ASTM A564 UNS S17400 Bolt, Nuts, Washers Manufacturer & Supplier in India

ASTM A564 UNS S17400, ASTM A564 UNS S17400 Bolt, Nuts, ASTM A564 UNS S17400 Bolt Manufacturer in India – Ananka Group

This is the specification for precipitation-hardening stainless steel, also known by the 17-4 PH (PH is the abbreviation for Precipitation Hardening). It has extensive usage for applications that require high strength, good corrosion resistance, and outstanding mechanical properties, particularly after heat treatment. It is a martensitic stainless steel, which acquires its strength through precipitation hardening.

Characteristics: Composition of ASTM A564 UNS S17400 (17-4 PH):

Composition of typical chemical 17-4 PH stainless steel:

Chromium (Cr): 15-17.5%

Nickel (Ni): 3-5%

Copper (Cu): 3-5%

Carbon (C): ≤0.07%

Manganese (Mn): ≤1.0%

Silicon (Si): ≤1.0%

The key characteristic of this alloy is that it can be solution heat treated to any level of strength, which makes it quite versatile for the application in various designs. Precipitation hardening is a process in which the material is treated with a high temperature followed by aging with lower temperatures attained to produce a high strength and high hardness.

Advantages of ASTM A564 UNS S17400 (17-4 PH):

High Strength and Hardness: In most cases, 17-4 PH can be heat-treated to very high levels of strength and hardness, making it the preferred material for high-stress applications such as parts to be used in aerospace and high-performance machines.

Good Corrosion Resistance: Even though 17-4 PH is not nearly as corrosion-resistant as some other austenitic stainless steels, such as 304 or 316, it still offers good resistance to corrosion in many environments, notably marine and mildly corrosive industrial settings.

Excellent Mechanical Properties: The alloy maintains excellent ductility, toughness, and wear resistance for applications that involve mechanical stres 17-4 PH can be easily machined and welded in the annealed condition, but its final properties may be adjusted by several heat treatments (H900, H1025, H1075, etc.) to acquire particular strength levels.

Common Heat Treatment Conditions:

H900: Offers maximum strength at somewhat reduced toughness.

H1025: Balances strength with good toughness.

H1075 and H1150: Provide the best corrosion resistance and toughness. Strength is a little lower than H900.

Popular Uses:

Aerospace Components (e.g., turbine blades, gears, and valves)

Chemical and Petrochemical Process Plant

Nuclear Waste Storage and Handling Equipment

Marine equipment and ship building components

High-strength shafts, bolts, and fittings.

Oil and Gas Wells- Drilling and Extraction machinery

ASTM A564 UNS S17400, also known as 17-4 PH, is the most versatile, high-strength stainless steel alloy available for processes and applications where corrosion and mechanical performance are of prime importance. Due to its characteristic ability to be heat-treated to various hardness levels, this alloy can be applied in demanding manners in an extensive range of applications.

ASTM A564 UNS S17400 Chemical Composition