MakeItFrom.com
Menu (ESC)

AISI 202 Stainless Steel vs. SAE-AISI 4340M Steel

Both AISI 202 stainless steel and SAE-AISI 4340M steel are iron alloys. They have 72% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AISI 202 stainless steel and the bottom bar is SAE-AISI 4340M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 300
710
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 45
6.0
Fatigue Strength, MPa 290 to 330
690
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Shear Strength, MPa 490 to 590
1360
Tensile Strength: Ultimate (UTS), MPa 700 to 980
2340
Tensile Strength: Yield (Proof), MPa 310 to 580
1240

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Mechanical, °C 910
430
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
38
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 13
3.9
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.9
Embodied Energy, MJ/kg 40
26
Embodied Water, L/kg 150
55

Common Calculations

PREN (Pitting Resistance) 20
2.2
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
120
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 840
4120
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25 to 35
84
Strength to Weight: Bending, points 23 to 29
51
Thermal Diffusivity, mm2/s 4.0
10
Thermal Shock Resistance, points 15 to 21
70

Alloy Composition

Carbon (C), % 0 to 0.15
0.38 to 0.43
Chromium (Cr), % 17 to 19
0.7 to 1.0
Iron (Fe), % 63.5 to 71.5
93.3 to 94.8
Manganese (Mn), % 7.5 to 10
0.65 to 0.9
Molybdenum (Mo), % 0
0.35 to 0.45
Nickel (Ni), % 4.0 to 6.0
1.7 to 2.0
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.060
0 to 0.012
Silicon (Si), % 0 to 1.0
1.5 to 1.8
Sulfur (S), % 0 to 0.030
0 to 0.012
Vanadium (V), % 0
0.050 to 0.1