S33400/Incoloy840

S33400/Incoloy840

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  Introduction Stainless steel grade 334 is a titanium and aluminum based austenitic stainless steel. This alloy provides better temperature scaling resistance than chromium-nickel stainless steels such as grade 304. It also has good oxidation resistance of up to 1038°C (1900°F). Grade 334 is commonly used as a sheathing material. The following sections will discuss in detail about stainless steel grade 334. Chemical Composition The chemical composition of stainless steel grade 334 is...


  • FOB Price: US $0.5 - 9,999 / Piece
  • Min.Order Quantity: 100 Piece/Pieces
  • Supply Ability: 10000 Piece/Pieces per Month
  • Port: Shenzhen
  • Payment Terms: L/C,D/A,D/P,T/T
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    Introduction

    Stainless steel grade 334 is a titanium and aluminum based austenitic stainless steel. This alloy provides better temperature scaling resistance than chromium-nickel stainless steels such as grade 304. It also has good oxidation resistance of up to 1038°C (1900°F). Grade 334 is commonly used as a sheathing material.

    The following sections will discuss in detail about stainless steel grade 334.

    Chemical Composition

    The chemical composition of stainless steel grade 334 is outlined in the following table.

    Element Content (%)
    Nickel, Ni 19-20
    Chromium, Cr 19-19.5
    Manganese, Mn 1
    Silicon, Si 0.75
    Phosphorus, P 0.02
    Sulfur, S 0.015
    Titanium, Ti 0.4
    Aluminum, Al 0.4
    Copper, Cu 0.2
    Carbon, C 0.03
    Iron, Fe Balance

    Physical Properties

    The physical properties of stainless steel grade 334 are tabulated below.

    Properties Metric Imperial
    Density 8.03 g/cm3 0.290 lb/in3

    Mechanical Properties

    The following table shows mechanical properties of stainless steel grade 334.

    Properties Metric Imperial
    Tensile strength 572.4 MPa 83020 psi
    Yield strength 241.4 MPa 35010 psi
    Modulus of elasticity 200 GPa 29000 ksi
    Elongation at break 40% 40%
    Hardness, Rockwell B 82 82

    Thermal Properties

    The thermal properties of stainless steel grade 334 are tabulated below.

    Properties Metric Imperial
    Thermal expansion co-efficient (@20-100°C/68-212°F) 17.04 µm/m°C 9.467 µin/in°F
    Thermal conductivity 12.9 W/mK 89.5 BTU in/hr.ft².°F

    Applications

    Stainless steel grade 334 can be applied in these areas:

    • Automotive exhaust systems
    • Sheathing material for heating elements
    • Emission control systems
    • In applications where resistance to high temperature degradation is essential

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