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AISI 310H Stainless Steel Chemical Properties, Grade, Charts and Pdf

AISI 310H is the high carbon counterpart of AISI 310, which is a well-established austenitic stainless steel alloy. It has been observed to be chemically made up of approximately 25% chromium, 20% nickel, and 0.04 – 0.10% carbon content, which is higher than those of AISI 310 (0.03 – 0.05%). It holds more carbon which makes it highly resistant to creep and good with high strength at high temperature. Thus, it is suitable for applications like fireplaces and catalytic automotive parts. AISI 310H can be expected to have good oxidation, corrosion, and scaling resistance too just like AISI 310. These technicians together with designers typically use AISI 310H in projects like furnace construction, kilns, radiant tubes and other equipment in the industrial industry that requires high temperature. Complete charts and PDF files with information on its properties, grades, and composition are readily available for reference and specification purposes.

AISI 310H Austenitic Stainless Steel Chemical Composition And Grade Table

AISI 310H is an austenitic stainless steel characterized by its high-temperature-resistance as well as outstanding corrosion-resistance in multitude of environments. The chemical composition of this alloy often contains roughly 25% chromium and 20% nickel combined with a higher susceptibility to high temperatures, increasing its strength and resistance to creep. The amounts of manganese, silicon, phosphorus, sulfur, and iron also can be found in significant quantities in this grade. The AISI 310H alloy is of great importance in chemical processing, heat treatment and thermal processing equipment where high temperature and corrosion from air are common.

AISI 310H Austenitic Stainless Steel
Elements Fe Cr Ni Mn Si C P S
Min (%) 49.1 24 19 - - 0.04 - -
Max (%) 57 26 22 2.0 0.75 0.1 0.045 0.030

The Advantages and Disadvantages of AISI 310H Austenitic Stainless Steel

    Advantages:

  • High Temperature Resistance: AISI 310H displays great ability to withstand high temperatures what makes it be an adable material for uses in heat treatment furnaces, kilns and other environments with elevated temperatures.

  • Oxidation Resistance: It provides a rated strip thickness that has excellent resilience in oxidizing circumstances giving it a longer service life.

  • Corrosion Resistance: As opposed to other alloys AISI 310H shows excellent corrosion resistance in many corrosive environments, including of course solutions with chlorides.

  • Strength and Ductility: It is a good composition of strength and ductility enabling the manufacturers to produce intricate components having appropriate healthy structural integrity.

  • Weldability: The flexibility of AISI 310H in joining or combining parts by welding makes it a favored choice by fabricators.

    Disadvantages:

  • Cost: Unlike some other chromium nickel stainless grades, AISI 310H can be fairly costly because of the high nickel and chromium content.

  • Sensitization: At times, AISI 310, while highly resistant, may be liable to sensitization, and this may generate intergranular corrosion in certain conditions and environments.

  • Thermal Expansion: The coefficient of thermal expansion is very high, which may lead to dimensional change and local stress when the assembly undergoes thermal cycling. This can result in distortion and even failure in some assemblies.

  • Limited Cold Formability: AISI 310H is not as cold-formable as other milder stainless steels, thus it needs to be given appropriate attention in the forming processes.

  • Embrittlement at High Temperatures: A long exposure of more than 1000°C (1832°F) can lead to embrittlement, which reduces the mechanical properties and structural integrity of a spacecraft at extreme conditions.

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