UNS S41003 (3CR12) Stainless Steel
Martensitic Stainless Steels
Property Overview
Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength520MPa
Yield Strength310MPa
Brinell Hardness200HB
Maximum Service Temperature720°C
Chemical Composition
C
0 to 0.030%
CR
10.5 to 12.5%
NI
0 to 1.5%
MN
0 to 1.5%
SI
0 to 1.0%
N
0 to 0.030%
P
0 to 0.040%
S
0 to 0.030%
FE
83.4 to 89.5%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
21 %
Fatigue Strength
200 MPa
Poisson's Ratio
0.28
Shear Modulus
76 GPa
Shear Strength
320 MPa
Tensile Strength: Ultimate (UTS)
520 MPa
Tensile Strength: Yield (Proof)
310 MPa
Hardness
Brinell Hardness
200
Rockwell C Hardness
17
Physical
Density
7.8 g/cm 3
Thermal
Latent Heat of Fusion
270 J/g
Maximum Temperature: Corrosion
390 °C
Maximum Temperature: Mechanical
720 °C
Melting Completion (Liquidus)
1440 °C
Melting Onset (Solidus)
1400 °C
Specific Heat Capacity
480 J/kg-K
Thermal Conductivity
27 W/m-K
Thermal Diffusivity
7.2 mm 2 /s
Thermal Expansion
10 µm/m-K
Thermal Shock Resistance
19 points
Electrical
Electrical Conductivity: Equal Volume
2.9 % IACS
Electrical Conductivity: Equal Weight (Specific)
3.3 % IACS
Calculated
PREN (Pitting Resistance)
12
Resilience: Ultimate (Unit Rupture Work)
92 MJ/m 3
Resilience: Unit (Modulus of Resilience)
240 kJ/m 3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
19 points
Strength to Weight: Bending
18 points
Environmental
Base Metal Price
7.0 % relative
Embodied Carbon
1.9 kg CO 2 /kg material
Embodied Energy
27 MJ/kg
Embodied Energy
27 MJ/kg 12 x 10 3 BTU/lb
Embodied Water
97 L/kg
Embodied Water
97 L/kg 12 gal/lb
Registered Designations & Aliases
3CR12S41003UNS S41003 (3CR12) 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