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EN 1.4749 Stainless Steel vs. AISI 302 Stainless Steel

Both EN 1.4749 stainless steel and AISI 302 stainless steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4749 stainless steel and the bottom bar is AISI 302 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
170 to 440
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 16
4.5 to 46
Fatigue Strength, MPa 190
210 to 520
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
77
Shear Strength, MPa 370
400 to 830
Tensile Strength: Ultimate (UTS), MPa 600
580 to 1430
Tensile Strength: Yield (Proof), MPa 320
230 to 1100

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 1100
710
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 17
16
Thermal Expansion, µm/m-K 9.6
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 13
15
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.5
3.0
Embodied Energy, MJ/kg 36
42
Embodied Water, L/kg 160
140

Common Calculations

PREN (Pitting Resistance) 31
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
59 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 250
140 to 3070
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 22
21 to 51
Strength to Weight: Bending, points 21
20 to 36
Thermal Diffusivity, mm2/s 4.6
4.4
Thermal Shock Resistance, points 22
12 to 31

Alloy Composition

Carbon (C), % 0.15 to 0.2
0 to 0.15
Chromium (Cr), % 26 to 29
17 to 19
Iron (Fe), % 68.5 to 73.7
67.9 to 75
Manganese (Mn), % 0 to 1.0
0 to 2.0
Nickel (Ni), % 0
8.0 to 10
Nitrogen (N), % 0.15 to 0.25
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030