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Steel 1.0031 vs 1006

Steel · grade comparison

Steel 1.0031 and 1006 are both steel grades. 1.0031 is the stronger of the two: yield strength 190 MPa (27.6 ksi) against 170 MPa (24.7 ksi) for 1006, about 12% more. 1.0031 is harder — 95 HV against 90 HV for 1006 — which matters for wear surfaces and threads. 1006 runs hotter in service (400°C vs 350°C continuous) and 1006 conducts heat better (65 W/m·K vs 52 W/m·K). On the shop floor, 1.0031 machines more easily (good vs fair) and 1006 forms better (95 vs 85 out of 100).

1.0031Choose it when strength drives the design, or when surface hardness matters.

1006Choose it when the part sees heat.

1.0031 vs 1006: properties

1.00311006

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

210 GPa30.5 Msi
205 GPa29.7 Msi

Shear Modulus

81 GPa11.7 Msi
80 GPa11.6 Msi

Yield Strength (0.2% offset)

190 MPa27.6 ksi
170 MPa24.7 ksi

Elongation at Break

33%
30%

Reduction in Area

58%
55%

Compressive Strength

190 MPa27.6 ksi
—

Fatigue Strength (Endurance Limit)

145 MPa21 ksi
150 MPa21.8 ksi

Fracture Toughness (K_IC)

100 MPa·√m91 ksi·√in
130 MPa·√m118 ksi·√in

Charpy V-Notch Impact (RT)

55 J40.6 ft·lbf
120 J88.5 ft·lbf

Hardness, Brinell

90 HB
86 HB

Hardness, Rockwell B

50 HRB
41 HRB

Hardness, Vickers

95 HV
90 HV

Same in both: Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Tensile Strength (Ultimate) 300 MPa43.5 ksi · Shear Strength 200 MPa29 ksi

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

1,465°C2,669 °F
1,515°C2,759 °F

Liquidus Temperature

1,520°C2,768 °F
1,535°C2,795 °F

Thermal

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

Thermal Conductivity

52 W/m·K30 BTU/hr·ft·°F
65 W/m·K37.6 BTU/hr·ft·°F

Specific Heat Capacity

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

Latent Heat of Fusion

250 J/g107 BTU/lb
247 J/g106 BTU/lb

Max Service Temperature (continuous)

350°C662 °F
400°C752 °F

Min Service Temperature

-10°C14 °F
-30°C-22 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 12 µm/m·K6.7 µin/in·°F

Electrical

Conductivity and insulation.

Electrical Conductivity

11.5 % IACS
12 % IACS

Electrical Resistivity

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

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.61 V
-0.65 V

Same in both: Corrosion Resistance 10 / 100

Manufacturability

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

Machinability

58 / 100
45 / 100

Machinability Rating (AISI 1212 = 100 %)

55%
50%

Weldability

95 / 100
97 / 100

Formability (cold)

85 / 100
95 / 100

Brazeability / Solderability

75 / 100
80 / 100

Castability

—
35 / 100

Same in both: Polishability 45 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

2 kg CO₂/kg
2.1 kg CO₂/kg

Embodied Water

60 L/kg7.2 gal/lb
55 L/kg6.6 gal/lb

Typical Recycled Content

30%
28%

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)

26.8 MN·m/kg
26 MN·m/kg

Modulus of Resilience

86 kJ/m³
70 kJ/m³

Thermal Diffusivity

14.1 mm²/s
17.2 mm²/s

Thermal Shock Resistance Index

6
8

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 scale10061.0031

Manufacturing and finishing

Capability1.00311006
Sheet metal—Yes
Default condition—HR
Relative cost$ Budget$ Budget
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.

1.0031 vs 1006 — frequently asked

Is 1.0031 stronger than 1006?

Yes. 1.0031 has a typical yield strength of 190 MPa (27.6 ksi) against 170 MPa (24.7 ksi) for 1006 — about 12% more. Tensile strength is 300 MPa (43.5 ksi) vs 300 MPa (43.5 ksi).

Which is cheaper, 1.0031 or 1006?

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, 1.0031 or 1006?

1.0031. Its machinability rates good (58/100) against fair (45/100) for 1006.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1.0031 and 1006 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.