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Premium 309(309S) SS Bar, heat - proof

The 309 (309S) round steel is composed of a unique blend of chromium and nickel, which provides outstanding oxidation resistance and enhances its ability to perform in elevated temperatures. With a temperature tolerance of up to 2100°F (1150°C), this steel is perfect for applications that require durability and reliability under heat stress. The addition of sulfur in the 309S variant further improves machinability, making it easier to work with while maintaining its structural integrity.

    specification

    Product Name

    309(309S) stainless steel bar

    Standard

    ASTM,AISI,JIS,GB, DIN,EN

    Diameter

    4-600mm (3/8”-25”)

    Surface:

    BA,2B,NO.1,NO.4,4K,HL,8K

    Length

    2000mm, 2438mm, 3000mm, 5800mm, 6000mm,12000mm,etc

    Certification

    ISO, SGS,BV

    Edge

    Mill Edge /Slit Edge

    Technique

    Hot Rolled, Cold Rolled, Cold Drawn, Forged

    Grade(ASTM UNS)

    201, 202, 304, 3O4L, 304H, 316, 316L, 316Ti, 2205, 330, 630, 660, 409L, 321, 310S, 410, 416, 410S, 430, 904, 347H, 2Cr13,3Cr13 Duplex:2205,2507 etc

    Price Term

    CIF CFR CNF FOB EX-WORK

    Grade (EN)

    1.4301,1.4307,1.4541,1.4401,1.4404,1.4571,1.4438,1.4539,1.4547,1.4529,1.4410,1.4501,1.4462,1.4845,1.4542,,etc

    Payment Terms

    T/T  L/C and Western Union etc

    Product Display

    • High-quality 309 (309S) stainless steel bar with excellent heat resistance for high-temperature applications.
    • High-quality 309 (309S) stainless steel bar with excellent heat resistance for high-temperature applications.
    • High-quality 309 (309S) stainless steel bar with excellent heat resistance for high-temperature applications.

    Chemical Composition

    C

    Si

    Mn

    Cr

    Ni

    S

    P

    ≤ 0.08

    ≤ 0.75

    ≤ 2.0

    22.024.0

    12.015.0

    ≤ 0.03

    ≤ 0.045

    Mechanical Properties

    Tensile Strength Kb (MPa)

    Yield Strength σ0.2 (MPa)

    Elongation D5 (%)

    Hardness

    ≥515

    ≥205

    ≥35

    ≤ 217HB

    Physical Performance

    Density(g/cm³)

    Modulus of Elasticity(Gpa)

    Coefficient of Thermal Expansion(10-6/°C)

    Coefficient of Thermal Conductivity(W/m*K)

    Resistivity(ΜΩ. cm)

    7.98

    200

    14.9

    15.6

    78

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