414 / 416 , Ground Floor, Maulana Azad Road,

Grant Road (East), Mumbai 400 004



Material Notes:

Alloy 416 is a martensitic, free-machining, chromium steel alloy that is generally considered to be the first free-machining stainless steel. It has the highest machinability of any stainless steel at about 85% of that of a free-machining carbon steel. Martensitic stainless steels were designed to be hardenable by heat treatment and also corrosion resistant.

Applications: Electrical motors ,Nuts and bolts , Pumps , Valves , Automatic screw machine parts , Washing machine components , Studs , Gears

Corrosion Resistance: High sulfur, free-machining grades like Alloy 416 are unsuitable for marine or other chloride exposure

UNS S41600, ASME SA194, ASTM A194, ASTM A314, ASTM A473, ASTM A581, ASTM A582, FED QQ-W-423, MIL SPEC MIL-S-862, SAE J405(51416), DIN 1.4005, UNI X 12 CrS 13, B.S. 416 S 21, martensitic, ISO 683/13 7

Chemical Composition Limits
Weight% C P Si Mn S Cr Fe Se
Alloy 416 Type 1 0.15 max 0.060 max 1 max 1.25 max 0.40 max 11.50-13.50 bal 0.18-0.35
Alloy 416 Type 2 0.15 max 0.060 max 1 max 2.50 max 0.40 max 11.50-13.50 bal -


Typical Mechanical Properties
Material Tempering Temp °F (°C)
0.2 % Yield Strength (Mpa) Tensile Strength (Mpa) % Elongation in 2" % Reduction of Area Hardness Brinell
Alloy 416 1" round bar, hardened 1800 °F (982°C) oil quench, tempered one hour 300 (149) 1034 1344 10 40 390
Alloy 416 1" round bar, hardened 1800 °F (982°C) oil quench, tempered one hour 500 (260) 979 1276 13 45 375
Alloy 416 1" round bar, hardened 1800 °F (982°C) oil quench, tempered one hour 700 (371) 1007 1310 13 48 390
Alloy 416 1" round bar, hardened 1800 °F (982°C) oil quench, tempered one hour 900 (482) 896 1158 14 50 341
Alloy 416 1" round bar, hardened 1800 °F (982°C) oil quench, tempered one hour 1000 (538) 793 1000 15 50 300
Alloy 416 1" round bar, hardened 1800 °F (982°C) oil quench, tempered one hours 1100 (593) 689 862 17 53 262
Alloy 416 1" round bar, hardened 1800 °F (982°C) oil quench, tempered one hours 1200 (650) 586 758 18 55 225