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AISI 350 Stainless Steel Chemical Composition & Properties, Grades, Charts and Document

AISI 350 is an austenitic stainless steel which is highly renowned for its excellent resistance to corrosion and high strength, and can therefore be used for a variety of applications within industries such as chemical processing, food processing, and marine environments. Usually, its chemical composition is made up of of Cr, Ni, and Mn such as the ones containing low carbon content which reinforce the ductility and resistance to intergranular corrosion. AISI 350 series grades may have variations in composition while meeting the specific needs but still hold the austenitic structure even at cryogenic temperatures. Along with the engineers and manufacturers, it is common for the latter to use extensive tables, charts and PDF documents that detail the properties, grades, and applications of AISI 350 stainless steel as guidelines for the most suitable material choice for their projects.

AISI 350 Austenitic Stainless Steel Chemical Composition And Grade Table

AISI 350 is an austenitic stainless steel that is known for having excellent corrosion tolerance as well as high strength. The chemical composition of steel is dominated by iron, chromium, and nickel, but in addition, manganese, silicon, carbon, phosphorus, sulfur and nitrogen are also present in a definite percentage. This makes steel suitable for many applications in a variety of industries, such as aerospace, chemical engineering, and marine engineering due to its excellent weldability and formability. Its composition, mechanical properties, and suitable applications are indicated in the table for grade selection; such material is used in engineering projects that necessitate corrosion-resistance and durability.

AISI 350 Austenitic Stainless Steel
Elements Fe Cr Ni Mo Mn Si N C P S
Min (%) 72.69 16 4 2.5 0.5 - 0.07 0.07 - -
Max (%) 76.29 17 5 3.25 1.25 0.5 0.13 0.11 0.04 0.03

The Advantages and Disadvantages of AISI 350 Austenitic Stainless Steel

    Advantages:

  • High Strength: Provides superior tensile and yield strength, ideal for applications requiring high strength.

  • Good Corrosion Resistance: Offers high-level protection against corrosion in different conditions such as marine and chemical conditions.

  • Heat Treatable: It can be heat treated to strengthen its structure and give it the desired level of hardness.

  • Good Toughness: It does not become brittle or loses its hardness and ability to absorb shocks at low temperatures.

  • Excellent Fatigue Resistance: It has good endurance in cyclic loading which means that it is suitable for components that are subjected to stress in cycles.

    Disadvantages:

  • Cost: This is due to the fact that the material contains alloying elements and requires processing.

  • Difficult to Machine: Higher hardness and strength are disadvantageous as they increase the difficulty and duration of the machining process.

  • Weldability Issues: It is very sensitive to welding parameters to avoid defects and to retain the properties of the material.

  • Susceptibility to Stress Corrosion Cracking: It can be susceptible to stress corrosion cracking in environments with high concentrations of chloride ions.

  • Limited Availability: Less readily available than other grades of stainless steel which can be an issue in terms of sourcing and delivery.

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Frequently Asked Questions

FAQs
What is the chemical composition of AISI 350 stainless steel?

AISI 350 typically contains iron, 15-17% chromium, 4-5% nickel, and 1. 25-1. 75% molybdenum, along with smaller amounts of other elements like carbon, silicon, and manganese.

What are the common applications of AISI 350 stainless steel?

It is used in aerospace components, high-strength fasteners, marine applications, and industrial equipment that require high strength and corrosion resistance.

What grades of AISI 350 stainless steel are available?

AISI 350 is generally provided in one grade but can be processed to different specifications based on heat treatment and mechanical property requirements.

How does AISI 350 stainless steel compare to AISI 316 in terms of corrosion resistance?

AISI 350 has similar corrosion resistance to AISI 316 but offers higher strength, making it suitable for more demanding applications.

Raw Material Prices (Updated as on: 06 Oct 2024 01:52 PM) LIVE RATES

MetalsPrice/TonnePrice/KG
Nickel$17,750₹1,491.37
LME$17,831₹1,498.13
Copper$10,099₹848.47
LME$9,935₹834.69
Aluminum$2,636₹221.50
LME$2,665₹223.94
Zinc$3,160₹265.53
LME$3,170₹266.35
Lead$2,141₹179.90
LME$2,154₹180.99

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Stainless Steel
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