 HB

Hardness, Rockwell B

45 HRB
75 HRB

Compressive Strength

—
395 MPa57.3 ksi

Fracture Toughness (K_IC)

—
110 MPa·√m100 ksi·√in

Hardness, Vickers

—
144 HV

Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Density

7.87 g/cm³0.28 lb/in³
7.86 g/cm³0.28 lb/in³

Melting Point (Solidus)

1,495°C2,723 °F
1,425°C2,597 °F

Liquidus Temperature

1,530°C2,786 °F
1,515°C2,759 °F

Thermal

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

Thermal Conductivity

60 W/m·K34.7 BTU/hr·ft·°F
51.9 W/m·K30 BTU/hr·ft·°F

Specific Heat Capacity

481 J/kg·K0.11 BTU/lb·°F
486 J/kg·K0.12 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

12.2 µm/m·K6.8 µin/in·°F
11.7 µm/m·K6.5 µin/in·°F

Max Service Temperature (continuous)

425°C797 °F
400°C752 °F

Same in both: Latent Heat of Fusion 247 J/g106 BTU/lb · Min Service Temperature -30°C-22 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

11.5 % IACS
10.8 % IACS

Electrical Resistivity

1.5×10⁻⁷ Ω·m5.91 µΩ·in
1.6×10⁻⁷ Ω·m6.3 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.65 V
-0.61 V

Same in both: Corrosion Resistance 10 / 100

Manufacturability

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

Machinability

48 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

45%
65%

Weldability

95 / 100
90 / 100

Formability (cold)

85 / 100
60 / 100

Polishability

50 / 100
55 / 100

Castability

—
40 / 100

Same in both: Brazeability / Solderability 80 / 100

Sustainability

Primary-production footprint per kilogram.

Typical Recycled Content

25%
30%

Same in both: Embodied Energy (primary production) 25 MJ/kg10,748 BTU/lb · Embodied Carbon (primary production) 1.9 kg CO₂/kg · Embodied Water 40 L/kg4.8 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

38 kN·m/kg
60 kN·m/kg

Modulus of Resilience

77 kJ/m³
390 kJ/m³

Thermal Diffusivity

15.9 mm²/s
13.6 mm²/s

Thermal Shock Resistance Index

7
10

Same in both: Specific Stiffness (E / density) 25.4 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 scale10081023

Manufacturing and finishing

Capability10081023
Sheet metalYes—
Default conditionHR—
Relative cost$ Budget$ Budget
Min. machined wall——
Best machined surface——
Black OxideYes—
CerakoteYes—
Chrome PlatingYes—
E-CoatingYes—
Hot-Dip GalvanizingYes—
Nickel PlatingYes—
PTFE CoatingYes—
PaintingYes—
Powder CoatingYes—
Tin PlatingYes—
Zinc PlatingYes—
Zinc-Flake (Dip-Spin) CoatingYes—
Zinc-Nickel PlatingYes—

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

1008 vs 1023 — frequently asked

Is 1023 stronger than 1008?

Yes. 1023 has a typical yield strength of 395 MPa (57.3 ksi) against 175 MPa (25.4 ksi) for 1008 — about 126% more. Tensile strength is 470 MPa (68.2 ksi) vs 300 MPa (43.5 ksi).

Which is cheaper, 1008 or 1023?

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

Which is easier to machine, 1008 or 1023?

1023. Its machinability rates good (55/100) against fair (48/100) for 1008; for welding the order is 1008 first (excellent, 95/100) then 1023 (excellent, 90/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1008 and 1023 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.