AISI 416

AISI 416

AISI 416

Grade 416 steel is a free-machining stainless steel with a machinability of 85%, highest of all stainless steels. With most of the free-machining stainless steels, the machinability can be improved by adding sulphur, which leads to the formation of manganese sulphide inclusions. Addition of sulphur also reduces the formability, weldability and corrosion resistance of 416 steels to below that of grade 410. Because of their high machinability and low cost, grade 416 steels are available in highly tempered, hardened or unhardened forms. Martensitic steels with high hardness are manufactured using methods that require final hardening and tempering treatments. The corrosion resistance of these steels is lower than that of austenitic steels. Decrease in the ductility of martensitic steels at sub-zero temperatures, and strength at high temperatures due to over-tempering, are the two key factors that affect their operating temperatures.

Chemical Composition

Element Content(%)
Molybdenum, M 0.6
Chromium, Cr 12 - 14
Manganese, Mn 1.25
Silicon, Si 1
Carbon, C 0.15
Phosphorous, P 0.06
Sulfur, S 0.15 min

Mechanical Properties

Properties Metric
Tempering Temperature (°C) Annealed *
Tensile Strength (MPa) 517
Yield Strength 0.2% Proof (MPa) 275
Elongation (% in 50 mm) 30
Hardness Brinell (HB) 262
Impact Charpy V (J) -

* Annealed properties are typical for Condition A of ASTM A582.

Sheets / Plates

Production Route Hot Rolled, Cold Rolled
Material Standard AISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, IS & Custom Chemistry
Size Width from 100mm to 3000mm ; Length from 500mm to 12000mm
Thickness 0.1mm to 400mm
Delivery Condition As Rolled, Annealed, Quenched and Tempered, Normalized
Surface Finish Plain, Brushed, Cladded

AISI 416 Applications

1) Structures in Buildings, bridges, railway stations.

2) Fabrication of pipeline components & Industrial equipment.

3) Construction of automotive bodies, warehouses, shipping containers.

4) Commercial appliances, etc.