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SAE-AISI 1008 (G10080) Carbon Steel

SAE-AISI 1008 steel is a carbon (non-alloy) steel formulated for primary forming into wrought products. 1008 is the designation in both the SAE and AISI systems for this material. G10080 is the UNS number.

It has the highest thermal conductivity among wrought carbon or non-alloy steels. In addition, it has a fairly low electrical conductivity and can have a fairly low tensile strength.

The properties of SAE-AISI 1008 steel include two common variations. This page shows summary ranges across both of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare SAE-AISI 1008 steel to: wrought carbon or non-alloy steels (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Brinell Hardness

93 to 100

Elastic (Young's, Tensile) Modulus

190 GPa 27 x 106 psi

Elongation at Break

22 to 33 %

Fatigue Strength

150 to 220 MPa 21 to 32 x 103 psi

Poisson's Ratio

0.29

Reduction in Area

50 to 63 %

Shear Modulus

73 GPa 11 x 106 psi

Shear Strength

220 to 230 MPa 31 to 34 x 103 psi

Tensile Strength: Ultimate (UTS)

330 to 370 MPa 47 to 54 x 103 psi

Tensile Strength: Yield (Proof)

190 to 310 MPa 27 to 45 x 103 psi

Thermal Properties

Latent Heat of Fusion

250 J/g

Maximum Temperature: Mechanical

400 °C 750 °F

Melting Completion (Liquidus)

1470 °C 2670 °F

Melting Onset (Solidus)

1430 °C 2600 °F

Specific Heat Capacity

470 J/kg-K 0.11 BTU/lb-°F

Thermal Conductivity

62 W/m-K 36 BTU/h-ft-°F

Thermal Expansion

12 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

6.9 % IACS

Electrical Conductivity: Equal Weight (Specific)

7.9 % IACS

Otherwise Unclassified Properties

Base Metal Price

1.8 % relative

Density

7.9 g/cm3 490 lb/ft3

Embodied Carbon

1.4 kg CO2/kg material

Embodied Energy

18 MJ/kg 7.8 x 103 BTU/lb

Embodied Water

45 L/kg 5.4 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

78 to 91 MJ/m3

Resilience: Unit (Modulus of Resilience)

92 to 260 kJ/m3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

24 points

Strength to Weight: Axial

12 to 13 points

Strength to Weight: Bending

13 to 15 points

Thermal Diffusivity

17 mm2/s

Thermal Shock Resistance

10 to 12 points

Alloy Composition

Iron (Fe) 99.31 to 99.7
Manganese (Mn) 0.3 to 0.5
Carbon (C) 0 to 0.1
Sulfur (S) 0 to 0.050
Phosphorus (P) 0 to 0.040

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Similar Alloys

Further Reading

ASTM A29: Standard Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for

Carbon Steel Handbook, D. Gandy, 2007

ASM Specialty Handbook: Carbon and Alloy Steels, J. R. Davis (editor), 1996

Ferrous Materials: Steel and Cast Iron, Hans Berns and Werner Theisen, 2008

CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015

Steels: Processing, Structure, and Performance, 2nd ed., George Krauss, 2015