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EN 1.4303 Stainless Steel vs. S44330 Stainless Steel

Both EN 1.4303 stainless steel and S44330 stainless steel are iron alloys. They have 87% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4303 stainless steel and the bottom bar is S44330 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 13 to 49
25
Fatigue Strength, MPa 220 to 320
160
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
78
Shear Strength, MPa 420 to 540
280
Tensile Strength: Ultimate (UTS), MPa 590 to 900
440
Tensile Strength: Yield (Proof), MPa 230 to 560
230

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 410
560
Maximum Temperature: Mechanical, °C 940
990
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 17
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.2
2.8
Embodied Energy, MJ/kg 46
40
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 19
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 230
91
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 800
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 32
16
Strength to Weight: Bending, points 20 to 26
17
Thermal Diffusivity, mm2/s 4.0
5.7
Thermal Shock Resistance, points 13 to 20
16

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.025
Chromium (Cr), % 17 to 19
20 to 23
Copper (Cu), % 0
0.3 to 0.8
Iron (Fe), % 64.8 to 72
72.5 to 79.7
Manganese (Mn), % 0 to 2.0
0 to 1.0
Nickel (Ni), % 11 to 13
0
Niobium (Nb), % 0
0 to 0.8
Nitrogen (N), % 0 to 0.1
0 to 0.025
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0
0 to 0.8