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Steel 1006 vs 1008

Steel · grade comparison

Steel 1006 and 1008 are both steel grades, both low carbon steel. Both yield at about 170 MPa — strength does not separate them. 1008 is harder — 45 HRB against 41 HRB for 1006 — which matters for wear surfaces and threads. On the shop floor, 1006 forms better (95 vs 85 out of 100).

1008Choose it when surface hardness matters.

1006 vs 1008: properties

10061008

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

205 GPa29.7 Msi
200 GPa29 Msi

Yield Strength (0.2% offset)

170 MPa24.7 ksi
175 MPa25.4 ksi

Shear Strength

200 MPa29 ksi
185 MPa26.8 ksi

Fracture Toughness (K_IC)

130 MPa·√m118 ksi·√in
—

Charpy V-Notch Impact (RT)

120 J88.5 ft·lbf
90 J66.4 ft·lbf

Hardness, Rockwell B

41 HRB
45 HRB

Hardness, Vickers

90 HV
—

Same in both: Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Tensile Strength (Ultimate) 300 MPa43.5 ksi · Elongation at Break 30% · Reduction in Area 55% · Fatigue Strength (Endurance Limit) 150 MPa21.8 ksi · Hardness, Brinell 86 HB

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,515°C2,759 °F
1,495°C2,723 °F

Liquidus Temperature

1,535°C2,795 °F
1,530°C2,786 °F

Same in both: Density 7.87 g/cm³0.28 lb/in³

Thermal

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

Thermal Conductivity

65 W/m·K37.6 BTU/hr·ft·°F
60 W/m·K34.7 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

12 µm/m·K6.7 µin/in·°F
12.2 µm/m·K6.8 µin/in·°F

Max Service Temperature (continuous)

400°C752 °F
425°C797 °F

Same in both: Specific Heat Capacity 481 J/kg·K0.11 BTU/lb·°F · Latent Heat of Fusion 247 J/g106 BTU/lb · Min Service Temperature -30°C-22 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

12 % IACS
11.5 % IACS

Electrical Resistivity

1.43×10⁻⁷ Ω·m5.63 µΩ·in
1.5×10⁻⁷ Ω·m5.91 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.65 V · Corrosion Resistance 10 / 100

Manufacturability

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

Machinability

45 / 100
48 / 100

Machinability Rating (AISI 1212 = 100 %)

50%
45%

Weldability

97 / 100
95 / 100

Formability (cold)

95 / 100
85 / 100

Castability

35 / 100
—

Polishability

45 / 100
50 / 100

Same in both: Brazeability / Solderability 80 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

2.1 kg CO₂/kg
1.9 kg CO₂/kg

Embodied Water

55 L/kg6.6 gal/lb
40 L/kg4.8 gal/lb

Typical Recycled Content

28%
25%

Same in both: Embodied Energy (primary production) 25 MJ/kg10,748 BTU/lb

Common Calculations

Ratios derived from the values above.

Specific Stiffness (E / density)

26 MN·m/kg
25.4 MN·m/kg

Modulus of Resilience

70 kJ/m³
77 kJ/m³

Thermal Diffusivity

17.2 mm²/s
15.9 mm²/s

Thermal Shock Resistance Index

8
7

Same in both: Specific Strength (UTS / density) 38 kN·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 scale10061008

Manufacturing and finishing

Capability10061008
Default conditionHRHR
Relative cost$ Budget$ Budget
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.

1006 vs 1008 — frequently asked

What is the difference between 1006 and 1008?

Steel 1006 and 1008 are both steel grades, both low carbon steel. Both yield at about 170 MPa — strength does not separate them. 1008 is harder — 45 HRB against 41 HRB for 1006 — which matters for wear surfaces and threads.

Which is cheaper, 1006 or 1008?

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.

When should I choose 1006 over 1008?

Pick 1008 when surface hardness matters.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1006 and 1008 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.