Type 410S (UNS S41008/1.4000)

Low carbon content reduces austenite formation to a minimum at elevated temperatures, restricting the ability to harden.
Soft and ductile even when cooled rapidly from critical temperature.
Cracking resistance when welded or exposed to elevated temperatures.
Good oxidation resistance and moderate corrosion resistance.

Description

Description

Overview:

Type 410S stainless steel is martensitic steel with low carbon content, which minimizes austenite formation at elevated temperatures. It is a non-heat treatable version of type 410 stainless steel, with good resistance to oxidation and moderate resistance to corrosion.

Due to its non-hardening characteristic, cracking is prevented when welded or exposed to high temperatures.

One advantage of type 410S is that it remains soft and ductile even when it is cooled fast from above than critical temperature.

Common Names:

Stainless steel type 410S is commonly known as Chromium steel.

Executive Standards/Grades:

JIS: SUS 410S
ASTM: A240
DIN: 1.4034
UNS: S41008
SUS: SUS410S

Chemical Properties:

Type 410S stainless steel has the following chemical composition:

Carbon – 0.08%
Manganese – 1.00%
Chromium – 11.5-14.5%
Sulphur – 0.03%
Phosphorus – 0.04%
Silicon – 1.00%
Iron – 85%
Nickel – 0.6%

Mechanical Properties:

Hardness (HRB) – 75 (max)
Elongation (%) – 33
Yield Strength (Mpa) – 290
Tensile Strength (Mpa) – 444
Reduction area (%) – 65
Poisson’s Ratio – 0.27-0.30

Physical Properties:

Density (lb/in³) – 0.280
Elastic Modulus (GPa) – 210
Thermal Conductivity (Btu/ft hr ⁰ F) – 187 at 212^oF
Specific Heat (Btu/lb/°F) – 0.11 at 68°F to 212°F
Melting range: 2700 – 2790 ⁰ F
Electrical Resistivity – 23.7 at 68°F

Key Features:

Low carbon, non-heat-treatable version of Type 410, suitable for general purpose use
Good oxidation resistance and moderate corrosion resistance
Soft and ductile even when rapidly cooled from critical temperature
Cold worked by the most commonly used methods
Excellence resistance to stress corrosion cracking.
Excellent weldability by all standard methods
No hardening by heat treatment

Forms Available:

Stainless steel type 410S is available in different forms such as:

Sheet
Plate
Bar

Applications:

Because of its properties, stainless steel type 410S has a wide range of applications including:

Petroleum refining and petrochemical processing
Heat exchangers
Ore processing
Mining machinery
Thermal processing
Gate valves
Press valves

Possible Alternatives Grades:

Type 410S stainless steel has some possible alternatives that can be used. Such as:

410HT – Lower chromium content.
410 – Better mechanical properties.
420 – Higher carbon content.
440A – Higher chromium content, better corrosion resistance

FAQs:

What are the machinability characteristics of stainless steel type 410S?

Type 410S stainless steel provides the best results when machined in heat-treated and cold drawn conditions, but it can also be machined in the annealed condition.