MakeItFrom.com
Menu (ESC)
Home>Iron AlloyUp Three>Cast Precipitation-Hardening Stainless SteelUp Two>ACI-ASTM CB7Cu-2 SteelUp One

H1025 Hardened CB7Cu-2 Cast Stainless Steel

H1025 CB7Cu-2 is ACI-ASTM CB7Cu-2 steel in the hardened (H) condition. The graph bars on the material properties cards below compare H1025 CB7Cu-2 to: cast precipitation-hardening stainless 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

350

Elastic (Young's, Tensile) Modulus

190 GPa 28 x 106 psi

Elongation at Break

10 %

Fatigue Strength

590 MPa 85 x 103 psi

Poisson's Ratio

0.28

Shear Modulus

75 GPa 11 x 106 psi

Tensile Strength: Ultimate (UTS)

1160 MPa 170 x 103 psi

Tensile Strength: Yield (Proof)

1100 MPa 160 x 103 psi

Thermal Properties

Latent Heat of Fusion

280 J/g

Melting Completion (Liquidus)

1430 °C 2600 °F

Melting Onset (Solidus)

1380 °C 2520 °F

Specific Heat Capacity

480 J/kg-K 0.11 BTU/lb-°F

Thermal Conductivity

17 W/m-K 9.8 BTU/h-ft-°F

Thermal Expansion

11 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

2.1 % IACS

Electrical Conductivity: Equal Weight (Specific)

2.4 % IACS

Otherwise Unclassified Properties

Base Metal Price

13 % relative

Density

7.8 g/cm3 490 lb/ft3

Embodied Carbon

2.6 kg CO2/kg material

Embodied Energy

38 MJ/kg 16 x 103 BTU/lb

Embodied Water

130 L/kg 15 gal/lb

Common Calculations

PREN (Pitting Resistance)

15

Resilience: Ultimate (Unit Rupture Work)

120 MJ/m3

Resilience: Unit (Modulus of Resilience)

3130 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

25 points

Strength to Weight: Axial

41 points

Strength to Weight: Bending

31 points

Thermal Diffusivity

4.6 mm2/s

Thermal Shock Resistance

39 points

Alloy Composition

Iron (Fe)Fe 73.6 to 79
Chromium (Cr)Cr 14 to 15.5
Nickel (Ni)Ni 4.5 to 5.5
Copper (Cu)Cu 2.5 to 3.2
Silicon (Si)Si 0 to 1.0
Manganese (Mn)Mn 0 to 0.7
Niobium (Nb)Nb 0 to 0.35
Carbon (C)C 0 to 0.070
Nitrogen (N)N 0 to 0.050
Phosphorus (P)P 0 to 0.035
Sulfur (S)S 0 to 0.030

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

Followup Questions

How are the material properties defined?How do I compare this exact variant to another material?

Further Reading

ASTM A747: Standard Specification for Steel Castings, Stainless, Precipitation Hardening

Corrosion of Stainless Steels, A. John Sedriks, 1996

ASM Specialty Handbook: Stainless Steels, J. R. Davis (editor), 1994

Advances in Stainless Steels, Baldev Raj et al. (editors), 2010