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China Suppliers S355J2G3 Steel Factory - High Yield DIN St52-3N Carbon Manganese Structural Steel
China Suppliers S355J2G3 Steel Factory - High Yield DIN St52-3N Carbon Manganese Structural Steel

China Suppliers S355J2G3 Steel Factory - High Yield DIN St52-3N Carbon Manganese Structural Steel

PRODUCT OVERVIEW

S355 is a high yield carbon manganese non-alloy steel recognized for its outstanding mechanical properties. The designation S355 indicates that this steel grade has an average minimum yield strength of 355 Mpa. Known for its exceptional strength and weldability, this structural steel can be easily welded to other compatible steel types, making it a preferred choice among construction and engineering sectors. With a low carbon equivalent, S355 also offers excellent cold-forming capabilities. Our S355J2G3 grade steel is typically supplied in a normalized condition, ensuring optimal performance for diverse applications. As a leading supplier and factory in China, we guarantee the highest quality of S355 steel to meet your project needs.

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    Product Detail

    GENERAL CHARACTERISTICS

    This grade of steel is carbon manganese, high yield non alloy steel. It is called S355 because of the average minimum yield for this material is 355 Mpa. As a structural steel, it has excellent strength and weldability. It can be readily welded to other weldable steel. For its low carbon equivalent, it possesses good cold-forming properties. S355J2G3 is generally supplied in a normalized condition.

    Designation by Standards

    Mat. No. DIN EN AISI
    1.0570 St52-3N - -

    Chemical Composition (in weight %)

    C Si Mn Cr Mo Ni V W Others
    max. 0.22 max. 0.55 max. 1.60 - - - - - -

    Properties & Applications

    Description

    Unalloyed structural steel.

    Applications

    Common structural steel for welded assemblies, Re>355 N/mm2. Guaranteed toughness at 0 oC. It can be used for statically and dynamically stressed constructions.

    Physical Properties

    Average values at ambient temperature:
    • Modulus of elasticity [103 x N/mm2]: 210
    • Density [g/cm3]: 7.80

    Heat Treatment & Processing

    Soft Annealing

    Heat to 650-700oC, cool slowly.

    Hardening

    Harden from a temperature of 860-890oC followed by oil or water quenching.

    Tempering (Normalizing)

    Normalizing temperature: 860-890oC.

    Forging

    Hot forming temperature: 1050-850oC.

    Machinability

    Machinability is good, rated at 90% that of the 1112 alloy used as a 100% machining rated steel.

    Frequently Asked Questions (FAQ)

    Q: What is the meaning of the name S355?
    A: This steel grade is designated as S355 because the average minimum yield strength for this structural material is 355 MPa.
    Q: What are the equivalent designations for 1.0570 steel?
    A: According to standards, Material Number 1.0570 corresponds to DIN St52-3N steel.
    Q: What is the chemical composition of S355 steel?
    A: The chemical composition (in weight %) of this steel is Carbon (C) max. 0.22%, Silicon (Si) max. 0.55%, and Manganese (Mn) max. 1.60%.
    Q: What are the recommended temperatures for hardening and normalizing S355?
    A: Hardening is performed from a temperature of 860-890°C followed by oil or water quenching. The normalizing temperature is also between 860-890°C.
    Q: How is the machinability of S355 steel rated?
    A: The machinability of S355 is considered good. It is rated at 90% of the machinability of 1112 alloy, which serves as the 100% baseline standard.
    Q: What are the typical physical properties of this steel grade?
    A: At ambient temperature, S355 steel has a Modulus of Elasticity of 210 x 103 N/mm2 and a density of 7.80 g/cm3.