SAE-AISI 1213 (G12130) Carbon Steel
SAE-AISI 1213 steel is a resulfurized carbon steel formulated for primary forming into wrought products. 1213 is the designation in both the SAE and AISI systems for this material. G12130 is the UNS number.
The properties of SAE-AISI 1213 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 1213 steel to: wrought resulfurized carbon 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
140 to 190
Elastic (Young's, Tensile) Modulus
190 GPa 27 x 106 psi
Elongation at Break
11 to 29 %
Fatigue Strength
200 to 290 MPa 28 to 42 x 103 psi
Poisson's Ratio
0.29
Reduction in Area
40 to 50 %
Shear Modulus
73 GPa 11 x 106 psi
Shear Strength
290 to 360 MPa 42 to 53 x 103 psi
Tensile Strength: Ultimate (UTS)
440 to 600 MPa 64 to 88 x 103 psi
Tensile Strength: Yield (Proof)
260 to 470 MPa 37 to 68 x 103 psi
Thermal Properties
Latent Heat of Fusion
250 J/g
Maximum Temperature: Mechanical
400 °C 750 °F
Melting Completion (Liquidus)
1460 °C 2660 °F
Melting Onset (Solidus)
1420 °C 2590 °F
Specific Heat Capacity
470 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
51 W/m-K 30 BTU/h-ft-°F
Thermal Expansion
12 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
7.0 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.1 % IACS
Otherwise Unclassified Properties
Base Metal Price
1.8 % relative
Density
7.8 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
46 L/kg 5.5 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
63 to 110 MJ/m3
Resilience: Unit (Modulus of Resilience)
180 to 580 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
16 to 21 points
Strength to Weight: Bending
17 to 20 points
Thermal Diffusivity
14 mm2/s
Thermal Shock Resistance
14 to 19 points
Alloy Composition
| Fe | 98.4 to 99 | |
| Mn | 0.7 to 1.0 | |
| S | 0.24 to 0.33 | |
| P | 0.070 to 0.12 | |
| C | 0 to 0.13 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
Cold-Formed Steel Structures to the AISI Specification, Gregory J. Hancock et al., 2001
ASTM A29: Standard Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for
Properties and Selection: Irons, Steels and High Performance Alloys, ASM Handbook vol. 1, ASM International, 1993
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