Home / Materials / MOC comparator Material (MOC) comparator
Compare up to four materials of construction (MOC) side by side — chemical composition, tensile and yield strength, elongation,
hardness, PREN and density — for stainless, duplex, carbon, alloy, nickel, titanium and copper-nickel grades.
Material 1SS 304 SS 304L SS 316 SS 316L SS 321 SS 347 SS 310S 904L 254 SMO (6Mo) Duplex S31803 Duplex 2205 (S32205) Super duplex 2507 Super duplex S32760 Carbon steel A105 Carbon steel A106 Gr B Carbon steel A234 WPB Low-temp CS A350 LF2 Alloy steel F11 Cl 2 Alloy steel F22 Cl 3 Alloy steel F91 Alloy 400 (Monel) Alloy 600 (Inconel) Alloy 625 (Inconel) Alloy 825 (Incoloy) Alloy C-276 (Hastelloy) Alloy 20 Titanium Gr 2 Titanium Gr 5 Cu-Ni 90/10 Cu-Ni 70/30
Material 2SS 304 SS 304L SS 316 SS 316L SS 321 SS 347 SS 310S 904L 254 SMO (6Mo) Duplex S31803 Duplex 2205 (S32205) Super duplex 2507 Super duplex S32760 Carbon steel A105 Carbon steel A106 Gr B Carbon steel A234 WPB Low-temp CS A350 LF2 Alloy steel F11 Cl 2 Alloy steel F22 Cl 3 Alloy steel F91 Alloy 400 (Monel) Alloy 600 (Inconel) Alloy 625 (Inconel) Alloy 825 (Incoloy) Alloy C-276 (Hastelloy) Alloy 20 Titanium Gr 2 Titanium Gr 5 Cu-Ni 90/10 Cu-Ni 70/30
Material 3— none — SS 304 SS 304L SS 316 SS 316L SS 321 SS 347 SS 310S 904L 254 SMO (6Mo) Duplex S31803 Duplex 2205 (S32205) Super duplex 2507 Super duplex S32760 Carbon steel A105 Carbon steel A106 Gr B Carbon steel A234 WPB Low-temp CS A350 LF2 Alloy steel F11 Cl 2 Alloy steel F22 Cl 3 Alloy steel F91 Alloy 400 (Monel) Alloy 600 (Inconel) Alloy 625 (Inconel) Alloy 825 (Incoloy) Alloy C-276 (Hastelloy) Alloy 20 Titanium Gr 2 Titanium Gr 5 Cu-Ni 90/10 Cu-Ni 70/30
Material 4— none — SS 304 SS 304L SS 316 SS 316L SS 321 SS 347 SS 310S 904L 254 SMO (6Mo) Duplex S31803 Duplex 2205 (S32205) Super duplex 2507 Super duplex S32760 Carbon steel A105 Carbon steel A106 Gr B Carbon steel A234 WPB Low-temp CS A350 LF2 Alloy steel F11 Cl 2 Alloy steel F22 Cl 3 Alloy steel F91 Alloy 400 (Monel) Alloy 600 (Inconel) Alloy 625 (Inconel) Alloy 825 (Incoloy) Alloy C-276 (Hastelloy) Alloy 20 Titanium Gr 2 Titanium Gr 5 Cu-Ni 90/10 Cu-Ni 70/30
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Single values are maximums; ranges are min–max; "bal" = balance. Limits are typical of the basis specification for that product form — forgings, pipe and fittings specifications differ slightly. Always check the exact specification, edition and the mill test certificate.
Popular comparisons SS 304L vs SS 316L SS 316L vs Duplex 2205 (S32205) Duplex 2205 (S32205) vs Super duplex 2507 SS 316L vs 904L 904L vs 254 SMO (6Mo) SS 321 vs SS 347 Duplex S31803 vs Duplex 2205 (S32205) Carbon steel A105 vs Low-temp CS A350 LF2 Alloy steel F11 Cl 2 vs Alloy steel F22 Cl 3 Alloy steel F22 Cl 3 vs Alloy steel F91 Alloy 600 (Inconel) vs Alloy 625 (Inconel) Alloy 625 (Inconel) vs Alloy C-276 (Hastelloy) Alloy 400 (Monel) vs Cu-Ni 70/30 Cu-Ni 90/10 vs Cu-Ni 70/30 Titanium Gr 2 vs Titanium Gr 5 SS 304 vs SS 304L SS 316 vs SS 316L Super duplex 2507 vs Super duplex S32760
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Frequently asked questions What does MOC mean? Material of construction — the material specified for a piping component, e.g. SS 316L or A105.
Which is stronger, 316L or duplex 2205? Duplex 2205 has a minimum yield strength of 450 MPa versus 170 MPa for 316L — more than 2.5 times higher.
What is PREN? Pitting resistance equivalent number = %Cr + 3.3×%Mo + 16×%N. Higher PREN means better resistance to chloride pitting.
Last updated 2026-11-02