UNS S44735 (29-4C) Stainless Steel
Ferritic Stainless Steels
Property Overview
Density7.7g/cm³
Elastic Modulus210GPa
Tensile Strength630MPa
Yield Strength460MPa
Brinell Hardness220HB
Maximum Service Temperature1100°C
Chemical Composition
C
0 to 0.030%
CR
28 to 30%
NI
0 to 1.0%
MO
3.6 to 4.2%
MN
0 to 1.0%
SI
0 to 1.0%
N
0 to 0.045%
P
0 to 0.040%
S
0 to 0.030%
NB
0.2 to 1.0%
TI
0.2 to 1.0%
FE
60.7 to 68.4%
Mechanical
Elastic (Young's, Tensile) Modulus
210 GPa
Elongation at Break
21 %
Fatigue Strength
300 MPa
Poisson's Ratio
0.27
Shear Modulus
82 GPa
Shear Strength
390 MPa
Tensile Strength: Ultimate (UTS)
630 MPa
Tensile Strength: Yield (Proof)
460 MPa
Hardness
Brinell Hardness
220
Rockwell C Hardness
22
Physical
Density
7.7 g/cm 3
Thermal
Latent Heat of Fusion
310 J/g
Maximum Temperature: Corrosion
650 °C
Maximum Temperature: Mechanical
1100 °C
Melting Completion (Liquidus)
1460 °C
Melting Onset (Solidus)
1420 °C
Specific Heat Capacity
480 J/kg-K
Thermal Expansion
11 µm/m-K
Thermal Shock Resistance
20 points
Calculated
PREN (Pitting Resistance)
42
Resilience: Ultimate (Unit Rupture Work)
120 MJ/m 3
Resilience: Unit (Modulus of Resilience)
520 kJ/m 3
Stiffness to Weight: Axial
15 points
Stiffness to Weight: Bending
26 points
Strength to Weight: Axial
23 points
Strength to Weight: Bending
21 points
Environmental
Base Metal Price
21 % relative
Embodied Carbon
4.4 kg CO 2 /kg material
Embodied Energy
61 MJ/kg
Embodied Energy
61 MJ/kg 26 x 10 3 BTU/lb
Embodied Water
180 L/kg
Embodied Water
180 L/kg 22 gal/lb
Registered Designations & Aliases
29-4CS44735UNS S44735 (29-4C) Stainless Steel
Standards
ASTM A240 ASTM A240: Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
ASTM A959 ASTM A959: Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels