ASTM Grade HP (26Cr-35Ni, N08705) Cast Stainless Steel
Austenitic & General Stainless Steels
Property Overview
Density7.9g/cm³
Elastic Modulus200GPa
Tensile Strength490MPa
Yield Strength260MPa
Brinell Hardness140HB
Maximum Service Temperature1100°C
Chemical Composition
C
0.35 to 0.75%
CR
24 to 28%
NI
33 to 37%
MO
0 to 0.5%
MN
0 to 2.0%
SI
0 to 2.5%
P
0 to 0.040%
S
0 to 0.040%
FE
29.2 to 42.7%
Mechanical
Elastic (Young's, Tensile) Modulus
200 GPa
Elongation at Break
5.1 %
Fatigue Strength
130 MPa
Poisson's Ratio
0.28
Shear Modulus
78 GPa
Tensile Strength: Ultimate (UTS)
490 MPa
Tensile Strength: Yield (Proof)
260 MPa
Hardness
Brinell Hardness
140
Physical
Density
7.9 g/cm 3
Thermal
Latent Heat of Fusion
320 J/g
Maximum Temperature: Corrosion
440 °C
Maximum Temperature: Mechanical
1100 °C
Melting Completion (Liquidus)
1370 °C
Melting Onset (Solidus)
1330 °C
Specific Heat Capacity
480 J/kg-K
Thermal Conductivity
12 W/m-K
Thermal Diffusivity
3.2 mm 2 /s
Thermal Expansion
16 µm/m-K
Thermal Shock Resistance
11 points
Calculated
PREN (Pitting Resistance)
27
Resilience: Ultimate (Unit Rupture Work)
21 MJ/m 3
Resilience: Unit (Modulus of Resilience)
170 kJ/m 3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
17 points
Strength to Weight: Bending
17 points
Environmental
Base Metal Price
34 % relative
Embodied Carbon
5.8 kg CO 2 /kg material
Embodied Energy
82 MJ/kg
Embodied Energy
82 MJ/kg 35 x 10 3 BTU/lb
Embodied Water
220 L/kg
Embodied Water
220 L/kg 27 gal/lb
Registered Designations & Aliases
26Cr-35NiASTM Grade HP (26Cr-35Ni, N08705) Cast Stainless SteelN08705
Standards
ASTM A297 ASTM A297: Standard Specification for Steel Castings, Iron-Chromium and Iron-Chromium-Nickel, Heat Resistant, for General Application
ASTM A297 ASTM A297: Standard Specification for Steel Castings, Iron-Chromium and Iron-Chromium-Nickel, Heat Resistant, for General Application Welding Metallurgy and Weldability of Stainless Steels, John C. Lippold and Damian J. Kotecki, 2005