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AISI 334 Stainless Steel vs. EN 1.4309 Stainless Steel

Both AISI 334 stainless steel and EN 1.4309 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AISI 334 stainless steel and the bottom bar is EN 1.4309 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
34
Fatigue Strength, MPa 150
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 540
490
Tensile Strength: Yield (Proof), MPa 190
210

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 490
420
Maximum Temperature: Mechanical, °C 1000
960
Melting Completion (Liquidus), °C 1410
1420
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 22
16
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.1
3.1
Embodied Energy, MJ/kg 59
45
Embodied Water, L/kg 170
150

Common Calculations

PREN (Pitting Resistance) 19
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
140
Resilience: Unit (Modulus of Resilience), kJ/m3 96
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
18
Strength to Weight: Bending, points 19
18
Thermal Shock Resistance, points 12
11

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
0
Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 18 to 20
18 to 20
Iron (Fe), % 55.7 to 62.7
64.2 to 73
Manganese (Mn), % 0 to 1.0
0 to 2.0
Nickel (Ni), % 19 to 21
9.0 to 12
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.025
Titanium (Ti), % 0.15 to 0.6
0