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CR 904L Stainless Steel Plate , 10mm Stainless Steel Sheet For Kitchenware

Categories Stainless Steel Plates
Brand Name: Baosteel/Tisco
Model Number: 904L
Certification: ISO/SGS/BV
Place of Origin: Jiangsu
MOQ: 1ton
Price: USD1000-5000USD PER TON
Payment Terms: L/C, T/T, Western Union
Supply Ability: 250tons per month
Delivery Time: within 10days after recieved the payment
Packaging Details: Standard seaworthy packaging / as per buyer’s request
Thickness: 0.4-3MM
Width: 1000-1200mm
Length: 2000-2400MM
Type: Plate
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    CR 904L Stainless Steel Plate , 10mm Stainless Steel Sheet For Kitchenware

    CR 904L Stainless Steel Plate , 10mm Stainless Steel Sheet For Kitchenware

    Specifications

    904L CR stainless steel plate for kitchenware


    1 length1000-6000mm
    2 width 1000-2500mm
    3 thickness:0.3-120mm


    Product Description

    Grade 904L stainless steel is a non-stabilized austenitic stainless steel with low carbon content. This high alloy stainless steel is added with copper to improve its resistance to strong reducing acids, such as sulphuric acid. The steel is also resistant to stress corrosion cracking and crevice corrosion. Grade 904L is non-magnetic, and offers excellent formability, toughness and weldability.

    Grade 904L contains high amounts of expensive ingredients, such as molybdenum and nickel. Today, most of the applications that employ grade 904L are replaced by low-cost duplex stainless steel 2205.

    Key Properties

    The following sections describe the properties of flat rolled products in ASTM B625. The specifications may not be identical for other products such as bar, tube and pipe.

    Composition

    The table below provides the compositional ranges of grade 904L stainless steels:

    Table 1. Composition ranges of grade 904L stainless steels

    GradeCMnSiPSCrMoNiCu
    904L

    min.

    max.

    -

    0.02

    -

    2

    -

    1

    -

    0.045

    -

    0.035

    19

    23

    4

    5

    23

    28

    1

    2

    Mechanical Properties

    The typical mechanical properties of grade 904L stainless steels are given in the table below:

    Table 2. Mechanical properties of grade 904L stainless steels

    GradeTensile Strength (MPa) minYield Strength 0.2% Proof (MPa) minElongation (% in 50mm) minHardness
    Rockwell B (HR B)Brinell (HB)
    904L4902203670-90 typical150

    Physical Properties

    The physical properties of grade 904L stainless steels are tabulated below:

    Table 3. Typical physical properties of grade 904L stainless steels

    GradeDensity
    (kg/m3)
    Elastic Modulus
    (GPa)
    Mean Co-eff of Thermal Expansion (µm/m/°C)Thermal Conductivity
    (W/m.K)
    Specific Heat 0-100°C
    (J/kg.K)
    Elec Resistivity
    (nΩ.m)
    0-100°C0-315°C0-538°CAt 20°CAt 500°C
    904L790019015--11.5-500952

    Grade Specification Comparison

    The following table outlines the approximate grade comparisons of 904L stainless steels:

    Table 4. Grade specifications of grade 904L stainless steels

    GradeUNS NoOld BritishEuronormSwedish SSJapanese JIS
    BSEnNoName
    904LN08904904S13-1.4539X1NiCrMoCuN25-20-52562-

    Possible Alternative Grades

    The suitable alternatives to 904L stainless steels are tabulated below:

    Table 5. Possible alternative grades to grade 904L stainless steels

    GradeReasons for choosing grade 904L
    316LA lower cost alternative, but with much lower corrosion resistance.
    6MoA higher resistance to pitting and crevice corrosion is needed.
    2205A very similar corrosion resistance, with the 2205 having higher mechanical strength, and at a lower cost to 904L. (2205 not suitable for temperatures above 300°C.)
    Super duplexHigher corrosion resistance is needed, together with a higher strength than 904L.

    Corrosion Resistance

    Grade 904L stainless steels have excellent resistance to warm seawater and chloride attack. The high resistance of grade 904L against stress corrosion cracking is due to the presence of high amounts of nickel in its composition. Moreover, the addition of copper to these grades develops resistance to sulphuric acid and other reducing agents in both aggressive and mild conditions.

    The corrosion resistance of grade 904L is intermediate between super austenitic grades, with 6% molybdenum content, and standard 316L austenitic grades. Grade 904L is less resistant to nitric acid than grades 304L and 310L, which are free of molybdenum. This steel grade needs to be solution treated following cold working, to achieve maximum stress corrosion cracking resistance under critical environments.

    Heat Resistance

    Grade 904L stainless steels offer good oxidation resistance. However, the structural stability of this grade collapses at high temperatures, particularly above 400°C.

    Heat Treatment

    Grade 904L stainless steels can be solution heat-treated at 1090 to 1175°C, following by rapid cooling. Thermal treatment is suitable for hardening these grades.

    Welding

    Welding of grade 904L stainless steels can be performed using all conventional methods. This grade does not require pre-heat and post-weld heat treatments. Grade 904L can be subjected to hot cracking in constrained weldment. Grade 904L electrodes and rods are used for welding grade 904L steels according to AS 1554.6.

    Fabrication

    Grade 904L stainless steels are high purity steels with low sulphur content. They can be machined using any standard methods. These grades can be readily bent to a small radius under cold conditions. Although subsequent annealing is not required in most cases, it should be carried out when the fabrication is performed under severe stress corrosion cracking conditions.

    Applications

    Some of the major applications of grade 904L stainless steels include:

    • Wiring in electrostatic precipitators
    • Oil refinery components
    • Seawater cooling devices
    • Gas scrubbing plants
    • Pulp and paper processing industries
    • Acetic, phosphoric and sulphuric acid processing plants

    904L CR stainless steel plate for kitchenware

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